| ABAmerican Bronze Corporation | Cleveland | OH | Primary Metal Manufacturing331522 | 20-99 | ◐ LIKELY ACTIVE |
| BCB & C Castings | Barberton | OH | Primary Metal Manufacturing331316 | 20-99 | ◐ LIKELY ACTIVE |
| CACelina Aluminum Precision Tech | Celina | OH | Primary Metal Manufacturing331524 | 100-499 | ◐ LIKELY ACTIVE |
| FRFort Recovery Industries INC | Fort Recovery | OH | Primary Metal Manufacturing331523 | 100-499 | ◐ LIKELY ACTIVE |
| GSGkn Sinter Metals | Gallipolis | OH | Primary Metal Manufacturing331110 | 100-499 | ◐ LIKELY ACTIVE |
| HMHildreth Mfg LLC | Marion | OH | Primary Metal Manufacturing331522 | 20-99 | ◐ LIKELY ACTIVE |
| KAKaiser Aluminum | Heath | OH | Primary Metal Manufacturing331312 | 100-499 | ◐ LIKELY ACTIVE |
| MBMahle Behr Mt Sterling INC | Mount Sterling | OH | Primary Metal Manufacturing331318 | 100-499 | ◐ LIKELY ACTIVE |
| MBMaterion Brush INC | Lorain | OH | Primary Metal Manufacturing331314 | 20-99 | ◐ LIKELY ACTIVE |
| MCMulti-cast CORP | Wauseon | OH | Primary Metal Manufacturing331521 | 20-99 | ◐ LIKELY ACTIVE |
| RERimer Enterprises INC | Waterville | OH | Primary Metal Manufacturing331512 | 20-99 | ◐ LIKELY ACTIVE |
| RTRmi Titanium CO (0278060189) | Niles | OH | Primary Metal Manufacturing331491 | — | ◐ LIKELY ACTIVE |
| RHRyder Heil Bronze INC | Bucyrus | OH | Primary Metal Manufacturing331523 | 20-99 | ◐ LIKELY ACTIVE |
| SISancast INC | Coshocton | OH | Primary Metal Manufacturing331511 | 20-99 | ◐ LIKELY ACTIVE |
| TSThomas Steel Strip CORP | Warren | OH | Primary Metal Manufacturing331221 | 100-499 | ◐ LIKELY ACTIVE |
| TLTri-cast LTD | Akron | OH | Primary Metal Manufacturing331313 | 20-99 | ◐ LIKELY ACTIVE |
| URUnited Rolls INC | Canton | OH | Primary Metal Manufacturing331511 | 100-499 | ◐ LIKELY ACTIVE |
| WCWorthington Cylinder Corporation | Westerville | OH | Primary Metal Manufacturing331221 | 100-499 | ◐ LIKELY ACTIVE |
| WSWorthington Steel (0326000076) | Delta | OH | Primary Metal Manufacturing331221 | 100-499 | ◐ LIKELY ACTIVE |
| WSWorthington Steel CO | Columbus | OH | Primary Metal Manufacturing331221 | 100-499 | ◐ LIKELY ACTIVE |
| WSWorthington Steel Company (1409070344) | Monroe | OH | Primary Metal Manufacturing331221 | 100-499 | ◐ LIKELY ACTIVE |
| AIAlcon Industries, INC. (1318007755) | Cleveland | OH | Primary Metal Manufacturing331512 | — | ◐ LIKELY ACTIVE |
American Aluminum Extrusions of Ohio LLC | Canton | OH | Primary Metal Manufacturing331314 | 20-99 | ◐ LIKELY ACTIVE |
| AVAmg Vanadium LLC | Zanesville | OH | Primary Metal Manufacturing331110 | — | ◐ LIKELY ACTIVE |
| AMArmor Metal Group | Mason | OH | Primary Metal Manufacturing331521 | 100-499 | ◐ LIKELY ACTIVE |
| ACAstro Coatings INC | Struthers | OH | Primary Metal Manufacturing331318 | — | ◐ LIKELY ACTIVE |
Astro Industries INC | Dayton | OH | Primary Metal Manufacturing331422 | — | ◐ LIKELY ACTIVE |
| BCBekaert Corporation (0285010331) | Orrville | OH | Primary Metal Manufacturing331221 | — | ◐ LIKELY ACTIVE |
Bunting Bearings CORP | Delta | OH | Primary Metal Manufacturing331111 | — | ◐ LIKELY ACTIVE |
Bunting Bearings LLC | Mansfield | OH | Primary Metal Manufacturing331525 | — | ◐ LIKELY ACTIVE |
| CSCirba Solutions Us, INC | Lancaster | OH | Primary Metal Manufacturing331314 | — | ◐ LIKELY ACTIVE |
| CSCleveland-cliffs Steel CORP - Mansfield Facility | Mansfield | OH | Primary Metal Manufacturing331110 | — | ◐ LIKELY ACTIVE |
| CSCleveland-cliffs Steel Corporation | Coshocton | OH | Primary Metal Manufacturing331110 | — | ◐ LIKELY ACTIVE |
| CPConsolidated Precision Products | Euclid | OH | Primary Metal Manufacturing331512 | 100-499 | ◐ LIKELY ACTIVE |
| EDEmpire Die Casting Co., INC. | Macedonia | OH | Primary Metal Manufacturing331521 | 100-499 | ◐ LIKELY ACTIVE |
| EMEramet Marietta Metallurgical Plant | Marietta | OH | Primary Metal Manufacturing331110 | — | ◐ LIKELY ACTIVE |
| FMFerrous Metal Processing CO | Brooklyn | OH | Primary Metal Manufacturing331110 | 100-499 | ◐ LIKELY ACTIVE |
| FCFisher Cast Steel Products * | West Jefferson | OH | Primary Metal Manufacturing331513 | 20-99 | ◐ LIKELY ACTIVE |
| FCFulton County Processing LTD | Delta | OH | Primary Metal Manufacturing331221 | 100-499 | ◐ LIKELY ACTIVE |
| GEGeneral Extrusions INC | Youngstown | OH | Primary Metal Manufacturing331316 | 100-499 | ◐ LIKELY ACTIVE |
| GWGriffin Wheel Columbus Plant | Groveport | OH | Primary Metal Manufacturing331511 | — | ◐ LIKELY ACTIVE |
| HIHarrison Ironworks | Harrison | OH | Food Manufacturing311612 | — | ◐ LIKELY ACTIVE |
| IAImperial Aluminum - Minerva, LLC | Minerva | OH | Primary Metal Manufacturing331312 | — | ◐ LIKELY ACTIVE |
| ICIsg Columbus Coatings | Columbus | OH | Primary Metal Manufacturing331110 | — | ◐ LIKELY ACTIVE |
| JTJackson Tube Services INC | Piqua | OH | Primary Metal Manufacturing331210 | 100-499 | ◐ LIKELY ACTIVE |
| JAJewel Acquisition LLC - Louisville | Louisville | OH | Primary Metal Manufacturing331110 | — | ◐ LIKELY ACTIVE |
| JWJr Wheel | Norton | OH | Primary Metal Manufacturing331319 | 100-499 | ◐ LIKELY ACTIVE |
| JSJsw Steel USA Ohio (0641090010) | Mingo Junction | OH | Primary Metal Manufacturing331110 | — | ◐ LIKELY ACTIVE |
| LCLiberty Casting CO (0121010003) | Delaware | OH | Primary Metal Manufacturing331511 | — | ◐ LIKELY ACTIVE |
| MMMajor Metals Company | Mansfield | OH | Primary Metal Manufacturing331210 | 100-499 | ◐ LIKELY ACTIVE |