| U.t.r. Engineering Works Ltd. Liability Co Welding | Norfolk, CT | Welding | - |
| United Machining Service Inc Milling, Turning, Welding, Stamping, Finishing, Assembly · ISO 9001 | Orlando, FL | MillingTurningWeldingStampingFinishingAssembly | ISO 9001 |
| United Machining Services Inc Welding · ISO 9001, AS9100 | Conroe, TX | Welding | ISO 9001, AS9100 |
| Utrs Advanced Manufacturing LLC Welding · ISO 9001, CMMC | Marlton, NJ | Welding | ISO 9001, CMMC |
| Velocity Manufacturing Group, LLC Milling, Turning, Assembly | Mooresville, NC | MillingTurningAssembly | - |
| Volunteer Fastener and Supply, Inc Welding, Finishing · ISO 9001 | Vonore, TN | WeldingFinishing | ISO 9001 |
| Vorteque LLC Milling, Turning, Waterjet, Bending, Welding | Missoula, MT | MillingTurningWaterjetBendingWelding | - |
| Vroom Engineering & Manufacturing Inc Bending, Laser, Welding | Tucson, AZ | BendingLaserWelding | - |
| Wells Technology, Inc Milling, Turning, Swiss, Finishing · ISO 9001, NADCAP, ISO 13485 | Bemidji, MN | MillingTurningSwissFinishing | ISO 9001, NADCAP, ISO 13485 |
| Western Precision Products Inc Milling, Turning, Swiss · AS9100 | Tualatin, OR | MillingTurningSwiss | AS9100 |
| Wolfe Industrial, Inc Waterjet, Bending, Welding | La Vergne, TN | WaterjetBendingWelding | - |
| Wright Tool & Engineering Inc Milling, Turning, Bending, Welding, EDM, Grinding, Assembly · ISO 9001 | Piney Flats, TN | MillingTurningBendingWeldingEDMGrindingAssembly | ISO 9001 |
| Xyz Aerospace LLC Milling, Waterjet, Welding, Finishing · AS9100, ITAR | Melbourne, FL | MillingWaterjetWeldingFinishing | AS9100, ITAR |
| Zakobe LLC Stamping, EDM · ISO 9001, AS9100, ISO 13485 | Bovey, MN | StampingEDM | ISO 9001, AS9100, ISO 13485 |
| Zip Products Inc Milling, Turning, Swiss, Stamping, EDM, Grinding, Finishing, Assembly · ITAR | Rochester, NY | MillingTurningSwissStampingEDMGrindingFinishingAssembly | ITAR |