| TR Manufacturing, LLC Milling, Turning, Swiss, Laser, Waterjet, Welding, Finishing · CMMC | Garrett, IN | MillingTurningSwissLaserWaterjetWeldingFinishing | CMMC |
| Trace Technologies, LLC Milling, Finishing | Epping, NH | MillingFinishing | - |
| Tri-Jet Precision Cutting Services LLC Milling, Turning, Laser, Waterjet, Welding, Finishing · ISO 9001 | Palmer, AK | MillingTurningLaserWaterjetWeldingFinishing | ISO 9001 |
| Troupe Technologies LLC Milling, Turning, Laser, Waterjet, Punching, Welding, Finishing | Huntsville, AL | MillingTurningLaserWaterjetPunchingWeldingFinishing | - |
| Troy Innovative Instruments, Inc Milling, Turning, Swiss, Laser, Welding, EDM, Grinding, Finishing, Assembly · ISO 9001, ITAR, ISO 13485 | Middlefield, OH | MillingTurningSwissLaserWeldingEDMGrindingFinishingAssembly | ISO 9001, ITAR, ISO 13485 |
| Tru Form Precision Manufacturing Milling, Turning, Welding, EDM, Grinding, Finishing, Assembly · ISO 9001, ITAR, ISO 13485 | Plaistow, NH | MillingTurningWeldingEDMGrindingFinishingAssembly | ISO 9001, ITAR, ISO 13485 |
| True Precision Machining, Inc Milling, Turning, Swiss, Welding, Stamping, EDM, Grinding, Finishing · ISO 9001, AS9100, ITAR, CMMC | Buellton, CA | MillingTurningSwissWeldingStampingEDMGrindingFinishing | ISO 9001, AS9100, ITAR, CMMC |
| Trust Manufacturing LLC Milling, Turning, Waterjet, Bending, Forging, EDM, Grinding, Finishing | Euclid, OH | MillingTurningWaterjetBendingForgingEDMGrindingFinishing | - |
| Two M Precision Co. Inc Milling, Grinding, Finishing · ISO 9001 | Willoughby, OH | MillingGrindingFinishing | ISO 9001 |
| Uber Machining Services LLC Milling, Turning, Finishing | Pittsburgh, PA | MillingTurningFinishing | - |
| Unit Drop Forge Co Inc Milling, Welding, Forging, Finishing | Milwaukee, WI | MillingWeldingForgingFinishing | - |
| United Machining Service Inc Milling, Turning, Welding, Stamping, Finishing, Assembly · ISO 9001 | Orlando, FL | MillingTurningWeldingStampingFinishingAssembly | ISO 9001 |
| United Metal Fabricators, Inc Milling, Turning, Laser, Waterjet, Bending, Welding, Finishing, Assembly | Worcester, MA | MillingTurningLaserWaterjetBendingWeldingFinishingAssembly | - |
| US Aluminum Castings Milling, Turning, Casting, Grinding, Finishing, Assembly · ISO 9001, ITAR, NADCAP, IATF 16949 | Entiat, WA | MillingTurningCastingGrindingFinishingAssembly | ISO 9001, ITAR, NADCAP, IATF 16949 |
| V&G Dynamic Machine, LLC Milling, Turning, Grinding, Finishing, Assembly · ISO 9001, ITAR | Marble Falls, TX | MillingTurningGrindingFinishingAssembly | ISO 9001, ITAR |
| Valley Precision Inc Milling, Laser, Punching, Bending, Welding, Finishing · ISO 9001 | Waynesboro, VA | MillingLaserPunchingBendingWeldingFinishing | ISO 9001 |
| Vff-Metal Processing LLC Milling, Turning, EDM, Grinding, Finishing | Ellisville, MO | MillingTurningEDMGrindingFinishing | - |
| Viking Manufacturing, LLC Milling, Turning, Finishing · ISO 9001, ITAR | New Iberia, LA | MillingTurningFinishing | ISO 9001, ITAR |
| Vulcan Engineering & Manf Milling, Turning, Laser, Punching, Bending, Welding, Grinding, Finishing | Waldorf, MD | MillingTurningLaserPunchingBendingWeldingGrindingFinishing | - |
| W. G. Benjey, Inc Milling, Turning, Welding, Finishing | Alpena, MI | MillingTurningWeldingFinishing | - |
| Walco Tool & Engineering Corp Milling, Turning, Welding, Grinding, Finishing · ISO 9001 | Romeoville, IL | MillingTurningWeldingGrindingFinishing | ISO 9001 |
| Wells Technology, Inc Milling, Turning, Swiss, Finishing · ISO 9001, NADCAP, ISO 13485 | Bemidji, MN | MillingTurningSwissFinishing | ISO 9001, NADCAP, ISO 13485 |
