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Places in Ohio where asbestos was known to have been used.
Aberdeen
- Dayton Power and Light Company
- J M Stuart Station
- Jm Stuart Electric Gen Station
- Oberle Jordre Company
- Stuart Generating Station
Addyston
- Bayer Corp Gerald W. Leas
- Bayer Corp Port Plastics
- Ineos
- Monsanto Chemical Company
- Port Plastics Plant
- U S Cast Iron Pipe and Laundry Company
Akron
- A. Shulman Company
- Adamson United Company
- Aircraft Braking Systems
- Akron and Cuyahoga Falls R.I. Company
- Akron Brewing Company
- Akron Childrens Hospital
- Akron City Hospital
- Akron Electric Company
- Akron Gas Company
- Akron General Health
- Akron General Hospital
- Akron Heating and Ventilating. Company
- Akron Iron Company
- Akron Milling Mining and Manufacturing Company
- Akron Rubber Reclaiming Company
- Akron Safety Building
- Akron St. Railway and Illnig. Company
- Akron Standard Mold
- Akron Steam Heating Company
- Akron Steel Treating Plant
- Akron Thermal
- Akron Tower Supply Company
- Akron Univ Womens Dorm
- Akron University
- Akron Water Works Company
- Akwell Corp
- Alkali Rubber Company
- American Cereal Company
- American Hard Rubber Company
- American Rubber and Tire Company
- Apron City Hospital
- Atlantic Foundry Company
- B F Goodrich Rubber Company
- B. F. Goodrich Chemical Company
- Beach St. Heating
- Brown Graves Company
- C.P. Hall Chemical
- Carrier Corporation
- Castle Homes
- City Hospital of Akron
- City of Akron, Department. of Public Services
- Crawford Garage
- Crouse Clay Products Company
- Defense Plant Corp; Plant C
- Diamond Crystal Colonial Salt Divison
- Diamond Crystal Salt Company
- Diamond Rubber Company
- F Schumacher
- Falor St. Plant
- Feroit Bros.
- Firestone Tire & Rubber Company
- General Foods Corporation
- General Tire & Rubber Company
- Geo. J Renner Brewing Company
- Goodrich Chemical Company
- Goodyear Aircraft Plant
- Goodyear Tire & Rubber Company
- Gorge Power House
- H.B. Camp Company
- Hadghorn Construction
- Industrial Artcraft
- International Harvester Company
- J.C. Heintz Company
- J.W. Geopfert
- James C. Heintz
- John Knapp Sons Foundry
- Kelly Springfield Tire and Rubber Company
- Killian Manufacturing Company
- Kovatch Castings
- Lockheed Martin Maritime Systems
- Loew’s Theatre
- M Burkhardt Brewing Company
- Mahoning Valley Supply, Inc.
- Marathon Tire and Rubber Company
- Mau-Sherwood Supply Company
- Mcnell Machine & Engineering Company
- Meggitt Aircraft Braking Systems
- Midwest Rubber
- Miller Rubber Company
- Mohawk Rubber Company
- Muehlstein Company, Inc.
- National Drywall, Incorporated
- National Rubber Company
- National Rubber Machinery
- Naval Air Training Station
- Northern Ohio Traction and Light Company
- Noveon
- Nurses Home City Hospital
- O. C. Barber
- Ohio Edison
- Ohio Edison Company
- Parker Drywall
- Peoples Hospital
- Philadelphia Rubber Works Company
- Portage Hotel Company
- Portage Machine Company
- Portage Straw Board Company
- Quaker Oats Company
- R C A Rubber Company
- Renner Brewing Company
- Richards Fence
- Robinson Brothers Company
- Robinson Clay Products Company
- Rubber Company
- Schriber Sheetmetal
- Sears, Chapel Hill Shopping Center
- Seiberling Plant
- Siberling Rubber
- St Paul’s Church
- Star Rubber Company
- Thomas Phillips Company
- Toronto Station
- University of Akron
- Vicksburg Railroad Power and Manufacturing Company
- W.F. Murdock
- Wellman Seaver Morgan Company
- Werner Company
- Western Ohio Railway Company
- Whitman and Barnes Manufacturing Company
- Whitmore Robinson and Company
- William Lay Company
- Wte Corp
Alliance
- Alliance Cold Stge. and Packg. Company
- Alliance Gas and Power Company
- Alliance Research Center
- Alliance Tubular Products
- American Steel Casting Foundries Company
- Arbuckle Ryan Company
- Armour and Company
- Babcock & Wilcox Company
- City Water Department
- Crane Company
- Davison Chemical Company
- Defense Plant Corp
- Johns – Manville
- Lexington Abrasives, Inc.
- Mcdermott Technology Inc.
- Morgan Engineering Company
- Mount Union College
- N&W
- Reeves Brothers Company
- Residence Center
- Rush Street Boiler House
- Solid Steel Company
- Stark Electric Railroad Company
- Suburban Light and Power Company
- Transue and Williams Steel Forging Company
Ashland
- Armco
- Ashland College
- Ashland High School
- Ashland Oil
- Ashland University
- Babcock and Wilcoxx Company
- Cleveland Electric Illluminating Company
- EMD Components
- F.E. Myers and Bro
- Faultless Rubber Company
- Krebs Calkins Company
- Pentair, Inc.
- U-Brand Corporation
Ashtabula
- Aetna Rubber Company
- American Fork and Hoe Company
- Archer Daniels Midland Company
- Ashtabula C Plant
- Ashtabula General Hospital
- Ashtabula Powerhouse
- Ashtabula Scrap & Reclamation Plant
- Ashtabula Tele Company
- Bechtel Corporation
- Bow Socket Company
- Bridgeport Brass Company
- C.E.I.
- Cabot Corporation
- Cabot Titania Corp
- Cabot Titania, Inc.
- Cleveland Electric Illuminating
- Detrex Chemical
- Diamond Alkali
- Diamond Shamrock Corporation
- Dupont Chemical
- Eldon Cronquist, Inc.
- Electric Metallurgical Company
- Electro Metalurgical Div Union Carbide and Carbon Corporation
- Firstenergy Corporation
- General Tire & Rubber Company
- General Tire Chemial Plant
- Glen L Martin Chemical Plant
- Great Lakes Engineering Works Shipyard
- Lake Shore and Mich Southern Railway Company
- Linde Air Products Company
- Linde Company
- Mallory Sharon Metals Corporation
- Mallory-Sharon Titanium Corporation
- McBride Plbg & Htg Mallory Sharon Mtls Corp
- Metal Reduction Plant
- Millennium Chemical
- Molded Fiber Glass Body Company
- Molded Fiberglas Body Company
- National Distillers Corporation
- New Jersey Zinc
- New York Central System
- New York Railroad
- Olin Mathieson Chemical
- Olin Mathieson Corp
- Penna and Ohio Railway
- Penna Railroad Lines West of Pittsbg.
- Pennsylvania Company
- R. M. I. Company
- Ralph M. Parsons Company & Stouffer Chemical Company
- Reactive Metals Inc
- Reliance Electric
- Rmi Metals
- S. C. M. Chemical
- Sherwin Williams Company
- Stamberger Company
- Stauffer Chemical Company
- Thomas Jefferson Elementary School
- Titanium Plant
- True Temper Group
- U.S. Industrial Chemicals Company
- Union Carbide Chemical
- Union Carbide Corporation
- Union Carbide Electro Metallurgical
- Union Carbide Metals Company
- Us Industrial Chemical Corp
Ashtabula Harbor
- Ashtabula Water Supply Company
- Cleveland Electric Illuminating Company
- Lake Shore and Michigan Southern Railway Company
- Pittsburg and Conneaut Dock Company
- Pollock – Becker Company
- Thomas Jefferson ElementarySchool
Athens
- Athens State Hospital
- Baltimore & Ohio Team Track
- City Hall
- Columbus & Southern Ohio Electric
- Martin Builders
- Ohio State University
- Ohio University
- Service Products, Inc.
- Texas Eastern Transmission Corporation
Avon
- Avon Beach Station
- Bolling Oven
- Cleveland Aircraft
- Cleveland Electric Illuminating
- G.E.
- H.K. Ferguson
- Van Sickle Ind.
Avon Lake
- Arrow Aluminum
- Avon Lake Power Plant
- B F Goodrich Chemical Company
- B. F. Goodrich Development Center
- B.F. Goodrich Chemical Company
- Bf Goodrich Experimental Station
- Bf Goodrich, Avon Lake Chemical
- Cincinnati Gas & Electric
- Cleveland Electric Company
- Cleveland Electric Illuminating Company
- Fruehauf Trailer
- Goodrich Chemical Company
- Goodrich Experimental Station
- Goodrich Gulf Chemical Company
- Illuminating Company
- Orion Power Holdings Inc
- Plastonics
- T. O. Murphy Company
- Us Steel
- Watteredge-Uniflex
- Western Enterprise
Barberton
- Akron Rubber Reclaiming Company
- Akron Standard
- America Strawboard Company
- American Aluminum Company
- American Sewer Pipe Company
- Anna Dean Farm
- Babcock & Wilcox Canton Works
- Babcock & Wilcox Company
- Bandw Fossil Power Generation Divon
- Barberton Aluminum
- Barberton Citizens Hospital
- Barberton City Schools
- Barberton Hs
- Barberton Land and Hotel Company
- Barberton Laundry
- Barberton Manufacturing. Company
- Bebensburg Power Company
- Columbia Chemical Div
- Columbia Southern Cement
- Columbia Southern Chemical Company
- Creedmore Cartridge Company
- Diamond Brick Company
- Diamond Match Company
- Electric Rubber Reclaiming Company
- Heating Plant
- Lambert Tire and Rubber Company
- Lectromelt
- M & C Tool Crib
- Midwest Rubber Company
- Midwest Rubber Reclaimin Company
- National Drilling Mach Company
- O. C. Barber
- Ohio Brass Company
- Ohio Pipeline
- Oxford Paper Company
- P.P.G. Industries
- Palysar Rubber Service
- Paul Henry Ice Plant
- Pittsburgh Plate Glass Company
- Pittsburgh Valve and Fitting Company
- Portage Rubber Company
- Ppg Industries
- Pure Gum Specialty Company
- Republic Steel
- Ric-Wil Company
- Rockwell Manufacturing Company
- Rubber Products Company
- Seiberling Plant
- Seiberling Tire & Rubber
- Southern Alkali Corporation
- Sterling Works
- Stirling Ave Plant
- Weld Rod Dept
- Yoder Brothers Inc
Bedford
- Abex Corporation
- Akron, Bedford and Cleveland Railway Company
- Bedford High School
- Bedford Pilot Plant
- Best Foundry Company
- Brush Laboratories
- Clevite Corporation
- Fabricated Metal Spec.
- Halex Division
- Hawthorne Valley Club
- I. Schuman
- Jack Heintz Inc.
- Kelley Steel Erec.
- Lear Siegler Inc Power Equip Div
- Lester Engineering
- Lester Industries
- Mason Tire and Rubber Company
- Mcmyler Interstate Company
- Northern Ohio Traction Light Company
- Owen Tire and Rubber Company
- Piezoelectric Division
- Russo Orn.
- S.K. Wellman Company
- Scott & Fetzer
- Taylor Chair Company
- Winnen Incinerator
- Wunderlich Fabricating Company
Bellaire
- Bellaire Gas and Electric Company
- Bellaire Light and Power Company
- Bellaire Nail Works
- Bellaire Steel Company
- Carnegie Steel Company
- National Steel Works
- Semet-Solvay Company
- W.S. Carroll
Bellefontaine
- C.C.C. and St. L.Railway Company
- Cleveland, Cincinnati Chicago and St. Louis Railway
- Conrail
- New York Central System
- Ohio Water Works Department
Belpre
- Ashland Oil
- Carbon Black
- Chevron Asphalt Company
- Marrietta Plant Project 7
- Shell Chemical Company
- Shell Oil Company
- Union Carbide Bakelite
Berea
- Alloy Engineering
- Alloy Industry
- Cleveland Alloy
- Foseco Inc
- German Methodist Asphan Asylum
- Goodyear Tire
- Industrial Power Piping
- Poro Incorporated
Beverly
- American Electric Powerhouse
- Beverly Powerhouse
- Dow Chemical
- Interlake Iron Corporation
- Muskingum Power Station
- Mustingum River Power Plant
- Ohio Power Company
Bluffton
- Bluffton College
- Central Ohio Light & Power
- Ohio Power Company
Bowling Green
- Acands, Inc.
- Bowling Green Light and Power Company
- Bowling Green State University
- Chrysler
- H.J. Heinz Company
- Lake Erie Bowling Green and Napoleon Railway Company
- Pearl Oil Company
Brecksville
- B.F. Goodrich Research Lab
- Broadview Heights Hospital
- Goodrich Research Center
- Veterans Administration Hospital
Bridgeport
- Aetna Iron and Steel Company
- Aetna Stand Iron and Steel Company
- Aetna Standard Ins Company
- Aetna Standard Ir. Corporation
- America Sheet Steel Company
- Standard Iron Company
Brilliant
- American Electric Power Service Corp
- Babcock & Wilcox
- Brilliant Power Station
- Buck Power
- Buckeye Power Inc.
- Cardinal Operating Company
- Cardinal Power Plant
- Cardinal Power Plant
- Cardinal Power Station
- Cardinal Powerhouse
- Ohio Power Company
- Steubenville Mingo and Ohio Valley Tract Company
- Tidd Plant
- Union Boiler
Brookpark
- Alcoa
- Castalloy
- Chevrolet Motor Plant
- Ford Foundry
- Ford Motor Brookpark
- Ford Motor Company
- Foseco Corporation
- Goodyear Tire
Bryan
- Becker, Barnes & Becker Rendering Company
- Bryan Light Dept
- Bryan Municipal Light & Power
- Hootman Aluminum Foundry
- Pet Milk Company
- Raymond P. Life Company
- Van Camp Packing Company
Bucyrus
- American Clay Machinery Company
- Bucyrus Electric Light Company
- Bucyrus Gas and Electric Company
- Carroll Foundry and Machine Works
- G.E.
- Hadfield Penfield Steel Company
- Lutz Concrete Company
- Timken Roller Bearing Company
Cambridge
- American Metal
- American Sheet and Tin Plate Company
- Cambridge Brewing Company
- Cambridge Glass Company
- Cambridge State Hospital
- Centria
- E.G. Smith Construction Products
- Hoffman – La Roche
- National Cash Register Company
- Salt Fork State Park
- Universal Potteries Inc
- Vanadium Corporation
- Wayne Mining Company
Campbell
- Jones & Laughlin Steel Company
- Ltv Campbell Plant
- Ltv Sheet and Tube
- Republic Steel
- Youngstown Sheet and Tube Company
Canal Dover
- American Sheet and Tin Plate Company
- Dover Forge and Iron Company
- Hardesty Milling Company
- Penn Iron and Coal Company
- Reeves Coal Company
- Reeves Iron Company
Canton
- A.K. Property Corp
- Acme Wet Wash Laundry
- Allen School
- American Electric Power Company
- American Forge and Machine Company
- American Roll and Foundry Company
- American Sheet and Tin Plate
- Ap Green F B Company of Mich
- Ap Green F B Company of Ohio
- Ap Green Refractories Company
- Apple Creek State Hospital
- Ashland Oil & Refining Company
- Aultman Health Services
- Aultman Hospital
- Babcock & Wilcox Canton Works
- Baltimore & Ohio Railroad Company
- Belfonti
- Bell Stone School
- Bergr Mbg. Company
- Bliss Company
- Bormot Company
- Brand Plastic
- Brownflo Sicker & Comb Company
- Cambridge State Hospital
- Canton Bearing Plant
- Canton Casting
- Canton City Sewage Disposal Plant
- Canton Die
- Canton Drop Forging & Manufacturing. Company
- Canton Electric Company
- Canton Electric Light and Power Company
- Canton Forge and Axle Works
- Canton Forge Plant
- Canton Hughes Pump Company
- Canton Laundry and Cleaning Company
- Canton Light Heat and Power Company
- Canton Malleable Iron Company
- Canton Saw Company
- Canton Screen Plant
- Canton Sewage
- Canton South High School
- Canton Steel Company
- Canton Steel Foundry Company
- Carnahan Tin Plate and Sheet Company
- Carnegie Ill. Steel Corporation
- Cedar Locust
- Cedar School
- Central Alloy Canton
- Central Alloy Steel Corp
- Central Catholic High School
- Cleveland Axle Manufacturing Company
- Cloverleaf High School
- Cloverleaf School
- Columbia Hca Healthcare
- Columbia Southern Chemical Corporation
- Columbia Southern Personal Building
- Crane Company
- D&H Machine
- Defense Plant Corp
- Diamond Crystal Salt
- Diebold Safe and Lock Company
- Dover Library
- Dunlap Hospital
- East Fairfield Church
- East Ohio Gas Company
- Ed Hart Company
- Edward R. Hart Company
- Erwine School
- Evans Savings & Loan
- Falcon Tin Plate Company
- Firestone Synthetic Rubber & Latex
- Firestone Tire & Rubber Company
- First National Bank
- First U.P. Church
- Ford Canton Forge Plant
- Ford Motor Company
- Ford-Canton Forge Plant
- Franklin School
- Gambrinous Plant.
