| Company | Category | Area | Address | Web | E-mail | Contact person |
| OHIO FIRE SPRINKLER | Fire Protection Equipment & Su | Ohio | 2012 HENRY AVE, MIDDLETOWN, Butler, Ohio, 45042-2226, USA |
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| OHIO FIREWORKS MFG DISPLAY CO | Ret Fireworks | Ohio | PO BOX 368, ST CLAIRSVLE, Belmont, Ohio, 43950-0368, USA |
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Delthine Thresutti |
| OHIO FIREWORKS MFG DISPLAY CO | Ret Fireworks | Ohio | PO BOX 368, ST CLAIRSVLE, Belmont, Ohio, 43950-0368, USA |
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Delthine Thresutti |
| OHIO FISH & GAME FINDER MAG | Periodicals-publishing/printin | Ohio | PO BOX 127, CLYDE, Sandusky, Ohio, 43410-0127, USA |
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David Manley |
| OHIO FISHERMAN PUB CO | Typesetting (Manufacturers) | Ohio | 921 EASTWIND DR STE 101, WESTERVILLE, Franklin, Ohio, 43081-5302, USA |
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| OHIO FISHWRAPPER | Newspapers (Publishers) | Ohio | 115 W 2ND ST, PORT CLINTON, Ottawa, Ohio, 43452-1012, USA |
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Kay Kohler |
| OHIO FLAME HARDENING CO | Heat Treating Metal (Manufactu | Ohio | 637 N WAYNE AVE, CINCINNATI, Hamilton, Ohio, 45215-2250, USA |
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Don Hellweg |
| OHIO FLAME HARDENING CO | Heat Treating Metal (Manufactu | Ohio | 637 N WAYNE AVE, CINCINNATI, Hamilton, Ohio, 45215-2250, USA |
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Don Hellweg |
| OHIO FLAME HARDENING COMPANY | Brazing & Heat Treating Of Ste | Ohio | 4110 COLUMBIA RD, LEBANON, Warren, Ohio, 45036-9588, USA |
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Robert Bokon |
| OHIO FLAME HARDENING COMPANY | Brazing & Heat Treating Of Ste | Ohio | 4110 COLUMBIA RD, LEBANON, Warren, Ohio, 45036-9588, USA |
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Robert Bokon |
