| PTPremier Tool & Design INC | Oklahoma City | 1–19 | ◐ LIKELY ACTIVE |
| RORoll Offs of America | Durant | 100–499 | ◐ LIKELY ACTIVE |
| RHR.W. Holland I, LCC | Tulsa | 20–99 | ◐ LIKELY ACTIVE |
| SJS & J Manufacturing INC | Skiatook | 1–19 | ◐ LIKELY ACTIVE |
| SUSouthwest United Industries INC | Tulsa | — | ▲ REPORTED CLOSED |
| TFTaylor Forge Engineered Systems Tulsa | Tulsa | 20–99 | ◐ LIKELY ACTIVE |
| TITek-fins, INC. | Tulsa | 100–499 | ◐ LIKELY ACTIVE |
| TMTexoma Millwright and Welding, INC. | Durant | — | ◐ LIKELY ACTIVE |
| TBThomas & Betts | Tulsa | — | ◐ LIKELY ACTIVE |
| TPTulsa Pressure Vessels, LLC | Tulsa | 20–99 | ◐ LIKELY ACTIVE |
| VIValmont Industries Tulsa | Tulsa | 100–499 | ◐ LIKELY ACTIVE |
| VSV & S Schuler Tubular Products | Muskogee | 20–99 | ◐ LIKELY ACTIVE |
| WFWedlake Fabricating, INC. | Tulsa | 100–499 | ◐ LIKELY ACTIVE |
| WMWeldPro Manufacturing LLC | Tulsa | 20–99 | ◐ LIKELY ACTIVE |
| WMWilco Mach and Fabrication INC / Nov Wilco North | Marlow | — | ◐ LIKELY ACTIVE |
| WPWilson Products INC | Tulsa | 1–19 | ◐ LIKELY ACTIVE |
| 1E10055 E 56th St N | Tulsa | — | ◐ LIKELY ACTIVE |
| 3I3b Industries INC | Comanche | 1–19 | ◐ LIKELY ACTIVE |
| ALAlfa Laval, INC. US Spiral Heat Exchanger (she) | Broken Arrow | — | ◐ LIKELY ACTIVE |
| CCaptiveaire | Muskogee | — | ◐ LIKELY ACTIVE |
| CCCarlson Company | Tulsa | — | ◐ LIKELY ACTIVE |
| CChart | Tulsa | — | ◐ LIKELY ACTIVE |
| CRCmc Rebar - Oklahoma City | Oklahoma City | — | ◐ LIKELY ACTIVE |
| DPD&B Processing, LLC | Broken arrow | 20–99 | ◐ LIKELY ACTIVE |
| DCDick Conner Correctional Center | Hominy | — | ◐ LIKELY ACTIVE |
| DEDragon Esp LTD / Ve Enterprises | Springer | — | ◐ LIKELY ACTIVE |
| FEForum Energy Technologies | Guthrie | — | ◐ LIKELY ACTIVE |
| HMHELI-ARC Manufacturing Corp. | Owasso | 1–19 | ◐ LIKELY ACTIVE |
| HMHolmboe Manufacturing CO. | Oklahoma City | 20–99 | ◐ LIKELY ACTIVE |
| NANov Ameron Tulsa Pole Products Welding & Fabrication | Tulsa | — | ◐ LIKELY ACTIVE |
Oerlikon Balzers Coating USA INC. | Oklahoma City | — | ◐ LIKELY ACTIVE |
| RHReda Hps | Owasso | — | ◐ LIKELY ACTIVE |
| RARolled Alloys | Tulsa | — | ◐ LIKELY ACTIVE |
Steelfab, INC. - Texas Division | Durant | — | ◐ LIKELY ACTIVE |
| SNSwep North America | Tulsa | — | ◐ LIKELY ACTIVE |
| TCTechnotherm CORP. | Tulsa | 20–99 | ◐ LIKELY ACTIVE |
| UIUnarco Ind LLC / Wagoner Faclty | Wagoner | — | ◐ LIKELY ACTIVE |
| USUniversal Sandblasting and Coating INC / 1800 S 49th W Ave | Tulsa | — | ◐ LIKELY ACTIVE |
| VIValmont Industries INC | Tulsa | — | ◐ LIKELY ACTIVE |
| 3D3 D Manufacturing, INC | Sapulpa | 1–19 | ◇ UNVERIFIED |
| ATAlliance Tank Service LLC / Cushing Facility | Cushing | — | ◇ UNVERIFIED |
| AIAsc, INC. | Tulsa | — | ◇ UNVERIFIED |
| BCBalon CORP / Eastern Valve Mfg Facility | Oklahoma City | — | ◇ UNVERIFIED |
| BBBison Bluff Services | Catoosa | — | ◇ UNVERIFIED |
| BTBodycote Thermal Processing, INC. - Okc | Oklahoma City | — | ◇ UNVERIFIED |
| CDCeco Door Prods | Oklahoma City | — | ◇ UNVERIFIED |
| CRCff Recycling USA / 100 N Bath | Oklahoma City | — | ◇ UNVERIFIED |
| CMChoctaw Mfg and Dev CORP / Choctaw Metal and Goods Mfg Faclty | Hugo | — | ◇ UNVERIFIED |
| CRCommercial Resins | Tulsa | — | ◇ UNVERIFIED |
| DIDci Ind / 5716 Nw 4th St | Oklahoma City | — | ◇ UNVERIFIED |