| Port City Metal Services Milling, Welding | Tulsa, OK | MillingWelding | - |
| Velocity Custom Fabrication Milling, Bending, Laser, Welding | Tulsa, OK | MillingBendingLaserWelding | - |
| Critical Components-Oil & Gas Milling, Turning, Welding, Metal AM, Finishing | Oklahoma City, OK | MillingTurningWeldingMetal AMFinishing | - |
| Applied Industrial Machining Milling, Turning, Welding · AS9100 | Oklahoma City, OK | MillingTurningWelding | 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 |
| Council Stainless & Sheet Metal Bending, Welding, Waterjet | Oklahoma City, OK | BendingWeldingWaterjet | - |
| Fundom Enterprises Inc Milling, Turning, EDM, Grinding | Oklahoma City, OK | MillingTurningEDMGrinding | - |
| K & B Machining Inc Milling, Turning, Laser, Grinding, Finishing · ISO 9001, ITAR | Claremore, OK | MillingTurningLaserGrindingFinishing | ISO 9001, ITAR |
| Legion Metals Welding | Oklahoma City, OK | Welding | - |
| Neosource, Inc. Milling, Welding, Waterjet · ISO 9001, AS9100 | Tulsa, OK | MillingWeldingWaterjet | ISO 9001, AS9100 |
| Professional Machining Inc Milling, Turning | Oklahoma City, OK | MillingTurning | - |
| Revolution Precision Machining LLC Swiss, Grinding, Finishing · ISO 9001, AS9100 | Tulsa, OK | SwissGrindingFinishing | ISO 9001, AS9100 |
| Wildman Manufacturing, Inc. Milling, Turning, Bending, Welding | Oklahoma City, OK | MillingTurningBendingWelding | - |
| Zeco Machine Inc Milling, Turning, Welding, EDM · ISO 9001, AS9100 | Guthrie, OK | MillingTurningWeldingEDM | ISO 9001, AS9100 |