- Garaway High School
- Garfield School
- General Electric
- General Motors Corporation
- General Tire Research
- Goodyear Aerospace
- Goodyear Aircraft Company
- Goodyear Tire & Rubber Company
- Gorell School
- Grace Evangelical Church
- Green A P Refractories of Ohio
- Green Jr High School
- H. A. Preston School
- Hammond Acoustical Company
- Harrison School
- Hartford Junior High School
- Helfrich Die Cast
- Hellenic Cultural Center
- Hercules Motor Corporation
- Hess and Clark
- Holmes East High School
- Hoover
- House of Loretta
- Hupp Corporation
- Hygienic Dental Job
- Industrial Fabricating Job
- Irwin School
- J M Smucker Company
- J&L Steel
- J. C. Penney
- J.H. Mclain Company
- Jones and Laughlin Steel Company
- Kent State University
- Knight Tire and Rubber Company
- Lawson Dairy
- Lima State Hospital
- Lincoln School
- Linde Air Products Company
- Longcoy Elementary School
- Ltv Republic Steel
- Ltv Sheet and Tube
- Mansfield Hospital
- Marathon Ohio
- Masonic Temple
- Medical Center Association. Ltd
- Merchants Heat Light and Power Company
- Mt. Union College
- New Philadelphia School
- Northern Ohio Traction and Light Company
- Ohio Bell Stow
- Ohio Power Company
- Ohio Products
- Ohio Tar & Asphalt
- Old Trial School
- Orville Municipal Light
- Osnaburg Township School
- Phipps A J Company
- Pinegrove Twp School
- Pittsburgh Plate Glass Company
- Poor & Company
- Quaker Oats Company
- Reiter Corporation
- Renkert Building
- Replublic Steel Corporation
- Republic Stamping and Enameling Company
- Republic Stamping and Enamelling Company
- Republic Steel Corporation
- Republic Technologies
- Reynolds Memorial Hospital
- Roll Machine Works
- Roosevelt School
- Rubber Main Job
- Rubbermaid
- Sebring Tire
- Seiberling Rubber
- Springfield Manufacturing.
- St. Francis Convent
- St. Joseph Hospice
- St. Joseph School Addition
- St. Thomas Aquinas High School
- St. Thomas Hospital
- Stark County Jail
- Stark Rolling Mill Company
- Stark School
- Steam Vanadium Corporation
- Superior Dairy Company
- Superior Sheet Steel
- The Timken Corporation
- Timken “Gambrinus” Bearing Plant
- Timken Company
- Timken Mercy Hospital
- Timken Mercy Medical Center
- Timken Products
- Timken Roller Bearing Company
- Timken Steel Harrison Plant
- Tri Way School
- Tuscarawas Valley High School
- Twinsburg Pumping Station Heating
- U.S. Naval Ordnance Plant
- U.S. Steel Corporation
- U.S. Steel Roll & Mach.
- Union Metal
- United Alloy Steel Corp
- United Engineering
- United Furnace Company
- United States Post Office Job
- United Steel Company
- Valley Job
- Wallace & Tiernan Inc.
- Washington High School
- Wean United
- Westinghouse
- Wheeling Hospital Job
- Whitman and Barnes Manufacturing Company
- Wilson Rubber Company
- Wooster College
- Wooster Municipal Building
- Wright Wrench and Forging Company
- Wright Wrench Manufacturing Company
- Y.M.C.A.
Carthage
- Chatfield Manufacturing Company
- Elforose Sugar Company
- Hess Spring and Axle Company
- J. B. Campbell Manufacturing Company
- Longview Hospital
- Lunkenheimer Valve Company
- Union Distilling Company
Celina
- Celina Stearic Acid Company
- Decatur Ind. Inc.
- Mersman Brothers Brandts Company
- Municipal Power Plant
- Somers Corporation
Cheshire
- Aep Gavin Plant
- Aep Gen. James A. Gavin Plant
- Aep Kyger Creek Power Plant
- Cheshire Power Station
- Gavin Power Plant
- General James M. Gavin Plant
- J.M. Gavin Power Plant In Plant
- Kyger Creek Power Plant
- Ohio Electric Company
- Ohio Power Company
- Ohio Valley Electric Corporation
Chillicothe
- Alcoa
- B & O
- Champion Paper
- Chilliclothe Mills Rec Area
- Chillicohigh School
- Chillicothe Mills
- Chillicothe Paper Company
- Chillicothe Tire and Rubber Company
- Glatfelter
- Malone Sewing Machine Company
- Mead Corporation
- Mead Pulp and Paper Company
- Mead Straw Pulp Company
- Ross County Medical Center
- Rust Engineering
- Southern Ohio Insulation Company
- Veterans Administration Hospital
Cincinnati
- A E Burkhardt and Company
- A. Gottlieb Container
- A. H. Pugh Printing Company
- A.S. Taft Power Building
- Acands, Inc.
- Acme Sach & Door
- Air Nitrates Corp
- Alcohol Plant Tank
- Allis-Chalmers Company(Norwood Plant)
- Alms and Doepke Company
- American Bituminus & Asphalt
- American Book Company
- American Diamalt Company
- American Oak Leather Company
- American Portland Cement Company
- American Tool Works
- Americn Cook Company
- Andrew Jergens Company
- Andrews Soap Company
- Ap Green Fire Brick Company of Ohio
- Ap Green Refractories Company
- Ap Green Services Division
- Aquarium
- Arnold Hoffman Company
- Atkins & Pearce Manufacturing Company
- Ault-Wilbong Company
- Avco Corporation
- Aventis Pharmaceuticals
- B. & O.
- B. F. Goodrich Siding
- B. F. Goodrich Spur
- B.F. Goodrich Company
- Baldwin Company
- Baldwin Piano Company
- Baltimore & Ohio Railroad
- Basic Science Building
- Beekman “A” Housing Project
- Benjamin Hey Company
- Berger Brewing Company
- Bernert Heat Treating
- Bethesda Hospital
- Bethesda Oak Hospital
- Bethesda Steam Line
- Big Four Railway Company
- Black Pollak Iron Company
- Blymer Ice Machine Company
- Board of City Affairs
- Board of Education School District
- Bob Evan’s Restaurant
- Brauer Supply
- Breeding Insulation Company Inc.
- Briggs Manufacturing Company
- Brighton Corporation
- Brown Plastering Company
- Bruckman Brewing Company
- Buckeye Cotton Oil Company
- Buckeye Foundry Company
- Bulk Mail
- Bullock Elec and Manufacturing Company
- Burger Brewing
- Butler County Jail
- Canal Street Garage
- Carew Building
- Carew Tower Building
- Carrousel Shopping Center
- Carthage Mills. Inc.
- Central Thomson Houston Company
- Central Trust
- Central Union Depot and Railway Company
- Chas Boldt Company
- Chevron Asphalt Company
- Children’s Home
- Children’s Hospital
- Christ Hospital
- Christian Moerlein Brewing Company
- Cincinnati Abbatoir Company
- Cincinnati and Columbus Traction Company
- Cincinnati and Eastern Electric Railway Company
- Cincinnati and Newport Railway Company
- Cincinnati and Suburban Bell Telephone Company
- Cincinnati Bell
- Cincinnati Car Company
- Cincinnati Chemical Company
- Cincinnati Children’s Hospital & Medical Center
- Cincinnati Club
- Cincinnati Coffin Company
- Cincinnati Corrigating Company
- Cincinnati Country Club
- Cincinnati Edison Electric Company
- Cincinnati Electronics
- Cincinnati Gas and Electric Company
- Cincinnati General Hospital
- Cincinnati Gymnasuim
- Cincinnati Ice Manufacturing and Cold Storage Company
- Cincinnati Industries Inc
- Cincinnati Machine
- Cincinnati Machine Unova
- Cincinnati Masonic Temple Company
- Cincinnati Milacron
- Cincinnati Milling Machine Company
- Cincinnati Municipal Airport
- Cincinnati Music Hall Association
- Cincinnati Post Office
- Cincinnati Rubber Manufacturing Company
- Cincinnati Savings Curtain Wall
- Cincinnati Specialties
- Cincinnati Street Railway Company
- Cincinnati Suede
- Cincinnati Terminal Warehouse Company
- Cincinnati Traction Company
- Cincinnati Union Terminal Company
- Cincinnati Water Works
- Cincinnati Work House
- Cincinnati, Newport, and Covington Railway
- City and Suburban Telegraph Ass’N
- City Hall
- City of Cincinnati Department of Public Works
- City of Cincinnati Water Works Department
- Clopay Building
- Clyffside Brewing Company
- Coca Cola Bottling Works Company
- Cognis Corporation
- Collective Contract
- Columbia Park Station
- Columbia Power Company
- Consolidated Telephone
- Constellation Steel Mill
- Container Corp of America
- Container Corporation
- Convention Hall
- Cook Well Strainer Company
- Coryville Ice Company
- Crane & Breed Casket Company
- Crawford Power
- Crescent Building
- Crest Hills Junior High School
- Crosley Div Avco Manufacturing and Company
- Crosley Radio Corp
- Crystal Springs Ice Company
- D. T. Williams Valve Company
- Davis Tailoring Company
- Dayton Power and Light Company
- Deaconess Hospital
- Diamond Shamrock Chemical Company
- Division-Weiskopf
- Dixie Terminal
- Dracket Company
- Dues Warehouse
- E Kahn’s Sons Company
- Eagle Pitcher Company
- East Evanston Elementary School
- East Side High School
- Eastman Kodak Company
- Edgecliff Hi-Rise
- Edwards Building Company
- Egan Company
- El Matador Bar
- Electric Auto Light Company
- Elizabeth Gamble Deaconess Home Assoc
- Emerald Materials
- Emery Bleach Facilities
- Emery Industries Inc
- Emery Parking Deck
- Emory Industries
- English Woods
- Essex House
- Evendale Plant
- Excelsior Laundry Company
- F B Morgan Power Company
- F.L. Emmert Company
- Factory Power Company
- Fayette Memorial Hospital
- Federal Building
- Federal Color Lab
- Federal Office Building
- Federal Reserve
- Ferron Concrete Construction Company
- First National Bank Building
- Fischer Industries Inc
- Fleischmann Company
- Flight Propulsion Laboratory Dept.
- Fob Plenums
- Fomoco Duct Insulation
- Ford Motor Company
- Forest Hills School
- Forest Park Middle School
- Formica Corporation
- Formica Insulation Company
- Fox Paper Company
- Franklin Enterprises, Inc.
- Freiberg Workum
- French Bauer, Inc.
- French Bros-Bawer Company
- Gardner Board and Carton Company
- Garfield Tower
- General Electric Company
- General Hospital
- General Insurance Company
- General Protestant Orphan Home
- Geo. W. Dittman
- Geo. Wiedemann Brewing Company
- George Heekin Junior Residence
- Gibson Art Building
- Gidding Jenny Barkhardt
- Gingiss Formal Wear
- Globe Corporation
- Good Samaritan Hospital
- Goodall Company
- Grinnel Building
- Gulf Oil Company
- Gulf Oil Refinery
- Gwynne Building
- H and S Pogue Company
- H H Meyer Refrigeration Packing Company
- H H Meyers Packing Company
- H Miller
- H. & S. Pogue Deptartment Store
- H. H. Meyer Packing Company
- Hallmark Cards
- Hamilton Company Training
- Hamilton County Commissioners
- Hamilton County Court House
- Hamilton County Home
- Harkness and Cowing
- Harkness Cowing Company
- Henkel of America Inc
- Henry P. Thompson
- Heran Court Beverage and Ice Company
- Herancourt Brewing Company
- Hillshire Farm/Kahn’S
- Hilton Davis Chemical Company
- Hilton Inn
- Hospitality Motor Inn
- Hotel Gibson
- Hotel Metropole
- House of Pierre
- Hudepohl Brewing Company
- Huenefeld Company
- Hughes High School
- Huseman Snack Food Company
- Hyde Park Bank
- I T C
- Incinerator Plant
- Indian Refining Company
- Indiana Michigan Electric Company
- Ingalls Building
- Institutional Industries
- Insulation Contracting & Supply Company
- Interstate Bakeries
- Ivory Dale Plant
- Ivorydale Factory
- J L Ballinger
- J. Shillito
- J.A. Fay and Company
- J.A. Fay and Egan Company
- J.B. Schaaf
- J.H. Day Company
- Jack Herb Florist
- Jewish Hospital
- John A Stewart Electric Company
- Jones Brothers Electric Company
- Jos. J Gest
- Julian and Kokinge Company
- Jung Brewing Company
- Kahn’s & Company
- Kahns Livershop Drain
- Kahn’s Old Pork Boning Room
- Kaiser Agriculture Chemical Company
- Kao Jergens
- Keebler Biscuit Company
- Keene Corporation
- Kemmons Wilson
- Kenner Products
- King Kwik
- Kings Island Amusment Park
- Kodel Radio Corp
- Kramig Foamglass
- Krippendorf and Dittman
- Kroger Candy
- Kroger Grocery and Baking Company
- Kroger Meats
- Kuempel Company
- Lane and Bodley Company
- Laurel Homes
- Lawrenceberg Plumbing & Heating
- Levey Ink
- Lille Lee Apts
- Limbach Building
- Lincoln Elementary School
- Little Miami Plumbing
- Lodge and Davis Machine Tool Company
- Long View State Hospital
- Losantiville Country Club
- Louisville & Nashville Railroad
- Lukenheimer Company
- Lunken Airport
- Lunkenheimer Company
- M E Campbell Junior High
- M Werk Company
- M. B. Farrin Lumber Company
- Mabley & Carew
- Mariemont Library
- Maumee Chemical
- Mcalpins
- Mcdonald’S
- Mead Corporation
- Mead Paper
- Meiers Wine Cellar
- Memorial Community Center Building
- Merchants Ice and Cold Storage Company
- Mercy Franciscan Hosp. Mt. Airy
- Mercy Hospital
- Merrell National Laboratories
- Methodist Book Concern
- Methodist Publishing House
- Metro Sewer District of Cinninati
- Metropolitan Housing Authority
- Meyer Huschart Packing Company
- Miami Fort Power Plant
- Miami Fort Station
- Miami Oil and Soap Works.
- Miami Valley Lab
- Mill Creek Distilling Company
- Millcreek
- Miller Dubrul and Peters Manufacturing Company
- Mobil Chemical
- Model Pattern & Foundry
- Monsanto Chemical Company
- Mount Lookout Junior High School
- Mount St. Joseph College Delhi
- Muddy Creek Tr Plant
- Muddy Creek Waste Water
- Multi Color Type Company
- Nadler Shoe Store
- National Biscuit Company
- National Distillers and Chemical Corporation
- National Distillers Prod Corp
- National Lead Company
- National Life Insurance Company
- National Sinktop
- New General Office Building
- New Way Linen
- New York Central System
- Northgate Mall
- Northwest High School
- Norton Machinery Company
- Norwood
- Nutone Inc.
- Oak Hills Savings & Loan
- Ohio Mechanics Institute
- Ohio National Life Insurance Company
- Our Lady of Cincinnati College
- Our Lady of Mercy Hospital
- Owens Corning Fiberglas Corporation
- P & G
- P R Mitchell Company
- P R Mitchelll Company
- P. & G. Building
- Pandg Ivory Dale Plant
- Pasquale’s Pizza
- Patheon Pharmaceuticals
- Paul Stewart and Company
- Peck-Anderson and Peck Company
- Pepsi Cola Bottling Company
- Peters Cartridge Company
- Phelps Apts
- Philadelphia Apartments
- Pilot Chemical
- Pilot Piping
- Pittsburg Plate Glass Company
- Plastics Moulding Corporation
- Pleasant Run School
- Pmc Inc
- Pmc Specialties Inc.
- Poguls Tri-County Shopping Center
- Pollak Steel Company
- Post Publishing Company
- Potter’s Shoe Store
- Power Building Company
- Procter and Gamble Manufacturing Company
- Progress Lithographing
- Providence Hospital
- Provident Savings Bank and Trust Company
- Provident Tower
- Public Works Sewage Service Dept.
- Queen City Supply Company
- R A Taft Center
- R. E. Kramig & Company
- R.B. Brunemann & Sons, Incorporated
- Radel Concrete
- Radio Corporation of America
- Ramada Inn
- Rapid Railway Company
- Raymond Walters College
- Red Top Brewing Company
- Retail Clerks Union
- Rich Ladder and Manufacturing Company
- Ridgewood Steel Company
- River Pumping Station
- River Transportation
- Riverfront Stadium
- Royal Crown Cola
- Royal Plastic Manufacturing, Inc.
- Rubel Baking Company
- Rust Engr.
- Saint Bernard School
- Samdy’s Restaurant
- Samuel Hannaford and Sons, Architects
- Sanders Hall
- Sandy’s Restaurant
- Sara Lee Food & Beverage
- Sayers and Scovill Company
- Schenley Distillers Inc
- Schulte Brass
- Schweitzer Brothers
- Sears Roebuck & Company
- Senco Products
- Servomation-Tibbals
- Seventh St Tire
- Shell Oil
- Sheraton Alms Hotel
- Shillitos Department Store
- Shillitos Parking Garage
- Signode Corporation
- Sinton Hotel
- Sisters of Charity
- Snak Shack
- Snow Filtration
- Southern Ohio Bank
- Sport Products, Inc.
