| TSThomas Steel Strip CORP | Warren | OH | Primary Metal Manufacturing331221 | 100-499 | ◐ LIKELY ACTIVE |
| AMAds Machinery CORP | Warren | OH | Machinery Manufacturing333516 | 1-19 | ◐ LIKELY ACTIVE |
| LSLTD Steel Coke Plant | Warren | OH | Petroleum and Coal Products Manufacturing324199 | — | ◐ LIKELY ACTIVE |
| NCNovelis Corporation (0278080136) | Warren | OH | Primary Metal Manufacturing331315 | — | ◐ LIKELY ACTIVE |
| TLTecnocap, LLC (0278080620) | Warren | OH | Fabricated Metal Product Manufacturing332812 | — | ◐ LIKELY ACTIVE |
Autochargit, LLC | Warren | OH | Transportation Equipment Manufacturing336320 | — | ◐ LIKELY ACTIVE |
| FIFlex-Strut, Inc. | Warren | OH | Fabricated Metal Product Manufacturing332312 | 100-499 | ◐ LIKELY ACTIVE |
| FEFoxconn Ev System LLC | Warren | OH | Transportation Equipment Manufacturing336111 | — | ◐ LIKELY ACTIVE |
| LSLiberty Steel Pressed Products | Warren | OH | Fabricated Metal Product Manufacturing332116 | 100-499 | ◐ LIKELY ACTIVE |
| PMPremium Meats, INC. | Warren | OH | Food Manufacturing311612 | — | ◐ LIKELY ACTIVE |
| PTPrimetals Technologies - Warren | Warren | OH | Fabricated Metal Product Manufacturing332710 | 20-99 | ◐ LIKELY ACTIVE |
| COCurrent of Warren INC | Warren | OH | Textile Mills313320 | — | ◐ LIKELY ACTIVE |
| TSThomas Steel Strip Corporation Tata Steel Plating | Warren | OH | Primary Metal Manufacturing331221 | — | ◐ LIKELY ACTIVE |
| WSWarren Steel Holdings LLC | Warren | OH | Primary Metal Manufacturing331110 | — | ◐ LIKELY ACTIVE |
| AIAML Industries Inc | Warren | OH | Chemical Manufacturing325998 | 20-99 | ◐ LIKELY ACTIVE |
| APAptiv - Plant 7 | Warren | OH | Transportation Equipment Manufacturing336320 | 20-99 | ◐ LIKELY ACTIVE |
| CCCDH Custom Roll Form LLC | Warren | OH | Fabricated Metal Product Manufacturing332114 | 20-99 | ◐ LIKELY ACTIVE |
| CDClarkWestern Dietrich Building Systems - Warren, OH | Warren | OH | Fabricated Metal Product Manufacturing332322 | 100-499 | ◐ LIKELY ACTIVE |
| CCCleveland-Cliffs Cleveland Works (Warren Location) (EIN 043634649) | Warren | OH | Petroleum and Coal Products Manufacturing324199 | 100-499 | ◐ LIKELY ACTIVE |
| DMDrake Manufacturing LLC | Warren | OH | Machinery Manufacturing333517 | 20-99 | ◐ LIKELY ACTIVE |
| DDD&w Defense Contractors | Warren | OH | Fabricated Metal Product Manufacturing332999 | — | ◐ LIKELY ACTIVE |
| GIGlunt Industries Plant 1 | Warren | OH | Fabricated Metal Product Manufacturing332710 | 20-99 | ◐ LIKELY ACTIVE |
| GIGlunt Industries Plant 2 | Warren | OH | Fabricated Metal Product Manufacturing332710 | 20-99 | ◐ LIKELY ACTIVE |
| GIGlunt Industries Plant 3 | Warren | OH | Fabricated Metal Product Manufacturing332710 | 1-19 | ◐ LIKELY ACTIVE |
| LDLeone DiCesare & Sons | Warren | OH | Beverage and Tobacco Product Manufacturing312130 | — | ◐ LIKELY ACTIVE |
| LSLivi Steel Inc | Warren | OH | Fabricated Metal Product Manufacturing332312 | 20-99 | ◐ LIKELY ACTIVE |
| NCNovelis Corporation | Warren | OH | Fabricated Metal Product Manufacturing332812 | 20-99 | ◐ LIKELY ACTIVE |
| OOPTA-Warren | Warren | OH | Nonmetallic Mineral Product Manufacturing327992 | 1-19 | ◐ LIKELY ACTIVE |
| WWarren | Warren | OH | Fabricated Metal Product Manufacturing332313 | 1-19 | ◐ LIKELY ACTIVE |
| WOWarren OH | Warren | OH | Nonmetallic Mineral Product Manufacturing327320 | 1-19 | ◐ LIKELY ACTIVE |
| WTWheatland Tube Warren | Warren | OH | Primary Metal Manufacturing331210 | 100-499 | ◐ LIKELY ACTIVE |