| IIIsaiah Industries, Inc. | Piqua | OH | Primary Metal Manufacturing331318 | 20-99 | ◐ LIKELY ACTIVE |
| KMKing Model Company INC (1677011225) | Akron | OH | Primary Metal Manufacturing331524 | — | ◐ LIKELY ACTIVE |
| KRKohart Recycling of Fostoria | Fostoria | OH | Primary Metal Manufacturing331314 | — | ◐ LIKELY ACTIVE |
| LTLiberty Tec | Delaware | OH | Primary Metal Manufacturing331511 | 20-99 | ◐ LIKELY ACTIVE |
| MDMcwane Ductile | Coshocton | OH | Primary Metal Manufacturing331511 | 500+ | ◐ LIKELY ACTIVE |
| MMMetal Matic INC | Middletown | OH | Primary Metal Manufacturing331210 | — | ◐ LIKELY ACTIVE |
| NINavarre Industries | Navarre | OH | Food Manufacturing311812 | 100-499 | ◐ LIKELY ACTIVE |
| PAPennex Aluminum Company - Leetonia | Leetonia | OH | Primary Metal Manufacturing331316 | 100-499 | ◐ LIKELY ACTIVE |
| PFPentair Flow Technologies, LLC - Ashland Casting Center | Ashland | OH | Primary Metal Manufacturing331511 | — | ◐ LIKELY ACTIVE |
| RAReserve Alloys LLC | Twinsburg | OH | Primary Metal Manufacturing331314 | — | ◐ LIKELY ACTIVE |
| SWSteelial Welding & Metal Fabrication, INC | Vinton | OH | Primary Metal Manufacturing331110 | 20-99 | ◐ LIKELY ACTIVE |
| SMSt Marys Foundry | St Marys | OH | Primary Metal Manufacturing331511 | 100-499 | ◐ LIKELY ACTIVE |
| WCWorthington-Samuel Coil Processing Cleveland West | Cleveland | OH | Primary Metal Manufacturing331221 | 20-99 | ◐ LIKELY ACTIVE |
| WCWorthington-Samuel Coil Processing Twinsburg | Twinsburg | OH | Primary Metal Manufacturing331221 | 20-99 | ◐ LIKELY ACTIVE |
| AAAmcast Automotive Wapakoneta Plant | Wapakoneta | OH | Primary Metal Manufacturing331521 | — | ◐ LIKELY ACTIVE |
| AMArcelor Mittal Marion | Marion | OH | Primary Metal Manufacturing331210 | — | ◐ LIKELY ACTIVE |
| BSBanner Service Corporation | Strongsville | OH | Primary Metal Manufacturing331491 | — | ◐ LIKELY ACTIVE |
| CSCooper Standard Automotive INC | New Lexington | OH | Primary Metal Manufacturing331210 | — | ◐ LIKELY ACTIVE |
| DIDietrich Ind | Hicksville | OH | Primary Metal Manufacturing331221 | — | ◐ LIKELY ACTIVE |
| EFEpcor Foundries | Cincinnati | OH | Primary Metal Manufacturing331524 | — | ◐ LIKELY ACTIVE |
| FLFenix LLC | Wapakoneta | OH | Primary Metal Manufacturing331222 | 20-99 | ◐ LIKELY ACTIVE |
| FMFrancis Manufacturing Co-francis Manufacturing CO | Russia | OH | Primary Metal Manufacturing331524 | — | ◐ LIKELY ACTIVE |
| FCFulton County Processing LTD a Heidtman Steel CO | Delta | OH | Primary Metal Manufacturing331221 | — | ◐ LIKELY ACTIVE |
| ILIronunits LLC | Toledo | OH | Primary Metal Manufacturing331110 | — | ◐ LIKELY ACTIVE |
| ILIronunits LLC - Toledo Hbi (0448011992) | Toledo | OH | Primary Metal Manufacturing331110 | — | ◐ LIKELY ACTIVE |