- Springdale Sausage Processing
- St. Paul Church
- Standard Brands
- Standard Silicate Company
- Stearns and Foster Company
- Stearns Technical Textile
- Stearns Technologies
- Steinman and Meyer Furniture Company
- Stuart’s Store
- Suburban Traction Company
- T. J. Cookson
- Tanners Creek
- Tennis Railway Equipment Company
- Terrace Hilton Hotel
- Terrace Plaza Hotel
- The Factory Power Company
- The Witt Company
- Thomas Emery Sons Inc
- Thomas T Gaff
- Tool Steel Gear & Pinton
- Traction Building
- Trailer Company of America
- Trailmobile
- Tresler Oil Tank
- Triumph Manufacturing Company
- U. S. Post Office Terminal
- U.S. Shoe Corporation
- U.S. Steel Corp
- Union Central Life Insurance Company
- Union Gas and Electric Company
- Union Heat Light and Power Company
- Union Trust Building
- United States Playing Cards
- United States Printing Company
- University of Cincinnati
- Veteran’s Affairs Hospital
- Vulcan Copper & Supply Company
- W M Powell Company
- Walden Book Store – Northgate Mall
- Walgreen Drug Store
- Walnut Hills High School
- Waltz Furnace Company
- Wcet-Tv
- Weir Frog Company
- Weiskopf Division
- Welco Industries
- Western and Southern Life Ins. Company
- Western Bowl
- Western Electric Company
- Western Hills High School
- Western Hills Pumping Sta
- Widows & Orphans Home
- William Powell
- Willson Dairy
- Winton Forest School
- Winton Hill Technical Center
- Withrow High School
- Witt Company
- Wynn Oil Company
Circleville
- American Strawboard Company
- C E Sears and Company
- Circleville High School
- Circleville Light and Power Company
- Circleville Plant Al Russkow
- Container Corporation of America
- Dupont Chemical
- E.I. Dupont De Nemours and Company
- General Electric Company
- H.M. Crites Milling Company
- Heffner Milling Company
- Jefferson Smurfit Corp Cca
- Mid -West Box Company
- Ohio Cereal Company
- Ohio Utilities Company
- Pittsburgh Plate Glass Company
- Pressing and Orr Company
- RCA
- Reynolds Near
Cleves
- Cincinnati Refinery
- Gulf Oil Corporation
- Gulf Refining Company
Cleveland
- 3M
- A.M. Higley Corp
- Abex Corporation
- Acacia Heat
- Acands, Inc.
- Ace Metal
- Acme Machinery Company
- Acme Stove & Repair
- Acoustical Department
- Addressograph-Multigraph Corporation
- Advance Drum & Barrel
- Advance Sales
- Aeronautics
- Aerospace
- Aetna Rubber Company
- Aetna Welding
- Air Injector Corporation
- Akron, Bedford and Cleveland Railway
- Albrecht Tool
- Alcoa Aluminum
- Alfred A. Pope Building
- Allen Products Company
- Allied Boiler
- Allied Engineering Company
- Allied Rubber & Mice
- Allis
- Alloys & Chemical Manufacturing.Company
- Alton Company
- Aluminum Corporation
- Aluminum Smelting & Refining Company
- Am Works
- Amac Enterprises
- Amax Specialty
- America Nut and Bolt Company
- American Ball Bearing Company
- American Box Company
- American Fork and Hoe Company
- American Greetings Inc.
- American Handling Equip.
- American Hoist
- American Monarch
- American Sheet Tin Plate Company
- American Shipbuilding Company
- American Spring Wire
- American Steel & Wire Company
- American Stove Company
- American Tank
- American Wire Mills
- Anunciation Church
- Ap Green Refr Company of Ohio
- Apex International
- Apex Smelting Company
- Apex Welding
- Arby’S
- Arco
- Armature Coil
- Armstrong Contracting & Supply
- Armstrong Cork Company
- Army Air Force
- Arrow Aluminum
- Art Galvanizing
- Arthur G.Mckee & Company
- Arwood Corporation
- Associated Sheet Metal Company
- Atlas Car
- Atlas Foundry
- Austin Powder Company
- Automobile Club
- Avon Lake Powerhouse
- Avtron Manufacturing, Inc.
- B.F. Goodrich Chemical Company
- B.F. Goodrich Company
- Babcock & Wilcox Company
- Bailey Meter Company
- Baker Rauling Company
- Baltimore and Ohio Railway Company
- Bamburger Reinthol
- Bardsons – Oliver
- Barrett Brewing Company
- Barrett Company
- Barth – Clevite
- Barth – Mcneil
- Bartlett Brothers Company
- Basic Oxygen Furnace
- Bd. of County Comm.
- Becker – Seidel Company
- Beckman Senior and Company
- Bella Isle
- Bethandale Corporation
- Bettcher
- Bingham
- Bishop & Babcock Manufacturing Company
- Blace Cleaners
- Black Drill
- Blau Knox
- Board of County Commissionerof Cuyahoga Company
- Bobby Brooks
- Bodwell Lemmon Company
- Boehm Pressed Steel Company
- Boise Cascade
- Boston & Ohio Railroad
- Bourne and Fuller Company
- Bourne-Fuller Company
- Bp
- Bradley Electric Light, Heat & Power Company
- Braeburn
- Brainard Plumbing Company
- Brice Dreber Asylum
- Britton Service Company
- Brodess Construction
- Bronson Portland Cement Company
- Brost Foundry
- Brown Hoisting Mchy Company
- Browne and Fuller Company
- Browning Company
- Browning Eng. Company
- Brush Beryllium
- Brush Electric Company
- Brush Laboratories
- Brush Wellman, Inc.
- Buckeye Electric Company
- Buckeye Insulating Company
- Buckeye Rubber Products Company
- Burdett Oxygen Company
- Burdox
- C. Schmidt and Sons Inc
- C.A. Litzler
- Cabot Titania Corporation
- Cal-Hio Chemical Plant
- Canadian Copper Company
- Canal Steam Station
- Carnegie Steel Company
- Case Institute Library and Humaniti
- Case Institute of Technology
- Case School of Applied Science
- Case Western Reserve University
- Cash Sale
- Caxtron Building Company
- Cecil Peck
- Cedar & Warrensville Center Md.
- Cedar Apartments
- Cedar Apartments
- Cedar Ave Power House
- Cedar Road Apartments
- Ceder Apartments
- Cei Powerhouse
- Celotex Corporation
- Centra Sales Company
- Central Brass
- Central Furnace
- Central National Bank
- Cerro Copper & Brass
- Certified Alloys
- Chafer and Becher
- Champion Machine & Forging
- Chandler Price Company
- Chase Brass & Copper Company
- Chemical Products Plant
- Chemical Products Works
- Chemical Rubber Company
- Chevrolet
- Chevy Plant-General Motors
- Chicago , Indiana and Southern Railroad Company
- Church of Christ Scientist
- Cincinnati and Hamilton Electric Street Railway Company
- City Asbestos Company
- City Hospital
- City of Cleveland – Ridge Road Incinerator
- City of Cleveland – Southerly Sewage Disposal Plant
- City of Cleveland Board of Public Service
- City of Cleveland Div Ave Pumping Sta
- City of Cleveland Fairmount Pumping Station
- City of Cleveland Water Works Kirkland Street Pumping Station
- City of Cleveland, Department of Public Utilities, Div Light and Power
- Clark & Greater Cleve Garden Center
- Clark & J&L Steel
- Clark Asbestos Company
- Clark Equipment Company
- Clev. Welding and Manufacturing Company
- Cleve Bearing Prod
- Cleve Cap Screw Company
- Cleveland & Sandusky Brewing Corporation
- Cleveland Akron Bag Company
- Cleveland and Elyria Electric Railway Company
- Cleveland Arcade Company
- Cleveland Arm H
- Cleveland Armature
- Cleveland Bakery
- Cleveland Berea Elyria and Oberlin Railway
- Cleveland Board of Education
- Cleveland Builders Supply Company
- Cleveland Cap Screw Company
- Cleveland City Cable Railway Company
- Cleveland City Forge and Iron Company
- Cleveland City Railway Company
- Cleveland Cliffs Iron Company
- Cleveland Clinic
- Cleveland Clinic Foundation
- Cleveland Clinic Hospital
- Cleveland Diesel Engine
- Cleveland Electric Illuminating Company
- Cleveland Electric Lt Company
- Cleveland Electric Railway Company
- Cleveland Electro Alloys
- Cleveland Electro Metals
- Cleveland Electrometals
- Cleveland Elyria Electric Railway Company
- Cleveland Energy Resource
- Cleveland Faucet Company
- Cleveland Foundry Company
- Cleveland Frog and Crossing Company
- Cleveland Furnace Company
- Cleveland General Electric Company
- Cleveland General Hospital
- Cleveland Graphite Bronze Company
- Cleveland Hardware Company
- Cleveland Hippodroma Company
- Cleveland Hopkins Airport
- Cleveland Ice and Refigerating Company
- Cleveland Illuminating Company
- Cleveland Lake Road Generating Station
- Cleveland Laundry Company
- Cleveland Medical Center
- Cleveland Metal Abrasive
- Cleveland Metal Products Company
- Cleveland Metro General Hospital
- Cleveland Metropolitan General Hospital
- Cleveland Metropolitan Housing Authority
- Cleveland Milling Company
- Cleveland Mine
- Cleveland Museum of Art
- Cleveland Oak Belt
- Cleveland Painsville and Eastern Railroad Company
- Cleveland Pneumatic Tool
- Cleveland Precision
- Cleveland Provision Company
- Cleveland Public Power
- Cleveland Railway Company
- Cleveland Regional Treatment Center
- Cleveland Rubber Corporation Company
- Cleveland Shopping News Company
- Cleveland Southwestern and Columbus Ty Company
- Cleveland Stamping and Tool Company
- Cleveland State Hospital
- Cleveland State University
- Cleveland Thermal Energy
- Cleveland Tranist Drill Company
- Cleveland Trust Company Building
- Cleveland Twist Drill Company
- Cleveland Union Terminals
- Cleveland Water Condition
- Cleveland Water Works
- Cleveland Wire & Spring Company
- Cleveland Wire Plant
- Cleveland Works
- Cleveland Worsted Mills Company
- Cleveland, Painesville, and Ashtabula Railroad
- Clevite Corporation
- Clevite Engine
- Clevite Research Center
- Club Monarch
- Club Products
- Coit Road Plant
- Columbia Axle Company
- Columbia Ice Company
- Comm Bookbinding Company
- Commercial Forging Company
- Commercial Milling Company
- Cons Enginiens
- Consol. Iron
- Cont. Bakeries
- Cooke Greenhouse
- Copper Corner
- Copperly Corporation
- Corrigan Mckinney and Company
- Corrigan-Mckenney Steel Company
- Cp Wright & Company At St. Ann’s Hospital
- Crescent Works
- Crown Rubber Stamp
- Crucible Steel
- Custom Machine, Inc.
- Cuyahoga Greenhouse
- Cuyahoga Light Company
- Cuyahoga Soap Company
- Cuyahoga Valley Railway
- Cuyahoga Works
- Dairy Delivery Company
- Dairymens Milk Company
- Dangler Stove and Manufacturing Company
- Darling and Company
- Davis Bakery
- Davis Drywall & Insulation
- Deluxe Check Printers
- Department of Public Welfare State of Ohio
- Department Public Health and Welfare Div of City Hospital
- Dewstoe Brainard Company
- Diamond Alkali Company
- Diamond Fabricator
- Diamond Shamrock Chemical
- Diebolt Brewing Company
- Div Ave. Pumping Station
- Dobeckmun Company
- Dow Chemical Company
- Dr. Hansen Clinic Building
- Dressograph Multigraph Corporation
- Drop Dies and Forging
- Drop Forge and Die
- Duffy Constructions Company
- Dunbar – Sullivan
- Dupont
- Dust Control
- Dye Company
- Dyer Company
- Dyson Joseph & Sons Inc
- E I Du Pont De Nemours
- E. H. Dyer and Company
- E. I. Dupont De Nemours & Company
- E. Kitzel & Sons
- E.F. Donleys Sons, Incorporated
- E.I. Dupont De Nemours and Company
- Eagle Ceramics
- East Ohio Gas Company
- Eastlake Plant Unit 5
- Eaton Corporation
- Eaton-Yale
- Eberhard Manufacturing Company
- Edgewater Plant
- Edgewater Works
- Electric Prod.
- Electric Storage Battery Company
- Electric Weld
- Ellsworth Coal Company
- Elyria and Oberlin Electric Railway Company
- Elyria Iron and Steel Company
- Enamel Products Company
- Endecon Corporation
- Engineering Tool & Die
- Erb Nasa
- Erie Dyeing Company
- Erie Railroad
- Erie Railroad Company
- Erie View Plaza
- Erieview Corp
- Erieview Insulation
- Erieview Plaza
- Euclid & 55 Team Track
- Euclid Div.
- Eugene Cook Greehouse
- Evangelical Deaconess Hospital
- Ex-Cell-O Corp
- F E I Inc
- F. Zimmerman Company
- F.W. Paulin
- Fairmount St Pumping Station
- Fairview Park Hospital Nurses Home
- Federal Knitting Mills Company
- Federal Office Building
- Federal Reserve Bank
- Federal Steel
- Feldman Bros. Company
- Ferro Corporation
- Ferro Engineering
- Ferro Machine and Finery Company
- Ferrodyne
- Firstenergy Corporation
- Fisher Body and Casting
- Fisher Body Corporation
- Fisher Body Div Gmc
- Fomoco
- Food Services
- Ford Foundry
- Ford Motor Company
- Ford, Cleveland Foundry
- Forest City Foundry
- Forge Products
- Form-A-Tool
- Foseco Chemical Company
- Foseco, Inc.
- Foundry Equipment Company
- Frank Billings
- Frasch Process Soda Company
- Fulton Foundry
- G C Kuhlman Car Company
- G&W Industries
- G.E.
- G.S. Equipment
- Garden Center of Greater Cleveland
- Gardner Richardson Company
- Garfield High School
- Garlock – Frazee Laundry Company
- Garrett Cromwell Eng Company
- Gas Atmospheres Inc
- Ge Chemical Products Plant
- Ge Cleveland Wire Plant
- General Aluminum
- General Battery Corporation
- General Chemical Corporation
- General Chemical Div Allied Chemical and Dye
- General Dry Batteries, Inc.
- General Dry Battery
- General Electric Company
- General Motors
- General Welding Supply
- Generating Station
- Geo. Porter Heat Treat
- George Washington Company
- Glass Cote Products Div
- Glastic Corp
- Glenn Smith Company
- Gmc Chevrolet
- Gmc Diesel Engine Div
- Goodyear Building 54
- Gorman – Lavelle Corporation
- Gould, Inc.
- Grabler Manufacturing
- Grasselli Chemical Department
- Great Lakes Flour
- Greater Cleveland Garden Ctr
- Green Ball Bearing
- Ground Round
- Grover Musical
- Gulf Oil
- Gund Brewing Company
- Hal Lynn
- Halex Corporation
- Halora Corporation
- Haltenback and Stephens
- Harshaw Chemical Company
- Harshaw Fuller and Goodwin Company
- Harvey Brothers
- Hawthorn Hospital
- Hawthornden State Hospital
- Hedalloy Die
- Herron Testing Lab
- Higbee Company
- Highland View Hospital
- Hill Clutch Company
- Hillside Junior High School
- Hinckley Greenhouse
- Hinde and Dauch Paper Company
- Hines Flask Company
- Hoffman Bronze
- Hollenden Hotel
- Holsman
- Horsburgh – Scott
- Horvitz Company
- Hudgeons Products
- Hydraulic Pressed Steel Company
- Hydro-Blast Corporation
- Ideal Tire and Rubber Company
- Imperial Clevite
- Independent Ice Company
- Independent Towel Supply
- Industrial Fibre Corporation
- Industrial Ovens, Inc.
- Industrial Rayon Corp
- Indy Power/Light Cleve. Thermal Energy
- Inland Refractories Company
- Intercon Systems
- Interlake Steamship
- Internationl Salt Company
- Interstate Eng. Company
- J & D Welding
- J & L Steel Corporation
- J E Upson
- J&L Steel Corp
- J. F. Randall
- J. Kirschenbaum
- J.C. Heintz
- J.M. Wall Company
- J-D Welding
- Jim Cursey
- John C. Boehm
- John Carroll University
- John Kleri
- John T Hutchinson
- Johns Manville Product Corporation
- Johnson Company
- Johnston and Jennings Company
- Jones & Laughlin Steel Corporation
- Jones and Laughlin Steel Company
- Jordan Welding
- Joseph & Feiss Company
- Joseph Dyson and Sons
- Kaltenbach and Griess
- Kemet Corporation
- Kemet Dept Linde Company
- Kessler Company
- Kifer Tool
- Kindt – Collins
- Kirkland Ave. Pumping Station
- Kirkwood Carbon
- Klausner Cooperage Company
- Kobelco Stewart Bolling, Inc.
- Koblintz Plumbing
- Koller Bros.
