| Board Of County Commissioners | Cleveland | OH |
| Board Of Public Affairs | Orrville | OH |
| Board Of Public Service | Troy | OH |
| Board Of Public Service | Mansfield | OH |
| Board Of Public Service | Sidney | OH |
| Board Of Public Service | Dayton | OH |
| Board Of Public Service | Columbus | OH |
| Board Of Trustees | Lancaster | OH |
| Board Of Trustees | London | OH |
| Bobby Brooks | Cleveland | OH |
| Bob Evan's Restaurant | Cincinnati | OH |
| Bodwell Lemmon | Cleveland | OH |
| Boehm Pressed Steel | Cleveland | OH |
| Boiler House | Middletown | OH |
| Boise Cascade | Cleveland | OH |
| Bolling Oven | Avon | OH |
| Booher Insulation | Dayton | OH |
| Border Chemical | Worthington | OH |
| Borg-Warner | Mansfield | OH |
| Bormot | Canton | OH |
| Boston & Ohio Railroad | Cleveland | OH |
| Boston & Ohio Railroad | Holloway | OH |
| Boston & Ohio Railroad | Lorain | OH |
| Bourne-Fuller | Cleveland | OH |
| Bowden Manufacturing | Willoughby | OH |
| Bowerston Shale | Newark | OH |
| Bowerston Shale | Hanover | OH |
| Bowling Green State University | Bowling Green | OH |
| Bow Socket | Ashtabula | OH |
| Boys Farm | Hudson | OH |
| BP Chemicals | Lima | OH |
| BP Oil | Oregon | OH |
| BP Oil | Toledo | OH |
| BP Oil | Cleveland | OH |
| BP Oil | Lima | OH |
| Bradley Electric Light, Heat & Power | Cleveland | OH |
| Braeburn | Cleveland | OH |
| Brainard Plumbing | Cleveland | OH |
| Brainard Strapping | Warren | OH |
| Brand Plastic | Canton | OH |
| Brauer Supply | Cincinnati | OH |
| Braun Brothers Packing | Troy | OH |
| Breeding Insulation | Cincinnati | OH |
| Brice Dreber Asylum | Cleveland | OH |
| Bridgeport Brass | Ashtabula | OH |
| Brier Hill Iron & Coal | Youngstown | OH |
| Briggs Manufacturing | Youngstown | OH |
| Briggs Manufacturing | Cincinnati | OH |
| Brighton | Sharonville | OH |
| Brighton | Cincinnati | OH |
