| WIWesterman INC Bremen Plant (0123000286) | Bremen | — | ◇ UNVERIFIED |
| XLXaloy, LLC | Austintown, Township of | — | ◇ UNVERIFIED |
| YHYoungstown Hard Chrome Plating & Grindin | Youngstown | — | ◇ UNVERIFIED |
| AIAdvance Industrial Manufacturing | Grove City | 20–99 | ◐ LIKELY ACTIVE |
A. J. Rose Mfg. CO. | Avon | — | ◐ LIKELY ACTIVE |
| APAlexander Pierce CORP | Akron | — | ▲ REPORTED CLOSED |
Anchor Construction Services LLC | Cleveland | — | ◐ LIKELY ACTIVE |
| BMBurton Metal Finishing INC | Columbus | — | ◐ LIKELY ACTIVE |
Dana White Machining & Welding INC | Nova | — | ◐ LIKELY ACTIVE |
Daves Legacy LLC | Dayton | — | ◐ LIKELY ACTIVE |
Enerfab Power & Industrial, LLC | Cincinnati | — | ◐ LIKELY ACTIVE |
Exact Machine CORP | Sunbury | — | ◐ LIKELY ACTIVE |
Foxlein Holdings LLC | Toledo | — | ◐ LIKELY ACTIVE |
| FEFreeman Enclosure Systems, LLC. | Batavia | 100–499 | ◐ LIKELY ACTIVE |
Kk Tool CO | Springfield | — | ◐ LIKELY ACTIVE |
| LELincoln Electric Automation Fort Loramie | Fort Loramie | 100–499 | ◐ LIKELY ACTIVE |
| MSMarik Spring, INC. | Tallmadge | 20–99 | ◐ LIKELY ACTIVE |
| MWMetal & Wire Products CO. | Salem | 20–99 | ◐ LIKELY ACTIVE |
| MMModel Machine and Precision, LLC | Moraine | — | ◐ LIKELY ACTIVE |
Potesta and Company LLC | Hudson | — | ◐ LIKELY ACTIVE |
| SESwift Engineering LLC | Liberty Township | — | ◐ LIKELY ACTIVE |
The Will-burt Company | Orrville | 100–499 | ▲ REPORTED CLOSED |
| USUnited Surface Finishing | Canton | 20–99 | ◐ LIKELY ACTIVE |
| NMNiles Manufacturing & Finishing INC (0278060693) | Niles | — | ◐ LIKELY ACTIVE |
| APAce Precision Industries | Akron | — | ◇ UNVERIFIED |
| APAkron Plating Company LLC | Akron | — | ◇ UNVERIFIED |
| BOBardons & Oliver, INC. | Solon | — | ◇ UNVERIFIED |
| DHDiamond Hard Chrome INC (1318008143) | Cleveland | — | ◇ UNVERIFIED |
| EPElectro Prime INC. | Toledo | — | ◇ UNVERIFIED |
| EREuclid Refinishing Company Dba Surftech | Austinburg | — | ◇ UNVERIFIED |
| FMFairfield Machined Products | Carroll | — | ◇ UNVERIFIED |
| HPHumtown Pattern CO | Columbiana | — | ◇ UNVERIFIED |
| KPK-b Plating INC | Cleveland | — | ◇ UNVERIFIED |
| TGThe Gent Machine CO | South Euclid | — | ◇ UNVERIFIED |
| WTW T Pettit & Sons CO | Girard | — | ◇ UNVERIFIED |
| 6C605 Clark Street | Middletown | — | ◐ LIKELY ACTIVE |
| APAccurate Plating Company | Cleveland | — | ◐ LIKELY ACTIVE |
| AGAction Group INC | Blacklick | — | ◐ LIKELY ACTIVE |
| AMAds Manufacturing Ohio LLC | Middletown | 20–99 | ◐ LIKELY ACTIVE |
| AIAdvance Industries Group LLC | Cleveland | 20–99 | ◐ LIKELY ACTIVE |
| AMAeropact Manufacturing LLC | Bowling Green | — | ◐ LIKELY ACTIVE |
| ASAfc Stamping and Production INC. | Dayton | 20–99 | ◐ LIKELY ACTIVE |
| AAirecon | Cincinnati | 20–99 | ◐ LIKELY ACTIVE |
| AMAlba Manufacturing INC | Fairfield | 20–99 | ◐ LIKELY ACTIVE |
| ATAlcon Tool Company | Akron | 20–99 | ◐ LIKELY ACTIVE |
| ATAllied Tube & Conduit Hebron OH | Hebron | 20–99 | ◐ LIKELY ACTIVE |
| ALA & L Metal Processing | Sandusky | — | ◐ LIKELY ACTIVE |
| ALA & L Metal Processing | Sandusky | — | ◐ LIKELY ACTIVE |
| AMAlta Mira CORP | Spencer | — | ◐ LIKELY ACTIVE |
| ABAltenloh, Brinck & Co., U.S., Inc. | Bryan | 100–499 | ◐ LIKELY ACTIVE |