| MAMid American Steel and Wire CO - Mill | Madill | OK | Primary Metal Manufacturing331110 | 100-499 | ◐ LIKELY ACTIVE |
| RAReal Alloy Recycling LLC | Sapulpa | OK | Primary Metal Manufacturing331314 | 20-99 | ◐ LIKELY ACTIVE |
Webco Industries INC Kellyville Specialty Tube | Kellyville | OK | Primary Metal Manufacturing331110 | 100-499 | ◐ LIKELY ACTIVE |
Webco Industries, INC. Ok Dist. Div | Tulsa | OK | Primary Metal Manufacturing331210 | 20-99 | ◐ LIKELY ACTIVE |
Blue Whale Materials LLC | Bartlesville | OK | Textile Product Mills314999 | 20-99 | ◐ LIKELY ACTIVE |
| CSCmc Steel Oklahoma | Durant | OK | Primary Metal Manufacturing331110 | 100-499 | ◐ LIKELY ACTIVE |
| DSDw-national Standard-stillwater LLC | Stillwater | OK | Primary Metal Manufacturing331222 | — | ◐ LIKELY ACTIVE |
| SSSand Springs | Sand Springs | OK | Primary Metal Manufacturing331110 | — | ◐ LIKELY ACTIVE |
| TDTubacex Durant INC. | Durant | OK | Primary Metal Manufacturing331210 | 20-99 | ◐ LIKELY ACTIVE |
| WIWebco Industries, Star Center Tube | Sand Springs | OK | Primary Metal Manufacturing331210 | — | ◐ LIKELY ACTIVE |
| CFClaremore Faclty | Claremore | OK | Primary Metal Manufacturing331420 | — | ◐ LIKELY ACTIVE |
| JZJohn Zink Apache Facility | Tulsa | OK | Primary Metal Manufacturing331210 | — | ◐ LIKELY ACTIVE |
| SUStarpipe USA Dba Sp Foundry / Sp Foundry | South Coffeyville | OK | Primary Metal Manufacturing331511 | — | ◐ LIKELY ACTIVE |
| VSVallourec Star LP / Muskogee Plt | Muskogee | OK | Primary Metal Manufacturing331210 | — | ◐ LIKELY ACTIVE |
| ASAcs Steel Co., LLC | Tulsa | OK | Primary Metal Manufacturing331110 | 20-99 | ◐ LIKELY ACTIVE |
| LALos Angeles Boiler Works Inc. | Blackwell | OK | Primary Metal Manufacturing331221 | 20-99 | ◐ LIKELY ACTIVE |
| OSOps Sales Company | Dewey | OK | Primary Metal Manufacturing331210 | 100-499 | ◐ LIKELY ACTIVE |
| PPPelco Products INC. | Edmond | OK | Primary Metal Manufacturing331210 | 100-499 | ◐ LIKELY ACTIVE |
| TFTaylor Forge Engineered Systems Tulsa | Tulsa | OK | Primary Metal Manufacturing331210 | 20-99 | ◐ LIKELY ACTIVE |
| HCHorsehead Corp/bartlesville Div | Bartlesville | OK | Primary Metal Manufacturing331410 | — | ◐ LIKELY ACTIVE |
| YIYaffe Iron and Metal CO - Muskogee | Muskogee | OK | Primary Metal Manufacturing331314 | — | ◐ LIKELY ACTIVE |
| AIAlpha Investment Castings | Tulsa | OK | Primary Metal Manufacturing331529 | 20-99 | ◐ LIKELY ACTIVE |
| BMBri-Steel Manufacturing LLC | Enid | OK | Primary Metal Manufacturing331210 | 20-99 | ◐ LIKELY ACTIVE |
| MMct | Sallisaw | OK | Primary Metal Manufacturing331523 | 20-99 | ◐ LIKELY ACTIVE |
| OSOKC - Southwest Tube | Sand Springs | OK | Primary Metal Manufacturing331210 | 100-499 | ◐ LIKELY ACTIVE |
| OSOKC - Star Center Tube | Sand Springs | OK | Primary Metal Manufacturing331210 | 100-499 | ◐ LIKELY ACTIVE |
| PMPRL Manufacturing | Tulsa | OK | Primary Metal Manufacturing331110 | 20-99 | ◐ LIKELY ACTIVE |
| PFPT Foundry | Eind | OK | Primary Metal Manufacturing331524 | 20-99 | ◐ LIKELY ACTIVE |
| SSSaber Steel, LLC | Tulsa | OK | Primary Metal Manufacturing331221 | 1-19 | ◐ LIKELY ACTIVE |
| SWSouthwestern Wire, Inc. Tulsa | Tulsa | OK | Primary Metal Manufacturing331222 | 20-99 | ◐ LIKELY ACTIVE |
| SFSP Foundry | South Coffeyville | OK | Primary Metal Manufacturing331511 | 100-499 | ◐ LIKELY ACTIVE |