| Strickland Industries Milling, Turning, Laser, Bending, Welding, Assembly | Mansfield, TX | MillingTurningLaserBendingWeldingAssembly | - |
| Striking Precision Welding & Fabrication Milling, Bending, Welding · ISO 9001, ITAR | Cedar Park, TX | MillingBendingWelding | ISO 9001, ITAR |
| Superior Machining and Fabrication Inc Milling, Turning, Grinding, Assembly · ISO 9001, AS9100, ITAR | Muenster, TX | MillingTurningGrindingAssembly | ISO 9001, AS9100, ITAR |
| T F E Company Inc Milling, Turning, Laser, Casting · ITAR | Brenham, TX | MillingTurningLaserCasting | ITAR |
| Texas Metal Specialty Co Laser, Welding, Waterjet | Houston, TX | LaserWeldingWaterjet | - |
| Texas Sheet Metal Bending, Welding | San Antonio, TX | BendingWelding | - |
| Thompson-Mathis Metal Mfg. Bending, Welding | Dallas, TX | BendingWelding | - |
| Tiger Industrial Inc Milling, Turning, Laser | Spicewood, TX | MillingTurningLaser | - |
| Trinity Forge Inc Milling, Turning, Welding, Forging, Assembly · ISO 9001 | Mansfield, TX | MillingTurningWeldingForgingAssembly | ISO 9001 |
| Ultimate Precision Tech Milling, Turning, EDM | Houston, TX | MillingTurningEDM | - |
| USA Machine Inc Milling, Assembly · AS9100 | Royse City, TX | MillingAssembly | AS9100 |
| V&G Dynamic Machine, LLC Milling, Turning, Grinding, Finishing, Assembly · ISO 9001, ITAR | Marble Falls, TX | MillingTurningGrindingFinishingAssembly | ISO 9001, ITAR |
| Vargas Manufacturing Inc Milling, Turning, Swiss · ISO 9001 | El Paso, TX | MillingTurningSwiss | ISO 9001 |
| Wire-Tech MFG Milling, Turning, Welding, Stamping, EDM, Grinding | San Antonio, TX | MillingTurningWeldingStampingEDMGrinding | - |
| Worldwide Instrument Parts Co Milling, Turning, EDM, Finishing · ISO 9001 | Livingston, TX | MillingTurningEDMFinishing | ISO 9001 |