- Kottler Metal
- Krochler Manufacturing. Company
- L & M Stagecraft
- L.B. Lockwood Company
- Lady of Lourdes
- Lake City Vocational School
- Lake Erie Electric
- Lake Erie Iron Company
- Lake Erie Provision Company
- Lake Erie Screw
- Lake Road Generating Station
- Lake Shore A Plant
- Lake Shore and Mich. Southern Railroad Company
- Lake Shore and Michigan Southern Railway Company
- Lake Shore Electric Railway Company
- Lake Shore Station
- Lakeside Hospital
- Lamson & Sessions Company
- Lang Body Company
- Lanly Company
- Latonia Refining Corporation
- Lau Blower Company
- Lear Siegler
- Lederer Terminal Warehouse Company
- Lees-Bradner
- Leisy Brewing Company
- Limbach Company
- Lincoln Electric
- Linde Air Products Company
- Linderme Tube
- Liquid Carbonic Corporation
- L-K Heating
- Lorain and Cleveland Railroad Company
- Ltv Corp
- Ltv Republic
- LTV Steel
- Ltv Steel Corp
- Ltv Steel Flat Rolled Company
- Ltv Steel Mill
- Lubrizol Corporation
- Lutheran Hospital
- Lutheran Medical Center
- M A Bradley
- M. A. Hanna and Company
- Magnesium Aluminum
- Mallory Battery Company
- Marietta College
- Martin-Barriss Company
- Martindale Electric Company
- Marymount Hospital
- Master Fabricators
- Master Metal
- May Company
- Mcdawel Company
- Mcdowell-Wellman Engineering Company
- Mcgean Chemical Company
- Mcmyler Manufacturing Company
- Meade Paper Company
- Mechanical Rubber Company
- Meriam Weld
- Mesta Machine Company
- Metals Applied
- Metro General Hospital
- Metro Hospital
- Metrohealth Medical Center
- Metropolitan Alloys
- Metropolitan General Hospital
- Midland Ross
- Midland Steel
- Midland Steel Products Company
- Midland-Ross Corp
- Missile Corp of America
- Mittal Steel
- Modern Tool
- Monarch Aluminum Manufacturing Company
- Monarch Electric
- Mondie Forge
- Moreland Court Apartments
- Motor Repair Manufacturing.
- Mount Sinai Hospital
- Muncie Hartford and Fort Wayne Railway
- Municipal Electric Lighting Plant
- Municipal Lighting. Plant
- Municipal Traction Company
- Muny Light Plant
- N. A. S. A.
- N.A.C.A.
- Nasa-Lewis Research Center
- National Acme Company
- National Advisory Committee
- National Artificial Silk Company
- National Brass
- National Bronze & Aluminum Company
- National Carbon Company
- National Casting
- National Chemical Company
- National Electric Lamp Association
- National Lamp Works of The General Electric Company
- National Malleable
- National Metal
- National Power & Machinery Company
- National Quality Lamp Div of General Electric Company
- National Screw and Manufacturing Company
- National Screw and Tack Company
- National Tube
- Natl Electric Lamp Company
- Nelacrest Gardens
- Nelson Finishing
- New St Anns Hospital
- New York Central Railroad
- New York Central System
- Nickel Plate R.R.
- No 1 Refinery
- Nock Fire Brick Company
- North American Manufacturing Company
- North Texas Traction Company
- Northeast Ohio Reg. Sewer
- Northern Boiler
- Nuckley Covers
- Nuclear Plating
- Num Num Foods Inc.
- Oatey Company
- Ogleybay
- Ohio Asbestos & Insul Company
- Ohio Asbestos Company
- Ohio Basking Company
- Ohio Bell Telephone Company
- Ohio Box Board Company
- Ohio Carbon
- Ohio Chemical & Manufacturing. Company
- Ohio Chemical Company
- Ohio Crankshaft
- Ohio Forge and Machine Corporation
- Ohio Forge Company
- Ohio Pipe & Supply Company, Inc.
- Ohio Public Service Company
- Ohio Sash and Door Company
- Ohio Steel Foundry Company
- Olin Mathieson
- Oper. Div
- Orange School
- Orlando Bakery
- Osborn Engr. Company
- Osborn Manufacturing.
- Oster Electric
- Oster Manufacturing Company
- Otis Steel Company
- Overseas Packing, Inc.
- P. Huberty
- Packard Garage
- Park Drop Forge Company
- Park Ohio Industries
- Parker Alliance Company
- Paulin Company
- Peerless Motor Car Company
- Peerless Packing Company
- Penn Central
- Pennsylvania Company
- Pennsylvania Railroad Company
- Pentz Design
- Peoples Packing Company
- Perfection Stove Corporation
- Perma Welding Company
- Perry Payne Company
- Pettibone Ohio
- Phillip Mango Company
- Phs St. Michaels
- Pickands Mather and Company
- Pictet Ice Company
- Pittsburgh
- Pittsburgh-Des Moines Steel Company
- Plain Dealer Publishing Company
- Plaster Process Castings
- Plechaty Company
- Plm
- Porter Steel Treating
- Potter Industries
- Precision Casting Company
- Precision Metal
- Premier Industries
- Prime Industries
- Profile Grinding
- Pull Auto Body
- R. Koons
- R.O. Apelt and Sons
- R.O. Apelt Greenhouse
- Rauch and Laug Carriage Company
- Red Seal Electric Company
- Regal Diamond Prod.
- Reliance Electric & Engineering Company
- Replublic Steel Corporation
- Republic Steelcorp
- Reserve Sheet Metal & Furnace Company
- Rex – Budkeye
- Rex Metals, Inc.
- Richards Wholesale
- Richmond Bros.
- Ridge Seal Electric Company
- Ridge Tool
- River Dock and Furnace Company
- River Furnace and Dock Company
- River Smelting Company
- Rockefeller Building
- Rocky River High School
- Ron Dewey
- Rossborough Supply
- Rud Machine Company
- Safety Clothing
- Safety Engineering
- Saint Lukes Memorial Hospital
- Sam W. Emerson Company
- Samsel Rope
- Samuel Austin and Sons Company
- Schlathen Brewing Company
- Schmeller Aluminum
- Schmeller Foundry
- Schmidt & Sons, Inc.
- Schweizer – Dipple
- Scientific Cast Producers
- Scm Chemical Glidden Corporation
- Scm Corporation
- Scocos Plumbing & Htg
- Scocos Plumbing Company – Nasa Erb Building
- Scranton Greenhouse
- Seneca Tape
- Service Systems
- Shaker Company
- Sharpsville Furnace Company
- Shartle Brothers Machine Company
- Shell Petroleum Corporation
- Sheriff Street Market and Storage Company
- Sherman-Williams Company
- Shermer-Schneider
- Sherwin-Williams Company
- Shields-Midwestern
- Sinclair Refinery
- Smith Warner, Inc.
- Smith-Ody
- Smylie Bros Company Cedar Apartments
- Society Nat’L Bank
- Solid Steel Company
- Sommerfeld Heat Treating
- Sommers Rubber
- South Bend Carton Company
- South High School
- Southerly Sewage
- Southerly Sewage Treatment Plant
- S-P Manufacturing.
- Space Comfort
- Spiral Binding
- Spohn Corp
- Spohn Htg & Vent Company
- St Judd Church
- St. Alexis Hospital
- St. Ann’s Hospital
- St. Michael’s Hospital
- St. Vincent Charity Hospital
- Standarad Oil Office & Lab
- Standard Asbestos Manufacturing & Insulating Company
- Standard Asbestos Manufacturing Company
- Standard Brewing Company
- Standard Brick Company
- Standard Oil Refinery
- Standard Oil Research
- Standard Piping
- Standard Tool Company
- Standard Welding Company
- Starr Cty Jail
- Statler Hotel
- Std Oil Company
- Std Oil Pilot Plant
- Steel Improvement & Forge Company
- Stewart Bolling Company
- Stolle Company
- Strong, Carlisle & Hammond Company
- Struthers Furnace Company
- Suburban Heating
- Suburban Power Piping
- Suncraft Products
- Superior Brass
- Superior Building
- Superior Cast
- Superior Die Casting
- Superior Industries
- Superior Metal Treating
- Swasey Company Boiler House
- Sweland Blding
- Swift and Company
- Swift Dry Cleaners
- Sylvester & Company
- Tec Lab
- Terex
- Terminal Tower
- Ternstedt Div G.M.C.
- The Cleve. Trencher Company
- The Lanly Company
- The Ody Company
- Theatrical Equipment
- Theodor Kundtz Company
- Thermoplastics
- Thompson Products, Inc.
- Thompson Ramo Products
- Thompson Ramo Wooldbridge
- Thornton Company
- Thro’ Geo. S. Rider Company
- Todd Welding Company
- Tomco Metal
- Towmotor
- Troy Laundry Company
- True Temper Corp
- Trw Valve
- Trw, Inc.
- U. S. Army Reserve Center
- U.S. Post Office
- U.S. Steel Corporation
- Union Carbide & Carbon Chemical Corporation
- Union Carbide Corporation
- Union Rolling Mill Company
- Union Salt Company
- Union Stock Yards
- Union Terminal Building
- United Salt Company
- United States Aluminum Company
- University Hospitals of Cleveland
- Upson Nut Company
- Upson Walton
- Up-To-Date Laundry Company
- Ursilene College
- Us Air Porce Heavy Press Facilities
- Us Steel
- Variety Stamping
- Variety Steel Fabricators, Inc.
- Vari-Systems
- Veterans Administration Hospital
- Victoreen Instrument
- Victory Metal
- Vistron Corp
- Vocation Guidance
- Vulcan Building
- W. Bingham Company
- W. M. Pattison Supply Company
- W.E. Plechaty
- W.H. Hanna and Company
- W.S. Tyler Company
- Wabash Smelthing
- Wagner Awning
- Waldron Firebrick & Insulation
- Walker Heat
- Walker Processing
- Warner & Swasey Company
- Warner and Swasey Company
- Wationalworks
- Wb Cowles
- Wearn Building Univ Hosp
- Webb Fabricators
- Webco
- Weideman Company
- Welded Ring
- Weldinghouse
- Wellman Company
- Wellman Engineering Company
- Wellman Leaver Engineering Company
- Wellman Seaver-Margan Company
- Wellman-Mcdowell
- Wellman-Seaver Morgan Company
- Werner G Smith
- West Ninth St. Terminal Warehouse
- Western Mineral Wool Company
- Western Reserve National Bank
- Western Reserve Tunnel
- Western Reserve University
- Westgate Mall
- Westgate Shopping Center
- Westinghouse Electric & Manufacturing
- Wheeling Lake Erie Railroad Company
- White Company
- White Motor Company
- White Sewing Machine Company
- WHK Broadcasting Studio
- Widlar Company
- Wilkoff S & Sons Company
- Willard Storage Battery Company
- William Reiss Steamship
- Winton Heat
- Winton Motor Carriage Company
- Witco Chemical
- Wm Pattison Supply Company
- Wood-Spencer Company
- World Publishing Company
- Xcleve. Museum, Nat
- Yoder Company
- Young Men’s Christian Ass’N
- Zurowski Greenhouse
Clyde
- Clyde Porcelain Steel Corporation
- Municipal Electric Light and Water Works
- Steel Buildings Company
- Whirlpool Corporation
- Whirlpool Seeger Corp
Colesville
- Aultman Health Foundation
- Canton Bearing Plant
- Canton Drop Forge
- Marathon Ashland Petroleum
- Republic Technologies
- Superior Dairy, Incorporated
- The Timken Company
Columbus
- A.C. Humko
- A.P. Green Refractory Company
- Abitec Corp
- Acands, Inc.
- Air National Guard Facilities
- Allen Refractories Company
- American Elec Power Service Corp
- American Insurance Union Building
- American Zinc Oxide
- Angel Jay L Inc
- Anheuser Busch Brewery
- Anheuser Busch Incorporated
- Ap Green Refractories Company
- Armstrong Cork Company
- Asarco, Inc.
- Asbestos Service Company
- Ashland Chemical
- Atlas Laundry-Linen Supply
- August Wagner and Sons Brewing Company
- B & T Metals
- Bartholomew City Hospital
- Battelle Memorial Institute
- Board of Public Service
- Brown Steel
- Buckeye Iron Coupler Company
- Buckeye Mal. Iron and Couple Company
- Buckeye Steel Castings Company
- Buel Gatterdam Company, Incorporated
- Bushey Cotton Company
- C.C.C. and St. L. Railway
- Candle Lite Homes Lot 23
- Capital City Products Company
- Capitol Savings and Trust Company
- Carnegie Steel Company
- Carpenters Union – Local 100
- Case Crane and Kilbourne Jacobs Company
- Central Aluminum
- Central Market St. Railway Company
- Central Union Telephone Building
- Chemical Abstract Building
- Chittenden Hotel
- Clark Grave Vault Company
- Columbus & Southern Ohio Electric Company
- Columbus Aircraft Div.
- Columbus and Iron and Steel Company
- Columbus Army Depot
- Columbus Bolt Works
- Columbus Buggy Company
- Columbus Center Building
- Columbus Central Railway Company
- Columbus Coated Fabrics
- Columbus Consolidated Street Railroad Company
- Columbus Dispatch Building
- Columbus Edison Electric Light Company
- Columbus Electric Light and Power Company
- Columbus Electric Railway Company
- Columbus General Depot
- Columbus Iron and Steel Company
- Columbus Metrol Housg Auth
- Columbus Metropolitan Housing Authority
- Columbus Oil Cloth Company
- Columbus Packing Company
- Columbus Public Service Company
- Columbus Py Power & Light Company
- Columbus Railway Power and Light Company
- Columbus Savings and Trust Company
- Columbus Sewage Pumping Station
- Columbus Shops
- Columbus Show Case Company
- Columbus St. School
- Columbus State Hospital
- Columbus State Institute
- Columbus Steel Company
- Columbus Stove
- Columbus Street Railway Company
- Columbus Union Oil Cloth Company
- Columbus Warehouse
- Columbus Woolen Manufacturing Company
- Continental Can
- D.L. All Manufacturing Company
- David Davies Packing Company
- Defense Construction Supply Center
- Defense Supply Agency
- Delphi Corporation
- Delphi Hardware Plant
- Delphi Interior Lighting
- Dresser-Ideco
- Earl E. Bright, Inc.
- Erection Shop
- F and R Lazarus and Company
- F.W. Means Company
- Federal Glass Company
- Feeble Minded Youth
- Fireproof Block Company
- Fitzpatrick and Hoepfner
- Flow A Matic
- Forrest Towel Supply Company
- Franklin Plating
- G.L. Larely Construction
- Gallery of Fine Arts
- Gas Turbine Station
- General Electric
- General Motors Corporation
- George Ingel Construction
- Georgia Pacific Corporation
- GMC
- Great Lake Coal Mining Company
- Great Southern Hotel
- Gwinn Milling Company
- Harrop Ceramic Service Company
- Hartman Building
- Hayden Plant
- Henry Holtzman and Sons Company
- Huffman Conklin Company
- Indianola Heating and Lighting Company
- Indianola Ice Company
- Indpls. Col. and Southrn Tract Company
- Industrial Furnace Supply Company
- Inland Steel
- Institution For Feeble Minded
- Jackson Pike Wastewater Treatment Plant
- Janitrol Aircraft Division
- Jeffrey Manufacturing Company
- Jf Williams Milling Company
- Jonathan Clark and Sons Company
- Jordan Mills Inc.
- Junk Yard
- Kal Kan Foods Inc
- Kal Kan Pet Care
- Kay Lee Constr Company
- Kilbourne and Jacobs Manufacturing Company
- Kroger Grocery and Baking Company
- Kroger Warehouse
- Kuempel Company
- L Hoster Brewing Company
- Lazarus & Company F & R
- Linmoor Junior High School
- Lockbourne Air Force Base
- M & R Dietetic Laboratories, Inc.
- M C Lilly Company
- M&R Dietetic
- Marion Franklin Recreation Center
- Mars Inc
- Mccracken Power House
- Mercy Hospital
- Metal Forge Company
- Mount Carmel Hospital
- Mount Vernon Railway and Lt Company
- Municipal Electric Plant
- Municipal Electric Plant
- Municipal Lighting Plant
- New York Central Railroad
- Norfolk and Western Railway Company
- North American Aviation Corporation
- North American Lead Company
- North American Rockwell Corp
- Ohio and Texas Sugar Company
- Ohio Board of Administration
- Ohio Central Railroad
- Ohio Education Association
- Ohio Fuel Gas Company
- Ohio Fuel Supply Company
- Ohio Institute For Feeble Minded Youth
- Ohio Malleable Iron
- Ohio State Penitentiary
- Ohio State University
- Ohio Transmission & Pump
- Owens-Illinois Glass Company
- P. Wayden Saddlery Hardware Company
- P.C.C. and St. L Railway
- Parsons Elementary School
- Penn Centrals Avon Yards
- Pennsylvania Railroad
- Penrod Drywall
- Peruna Drug Manufacturing Company
- Peters Dash Company
- Pickaway Power Station
- Piping Contractors
- Plibrico Inc
- Plibrico Sales & Service Company
- Public Service Company
- Riverside Hospital
- Rockwell
- Ross Laboratories
- S. A. Esswein Heating and Plumbing Company
- S. K. Resistite
- Sandover Inner City HUD
- Sanitary Plumbing Company
- Sauer Inc.
- Saunders and Esswein
- Service Products, Inc.
- Sewage Treatment Plant
- Shartle Machine Company
- Shenango
- Smith Agriculcural Chemical Company
- Solid Waste Auth Central Ohio
- Standard Chain Company
- State Office Tower
- Swift & Company
- Terstedt Div Gmc
- Timben Roller Bearing Company
- Transportation Office
- Troy Laundering Company
- United Sheet Metal Company
- W T Burdell Trustee
- Western Electric Company, Inc.
