| ACS Steel Company Milling, Turning, Bending, Welding | Tulsa, OK | MillingTurningBendingWelding | - |
| Council Stainless & Sheet Metal Bending, Welding, Waterjet | Oklahoma City, OK | BendingWeldingWaterjet | - |
| Velocity Custom Fabrication Milling, Bending, Laser, Welding | Tulsa, OK | MillingBendingLaserWelding | - |
| Applied Industrial Machining Milling, Turning, Welding · AS9100 | Oklahoma City, OK | MillingTurningWelding | AS9100 |
| Custom Metal Works Milling, Bending, Welding | Tulsa, OK | MillingBendingWelding | - |
| Midwest Precision Inc Bending, Laser, Welding, Waterjet · ISO 9001 | Tulsa, OK | BendingLaserWeldingWaterjet | ISO 9001 |
| Ozark Steel Llc Milling, Bending, Laser, Welding · ISO 9001 | Tulsa, OK | MillingBendingLaserWelding | ISO 9001 |
| Wiemann Metalcraft Bending, Laser, Welding, Casting | Tulsa, OK | BendingLaserWeldingCasting | - |
| B & C Machine Welding, Waterjet | Oklahoma City, OK | WeldingWaterjet | - |
| Bauman Machine Inc Milling, Turning, Laser, Welding · ISO 9001 | Oklahoma City, OK | MillingTurningLaserWelding | ISO 9001 |
| D & D Design & Manufacturing Inc Milling, Turning, Bending, Laser, Welding | Oklahoma City, OK | MillingTurningBendingLaserWelding | - |
| Fabrication Solutions Bending, Laser, Welding | Tulsa, OK | BendingLaserWelding | - |
| Neosource, Inc. Milling, Welding, Waterjet · ISO 9001, AS9100 | Tulsa, OK | MillingWeldingWaterjet | ISO 9001, AS9100 |
| Port City Metal Services Milling, Welding | Tulsa, OK | MillingWelding | - |
| Slim Haney Machining Inc Milling, Turning, Welding | Tulsa, OK | MillingTurningWelding | - |
| TCMS Inc Milling, Turning, Welding | Oklahoma City, OK | MillingTurningWelding | - |
| Turner Machine Co Inc Milling, Turning, Welding | Tulsa, OK | MillingTurningWelding | - |
| Wildman Manufacturing, Inc. Milling, Turning, Bending, Welding | Oklahoma City, OK | MillingTurningBendingWelding | - |