 Sawbrook Steel Casting LLC | Lockland | OH | Primary Metal Manufacturing331513 | 20-99 | ◐ LIKELY ACTIVE |
| SFStar Fab, LLC (Canfield) | Canfield | OH | Primary Metal Manufacturing331313 | 20-99 | ◐ LIKELY ACTIVE |
| SWSteelial Welding & Metal Fabrication, INC | Vinton | OH | Primary Metal Manufacturing331110 | — | ◐ LIKELY ACTIVE |
| SPStephens Pipe and Steel Mount Sterling, OH | Mount Sterling | OH | Primary Metal Manufacturing331222 | 100-499 | ◐ LIKELY ACTIVE |
| SMSt Marys Foundry | Saint Marys | OH | Primary Metal Manufacturing331511 | 100-499 | ◐ LIKELY ACTIVE |
| TCterrasmart - Cincinnati | Cincinnati | OH | Primary Metal Manufacturing331221 | 100-499 | ◐ LIKELY ACTIVE |
| TBThe Boehm Pressed Steel Co | Valley City | OH | Primary Metal Manufacturing331110 | 20-99 | ◐ LIKELY ACTIVE |
| T2Torque 2020 CMA Acquisition LLC | Bolivar | OH | Primary Metal Manufacturing331222 | 20-99 | ◐ LIKELY ACTIVE |
| TFTrumbull Foundry and Alloy Henry Street | Niles | OH | Primary Metal Manufacturing331511 | 1-19 | ◐ LIKELY ACTIVE |
| UCUnion City Foundry | Union City | OH | Primary Metal Manufacturing331524 | 20-99 | ◐ LIKELY ACTIVE |
| WTWheatland Tube Warren | Warren | OH | Primary Metal Manufacturing331210 | 100-499 | ◐ LIKELY ACTIVE |
| WCWieland Chase | Montpelier | OH | Primary Metal Manufacturing331420 | 100-499 | ◐ LIKELY ACTIVE |
| WSWorthington Steel Cleveland | Cuyahoga Heights | OH | Primary Metal Manufacturing331221 | 100-499 | ◐ LIKELY ACTIVE |
| WSWorthington Steel Technical Services | Columbus | OH | Primary Metal Manufacturing331221 | 20-99 | ◐ LIKELY ACTIVE |
| CSCalmego Specialized Products, LLC | Greenville | OH | Primary Metal Manufacturing331521 | — | ◇ UNVERIFIED |
| ODOmni Die Casting INC | Massillon | OH | Primary Metal Manufacturing331521 | — | ◇ UNVERIFIED |
| SISeilkop Industries, INC. | Cincinnati | OH | Primary Metal Manufacturing331524 | — | ◇ UNVERIFIED |
| 4E45qua Emery Cutter & Foundry Co.,inc. Dba Piqua Em | Piqua | OH | Primary Metal Manufacturing331524 | — | ◇ 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 |
| ACAl Custom Polishing | New Carlisle | OH | Primary Metal Manufacturing331319 | — | ◇ UNVERIFIED |
| AMAlexy Metals LLC | Willoughby | OH | Primary Metal Manufacturing331492 | — | ◇ UNVERIFIED |
| ALAllegheny Ludlum LLC | Louisville | OH | Primary Metal Manufacturing331221 | — | ◇ UNVERIFIED |
| AMAlumalloy Metalcasting CO. | Avon Lake | OH | Primary Metal Manufacturing331524 | — | ◇ UNVERIFIED |
| AHAmerican Highway Products, LTD | Bolivar | OH | Primary Metal Manufacturing331210 | — | ◇ 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 |
| AUArcelormittal USA | Newburgh Heights | OH | Primary Metal Manufacturing331111 | — | ◇ 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 |
| ANAuris Noble LLC | Akron | OH | Primary Metal Manufacturing331492 | — | ◇ UNVERIFIED |
| BABabcock and Wilcox - Foundry Operations (1677020054) | Barberton | OH | Primary Metal Manufacturing331511 | — | ◇ UNVERIFIED |
| BMBarclay Machine, INC. | Salem | OH | Primary Metal Manufacturing331221 | — | ◇ 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 |
| BGB.w. Grinding CO. | Lyons | OH | Primary Metal Manufacturing331511 | — | ◇ UNVERIFIED |
| CWCalvert Wire & Cable Corporation | Canton | OH | Primary Metal Manufacturing331222 | — | ◇ UNVERIFIED |
| CACastek Aluminum, INC. | Elyria | OH | Primary Metal Manufacturing331524 | — | ◇ UNVERIFIED |
| CCCastlebar Corporation | Canton | OH | Primary Metal Manufacturing331491 | — | ◇ 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 |