| JHJw Harris CO INC Dba Harris Products Group | Mason | OH | Primary Metal Manufacturing331420 | — | ◐ LIKELY ACTIVE |
| MVMiami Valley Steel Service, INC. | Piqua | OH | Primary Metal Manufacturing331221 | 100-499 | ◐ LIKELY ACTIVE |
| NBNucor Bright Bar Orrville | Orrville | OH | Primary Metal Manufacturing331221 | — | ◐ LIKELY ACTIVE |
| PIPicoma Industries-a Division of Zekelman Industries | Cambridge | OH | Primary Metal Manufacturing331210 | — | ◐ LIKELY ACTIVE |
| PPPiqua Power Plant | Piqua | OH | Primary Metal Manufacturing331511 | — | ◐ LIKELY ACTIVE |
| RARhenium Alloys INC | North Ridgeville | OH | Primary Metal Manufacturing331491 | 20-99 | ◐ LIKELY ACTIVE |
| RARoss Aluminum Castings LLC | Sidney | OH | Primary Metal Manufacturing331523 | — | ◐ LIKELY ACTIVE |
| RTRotocast Technologies | Akron | OH | Primary Metal Manufacturing331524 | 1-19 | ◐ LIKELY ACTIVE |
| SJSaint Joseph Mint | Mount Vernon | OH | Primary Metal Manufacturing331491 | — | ◐ LIKELY ACTIVE |
| SWShelby Welded Tube | Shelby | OH | Primary Metal Manufacturing331210 | — | ◐ LIKELY ACTIVE |
| SCSix C Fabrication, INC. (1667070022) | Rootstown | OH | Primary Metal Manufacturing331210 | — | ◐ LIKELY ACTIVE |
| SMSkye Metal Recovery INC (0684005004) | Marietta | OH | Primary Metal Manufacturing331492 | — | ◐ LIKELY ACTIVE |
| SMSpectrum Machine INC | Ravenna | OH | Primary Metal Manufacturing331421 | — | ◐ LIKELY ACTIVE |
| STSteel Technologies LLC | Ottawa | OH | Primary Metal Manufacturing331221 | — | ◐ LIKELY ACTIVE |
| STSteel Technologies LLC | Willoughby | OH | Primary Metal Manufacturing331221 | — | ◐ LIKELY ACTIVE |
| TSThomas Steel Strip Corporation Tata Steel Plating | Warren | OH | Primary Metal Manufacturing331221 | — | ◐ LIKELY ACTIVE |
| UTUnited Tube Corparation | Medina | OH | Primary Metal Manufacturing331110 | 20-99 | ◐ LIKELY ACTIVE |
| USUS Steel - Lorain Tubular Operations | Lorain | OH | Primary Metal Manufacturing331210 | — | ◐ LIKELY ACTIVE |
| WSWarren Steel Holdings LLC | Warren | OH | Primary Metal Manufacturing331110 | — | ◐ LIKELY ACTIVE |
| WTWheatland Tube CO Niles Plant | Niles | OH | Primary Metal Manufacturing331210 | — | ◐ LIKELY ACTIVE |
| WIWorthington Industries (formerly Heidtman Steel Products) | Cleveland | OH | Primary Metal Manufacturing331221 | — | ◐ LIKELY ACTIVE |
| ASAk Steel Corporation - Steubenville Intake Pumphouse | Steubenville | OH | Primary Metal Manufacturing331111 | — | ◇ UNVERIFIED |
| ASAleris Specialty Products INC | Cleveland | OH | Primary Metal Manufacturing331314 | — | ◇ UNVERIFIED |
| APAmerican Processing LLC | Cleveland | OH | Primary Metal Manufacturing331221 | — | ◇ UNVERIFIED |
| APAvalon Precision Casting Company LLC | Cleveland | OH | Primary Metal Manufacturing331512 | — | ◇ UNVERIFIED |