| Werco Manufacturing Inc Milling, Turning, Laser, Bending, Welding, Finishing, Assembly · ISO 9001 | Broken Arrow, OK | MillingTurningLaserBendingWeldingFinishingAssembly | ISO 9001 |
| Whalley Precision Inc Milling, Turning, Welding, Grinding, Finishing, Assembly · ISO 9001, ITAR, CMMC | Southwick, MA | MillingTurningWeldingGrindingFinishingAssembly | ISO 9001, ITAR, CMMC |
| Whitmer Industries LLC Milling, Turning, Finishing · ISO 9001, ITAR | Baden, PA | MillingTurningFinishing | ISO 9001, ITAR |
| Withers Manufacturing, Inc Milling, Turning, Welding, Finishing | Tulsa, OK | MillingTurningWeldingFinishing | - |
| Wolverine Machine Products Company Milling, Turning, Waterjet, Welding, Grinding, Finishing · ISO 9001 | Holly, MI | MillingTurningWaterjetWeldingGrindingFinishing | ISO 9001 |
| Wpa Works LLC Milling, Turning, Swiss, EDM, Finishing · ISO 9001 | Elgin, IL | MillingTurningSwissEDMFinishing | ISO 9001 |
| Yakima Machine Milling, Turning, Finishing | Yakima, WA | MillingTurningFinishing | - |
| Yeager Manufacturing Technologies LLC Milling, Turning, Laser, Bending, Welding, Finishing | Winter Park, FL | MillingTurningLaserBendingWeldingFinishing | - |
| Zip Products Inc Milling, Turning, Swiss, Stamping, EDM, Grinding, Finishing, Assembly · ITAR | Rochester, NY | MillingTurningSwissStampingEDMGrindingFinishingAssembly | ITAR |
| 2a Constitution Manufacturing, LP Milling, Turning, Swiss | Pooler, GA | MillingTurningSwiss | - |
| 3 J Inc Milling · AS9100 | Wellington, CO | Milling | AS9100 |
| 3-D Machine Co Milling | Anaheim, CA | Milling | - |
| 360 Machine Shop Milling, Turning, Laser, Welding, Metal AM | Bloomington, IL | MillingTurningLaserWeldingMetal AM | - |
| 3D CNC Milling, EDM, Grinding | Hutchinson, MN | MillingEDMGrinding | - |
| 3dcam International Corp Milling, Casting, Assembly | Chatsworth, CA | MillingCastingAssembly | - |
| 3DX Industries Inc Milling, Turning, Swiss, Metal AM, Finishing, Assembly | Ferndale, WA | MillingTurningSwissMetal AMFinishingAssembly | - |
| 4-M Precision Industries Inc Milling, Turning, Laser, Bending, Welding, Stamping, Finishing · ISO 9001 | Auburn, NY | MillingTurningLaserBendingWeldingStampingFinishing | ISO 9001 |
| 425 Manufacturing Milling, Turning, Welding, EDM · ISO 9001 | Rockford, IL | MillingTurningWeldingEDM | ISO 9001 |
| 49 Precision LLC Milling, Grinding, Assembly | Annandale, VA | MillingGrindingAssembly | - |
| 5 Point Fabrication Milling, Bending, Laser, Welding | Green Bay, WI | MillingBendingLaserWelding | - |
| A & A Fabrication and Polishing Corporation Milling, Turning, Laser, Punching, Bending, Welding · ISO 9001, AS9100 | Montebello, CA | MillingTurningLaserPunchingBendingWelding | ISO 9001, AS9100 |
| A & A Industries, Inc Milling, Turning, Welding · ISO 9001, AS9100 | Peabody, MA | MillingTurningWelding | ISO 9001, AS9100 |
| A & D Precision Manufacturing Milling, Turning, Bending, Welding · ISO 9001, AS9100, ITAR | Anaheim, CA | MillingTurningBendingWelding | ISO 9001, AS9100, ITAR |
| A & G Machine, Inc Milling, Bending, Welding, Assembly · ISO 9001, AS9100 | Auburn, WA | MillingBendingWeldingAssembly | ISO 9001, AS9100 |
| A & M Engineering Inc Milling | Irwindale, CA | Milling | - |
| A & P Fabricating Solutions, LLC Milling, Turning, Bending, Laser, Welding | Appleton, WI | MillingTurningBendingLaserWelding | - |
| A B & F Sheet Metal Products Inc Milling, Turning, Waterjet, Bending, Welding, Finishing · AS9100, ITAR | Cheshire, CT | MillingTurningWaterjetBendingWeldingFinishing | AS9100, ITAR |
| A M Machine Co Inc Milling, Turning, Swiss, Grinding | Mooresville, IN | MillingTurningSwissGrinding | - |