- Westinghouse Electric Corporation
- White Cross Hospital
- Wm H. Conklin Company
- Woodruff and Pausch Stone Company
- Yost and Packard
Conesville
- American Electric Power Company
- Columbus & Southern Ohio Electric Company
- Columbus Southern Power
- Conesville Power Plant
- Conesville Power Plant
- Electric General
- Ohio Power
Conneaut
- Brown Memorial Hospital
- Conneaut Die Casting
- Conneaut Electric Light Company
- Conneaut Shovel Company
- N and W Railroad
- N.K.P.- Conneaut Yard
- New York, Chicago and St. Louis Railroad Company
- Nickel Plate R.R.
- Nickel Plate Road
- Pittsburgh and Conneaut Dock Company
Coshocton
- American Art Works
- Beach Enameling Company
- Carnation Company
- Clow Corporation
- Columbus and Southern Ohio Electric Company
- Coshocton Div
- Coshocton Light and Heating Company
- Coshocton Strawpaper Company
- General Electric Company
- H. D. Beach Company
- Houston Hay Al and Sons
- Ohio Service Company
- Smurfit Stone Corp
- St. Regis Paper Company
- Standard Advertising Company
- Stone Container Corporation
- T. J. Hanley
Crestline
- P. Railroad Western Lines
- Pittsburgh Plate Glass Company
Cuyahoga Falls
- Akron Cuyahoga Falls R. I. Company
- Akron, Bedford and Cleveland Railway Company
- Camp and Thompson
- Falls Rubber Company
- H&M Metal
- Lawson Dairy Company
- Lawson Milk Company
- Marathon Tire and Rubber Company
- Northern Ohio Tract Company
Dayton
- Accro Cast Corp
- Aetna Paper Company
- Albert R. Hostetter Company
- Allied Egry Business Systems
- Andrew Plocher
- Appleton Papers, Incorporated
- Babcox & Wilcox
- Baltimore & Ohio Railroad Company
- Barney and Smith Car Company
- Beaver Remmer Plant
- Bendix Corp
- Board of Education of City of Dayton
- Board of Public Service
- Booher Insulation, Inc.
- Brownell Stoker & Combust
- Buckeye Cellulose Corporation
- Buckeye Iron and Brass Works
- Burger Chef
- C. W. Booher, Inc.
- C.W. Raymond Company
- Cargill, Inc.
- Central Branch
- Charles F. Ketterling Memorial
- Charles Sucher Packing Company
- Chrysler Corporation
- Cincinnati Soap Company
- City of Dayton Water Works Pumping Sta
- City Railway Company
- Cole-Layer Trumble Company
- Columbus and Southern Ohio Electric Company
- Complete Insulation Service Inc.
- Cross Pointe Paper
- Davis Sewing Machine Company
- Dayco Plant
- Dayton Airport – Midwest Steel Building
- Dayton and Troy Electric Company
- Dayton and Xenia Trac. Company
- Dayton Arcade Company
- Dayton Breweries Company
- Dayton Builders Supply
- Dayton Citizens Electric Company
- Dayton Electric Light Company
- Dayton Engineering Laboratories Company
- Dayton Forge & Heat Treat
- Dayton Forging
- Dayton Ice Manufacturing Cold Storage Company
- Dayton Lighting Company
- Dayton Malleable Company
- Dayton Masonic Temple
- Dayton Mental Health Center
- Dayton Metal Products Company
- Dayton Power & Light Company
- Dayton Press, Inc
- Dayton Rubber Manufacturing Company
- Dayton Signal Depot
- Dayton State Hospital
- Dayton Steam Plant
- Dayton Tire & Rubber Company
- Dayton Union Railway Company
- Dayton Walther Corp
- Dayton Wright Airplane Company
- Delco Manufacturing
- Delco Moraine
- Delco Products
- Delphi Auto Systems Corporation
- Delphi Automotive System
- Delphi Chassis Systems
- Domestic Engineering Building Company
- Doty Manufacturing Company
- Durion Company, Inc
- Durst Milling Company
- Emerson School
- Everbest Drywall
- Excelsior Laundry Company
- Frank Hill Smith
- Frigidaire Division
- G.H.R. Foundry
- Garland-Haswell-Reutschler Foundry Company
- General Motors Corporation
- General Motors Island Manufacturing
- Globe Foundry
- Gm Delphi Chassis
- Gm/Inland Manufacturing
- Good Samaritan Hospital
- H.J. Osterfield Company
- Harrison Radiator
- Hewitt Soap Company
- Holland Bread Company
- Howard Paper Mills
- Hughes-Bechtol Incorporated
- Inland Manufacturing Company
- International Paper Company
- J.M. Stuart Station
- J.P. Wolf
- James C. Oren
- Kelso Wagner Company
- Kettering Medical Center
- Kroger Grocery & Baking Company
- Lakewood Apartments
- Longworth Station
- Lowe Brothers Paint Factory
- M.J. Gibbons Supply Company
- Master Electric Company
- Master Tire and Rubber Company
- Mccall Printing
- Mccook Field Storm Pump Station
- Mead Paper Company
- Meadowdale School
- Miami Papers Company
- Miami Valley Hospital
- Moraine Products Div Gmc
- Municipal Airport
- National Cash Register Company
- National Home For Disabled Volunteer Soldiers
- Ncr Corporation
- Oakwood St. Railway Company
- Ohio Wesleyan University
- Peckham Coal and Ice Company
- Pentair
- Peoples Railway Company
- Pinneo and Daniels Company
- Platt Iron Works
- Power & Light Company
- Premier Health Partners
- Premier Rubber Company
- Pressed Brick Company
- Protective Treatment Inc
- Recording and Computing Machine Company
- Reynolds and Reynolds Company
- Rike-Kumler Company
- Riverdale Station
- Schantz and Schwind Brewing Company
- Sisters of Charity Good Samaritain Hospital
- Sonic Wright Patterson Afb
- Steele High School
- Stillwell-Bierce and Smtih Vaile Company
- Stivers Manual Training High School
- Stoddard Manufacturing Company
- Sucher Packing Company
- Tait Power Plant/Dp&L
- United Brethren Public Company
- United States Army Engineers
- University of Dayton
- Wehner Brewing Company
- Wildcraft Products
- William Combs Construction
- Wm Focke’s Sons Company
- Wright Construction
- Wright Field
- Wright Patterson Air Force Base
- Wright State Campus
- Wright‐Patterson Airforce Base
- Y & S Tool
- Y. M. C. A. Building
- Ymca Hotel
Defiance
- American Louisiana Pipe Line Company
- Central Foundry
- Defiance Box Company
- Defiance Light and Power Company
- Defiance Milk Products Company
- Electrolite Corp
- General Motors Foundry
- Johns – Manville
- Lectrolite Corp
- S K Wayne Tool Company
- Zeller Corp
Delaware
- Climax Tire and Rubber Company
- Delaware and Magnetic Spgs. Railway Company
- Glass-Edsell Paper Company
- Ohio Wesleyan University
- Rainbow Tire and Rubber Company
- Randall and Edsell
- Southern Ohio Electric
Dilles Bottom
- Dilles Bottom Station
- Ohio Edison Company
- Ohio River Power, Inc.
- Toledo Edison Company
Dover
- American Cancer Society
- Dover Electric Light and Power
- Dover Light & Power Plant
- Dover Manufacturing Company
- Dover Municipal Light Plant
- Dover Works
- General Electric
- Greer Steel Company
- La Belle Works
- Municipal Light and Power Plant
- Reeves Manufacturing Company
- Shenango Inc.
East Cleveland
- Cleveland Automobile Company
- General Electric Company
- Glenn L. Martin Company
- Huron Road Hospital
East Liverpool
- B and W Company
- Beaver County Light Company
- East Liverpool Traction and Light Company
- Mason Color & Chemical
- Milligan Hardware
- Tri State Railway and Electric Company
- United Power Company
- Webb Corp
Eastlake
- Cleveland Electric Illuminating Company
- Eastlake Station
- Longfellow School
- Myott Industries
- Penn – Virginia Material
- Sawyer Research Products, Inc.
- Sawyers Research Prod
- Skrl Die Casting Inc.
Elyria
- Abex Company Electro
- Abex Corporation
- Abex Engineering
- American Brake Shoe Company
- American Radiator and Standard Sanitary Corp
- Bendix-Westinghouse Company
- Brown Fin Tube Company
- Brown Fintube
- Cleveland and South Western Tractor Company
- Cleveland Berea Elyria and Oberlin Railway
- Cleveland Elyria and Westrn Railway
- Cleveland Southwestern and Columbus Railway Company
- Concrete Mason
- Dean Electric Company
- Electro – Alloys Division
- Elyria and Oberlin Electric Railway Company
- Elyria Board of Education
- Elyria Canning Company
- Elyria City Board of Education
- Elyria Foundry Company
- Elyria Gas and Electric Company
- Elyria Iron and Steel Company
- Elyria Memorial Hospital
- Empire Spring
- Emtec
- Enercon Systems, Inc.
- Ferro Corp
- Fisher Body
- Fisher Food
- Garford Manufacturing Company
- General Industries Company
- George E. Milligan Office
- Harshaw Chemical Company
- Harshaw Fuller and Goodwin Company
- Hydro-Blast Corporation
- Industrial Aluminum
- Kasper Foundry Company
- Logan Natural Gas and Fuel Company
- Lorain County Electric Company
- Ltv Republic Steel
- Mufco Industries
- Oberlin College
- Perry Fay Manufacturing Company
- Pfaudler Company
- Republic Steel Corp
- Ternstedt Division
- Timms Spring
- West River Auto
- Westinghouse Bendix
- Wheeling and Lake Erie Coal Company
- Willys-Overland Company
Euclid
- Addressograph Multigraph Corp
- Ajax Manufacturing
- Chase Brass & Copper Company
- Clark
- Cleveland Precision
- Euclid Glenville Hospital
- Euclid Sewage Plant
- Fisher Body Division of General Motors
- General Motors Corporation
- Lincoln Electric Company
- Lubrizol
- Stone & Webster
- Thompson Ramo-Woolridge, Inc
- Toroidal Winding
- Trw Euclid Powerhouse
- Trw, Inc.
Evendale
- Avci Manufacturing Corp
- Calhoun Residence Hall Plbg
- Christ Hospital
- Electric Autolite Company
- Estate of Harold C. Schott
- Formica Corporation
- Ge Evendale
- General Electric
- Holmes Hospital
- Levey Ink – Tanks
- Magnus Metals
- Owens-Corning Fiberglas Corporation
- Reading Power
- Sawbrook Steel
Fairborn
- Composite Medi‐Facility
- Divn- U S Steel Corp
- Murphy’s Roofing
- Southwestern Portl Cement Company
- U.S. Steel
- Universal Atlas Cement
- Wright-Patterson Air Force Base
Fairfield
- Air Service Command
- Butler County Vocational School
- Fairfield Air Depot Patterson Field
- Fairfield South Elementary School
- United States War Department
Fairport Harbor
- Carnegie Steel Company
- Diamond Alkali Company
- Diamond Shamrock Chemical
- Hill Hardware
- Light and Power Plant
- Penna and Lake Erie Dock Company
Findlay
- Eastman Kodak Company
- International Breweries Inc
- Krantz Brewing Company
- Marathon Oil Company
- Northern Ohio Sugar Company
- Ohio Light & Power Company
- Ohio Oil Company
- Toledo Urban and Interurban Railway Do.
- Toledo, Bowling Green and Southern Railway Company
- Whirlpool Corp
Fostoria
- Allied Chemical
- Allied Signal
- Autolite Factory
- Basic Incorporated
- Bersted Manufacturing
- Chrysler Corp
- City Heat and Light Company
- City Water Department
- Electric Autolite Company
- Field W. Swezey
- Ford Motor Company
- Fostoria Electric Light and Power Company
- Fostoria Foundry
- Harter Milling Company
- Isaac Harter Company
- National Carbon Company Inc.
- National Electric Carbon
- Standard Light and Power Company
- Toledo, Fostoria and Findlay Railway
- Union Carbide Corporation
Franklin
- Cheney Pulp & Paper Company
- Eagle Paper Company
- Franklin Board and Paper Company
- Franklin Boxboard Corporation
- Franklin Enterprises, Inc.
- Logan Long Company
- Miami Valley Coated Paper Company
- Stone Container Corp Boxboard Mills Div
- Szere Pulp and Paper Company
- Union Wax Paper and Parchment Company
Fremont
- Bingham-Herbrand Corporation
- Bleille Supply
- Century Die
- Continental Sugar Company
- Crown Rubber Company
- Dale Products
- Fremont Gas and Electric Light Company
- Fremont Progress Airport
- Great Lake Sugar Company
- H. J. Heinz Company
- Lakeshore Electric Railway Company
- Memorial Hospital
- Northern Ohio Sugar Company
- Toledo Fremont and Norwalk Electric Railway Company
- Union Carbide Corporation
Galion
- Galion Community Hospital
- Galion Lumber Company
- Glidhill Machinery
- Ny Central Rail Road Company
- Ohio Central Traction
Gallipolis
- Akzo Chemical
- Gallipolis State Hospital
- John Gavin Power Plant
- Kyger Creek Power Plant
- Ohio Asylum For Epileptics
- Ohio State Hospital For Epileptics
- Ohio Valley Electric Corp
- Phillip Sporn
- Porter Drywall
Geneva
- American Fork and Hoe Company
- Ashtabula “C” Plant
- Firstenergy Corporation
- Geneva Metal Wheel Company
- Geneve Memorial Hospital
- Memorial Hospital of Geneva
- Millenium Chemical Plant
- Scm Chemicals Plant North 2
- True Temper Corp
Gibsonburg
- Charles Pfizer & Company Inc
- Gibsonburg Lime Products Company
- Gibsonbury Lime
- National Mortar and Supply Company
Girard
- A M Byers and Company
- Benada Aluminum
- Easco Aluminum
- Girard Iron Company
- Ohio Leather Company
Grafton
- Larsen Foundry
- Larson Castings
- Larson Foundry
- Larson Steel
Granville
- Dennison University
- Dupont
- Granville Technical Center
- Owens-Corning Fiberglas Corporation
- Technical Center
- Technical Research Center
Greenville
- Basf Corporation
- Corning Glass Works
- Greenville Electric Light and Power Company
- Swift & Company
Hamilton
- Albert Bess
- American Cyanamid Company
- American Rollling Mills Company
- Armco Steel Corporation
- Asbestos & Asphalt Rfg. Company
- Baldwin – Lima – Hamilton Corp
- Beckett Paper Company
- Black and Clauson Company
- Butler County Retarded Children’s School
- Champion Coated Paper Company
- Champion International Paper Mill
- Champion Papers, Inc.
- Cheasapeake & Ohio Railroad
- Children’s Mental Hospital
- Cincinnati Brewing Company
- Cincinnati Northern Traction Company
- City of Hamilton Municipal Building
- City of Hamilton Ohio Department of Public Utilities
- City of Hamilton Water Works Department
- City Power Plant
- Eagle Coopenage Company
- Eagle Woodenware Manufacturing
- Electric Generating Station
- Fisher Body Div of G.M. Corp
- Fort Hamilton Hospital
- Gordon and Maxwell Company
- Hamilton – Otto Coke Company
- Hamilton Coke and Iron Company
- Hamilton Dept. of Public Utilities
- Hamilton Electric Dept
- Hamilton Furnace Company
- Hamilton Gas and El Company
- Hamilton I and S Company
- Hamilton Ice and Cold Storage Company
- Hamilton Milk Company
- Hamilton Stores
- Harring Hall Marvin Company
- Hoover Owens Rentschler Company
- Hughes Hospital
- Hughes Memorial Hosp
- International Paper Company
- Keystone Constn Company
- Koppers Company, Inc.
- Long and Alstalter Company
- Mercy Hospital
- Miami University
- Mosler Safe Company
- Municipal Electric Plant
- New Miami Middle School
- Niles Bement Pond Company
- Niles Tool Works Company
- Northwest High School
- Ohio Casualty Insurance Company
- Ohio Electric Railway Company
- Ringel Building
- Roosevelt Jr High School
- Shuler and Benninghofen
- Snider Preserve Company
- Steel Company of Canada
- Sterling Paper Company
- U.S. Plywood Champion Pa.
- Union Wax Paper and Parchment Company
Hannibal
- Consolidated Aluminum Corporation
- Irnet
- Mobay Chemical
- Olin Aluminum
- Olin Mathieson Chemical
- Ormet Aluminum Plant
- Ormet Corporation
- Orpet Corp
Haverhill
- Aristech Chemical
- Dow Chemical
- Dupont
- Fluor Incorporated
- Sunoco, Incorporated
Heath
- Kaiser Aluminum
- Licking County Hosp.
- Licking Memorial Hospital
- Pure Die Company
- Pure Oil Company
- Standard Register Company
Hebron
- Columbus, Buckeye, Lake and Newark Traction Company
- Indiana Columbus and Eastern Traction Company
- Ohio Electric Railway Company
- Tucker Anthony and Company
Hooven
- Gulf Oil Refinery
Hudson
- City of Cleveland Boys Farm
- Earthmoving Div.
- Euclid Division
- General Motors
- Terex
Huron
- Acands, Inc.
