| IMIon Machining Service, LLC | Oklahoma city | 1–19 | ◇ UNVERIFIED |
| JPJanke Products, LLC | Oklahoma City | 1–19 | ◇ UNVERIFIED |
| JMJohnson Machine, INC. | Collinsville | — | ◇ UNVERIFIED |
| KMKenco Manufacturing Co., INC. | Atoka | 1–19 | ◇ UNVERIFIED |
| LSLongreach Steel INC | Tecumseh | 1–19 | ◇ UNVERIFIED |
| MMMac Machine, LLC | Pauls Valley | 1–19 | ◇ UNVERIFIED |
| MDMarine Development, INC. | Eufaula | 20–99 | ◇ UNVERIFIED |
| MBM.w. Bevins CO. | Tulsa | 20–99 | ◇ UNVERIFIED |
| OSOklahoma Specialties INC. | Owasso | 1–19 | ◇ UNVERIFIED |
| PPPaul Precision Machine INC. | Tulsa | 1–19 | ◇ UNVERIFIED |
| PBPowder Blue of Oklahoma | Tulsa | 1–19 | ◇ UNVERIFIED |
| PMPrecision Mfg & Design INC | Langley | 20–99 | ◇ UNVERIFIED |
| PSPrecision Sintered Parts, L.l.c. | Tulsa | 1–19 | ◇ UNVERIFIED |
| PMPremier Machine, Inc. | Tulsa | 1–19 | ◇ UNVERIFIED |
| PSProgressive Stamping, LLC | Oklahoma City | 20–99 | ◇ UNVERIFIED |
| PSPro Stainless & Sheet Metal LLC | Oklahoma City | 1–19 | ◇ UNVERIFIED |
| QSQuality Stainless, INC. | Oklahoma City | 1–19 | ◇ UNVERIFIED |
| SFShawnee Fabricators, INC. | Shawnee | 20–99 | ◇ UNVERIFIED |
| SFSouthwest Fabricators | Hugo | 20–99 | ◇ UNVERIFIED |
| TITankworks, Inc. | Allen | 20–99 | ◇ UNVERIFIED |
| TSTimmons Sheet Metal, Inc. | Bartlesville | 1–19 | ◇ UNVERIFIED |
| TPTopps Powder Coating, L.L.C. | Moore | 1–19 | ◇ UNVERIFIED |
| TCTower Components, INC. | Catoosa | 1–19 | ◇ UNVERIFIED |
| TSTri-Lift Services Inc. | Crescent | 20–99 | ◇ UNVERIFIED |
| TITri-State Industries of Tulsa LLC | Tulsa | 1–19 | ◇ UNVERIFIED |
| TMTulsa Machine Works, Tmw Holding, and Trident Investment Company, LLC | Tulsa | 1–19 | ◇ UNVERIFIED |
| TMTulsa Metal Fab INC. | Broken Arrow | 1–19 | ◇ UNVERIFIED |
| WMWar Metals, INC. | Tulsa | 1–19 | ◇ UNVERIFIED |