| N & S Flame Spray, LLC Milling, Turning, Welding, Grinding | Mannford, OK | MillingTurningWeldingGrinding | - |
| Neosource, Inc. Milling, Welding, Waterjet · ISO 9001, AS9100 | Tulsa, OK | MillingWeldingWaterjet | ISO 9001, AS9100 |
| NMB Manufacturing LLC Milling, Turning, Bending, Welding | Bixby, OK | MillingTurningBendingWelding | - |
| Aero Component Repair, LLC Welding, Grinding, Finishing | Durant, OK | WeldingGrindingFinishing | - |
| Auto-Turn Acquisition, LLC Milling, Turning, Welding, Stamping, Grinding, Finishing · ISO 9001, AS9100 | Tulsa, OK | MillingTurningWeldingStampingGrindingFinishing | ISO 9001, AS9100 |
| B & C Machine Welding, Waterjet | Oklahoma City, OK | WeldingWaterjet | - |
| Bauman Machine Inc Milling, Turning, Laser, Welding · ISO 9001 | Oklahoma City, OK | MillingTurningLaserWelding | ISO 9001 |
| BT Machine Inc Milling, Turning, Welding, Finishing · ISO 9001, AS9100, ITAR | Tulsa, OK | MillingTurningWeldingFinishing | ISO 9001, AS9100, ITAR |
| Cherry Creek Machine, LLC Milling, Turning, Waterjet, Welding · ISO 9001 | Tulsa, OK | MillingTurningWaterjetWelding | ISO 9001 |
| Coanda Company LLC, the Milling, Turning, Waterjet, Welding · ISO 9001, AS9100 | Shawnee, OK | MillingTurningWaterjetWelding | ISO 9001, AS9100 |
| Council Stainless & Sheet Metal Bending, Welding, Waterjet | Oklahoma City, OK | BendingWeldingWaterjet | - |
| D & D Design & Manufacturing Inc Milling, Turning, Bending, Laser, Welding | Oklahoma City, OK | MillingTurningBendingLaserWelding | - |
| L. E. F., Inc Milling, Laser, Bending, Welding, Stamping, Finishing | Tulsa, OK | MillingLaserBendingWeldingStampingFinishing | - |
| Legion Metals Welding | Oklahoma City, OK | Welding | - |
| Manufacturing Solutions LLC Milling, Turning, Welding, Finishing | Tulsa, OK | MillingTurningWeldingFinishing | - |
| Mimic Manufacturing, LLC Welding, Finishing | Heavener, OK | WeldingFinishing | - |
| PT Coupling Milling, Turning, Welding, Casting, Grinding, Finishing · ISO 9001 | Enid, OK | MillingTurningWeldingCastingGrindingFinishing | ISO 9001 |
| Slim Haney Machining Inc Milling, Turning, Welding | Tulsa, OK | MillingTurningWelding | - |
| TCMS Inc Milling, Turning, Welding | Oklahoma City, OK | MillingTurningWelding | - |
| Velocity Custom Fabrication Milling, Bending, Laser, Welding | Tulsa, OK | MillingBendingLaserWelding | - |
| Wildman Manufacturing, Inc. Milling, Turning, Bending, Welding | Oklahoma City, OK | MillingTurningBendingWelding | - |
| Withers Manufacturing, Inc Milling, Turning, Welding, Finishing | Tulsa, OK | MillingTurningWeldingFinishing | - |
| Zeco Machine Inc Milling, Turning, Welding, EDM · ISO 9001, AS9100 | Guthrie, OK | MillingTurningWeldingEDM | ISO 9001, AS9100 |
| Boardman Inc. Bending, Welding | Oklahoma City, OK | BendingWelding | - |
| Cimarron Machine Services Inc Milling, Turning, Welding | Tulsa, OK | MillingTurningWelding | - |
| GenX Machine Technologies Milling, Turning, Welding · AS9100 | Tulsa, OK | MillingTurningWelding | AS9100 |
| ACS Steel Company Milling, Turning, Bending, Welding | Tulsa, OK | MillingTurningBendingWelding | - |
| Advanced Machining Solutions Milling, Turning, Welding | Oklahoma City, OK | MillingTurningWelding | - |
| Amp Precision Metal LLC Bending, Welding | Ada, OK | BendingWelding | - |
| Applied Industrial Machining Milling, Turning, Welding · AS9100 | Oklahoma City, OK | MillingTurningWelding | AS9100 |
| Blue Arc Metal Specialties, Inc Bending, Welding, Finishing | Claremore, OK | BendingWeldingFinishing | - |
| Critical Components-Oil & Gas Milling, Turning, Welding, Metal AM, Finishing | Oklahoma City, OK | MillingTurningWeldingMetal AMFinishing | - |
| Fabrication Solutions Bending, Laser, Welding | Tulsa, OK | BendingLaserWelding | - |
| Midwest Precision Inc Bending, Laser, Welding, Waterjet · ISO 9001 | Tulsa, OK | BendingLaserWeldingWaterjet | ISO 9001 |
| MST Manufacturing LLC Milling, Turning, Bending, Welding, Assembly · ISO 9001, AS9100, ITAR, CMMC | Claremore, OK | MillingTurningBendingWeldingAssembly | ISO 9001, AS9100, ITAR, CMMC |
| Sawyer Manufacturing Company Turning, Welding, Finishing | Tulsa, OK | TurningWeldingFinishing | - |
| Turner Machine Co Inc Milling, Turning, Welding | Tulsa, OK | MillingTurningWelding | - |
| Werco Manufacturing Inc Milling, Turning, Laser, Bending, Welding, Finishing, Assembly · ISO 9001 | Broken Arrow, OK | MillingTurningLaserBendingWeldingFinishingAssembly | ISO 9001 |
| Wiemann Metalcraft Bending, Laser, Welding, Casting | Tulsa, OK | BendingLaserWeldingCasting | - |
| Custom Metal Works Milling, Bending, Welding | Tulsa, OK | MillingBendingWelding | - |
| Ko Laser Milling, Turning, Laser, Bending, Welding | Tulsa, OK | MillingTurningLaserBendingWelding | - |
| Ozark Steel Llc Milling, Bending, Laser, Welding · ISO 9001 | Tulsa, OK | MillingBendingLaserWelding | ISO 9001 |
| Port City Metal Services Milling, Welding | Tulsa, OK | MillingWelding | - |
| Helix Metalworks Turning, Welding | Tulsa, OK | TurningWelding | - |