- Cleveland Stevedore Company
- E. I. Dupont De Nemours & Company
- Eastern States Farmers
- Huron Lime Company
- Plymer Plant, Glidden Company
- Wheeling and Lake Erie Railroad Company
Independence
- Ap Green Refractories Company
- Ap Green Services Div Bi
- L. Pitschmann
- Republic Aluminum
- Republic Steel
Ironton
- A.& P. Tea Company
- Allied Chemical
- Allied Chemical and Dye Company
- Alpha-Portland Cement
- Amcast Industrial Corporation
- Aristech Chemical Corp
- Barrett Chemical
- Barrett Division
- Belfont Iron Works Company
- Belfort Iron Works
- Boggs Industry Electric
- Buckeye Ordnance Works.
- Columbia Chemical
- Dayton Malleable Iron Company
- Eagle Iron and Steel Company
- Hendershot
- Henrite Products
- Heydon Chemical Corporation
- Holland Furnace
- Ironton Coke Corporation
- Ironton Fire Brick
- Ironton High School
- Ironton Iron
- Ironton Port Cement Company
- J.J. Foundry
- Kelly Nail and Iron Company
- Kyova Pipe
- Marting Iron and Steel Company
- Mosaic
- North American Refractories
- Ohio Ferro Alloys
- Paul Moore Contracting
- Rogers Brown Company
- Sement Solvay
- Semet Solvay Company
- Skelly Oil
- Solvay Process Company
- Superior Cement
- Union Iron and Steel Company
- Viking Glass
Ivorydale
- Baltimore & Ohio Railroad Company
- Emery Industries Inc
- Procter & Gamble Manufacturing. Company
Jackson
- Buckeye Steel Mill
- D.A.P.
- Hill Manufacturing Company
- Jackson Iron & Steel
- Jackson J and S. Company
- Mansbach Metal
- Ohio Firebrick Company
- Saunders and Esswein
Kenton
- Durez Plastics and Chemicals Inc. Div
- Hooker Electrochemical Company
- Kenton Water Works
- Occidental Chemical Company
- Occidental Petroleum Corp
- Owens Corning Fiberglas Corporation
- Oxychem
- Toledo and Ohio Central Railroad
Kent
- C. L. Gaugler Machine Company
- Heating Plant
- Highway Prod.
- Kent Produce Company
- Kent State Normal School
- Kent State University
- Lamson & Sessions Company
- Mason Tire and Rubber Company
- Theodore Roosevelt School
- Williams Brothers Company
Kettering
- Delco
- Delphi Chassis Systems
- Kettering Medical Center Joe Parks
Lancaster
- Allen Foundry & Machine
- Anchor Hocking Corporation
- Anchor Hocking Glass Corporation
- Board of Trustees Ohio Boys Industrial School
- Diamond Power Specialty Company
- Diamond Purchasing Company
- Essex Group, Inc.
- Fairfield School For Boys
- General Mills, Inc.
- Lancaster Glass Corporation
- Lancaster Jr. High School
- Ralston Purina
- Southeastern Correctional Facility
- Ymca
Lebanon
- Lebanon Boiler
- Lebanon Correctional Inst
- Lebanon Light & Power Plant
- Municipal Electric Light Plant
- Siemens
Leetonia
- Cherry Valley Iron Works
- Leetonia Steel Company
- Mckelfrey Iron Company
- Salem Iron Company
- Youngstown Ohio Railroad Company
Lexington
- Delphis Green Plant
- Essex Group Control
- Essex International
- Essex Wire
- Lexington Soy Products Company
- Mid-Ohio Sports
Lima
- Allen County Institution Power Plant
- American Gas and Electric Company
- American Straw Board Company
- Ap Green F B Company
- Ashland Oil
- B.P. Chemical
- B.P. Refinery
- Bistron Corp
- Central Concrete Supply
- Chicago Bridge & Iron Company
- Clark Equipment Company
- Clark Refining and Marketing Inc
- Clark Refining Ohio
- Dwg Cigar Factory
- Electricians Union – Local 32
- Ford Motor
- Garford Motor Truck Company
- General Dynamics
- Ineos
- Insulco, Inc.
- J.C. Penney Building
- Lima and Toledo Traction Company
- Lima Electric Railway and Light Company
- Lima Locomotive
- Lima Memorial Hospital
- Lima Packing Company
- Lima Refinery Plant
- Lima State Hospital
- Lima Supply
- Lyric & State Theatres
- Mansfield Reformatory
- Nitrogen Petrochemical Plant
- North Western Ohio Light Company
- Ohio Electric Company
- Ohio Electric Railway Company
- Ohio Industrial Insulation Company
- Ohio State Hospital
- Ohio Steel Foundry Company
- Proctor & Gamble
- Sohio Chemical Company
- South Ohio Oil Company
- Standard Oil Company
- Standard Oil Refinery
- Sun Oil Company
- Teledyne Ohio Steel
- Vistron
- W. S. Lowe and Company
- Whiting Corporation
Lockland
- Celotex Corporation
- Erving Paper Company
- Fox Paper Company
- J. H. Tangeman and Company
- Philip Carey Manufacturing Company
- Pilot Chemical
- Richardson Paper Company
- Stearns and Foster Company
- Stearns Tech. Textiles
- The Philip Carey Manufacturing Company
- Wright Aeronautic Corporation
Lorain
- Admiral King High School
- American Bridge
- American Shipbuilding Company
- American Stove Company
- Baltimore & Ohio Railroad Company
- Beach Park Power Railway Company
- Boston & Ohio Railroad
- Burns Incorportion
- Cambria
- Carlson Fabricating & Welding
- City Water Department
- Clark Asbestos Company
- Cleveland Shipbuilding
- Cromwell Steel Company
- Darlson Fabrication & Welding Company
- E G Grace
- East Finishing Bay and Maintenance
- Edgewater Station
- Ferroslag
- First Energy
- Ford Foundry
- Ford Lorain Assembly Plant
- Ford Motor Company
- Formerly National Stove Company
- George E. Milligan
- Hatfield Electric
- Henkes Auto Electric
- Ishpeming
- J Burton Ayers
- Kohlmeyer
- Lackawanna
- Lake Erie Electric
- Lake Shore Electric Railway Company
- Leonard C Hanna
- Lorain and Cleveland Railroad Company
- Lorain Community Hospital
- Lorain County Electric Company
- Lorain County Hosp
- Lorain Refractories
- Lorain Shipyards
- Lorain St Railway Company
- Lorain Steel Company
- Lorain Street Railway Company
- Lorain Treatment Plant
- Loraine Shipbuilding Company
- Ltv Republic Steel
- National Stove Company Div
- National Tube Company
- National Tube Steel Mill
- Ohio Edison Company
- Ohio Public Service Company
- Ohio Service
- Otto Construction Company
- Peter White
- Republic Steel Corporation
- Robert R. Wallace
- S B Way
- Sewell Avery
- Spun Steel Div
- St. Joseph Hospital
- Standard Oil
- Tanker Transway
- Thew Automatic Shovel Company
- Thomas Wilson
- Turbo Blower & Steam Generating Fac
- U S Steel Corp
- U S Steel Tube
- United States Steel Corporation
- West 40Th Street School
- Whittier Junior High School
- Wilfred Sykes
Louisville
- Courier Journal
- Electric Melting Service
- G.E.
- Jones & Laughlin Steel Corporation
- Ltv Steel
- Pennsylvania Ohio Electric Company
- Sharon Steel
Lowellville
- Mahoning and Shenago Railway Light Company
- Ohio Iron and Steel Company
- Pennsylvania Ohio Electric Company
- Republic Railway and Light Company
- Sharon Steel Corp
- Youngstown Iron and Steel Company
Macedonia
- Chemidyne Corporation
- Consolidated Gas Company
- Hawthorden States Hospital
- Hawthornden State Hospital
- Lufran Company
Mansfield
- Armco Steel
- Aultman and Taylor Machinery Company
- Barnes Manufacturing Company
- Board of Education
- Board of Public Service
- Browning Manufacturing Company
- Burdett
- Charles Hoffman Company
- Citizens Electric Railway Light and Power Company
- Clark
- Cleveland Grain Company
- Crawford Taylor, Branch of United States Baking Company
- Cyclops Corp Empire Reev
- Department of Public Welfare, State of Ohio
- Elyria Machine Company
- Empire Detroit Steel Division
- Empire District Electric
- Empire Reeves New Building
- Empire Reeves Steel Corporation
- Empire-Detroit
- Essex International
- Essex Wire
- Fisher Body Div Gmc
- General Motors Corporation
- Globe Steel Abrasive
- Gorman Rupp Company
- Hartman Electrical Manufacturing Company
- Hughes and Keenan
- Ingersol-Humphries
- J.M. Cousins
- Mansfield Electric Light and Power Company
- Mansfield Electric Railway Light and Power Company
- Mansfield General Hospital
- Mansfield Hospital
- Mansfield Lahm Airport
- Mansfield Metal Fabricating, Inc.
- Mansfield Metal Treatment
- Mansfield Municipal Airport
- Mansfield O High School
- Mansfield Pattern Works.
- Mansfield Products
- Mansfield Railway and Light Company
- Mansfield Reformatory
- Mansfield Sheet and Tin Plate Company
- Mansfield Tire and Rubber Company
- Mansfield Water Works
- Moes Acoustical Inc.
- Nat. Sheet Steel Company
- National Biscuit Company
- Ohio Brass Company
- Ohio State Reformatory
- Pr Machine Works
- Richland Brick
- Richland Steel Company
- Roberts Insulation
- Roderick Lean Manufacturing Company
- Sheet Metal Dept
- Tappan Stove Company
- Us Alum. Corporation
- W.A. Kearns Packing Company
- Weiss Industries
- Westinghouse Electric Products Company
Manchester
- Dayton Power & Light
- Hughes Bechtol Incorporated
- Killen Generating Station
- Manchester Power Station
- Narco
- Stuart Station
Maple Heights
- Aluminum Smelting
- Certified Alloys
- Lear Siegler
- Magnetics Interning
Marietta
- A & I Company
- Allied Service
- American Cynamid
- American Electric & Power Company
- American Marietta Company
- American Municipal Power Gorsuch Station
- American Municipal Power Gravel Bank Power Plant
- American Municipal Power Ohio, Inc.
- American Viscose Corporation
- B F Goodrich Company
- Bakelite Company
- Byerly Asphalt
- Dayton Rubber Company
- Dravo
- Dupont
- Electro Metallurgical Company
- Electrometallurgical Division
- Elkem Metals
- G. E. Hull
- Gravel Bank Powerhouse
- Kordex Company
- Marietta College
- Marietta Shipyard
- Mar-Par Insulating Company
- Mining & Metals Div
- Monougahella Valley Tractior Company
- Ohio Power Company
- Parkersburg Marietta and Interurban Railway
- Remington Rand
- Richard Gorsuch Station
- Rjf International Corporation
- Safe Cabinet Company
- Shell Chemical
- Union Carbide & Carbon Chemical Corporation
- Union Carbide Metals Company
- United Carbide Chemical & Plastic
Marion
- American Malleable Cast
- American Steel
- Armco Steel
- Baker Wood Preserving Company
- Bf Goodrich Company
- Columbus Delaware and Marion Electric Company
- Fairfield Engineering Company
- Great Lakes Carbon
- Hinklin Awning Company
- Hornell Ice and Cold Storage Company
- Marion Brick
- Marion Correctional Institute
- Marion Electric Light and Power Company
- Marion General Hospital
- Marion Power Shovel
- Marion Railway Ltd Power Company
- Marion Reserve Power Company
- Marion Shovel
- Marion Steel Company
- Ohio Edison Company
- Ohio Public Service Company
- Ohio State Training School
- Pollak Steel
- Quarter Oats Company
- Scioto Ordnance Plant
Martins Ferry
- American Sheet and Tin Plate Company
- Beans Ferry
- Belmont Brewing Company
- Loughlin Nail Company
- Martins Ferry Municipal Light Plant
- Martins Ferry Water Works
- Riverside Bridge Company
- Severstal Wheeling, Incorporated
- Wheeling Corrugating Works
- Wheeling Steel Corp
- Wheeling-Pittsburg Steel
Massillon
- Arbuckle Ryan Company
- Bethlehem Steel
- Buckeye Cereal Company
- Canton Drop Forging & Manufacturing. Company
- Central Furnace Company
- Central Steel Company
- Griscom Russell Company
- Ltv Republic Steel
- Ltv Sheet and Tube
- Ltv Steel
- Massillon Electric and Gas Company
- Massillon Gas and Electric Company
- Massillon Rolling Mill Company
- Massillon State Hospital
- Ohio Tar & Asphalt
- Peerless Drawn Steel Company
- Republic Engineered Steels
- Republic Steel Corporation
- Republic Technologies
- Russell and Company
- Russell Eng. Company
- Superior’s Brand Meats, Inc.
- Timken Company
- Tyson Roller Bearing Corporation
- W.H. Davey
- Warnick and Justus
Masury
- General American Transportation Corporation
- Kanigen Plant
- Sharon Steel Corporation
- U.S. Steel
Maumee
- Eagle Box Board and Paper Company
- Jackson Elementary School
- Lincolnshire Elementary School
- Monac Elementary School
McDonald
- McDonald Steel
Medina
- Arbuckle Ryan Company
- Bethlehem Steel
- Buckeye Cereal Company
- Canton Drop Forging & Manufacturing. Company
- Central Furnace Company
- Central Steel Company
- Griscom Russell Company
- Ltv Republic Steel
- Ltv Sheet and Tube
- Ltv Steel
- Massillon Electric and Gas Company
- Massillon Gas and Electric Company
- Massillon Rolling Mill Company
- Massillon State Hospital
- Ohio Tar & Asphalt
- Peerless Drawn Steel Company
- Republic Engineered Steels
- Republic Steel Corporation
- Republic Technologies
- Russell and Company
- Russell Eng. Company
- Superior’s Brand Meats, Inc.
- Timken Company
- Tyson Roller Bearing Corporation
- W.H. Davey
- Warnick and Justus
Mentor
- E.C. Zukowski
- Lincoln Electric
- Lintern Corporation
- May Company
- Mentor High School
- Osborn Brothers
- Towmotor Corporation
- Tyler Manufacturing
Miamisburg
- Combustion Engineering
- Dayton Power & Light Company
- Hutchins Power Plant
- Interstate Folding Box Board Company
- J.C. Groendyke Company
- Miamisburg Box Board
- Miamisburg High School
- Miamisburg Paper Company
- Miamisburg Water and Light Plant
- Miamisburg Water Works
- Monsanto-Mound Plant
- Municipal Power Plant
- Sycamore Medical Center
- Tait Power Plant
Middleton
- American Rolling Mill Company
- Armco Steel Corporation
- Jefferson Smurfit Corporation
- Palmer Milling Company
- Sorg Paper Company
Middletown
- Advance Bag Company
- Aeronca Incorporated
- Aeronica Manufacturing
- Ak Steel Corp
- Altivity Packaging
- Am Tobacco Company
- American Coating Mills
- American Fiberboard
- American Rolling Mill Company
- Armco Steel Corporation
- Bay West
- Cincinnati and Hamilton E.L. Railway
- Colin Gardner Paper Company
- Crystal Tissue Company
- Department of Highways
- East Works
- Edison E Ill’G Company
- Envirotech Systems Inc
- Fabricating Div Armco Steel Company
- Gardner Board & Carton
- Gardner Paper Board Company
- Home Telephone Company
- Jefferson – Smurfit Corp
- Krauth and Benninghofen
- Linde Air Products Company
- M J Gibbons Supply of Middletown
- Middletown Development & Supply Company
- Middletown Gas and Electric Company
- Middletown Hospital Assoc
- Middletown Machine Company
- Middletown Paper
- Middletown Sand
- Middletown Works
- Mosinee Paper Company
- National Box Board Company
- Ohio Edison Electric Installation Company
- Ohio Paper Bag Company
- P J Sorg Company
- P. Lorillard Company
- P.J. Sorg Branch
- Parent Paper Company
- Paul A. Sorg Paper Company
- Prairie States Paper Company
- Sara Paper Company
- Shartle Brothers Machine Company
- Smurfit Stone Corporation
- Sorg Paper Company
- Sorg Paper Mosinee Paper
- Sorg Pulp Company
- Sorp Paper
- Sorq Pulp Company Ltd
- Steel Making Area Basic Oxygen Shop
- Tyhis Gardner Paper and Manufacturing Company
- Tytus Paper Company
- Vaccuum Degassing
- W. B. Oglesby Paper Company
- Wardlow Thomas and Company
- Wausaw Mosinee
- Wilson and Mcgallay Tobacco Company
- Wrenn Paper Company
Mingo Junction
- Carnegie Steel Company
- Hatcher Brothers Construction
- Hydrocarbon Research, Inc.
- Junction Iron and Steel Company
- National Steel Company
- P. Railroad Western Lines
- Wheeling Pittsburgh Steel South Plant
- Wheeling Steel Corporation
- Wheeling-Pittsburg Steel
Montpelier
- Minnesota Mining & Manufacturing. Company
- Municipal Water and Light Company
- Richmond Machine Company
Moraine
- Frigidaire Corporation
- General Motors Delco Air Div
- Harrison Radiator
- Stauffer Chemical
Moscow
- Cincinnati Gas and Electric Company
- Columbus and Southern Ohio Electric
- W.H. Zimmer Station
- Zimmer Generating Station
Mount Vernon
- C and G Cooper Company
- C and S Cooper Company
- Chattanooga Glass Company
- Cooper Bessemer
- Cooper Energy Serv
- Kelsey-Hayes
- Mount Vernon Railway and Light Company
- Pittsburgh Plate Glass
- Shellmar Products Company
- Stone Container Corp
Napoleon
- Brighton Mushroom Farm
- Campbell Soup Company
- City of Napoleon Municipal Water & Electric
- Freyn Brothers, Inc.
