| Midway Machine & Instrument Company Inc Milling, Turning, EDM, Finishing · ISO 9001 | South Houston, TX | MillingTurningEDMFinishing | ISO 9001 |
| Multi-Machining Co Inc Milling, Turning, Finishing, Assembly | Greenville, TX | MillingTurningFinishingAssembly | - |
| Multiplex Machining Milling, Turning · AS9100 | Houston, TX | MillingTurning | AS9100 |
| Oscar's Custom Iron Works Welding | San Antonio, TX | Welding | - |
| P & N Machine Co, Inc Milling, Turning, Swiss, Laser, Welding, EDM, Finishing · ISO 9001, ITAR, ISO 13485 | Houston, TX | MillingTurningSwissLaserWeldingEDMFinishing | ISO 9001, ITAR, ISO 13485 |
| Padgett Machine Tools Co Inc Milling, Turning, Stamping, Finishing · AS9100 | Gatesville, TX | MillingTurningStampingFinishing | AS9100 |
| Paligen Technologies Welding, Forging | Garland, TX | WeldingForging | - |
| PDQ Machine Shop, Inc Milling, Turning · ISO 9001 | Houston, TX | MillingTurning | ISO 9001 |
| Performance Aluminum Fabrication Milling, Bending, Laser, Welding, Waterjet | Houston, TX | MillingBendingLaserWeldingWaterjet | - |
| R&H Machine Milling, Welding · ISO 9001 | Longview, TX | MillingWelding | ISO 9001 |
| Red Cliff Precision LLC Milling, Turning · ITAR | Spring, TX | MillingTurning | ITAR |
| Reinhardt Fabrication Laser, Welding | Dallas, TX | LaserWelding | - |
| Reneau Machine Works LLC Milling, Turning | Bryan, TX | MillingTurning | - |
| Resivine LLC Milling, Turning, Waterjet, EDM, Grinding | Houston, TX | MillingTurningWaterjetEDMGrinding | - |
| Rigid Concepts LLC Milling, Turning, Finishing · ISO 9001, ITAR | Van Alstyne, TX | MillingTurningFinishing | ISO 9001, ITAR |
| Rogue Precision Manufacturing LLC Milling, Turning | Tomball, TX | MillingTurning | - |
| Rosado Welding Inc. Welding | Dallas, TX | Welding | - |
| S & S Machine Inc Milling, Turning, Waterjet, Punching, Bending, Welding, Assembly · ISO 9001, AS9100, ITAR | Irving, TX | MillingTurningWaterjetPunchingBendingWeldingAssembly | ISO 9001, AS9100, ITAR |
| SF Industries USA Laser, Bending, Welding | Brenham, TX | LaserBendingWelding | - |
| Shamrock Precision Milling, Turning, Bending · ISO 9001, AS9100 | Dallas, TX | MillingTurningBending | ISO 9001, AS9100 |
| Silver Creek Machine Ltd Milling, Turning, Bending, Finishing · ISO 9001 | Fort Worth, TX | MillingTurningBendingFinishing | ISO 9001 |
| SLT Machine Works LLC Milling, Turning · ISO 9001, AS9100 | Stafford, TX | MillingTurning | ISO 9001, AS9100 |
| Smi Metal Precision LLC Milling | Houston, TX | Milling | - |
| SMS Precision Tech, LLC Waterjet, Welding, EDM · ISO 9001 | Tomball, TX | WaterjetWeldingEDM | ISO 9001 |
| Snoe, Inc. Machining & Welding Milling, Turning, Welding · ISO 9001 | Caldwell, TX | MillingTurningWelding | ISO 9001 |
| South Austin Metals Bending, Welding | Austin, TX | BendingWelding | - |
| Spartan Machine LLC Milling, Turning | Spring, TX | MillingTurning | - |
| Specialty Machine Milling, Turning, Swiss, Laser, Bending, Welding, EDM, Grinding, Assembly · ISO 9001, AS9100, ITAR | Lago Vista, TX | MillingTurningSwissLaserBendingWeldingEDMGrindingAssembly | ISO 9001, AS9100, ITAR |
| Starke Machine Co Milling, Turning · ISO 9001, AS9100, ITAR | Fort Worth, TX | MillingTurning | ISO 9001, AS9100, ITAR |
| Steel Specialties Inc. Welding | El Paso, TX | Welding | - |
| Steeltron Metal Works Bending, Welding | San Antonio, TX | BendingWelding | - |
| 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 |
| Swissomation Inc Milling · ISO 9001, ITAR | Fredericksburg, TX | Milling | ISO 9001, ITAR |
| T F E Company Inc Milling, Turning, Laser, Casting · ITAR | Brenham, TX | MillingTurningLaserCasting | ITAR |
| Tamra Group Inc Laser, Welding | Mansfield, TX | LaserWelding | - |
| Texarkana Machine Inc Milling, Turning, Waterjet, Welding, Grinding, Finishing | Texarkana, TX | MillingTurningWaterjetWeldingGrindingFinishing | - |
| Texoma Industries of Graham, LLC Milling, Turning, Bending, Welding | Graham, TX | MillingTurningBendingWelding | - |
| Thompson-Mathis Metal Mfg. Bending, Welding | Dallas, TX | BendingWelding | - |
| Tico Tooling LLC Milling, Turning, Stamping, EDM, Grinding · ISO 9001 | San Marcos, TX | MillingTurningStampingEDMGrinding | ISO 9001 |
| Tiger Industrial Inc Milling, Turning, Laser | Spicewood, TX | MillingTurningLaser | - |
| Toolex Inc Milling, Turning | Houston, TX | MillingTurning | - |
| Top Notch EDM Service LLC Milling, Welding, EDM | Conroe, TX | MillingWeldingEDM | - |
| Trans Tec Machine Laser, Welding, Waterjet · ISO 9001, AS9100 | Houston, TX | LaserWeldingWaterjet | ISO 9001, AS9100 |
| Trinity Forge Inc Milling, Turning, Welding, Forging, Assembly · ISO 9001 | Mansfield, TX | MillingTurningWeldingForgingAssembly | ISO 9001 |
| Turnamatic Machine Inc Milling, Turning, Swiss, EDM, Assembly · ISO 9001 | Richardson, TX | MillingTurningSwissEDMAssembly | ISO 9001 |
| Ultimate Precision Tech Milling, Turning, EDM | Houston, TX | MillingTurningEDM | - |
| United Machining Services Inc Welding · ISO 9001, AS9100 | Conroe, TX | Welding | ISO 9001, AS9100 |
| Unity Fabrication LLC Milling, Turning | Houston, TX | MillingTurning | - |