| AUArcelormittal USA | Newburgh Heights | OH | Primary Metal Manufacturing331111 | — | ◇ UNVERIFIED |
| BGB.w. Grinding CO. | Lyons | OH | Primary Metal Manufacturing331511 | 20-99 | ◇ UNVERIFIED |
| CTCam Tool & Engineering Inc | North Royalaton | OH | Primary Metal Manufacturing331492 | 1-19 | ◇ UNVERIFIED |
| CACastek Aluminum, INC. | Elyria | OH | Primary Metal Manufacturing331524 | 20-99 | ◇ UNVERIFIED |
| CCCastlebar Corporation | Canton | OH | Primary Metal Manufacturing331491 | 1-19 | ◇ UNVERIFIED |
| CSCGAR Stainless, LLC | Eastlake | OH | Primary Metal Manufacturing331221 | 20-99 | ◇ UNVERIFIED |
| CECleveland Engineered Materials | Bedford Heights | OH | Primary Metal Manufacturing331491 | 1-19 | ◇ UNVERIFIED |
| FSFounders Service & Manufacturing, INC. | Deerfield | OH | Primary Metal Manufacturing331522 | 20-99 | ◇ UNVERIFIED |
| HBHarvey Brothers, INC. | Cincinnati | OH | Primary Metal Manufacturing331221 | 1-19 | ◇ UNVERIFIED |
| JSJj Seville LLC | Seville | OH | Primary Metal Manufacturing331523 | 20-99 | ◇ UNVERIFIED |
| KIKlb Industries, INC. | Bellefontaine | OH | Primary Metal Manufacturing331316 | 1-19 | ◇ UNVERIFIED |
| KMKylcase Metals, LLC | Canton | OH | Primary Metal Manufacturing331492 | 1-19 | ◇ UNVERIFIED |
| MMMicron Manufacturing Inc. | LaGrange | OH | Primary Metal Manufacturing331110 | 20-99 | ◇ UNVERIFIED |
| MPModel Pattern & Foundry CO | Cincinnati | OH | Primary Metal Manufacturing331524 | 1-19 | ◇ UNVERIFIED |
| MEMts Enterprises Llc | Springfield | OH | Primary Metal Manufacturing331315 | 1-19 | ◇ UNVERIFIED |
| NANew Age Design & Tool, Inc. | Lagrange | OH | Primary Metal Manufacturing331110 | 1-19 | ◇ UNVERIFIED |
| NCNorth Central Processing | Cleveland | OH | Primary Metal Manufacturing331111 | 1-19 | ◇ UNVERIFIED |
| OVOhio Valley Stamping-assemblies INC. | Mansfield | OH | Primary Metal Manufacturing331210 | 20-99 | ◇ UNVERIFIED |
| PWPaul Wilke & Son, INC. | Cincinnati | OH | Primary Metal Manufacturing331222 | 1-19 | ◇ UNVERIFIED |
| PPPost Products | Kent | OH | Primary Metal Manufacturing331110 | 1-19 | ◇ UNVERIFIED |
| PFPrototype Fabricators Co. | Cleveland | OH | Primary Metal Manufacturing331221 | 1-19 | ◇ UNVERIFIED |
| RCRoss Casting & Innovation, LLC | Sidney | OH | Primary Metal Manufacturing331521 | — | ◇ UNVERIFIED |
| SASeyekcub Aluminum | Uhrichsville | OH | Primary Metal Manufacturing331521 | 20-99 | ◇ UNVERIFIED |
| TDTherm-o-link Dba Vulkor INC. | Warren | OH | Primary Metal Manufacturing331222 | 20-99 | ◇ UNVERIFIED |
| UIUtm Investments INC. | Lakeview | OH | Primary Metal Manufacturing331210 | 20-99 | ◇ UNVERIFIED |
| ASA.b. Steel Mill, INC. | Cincinnati | OH | Primary Metal Manufacturing331110 | — | ◇ UNVERIFIED |
| AIAccufab, INC. | West Chester | OH | Primary Metal Manufacturing331110 | — | ◇ UNVERIFIED |
| ASAk-isg Steel Coating CO | Cleveland | OH | Primary Metal Manufacturing331112 | — | ◇ UNVERIFIED |
| ATAlcoa Titanium & Engineered Products (atep) | Niles | OH | Primary Metal Manufacturing331491 | — | ◇ UNVERIFIED |
| AMAlexy Metals LLC | Willoughby | OH | Primary Metal Manufacturing331492 | — | ◇ UNVERIFIED |
| ALAllegheny Ludlum LLC | Louisville | OH | Primary Metal Manufacturing331221 | — | ◇ UNVERIFIED |
 American Metal Technologies LLC | Xenia | OH | Primary Metal Manufacturing331521 | — | ◇ UNVERIFIED |
| AUAmerican Utility Processing, LLC | Akron | OH | Primary Metal Manufacturing331221 | — | ◇ UNVERIFIED |
| AArcelormittal | Cleveland | OH | Primary Metal Manufacturing331110 | — | ◇ UNVERIFIED |
| ACArcerlormittal Cleveland LLC | Cleveland | OH | Primary Metal Manufacturing331110 | — | ◇ UNVERIFIED |
| AIArmco INC Research & Technology Vim Laboratory | Middletown | OH | Primary Metal Manufacturing331111 | — | ◇ UNVERIFIED |
| AFAt&t-cable Fluff Removal, Paulding | Paulding | OH | Primary Metal Manufacturing331492 | — | ◇ UNVERIFIED |
| BABabcock and Wilcox - Foundry Operations (1677020054) | Barberton | OH | Primary Metal Manufacturing331511 | — | ◇ UNVERIFIED |
| BABasic Aluminum Casting CO. | Cleveland | OH | Primary Metal Manufacturing331523 | — | ◇ UNVERIFIED |
| BMBay Metal INC | Richfield | OH | Primary Metal Manufacturing331423 | — | ◇ UNVERIFIED |
| BWBdm Warren Steel Operations, LLC (0278000463) | Warren | OH | Primary Metal Manufacturing331110 | — | ◇ UNVERIFIED |
| BCBekaert Corporation | Fairlawn | OH | Primary Metal Manufacturing331222 | — | ◇ UNVERIFIED |
| BSBr Services | Canton | OH | Primary Metal Manufacturing331513 | — | ◇ UNVERIFIED |
| BWBrush Wellman Engineered Materials | Lorain | OH | Primary Metal Manufacturing331529 | — | ◇ UNVERIFIED |
| CWCalvert Wire & Cable Corporation | Canton | OH | Primary Metal Manufacturing331222 | — | ◇ UNVERIFIED |
| CMCharter Manufacturing Company, INC. | Cleveland | OH | Primary Metal Manufacturing331110 | — | ◇ UNVERIFIED |
| CBChase Brass & Copper Company LLC | Montpelier | OH | Primary Metal Manufacturing331421 | — | ◇ UNVERIFIED |
| CCinao | Franklin | OH | Primary Metal Manufacturing331524 | — | ◇ UNVERIFIED |
| CCinao | Batavia | OH | Primary Metal Manufacturing331314 | — | ◇ UNVERIFIED |
| CRC&l Repair/fabrication LLC | Martins Ferry | OH | Primary Metal Manufacturing331110 | — | ◇ UNVERIFIED |