- Joseph Campbell Company
- Lippincott Company
- Loudon Bowman Div
- Municipal Electric Plant
- Napoleon Power & Light
- Napoleon Water Works and Electric Light Company
- Standard Brands Incoporated
New Boston
- A E Anderson
- Detroit Steel Mill
- Empire Detroit Steel
- George O’Neil New Boston Coke Corporation
- New Boston Coke George O’Neil
- Portsmouth St. Railroad and Light Company
- Portsmouth Works
New Philadelphia
- American Sheet and Tin Plate Company
- Burdett
- Cross Creek Coal Company
- Endress Florist
- Joy Manufacturing
- New Philadelphia School
- Ohio Service Company
- Penn-Ohio Coal Company
- Reeves Coal Company
- Timken Bearing
- Water Works
New Richmond
- A E Anderson
- Beckford Plant
- Beckjord Power Plant
- Cincinnati Gas & Electric Company
- New Richmond School
- Oberle Jordre Company
- Walter C Beckjord Station
Newark
- A I Research
- American Bottle Company
- B and O Rr Company
- Buckeye Rolling Mill Company
- Burke Golf Company
- City Water Department
- Consumers Brewing Company
- Dupont
- James E Thomas
- Jewett Car Go.
- Kaiser Aluminum & Chemical Corp
- Kaiser Steel
- Lesavoy Industries
- Licking County Health Sysrear Press Room
- Licking County Memorial Hospital
- Licking Light and Power Company
- Licking Memorial Hospital
- Marble Plant
- Newark City Schools
- Newark Extusion
- Newark Galvanizing Company
- Newark Stove Company
- Ohio Light and Power Company
- Owens Corning Fiberglass Corporation
- Pacific Industrial Furnace Company
- Pharis Tire and Rubber Company
- Pure Oil Company
- Reynolds Metals Company
- Rockwell Standard Corp
- Waterworks
- Wherle Company
- Wm Hamilton Sons Car Company
Newburgh
- American Steel and Wire Company
- Cleveland Worsted Mills Company
- National Chemical Company
- Union Rolling Mill Company
Niles
- Alexco Inc.
- Aluminum Billets Inc
- America Sheet Steel Company
- America Sheet Tin Plate Company
- American Welding & Manufacturing. Company
- Deforest Sheet and Tin Plate Company
- Easco Aluminum
- Empire Iron and Steel Company
- Engle Air Craft Company
- Falcon Iron and Nail Company
- General Electric
- Grasselli Chemical Company
- Inland Lamp Department of Gen Electric Company
- Ltv Republic Steel
- Ltv Sheet and Tube
- Mahoning Valley Railway Company
- Niles Beuresit Porch Company
- Niles Generating Plant
- Niles Glass Plant
- Niles Iron and Sheet Company
- Niles Power Plant
- Niles Rolling Mill Company
- Ohio Edison Company
- Omego Induction Serv.
- Orion Power Holdings Inc
- Reactive Metal
- Reliant Energy
- Republic Iron and Steel Company
- Republic Steel
- Taylor and Thomas
- Thomas Furnace Company
- Thomas Steel Company
North Bend
- American Bitumals Corp
- Ashland Oil, Incorporated
- Chevron Asphalt Company
- Cincinnati Gas and Electric Company
- Dupont Chemical
- Kaiser Agriculture Chemical Company
- Miami Fort Generating Station
- Miami Fort Power Station
Norwalk
- Bleille Supply
- City of Norwalk Municipal Light Plant
- Cleveland and S.W. Railway Company
- Firelands Supply
- Municipal Light & Power Plant
- Norwalk Elementary School
- Norwalk Iron Steel Company
- Norweco, Inc.
- Ohio Edison Company
- Rust Engineering Company
Norwood
- Allis Chalmers Manufacturing Company
- American Laundry Machine Company
- Ap G Fire Brick Company of Ohio
- Ault and Wilborg Company
- Bullock Works
- Chevrolet Division of General Motors Company
- Cincinnati Chemical Works
- Cincinnati Rubber Manufacturing Company
- Fisher Body Company
- General Motors Corporation
- Globe Wernicke Company
- Heekin Can Company
- L. Schreiber and Sons Company
- Mendel, Drucker Company
- Nichols Dryer Company .
- Norwood High School
- Perry & Derrick Company
- Shepherd Chemical Company
- Siemens Corp
- Siemens-Allis
- United States Playing Cards
- Victor Safe and Lock Company
- Weir Kilby Corporation
Oak Harbor
- Davis-Besse Nuclear Power Plant
- Firstenergy Nuc Operating
Oberlin
- Civil Aeronautic Administration
- Clark Asbestos Company
- Oberlin College
- Oberlin Electric and Heatin Company
- Oberlin Gas and Electric Company
- Oberlin Municipal Light Plant
- T.O. Murphy Warehouse
Orient
- Custodial Farm
- Feeble Minded Youth
- Institute For Feeble Minded
- Orient State Institute
Oregon
- B P Oil Toledo Refinery
- Bay Shore Station
- Bayshore Power Plant
- Firstenergy Corporation
- Pure Oil Company
- Standard Oil Refinery
- Sun Oil Refinery
- Sun Petroleum Company
- Sunoco Company
- Toledo Edison Company
Orrville
- City of Orrville – Municipal Power Plant
- Cottage Creamery Company
- J.M. Smucker Apple Butter Company
- Koppers Company Wood Preserving Div
- Municipal Electric Light Plant
- Municipal Power Plant
- Orrville Milk Condensing Company
- Orrville Municipal Light Plant
- Orrville Municipal Utilities
- Orrville Utilities
- Power House Board of Affairs
- Quality Casting
- Village of Board of Public Affairs
Oxford
- Miami University
- Owens Corning
- State of Ohio
- Western College Library
Painesville
- A. E. Staley Manufacturing Company
- Ae Staley Manufacturing Company
- Allied Chemical Company
- City of Painesville Municipal Light Plant
- City of Painesville Power
- Cleveland and Painesville Electric Railroad
- Cleveland Painesville and Eastern Traction Company
- Coe Manufacturing.
- Diamond Alkali Company
- Diamond Alkali Research Center
- Diamond Magnesium Plant
- Diamond Shamrock Chemical Company
- Fasson
- Glen L. Martin Company
- H.K. Furguson Company
- I R C Fibers Company
- Industrial Rayon Corporation
- Irc Fibers Company
- Lubrizol Corporation
- Midland-Ross Corporation
- Municipal Light Plant
- Municiple Electric
- National Ray Chemical Plant
- Naugatuck Chemical Company
- Orrville Municipal Light Plant
- Painesville Light Plant
- Painesville Municipal Light Plant
- Staley Manufacturing. Company
- U. S. Rubber Company, Inc.
- Uniroyal Incorporated
- Uniroyal Rubber Plant
Parma
- Arbys
- Chevrolet Motor Division
- Ford Foundry
- Holy Family Catholic Church
- Parma City School District
- Parma Senior High School
- Tinnerman Products Company
Perry
- Calhio Chemicals, Inc.
- Gas Trubine Laboratory
- Perry Nuclear Power Plant
- Pesco Products Company
- Stauffer Chemical Company
Perrysburg
- Chrysler Corp
- Ferro Corp
- Hunt Foods and Industries
- Hunt Wesson Foods
- Mansfield Plumbing
- Owens-Illinois Glass Company
- Turbojet Systems Inc
Philo
- Ohio Ferro
- Ohio Power Company
- Philo Plant
Pique
- Atlas Underwear Company
- Catalytic Inc
- City of Piqua
- Erie City Iron Works
- F Gray Company
- Favorite Stove Range Company
- Hartzell Industries, Inc.
- J A Edison
- L.C. and W.L. Iron Company
- Miami Light Heat and Power Company
- Miami Valley Railway Company
- National Linseed Oil Company
- Ohio Marble Company
- Orr Felt and Blanket Company
- Piqua Edison E Ill’G Company
- Piqua Electric Company
- Piqua Memorial Hospital
- Piqua Municipal Power Plant
- Piqua St. Railway Company
- Piqua Stone Production Company
- T Gray and Company
- Val Decker Packing Company
- Wood Shovel and Tool Company
Pomeroy
- G. Wilder Mulh Bwg. Company
- Great Lake Coal Mining Company
- Peacock Coal Company
- Pomeroy Salt Association Company
Port Clinton
- Silver Fleece Inc.
- Standard Products Company
- Toldeo Edison Company
- Toledo, Port Clinton and Lakeside Railway
Portsmouth
- A T & T Company
- Anderson Construction
- Atomic Plant
- Burgess Steel and Iron Company
- Detroit Steel Corporation
- Detroit Steel Mill
- Empire Detroit Steel
- Excelsior Shoe Company
- Garfield School
- Harbison-Walker
- Ideal Milk Company
- Laborers Union
- Linde Air Products Company
- Norfolk and Western Railway Company
- Painters Local
- Peebles Paving Brick Company
- Portsmouth Solvay Coke Company
- Portsmouth St. Railway and Light Company
- Portsmouth Steel Mill
- Selby Shoe Company
- West End Lumber
- Wheeling Steel Corporation
- Wheeling-Pittsburgh Steel Corporation
- Whitaker Glessner Company
- Williams Manufacturing Company
Ravenna
- A.C. Williams
- Centrifugal Castings
- Cleveland Worster Mills Company
- Flintkote
- G.E.
- Oak Rubber
- Orangeburg Manufacturing
- Ordnance Plant
- Ravenna Army Ammunition Plant
- Ravenna Arsenal
- Ravenna Castings
- Ravenna Ordnance Plant
Reading
- Carlisle Chemical Works
- Chemical Products Company
- City of Reading Municipal Electric Plant
- Darling Company
- Drackett Company
- Formica Press
- Municipal Electric Plant
- Neiveson-Weiskopt
- William S Merrell Company
- Worthington Turbine
- Ws Merrill Company
Relief
- American Electric Power
- American Gas and Electric Service
- Muskingum River Plant
- Muskingum Station
- Ohio Power Company
Rittman
- Ohio Boxboard Company
- Ohio Salt Company
- Packaging Corporation of America
- Rittman Paperboard
Rocky River
- Carl Meyer Corp
- Kielco
- Mike Thompson
- Rocky River High School
- Winton Heat
Rossford
- Edw Ford Plate Glass Company
- Libby Owens Ford Glass Company
- Rossford Plant Boiler Room
Saint Bernard
- Ault and Wiborg Company
- Board of Education
- Cincinnati Chemical Works
- Emery Industries, Inc
- Globe Soap Company
- Harkness and Cowing Company
- Ivory Dale Plant
- Jarecki Chemical Company
- M. Werk Soap Company
- Maumee Chemical Company
- Milcreek Valley St Railway
- Municipal Electric Light Plant
- Procter and Gamble Company
- St. Bernard High School
- Water and Light Plant
Saint Marys
- Auglaize Box Board Company
- Chestnut St. Power Plant
- City of St. Marys Municipal Power Plant
- Municipal Electric Light and Water Plant
- Ohio Municipal Power Plant
- St. Mary’s Manufacturing Company
- St. Mary’s Municipal Lights Plant
Salem
- Buckeye Engine Company
- Deming Company
- Electric Furnace
- Eljer Plumbing
- Mullin Manufacturing Corporation
- Mullins Body Corp
- Salem Furnace Plant
- Salem Water Works
- Spencer Manufacturing
- Sterling Salem Company
- Topco Company
Sandusky
- A T & T Company
- Aero Products
- Aetna Rubber Company
- Airco Plastics
- Albert Kahn Associated Architects and Enigineers Inc.
- Alum. Magnesium
- American Crayon Company
- Ap Green F B Company
- B & A Plumbing & Heating Company
- Delphi Automotive System
- Delphi Chassis Systems
- Diamond Fertilizer Company
- Erie Tire and Rubber Company
- Farrell-Cheek
- Ford Motor Company
- Gilbert Elec. Supply Company
- Hinde and Dauch Paper Company
- Hunde Dauch Paper Company
- Kyklos Bearing International
- Lyman Boat Works
- Millotte Transfer Storage Company
- Nasa Plumbrook
- New Departure Div of G.M.C.
- Ohio Public Service Company
- Ohio Road Paving Company
- Ohio Soldiers and Sailors Home
- Pennsylvania Rr Company
- Providence Hospital
- Sandusky and Interurban Electric Railway
- Sandusky Foundry & Machine Company
- Sandusky Gas and Electric Company
- Teledyne Isotopes, Nasa
- Vulcan Materials Company
- Warren Electric Manufacturing Company
Sebring
- Jim Clay Refractory
- Moloney Aluminum
- Sebring Pottery Company
Shadyside
- Burger Station
- Dillies Bottom Power Station
- Ohio Edison Company
- Ohio Public Service Company
- R.E. Burger Power Station
- W.J. Thomas
Shaker Heights
- Arkview Federal Savings & Loan Company
- Parkview Federal Savings & Loan Company
- Spohn Corp
- Tower East Office Building
Sharonville
- Brighton Corporation
- Cincinnati Bulk Mail
- Cleveland Cincinnati Chicago and St Louis Railway Company
- Corcoran Brown Lamp Div Electric Auto Lite Company
- Drackett Company
- Ford Motor Company
- Huttenbauer & Sons
- New York Central Railroad Company
- Sharonville Municipal Court
- Wr Grace and Company
Shelby
- Copperweld
- Elpower Works
- Municipal Power Plant
- Ohio Seamless Tube Company
- Parsel Army Air Forces Supply Depot
- Shelby Dept of Utilities
- Shelby Municipal Light Plant
- Wilkins Air Force Base
Solon
- Bird Electronics S
- Harshaw Chemical
- His Ministry Church
- Immerman Crafts
- Immerman Creative
- Immerman Enamels
- Kroger Bakery
- Kroger Company
- Ohio Nuclear
- Solon Veterinary Hospital
- Stouffer Foods
- Western Electric Company
- Zirconium Corporation
South Akron
- Colonial Salt Company
- Diamond Rubber Company
- Firestone Tire and Rubber Company
- Miller Rubber Company
- Wellman Seaver Morgan Company
South Columbus
- American Rolling Mill Company
- Buckeye Steel Casting Company
- Columbus Iron and Steel Company
- Keever Starch Company
South Point
- Allied Chemical Corporation
- Ashland Chemical
- Ashland Oil
- Atmospheric Nitrogen Corporation
- Buckeye Ordnance Plant
- Buckeye Ordnance Works
- Kimble Glass
- Nitrogen Div Allied Chemical and Dye Corp
- Solvay Process Company
- Sorg Paper Company
- South Ordance
- South Point Ethanol
- South Point Plant
- Uran Storage
Springfield
- American Seeding Mach. Company
- Ansted and Burk Company
- Buckeye Bumpers Div
- Buffalo Road Roller Company
- Champion Bar and Knife Company
- Champion Works
- Columbus London and Springfield Street Railway Company
- Cooper Energy Serv
- Crowell Publishing Company
- E S Kelly
- Elliott Company
- Elwood Myers Company
- Farish Roofing & Siding
- Foos Manufacturing Company
- Home Lighting Heat and Power Company
- International Harvester Company
- James Leffel and Company
- Kelly Springfield Road Roller Company
- Krell French Piano Company
- Lagonda Manufacturing Company
- Mast Crowell and Kirkpatrick
- National Supply Company
- O.S. Kelly Company
- Ohio Edison Company
- Ohio Steel Foundry Company
- P P Marsh and Company
- Perfection Laundry Company
- Rinehart Ballard and Company
- Robbins and Myers Inc
- Spike Ind.
- Springfield Light Heat and Power Company
- Springfield Manufacturing and Power Plant
- Springfield Railway Company
- Springfield Troy and Prana Intererban Rr
- Springfield Water Works
- Stoker At Wittenburg College
- Sun Corp
- Warder Bushnell and Glessner Company
- Westcott Motor Car Company
- White Superior Div White Motor Company
- Whiteley, Fassler and Kelly Company
- Wittenburg College
Steubenville
- Federal Paper Board
- Foote Mineral
- Hartje Brothers Paper Manufacturings
- J. B. Jones and Company
- Jefferson City Burial Vault Works
- Jefferson Iron Works
- Keagler Brick Company
- La Belle Iron Works
- Linde Air Products Company
- Mesta Machine Company
- North Plant
- Pope Tin Plate Company
- Steubenville Ice Company
- Steubenville Roofing & Siding
- Steubenville Traction and Light Company
- Tri State Railway and Electric Company
- Wayne Coal Company
- Weirton Steel Company Division
- Wheeling Pittsburgh Steel Corp
- Wheeling Steel Corporation
- Wheeling-Pittsburg Steel
Stratton
- Ohio Edison Company
- Sammis & Ohio Edison Power Plant
- Sammis Power Station
- W.H. Sammis Generation Station
Struthers
- Am. Sheet and Tin P. Company
- Barrett Company
- Jones and Laughlin Steel Company
- Pittsburgh Coke & Chemical Company
- Plastics and Coal Chemical Div
- Republic Rubber
- Struthers Finance Company
- Struthers Ice Company
- Struthers Iron and Steel Company
- Struthers Works
- Youngstown Manufacturing Company
- Youngstown Sheet and Tube Company
Tiffin
- American Radiator and Standard Sanitary Corp
- Edison and Illuminating Company
- General Electric Company
- Grabler Manufacturing
- Hayes Albion
- National Machinery Company
- St. Paul’s Methodist Church
- Sterling Grinding Wheel Company
- Tampa Bay Engineers
- Tiffin Edison Electrical Ill’G Company
- Tiffin State Hospital
- Ursuline College
- Webster Manufacturing Company
Toledo
- Acands, Inc.
- Acklin Stamping Company
- Acme Power Plant
- Air Nitrate Plant
- Allied Chemical & Dye Corporation
- Amc Corp Jeep Div
- America Weldless Steel Tube Company
- American Can Company
- American Mineral Spirits Company
- American Motors Corporation
- American Shipyards
- American Structural Products Company
- American Suede Shoe Company
- Angel Jay L Inc
- Ann Arbor Railroad Company
- Ap Green Refractories Company
- Arhuckle Ryan Company
- Asphalt Block Pavement Company
- Atomic Power Plant
- Autolite
- B.P. America Inc.
- BP Amoco Ohio
- B.P. Oil
- Barrett Company
- Bayshore Power Plant
- Bechtol Carney and Company
- Broadway High Service Pumping Station
- Broadway Plant
- Brush-Wellman
- Buckeye Brewing Company
- Bunting Brass and Bronze Company
- Catalytic Construction Company
- Central Ave Shops
- Central Heating Company
- Champion Spark Plug Company
- Champlain Street Plant
- Chesapeake and Ohio Railroad
- Chevrolet Plant
- Chicago and Toledo Railway Company
- Chrysler Corporation
- Citizens Lighting and Heating Company
- City Auto Stamping Company, Inc.
- City of Bryan Job
- City of Toledo Water Works
- Cleveland and Painesville Electric Railroad
- Consolidated St. Railway Company
- Continental Aviation and Engineering Company
- Dana Corporation
- Detroit & Toledo Railroad
- Doehler Jarvis Castings
- E. I. Dupont De Nemours & Company
- East Broadway Plant
- Edward Ford Plate Glass Company
- Elecric Autolite Company
- Electric Auto Lite Company
- Elmhurst School C-959
- Federal Creosoting Company
- Federal Office Building
- Fiberglass Tower
- Fluor Corp
- Ford Plate Glass Company
- Forest City Brewing Company
- Fred Christen & Sons Company
- General Electric Company
- General Mills Company
- General Motors Corporation
- General Tire & Rubber
- George O. Cromwell
- Georgia Pacific
- Glendale Plant Siding
- Goebel Brewing Company
- Gulf Oil Refinery
- Gulf Refining Company
- H. B. Milwine and Company
- Hilton Davis Chemical Company Cincinn
- Huebner Toledo Breweries Company
- Hydro-Blast Corporation
- I. D. Smead and Company
- Interlake Iron Corp
- Interlake Steel Corporation
- Isaac Harter Company
- Jarvis Division
- Jeep Plant
- John B. Shepler
- Kaighin and Hughes, Inc.
- Kaiser Jeep Corp
- Kaufman Company Larry L
- Kimball Glass Company
- Lake Erie Water Project
- Lakeshore and Mich So Railway Company
- Landers Corporation
- Larry L Kaufman Company
- Lasalle
- Libby-Owens-Ford Glass Company
- Lummus Company
- Madison Avenue Plant
- Mather Company
- Maumee Rolling Mill Company
- Midland-Ross Corporation
- Milburn Wagon Company
- Nanarre Ave. Siding
- National Casting
- National Cement Products Company
- National Malleable Castings Company
- National Milling Company
- National Superior Company
- National Union Building
- New Federal Office Building
- New York Central Railroad, Airline Junction Plant
- Nl Industries, Inc.
- Nordyke and Marmon
- Northern Refrigerating Company
- Obear Nester Glass Company – Recuperator
- Oglebey Norton
- Ohio Fuel Gas Company
- Ottawa Chemical Division
- Owens Corning Fiberglass
- Owens Illinois Glass Company
- Owens-Ford Company
- P. R. Sussman Company
- Perstorp Polyols Incorporated
- Phillips Petroleum Company
- Plibrico Sales & Services
- Port Lawrence Company
- Power Reactor Plant
- Prestatite International Corporation
- Procon, Inc.
- Pure Oil Company Refinery
- Refining Stores
- Republic Steel Corporation
- Riverside Mercy Hospital
- Rossford Ordnance Depot
- Rust Engineering Company
- Save Electric Company
- Scott High School
- Second Church of Christ Scientist
- Second National Bank Building
- Service Products, Inc.
- Sherium Metals
- Skeldon Engineering Company
- Sohio Refinery
- Spicer Manufacturing
- St. Vincent Medical Center
- St. Vincents Hospital
- Standard Oil Refinery
- Sun Oil Company Refinery
- Sun Oil Plant
- Sunoco Ohio
- Surface Combustion Corp
- Teledyne Cae
- Textile Leather Company
- Tillotson Manufacturing Company
- Toledo and Indiana Railroad
- Toledo and Western Railway
- Toledo Bee Company
- Toledo Blade
- Toledo Bolt and Nut Company
- Toledo Brewing and Malting Company
- Toledo Bridge and Crane Company
- Toledo Clinic
- Toledo Consolidated St. Railway Company
- Toledo Edison Company
- Toledo Furnace Company
- Toledo Gas Electric and Heating. Company
- Toledo Grain and Milling Company
- Toledo Heating and Lighting Company
- Toledo Hospital
- Toledo Machine Tool Company
- Toledo Marine Terminals, Inc.
- Toledo Massillon Bridge Company
- Toledo Newspaper Company
- Toledo Plant
- Toledo Post Cement Company
- Toledo Railways and Light Company
- Toledo Refinery
- Toledo Sewage Plant
- Toledo Shipbuilding Company
- Toledo Shot Div
- Toledo State Hospital
- Toledo Steel Casting Company
- Toledo Steel Tube
- Toledo Storage Ice Company
- Toledo Water Works
- Toledo, Columbus and Cincinnati Ray. Company
- Toledo, St Louis and Western Rr Company
- Transmission Division
- U S Reduction Company
- U. S. Post Office Building
- U.S. Reduction Company
- Unitcast Corporation
- Unitcast Division
- Vulcan Team Track
- Water Street Station
- Westinghouse Electric Company
- Wielys Overland Company
- Willys Motors, Inc
- Willys Overland Company
- Wiltsie Realty Company
- Woolson Spice Company
- Wright Brothers Greenhouse Company
- WSPD Radio Broadcasting Studios
Toronto
- Commonwealth and Southern Corp
- George W. Cottrell & Son
- Hartje Brothers Paper Company
- Hartje Brothers Paper Company
- Kaul Clay Company
- Keagler Brick Company
- Ohio Edison Company
- Ohio River Edison Company
- Rockwell
- Rough Power Plant
- Timet Metal Corporation of America
- Titanium Metals Corporation of America
- Toronto Paper Manufacturing Company
- Toronto Power Station
- United Constructors, Inc.
Troy
- Board of Public Service
- Braun Brothers Packing Company
- City of Troy Power Plant
- Eckert Packing Company
- Gummed Products Company
- Hobart Bros.
- Hobart Manufacturing Company
- Hobert Corp
- Huntsmen Goodson Chemical Corp
- Mckinnon Dash and Hdware Company
- Municipal Light and Power Plant
- Plant Number 1
- Premark International
- Troy Carriage Sun Shade Company
- Troy Electric Plant Department
- Troy Sunshade Company
Twinsburg
- Chrysler Corporation
- Jack Higgins
- Twinsburg Pumping Station East Ohio Gas Company
Urbana
- Fox River Paper Company
- Fox Valley Corporation
- Howard Paper Company
- Liquid Carbonic Corporation
- Neenah Paper, Incorporated
- Ohio Straw Board Company
- Urbana Light Company
- Water Works Pumping Station
Vandalia
- Aeroproducts Div Gmc
- Delphi Auto Systems Corporation
- Delphi Automotive System
- General Motors
- Vandalia Butler Board of Education
Wadsworth
- Bearfoot Sole Company Inc
- National Metal
- Ohio Injector Company
- Ohio Match Company
- Ohio Salt Company
- Wadsworth Light and Water Company
- Wadsworth Salt Company
Warren
- Ajax Management
- Allied Chemical Corporation
- American Welding & Manufacturing
- Anchor Packing
- Asbestos Service Company
- Brainard Strapping
- Bromaid Steel Company
- Commercial Intertech & Shearing
- Copperweld Steel Company
- Delphi Packard Electric System
- G.E.
- General Motors Corporation
- General Refractories
- Gm Corporation
- Grinnell Corporation
- Hetz Construction Company
- J & L
- Koppers Company, Inc.
- Liberty Steel Company
- Liberty Works
- Ltv
- Mahoningside
- Mc Myler Manufacturing Company
- Mullins Manufacturing Company
- Multi Industube Service
- National Casting Company
- Ohio Edison Company
- Ohio Public Service Company
- Packard Electric
- Paige Tube Company
- Parkard Electric Div of Gmc
- Penn Shovel Company
- Renco Group, Inc.
- Republic Aluminum
- Republic Steel Corporation
- Research Product Company
- Schaefer Equipment Company
- Severstal Warren
- Sharon Steel
- Taylor
- Thomas Steel Company
- Thomas Steel Strip Corp
- Timken Company
- Trumbell Public Services Company
- Trumbull Cliffs Furnace Company
- Trumbull Public Service Company
- Trumbull Service Company
- Trumbull Steel Company
- W.P. Gibson Shop
- Warren City Tank and Boiler Company
- Warren Consolidated
- Warren Dock
- Warren Plant
- Warren Pump & Supply
- Warren Steel
- Warren Water and Light Company
- Warren Works
- Wci Steel
- Weldon Rubber
- Welton Rubber
- Youngstown Pressed Steel Company
Waterville
- Allegheny Ludlum Steel
- Escast
- Investment Casting
- Johns Manville
- Rimer Enterprises
Wellston
- Lehigh Portland Cement Company
- Municipal Electric Power Plant
- Wellston Iron Furnace Company
- Wellston Steel and Iron Company
Wellsville
- American Sheet and Tin Plate
- P. Railroad Western Lines
- U.S. Engineers
- Water Works Trustees City of Wellsville Ohio
- Wellsville Foundry
- Wellsville Plate and Sheet Iron Company
West Carrollton
- American Envelope Company
- Appleton Papers Inc
- Cross Pointe Paper Corp
- Friend Paper Company
- G.H. Friend Paper Tablet Company
- Kimberly Clark Corp
- Miamisburg Paper Company Div
- Moraine Paper Company
- Oxford Paper Company
- West Carrolton Parchment Company
Westlake
- Automotive Equipment
- Continental Hospital
- Donn Products
- France Manufacturing.
- Sauers Corner, Inc.
- Westlake High School
Wickliffe
- Abb Automation
- Bailey Meter Company
- Best Truck Equipmt
- Cleveland Crane & Engineering Company
- E.M.D. Components
- Euclid Spring Company
- Hendershot & Smith Inc.
- Lubrizol Corporation
- Oster Manufacturing Company
- Smp Castings
- Smp Precisions
- Wickliffe Plant
Willoughby
- Akron Oxygen
- B & W
- Bescast Inc
- Bowden Manufacturing
- Cleveland Electric Illuminating Company
- Cleveland Painsville and Eastern Railway
- Correct Air Corporation
- Eastlake High School
- Fusion Inc.
- G.E.
- James Campbell Smith, Incorporated
- Kennametal Company
- Lincoln School
- Ohio Rubber Company
- South High School
- Standard Tire Company
- Thompson Products Willoughby Works
- Trw, Inc.
- Western Controls
- Willoughby High School
- Willoughby Works
Wooster
- A.K. Property Corporation
- College of Wooster
- Hercules Engines, Incorporated
- International Paper Company
- Ohio Agri Experiment Station
- Ohio Agricultural Randd Ctr
- Ohio State University
- Power House
- State of Ohio Agricultural Experiment Station
- University of Wooster
- Wooster College
- Wooster College Inn
- Wooster Municipal Building
- Wooster Water Works
Worthington
- Anheuser Busch Inc
- Arcade Building
- Asbestos Service Company
- Border Chemical
- Catawba Apartments
- Percy Middle School
- Rutherford Funeral Home
- S K Resisti Coating Company
- Worthington High School
- Worthington Methodist Church
Yorkville
- Wheeling Pittsburgh Steel
- Wheeling Steel Corp
- Wheeling-Pittsburg Steel
Youngstown
- Adams School
- Aeroquip Republic Rubber
- Allied Chemical Company
- Am Steel and Hoop Company
- American Welding
- Andrews and Hitchcock Iron Company
- Asbestos Service Company
- Barrett Company
- Bessemer Linestone Company
- Blau Power Piping Division
- Briar Hill Iron and Coal Company
- Briarhill and Campbell Works Plant
- Brier Hill Iron and Coal Company
- Brier Hill Steel Company
- Briggs Manufacturing Company
- Brown Bonnell Works
- Brown Bormell Iron Company
- Burdette Oygen
- Carlson Electric Company
- Carnegie-Illinois Steel Corporation
- Coke Plant
- Commercial Insulation Company
- Commercial Intertech & Shearing
- Commercial Piping
- Commercial Shearing & Stamping Company
- Compco Metal Products
- Conrail
- Crystal Ice and Storage Company
- Dearing & Company
- Easco
- Erie Railroad
- F.A. Pilgrim Ertusion
- Fitzsimons Company
- Floyd Booth Company
- Forum Health Holding Company
- Garry Iron and Steel Company
- General Extrusions
- General Fireproofing Company
- Gen’L Fire Proofing
- Geo. J. Renner, Jr.
- George B. Sennett
- George J Renner
- Home Insulation Company
- J&L Steel
- J. Smith’s Son’s Brew’G Company
- J.D. Fowler
- Jones and Laughlin
- Koppers Company, Inc.
- Law Knox Division & Youngstown Sheet Tube
- Lee Tire and Rubber Company
- Linde Air Products Company
- Lloyd Booth Department
- Lower Union Mills
- Ltv Sheet and Tube
- Ltv Steel
- Mahoning County Jail
- Mahoning Electric Light Company
- Mahoning Valley Iron Company
- Mahoning Valley Railway Company
- Mahoning Valley Tractor Company
- Mahoning Valley Works
- National Steel Company
- New Tod and Company
- North Side Hospital
- Northside Medical Center
- Ohio Edison Company
- Ohio Steel Company
- Ohio Steel Works and Furnace
- Ohio Works
- Penna and Mahoning Valley Railway Company
- Phoenix Electric
- Plastics and Coal Chemicals
- Princeton School
- Rajah Oil Company
- Rayen School
- Republic Aluminum
- Republic I and D Company
- Republic I and S Company
- Republic Iron and Steel Company
- Republic Rubber Company
- Republic Steel Corporation
- Republic T and D Company
- Roofing & Sheet Metal Inc
- S. Side Hospital
- Sharon Steel Hoop Company
- Sheet & Tube Office Building
- Smith Brewing Company
- Sodexho
- St Elizabeth Hospital
- Steel Door
- Superior Die
- Thomas Steel
- Todd Insulation & Remodeling
- Truscon Steel Company
- Trussed Concrete Steel Company
- U.S. Steel
- Union Iron and Steel Company
- United Engineering & Foundry Company
- United States Steel Corporation
- Upper Union Mills
- Us Steel Corp
- Vindicator Printing Company
- W.B. Pallock Company
- Wean United Engineering Inc.
- Western Conduct Manufacturing
- Western Reserve Care Center
- William Pollack Company
- Yost Construction Company
- Youngstown Airport
- Youngstown City Water Works
- Youngstown Concrete Sand and Stone Company
- Youngstown Foundry & Machine Company
- Youngstown Gas and Electric Company
- Youngstown Heating Company
- Youngstown Hospital Association North Side Hospital
- Youngstown Iron Sheet Tube Company
- Youngstown J. and S. Roofing Company
- Youngstown J. Sheet and Tube Company
- Youngstown Mahoning and Shenango Railway and Light Company
- Youngstown Manufacturing Company
- Youngstown Mazda Lamp Works
- Youngstown Municipal Company
- Youngstown Municipal Railway Company
- Youngstown Plant
- Youngstown Sheet & Tube Company
- Youngstown Steel Door
- Youngstown Steel Tank Company
- Youngstown Water Company
- Youngstown Welding & Engineering
- Yountstown Heating Company
Zanesville
- Ak Steel
- American Encaustic Tiling Company
- American Rolling Mill Company
- Armco Steel Corp
- Bethesda Hospital
- Central Silica Company
- Columbia Cement Corporation
- Ferro Corporation
- Good Samaritan Hosp.
- Mark Manufacturing Company
- Ohio Electric Railway Company
- Ohio Iron Company
- Philo Power Plant
- Pittsburgh Plate Glass Company
- Specialty Steels Division
- Water Works Constr. Company and Eastrn Tube Company
- Zanesville Railway Light and Power Company