| Spectrum Custom Molds & Manufacturing, Inc Milling, Turning, Laser, Welding, EDM, Grinding, Finishing, Assembly · ISO 9001 | Palmetto, FL | MillingTurningLaserWeldingEDMGrindingFinishingAssembly | ISO 9001 |
| Srpm Inc Milling, Turning, Assembly · ISO 9001, ITAR | Solon, OH | MillingTurningAssembly | ISO 9001, ITAR |
| Stanley Spring and Stamping Corp Laser, Bending, Stamping, Assembly | Chicago, IL | LaserBendingStampingAssembly | - |
| Stever Locke, Inc Turning, Stamping, Grinding, Finishing, Assembly · ISO 9001, AS9100, ITAR | Honeoye Falls, NY | TurningStampingGrindingFinishingAssembly | ISO 9001, AS9100, ITAR |
| Strom Manufacturing, LLC Milling, Turning, Finishing, Assembly · ISO 9001 | North Plains, OR | MillingTurningFinishingAssembly | ISO 9001 |
| Sunset Industries Inc Milling, Turning, Swiss, Casting, EDM, Grinding, Finishing, Assembly · ISO 9001, AS9100, ITAR, CMMC | Mentor, OH | MillingTurningSwissCastingEDMGrindingFinishingAssembly | ISO 9001, AS9100, ITAR, CMMC |
| Swiss Productions, Inc Milling, Turning, Assembly · ISO 9001 | Liberty Lake, WA | MillingTurningAssembly | ISO 9001 |
| Swiss Screw Products Inc Milling, Turning, Swiss, Grinding, Assembly · ISO 9001 | Santa Clara, CA | MillingTurningSwissGrindingAssembly | ISO 9001 |
| Systems Powered Manufacturing, LLC Grinding, Finishing, Assembly | Saint Charles, IL | GrindingFinishingAssembly | - |
| Tampa Brass and Aluminum Corporation Milling, Turning, Welding, Casting, Assembly | Tampa, FL | MillingTurningWeldingCastingAssembly | - |
| Technimetal Precision Industries Corp Laser, Assembly | Hauppauge, NY | LaserAssembly | - |
| The Flinchbaugh Company, Inc Milling, Turning, Welding, EDM, Grinding, Finishing, Assembly | Manchester, PA | MillingTurningWeldingEDMGrindingFinishingAssembly | - |
| Three Rivers Precision, LLC Welding, Assembly · ISO 9001 | East Liberty, PA | WeldingAssembly | ISO 9001 |
| Tis Aerospace LLC Milling, Turning, Waterjet, Punching, Welding, Stamping, Assembly | Cinnaminson, NJ | MillingTurningWaterjetPunchingWeldingStampingAssembly | - |
| TMF Inc Milling, Turning, Welding, Finishing, Assembly · ISO 9001, AS9100, ITAR, NADCAP | Poulsbo, WA | MillingTurningWeldingFinishingAssembly | ISO 9001, AS9100, ITAR, NADCAP |
| TMS Inc Milling, Laser, Punching, Bending, Welding, Grinding, Finishing, Assembly | New Berlin, WI | MillingLaserPunchingBendingWeldingGrindingFinishingAssembly | - |
| Top Notch Machining, Inc Milling, Waterjet, Stamping, Finishing, Assembly · ISO 9001 | Gresham, OR | MillingWaterjetStampingFinishingAssembly | ISO 9001 |
| Top Precision Milling, Turning, Assembly · ISO 9001, ITAR | San Luis Obispo, CA | MillingTurningAssembly | ISO 9001, ITAR |
| Treske Precision Machining Inc Milling, Assembly | Sherwood, OR | MillingAssembly | - |
| Triad Tool & Die Co Milling, Turning, Waterjet, Welding, EDM, Grinding, Finishing, Assembly · ISO 9001, AS9100, NADCAP | Somerville, NJ | MillingTurningWaterjetWeldingEDMGrindingFinishingAssembly | ISO 9001, AS9100, NADCAP |
| Tridecs Corp Milling, Swiss, EDM, Grinding, Finishing, Assembly · ISO 9001 | Hayward, CA | MillingSwissEDMGrindingFinishingAssembly | ISO 9001 |
| Trident Precision Manufacturing Inc Welding, Stamping, Finishing, Assembly · ISO 9001, AS9100, ITAR, ISO 13485 | Webster, NY | WeldingStampingFinishingAssembly | ISO 9001, AS9100, ITAR, ISO 13485 |
| Trinity Forge Inc Milling, Turning, Welding, Forging, Assembly · ISO 9001 | Mansfield, TX | MillingTurningWeldingForgingAssembly | ISO 9001 |
| 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 |
| U.S. Fabricating LLC Assembly | Naugatuck, CT | Assembly | - |
| United Tool & Machine Corporation Milling, Waterjet, Stamping, EDM, Assembly · ISO 9001, ITAR | Lawrence, MA | MillingWaterjetStampingEDMAssembly | ISO 9001, ITAR |
| US Aluminum Castings Milling, Turning, Casting, Grinding, Finishing, Assembly · ISO 9001, ITAR, NADCAP, IATF 16949 | Entiat, WA | MillingTurningCastingGrindingFinishingAssembly | ISO 9001, ITAR, NADCAP, IATF 16949 |
| USA Machine Inc Milling, Assembly · AS9100 | Royse City, TX | MillingAssembly | AS9100 |
| Usher Precision Manufacturing Milling, Turning, Laser, Welding, Assembly | Forest Grove, OR | MillingTurningLaserWeldingAssembly | - |
| V&G Dynamic Machine, LLC Milling, Turning, Grinding, Finishing, Assembly · ISO 9001, ITAR | Marble Falls, TX | MillingTurningGrindingFinishingAssembly | ISO 9001, ITAR |
| Valley Tool and Manufacturing LLC Milling, Turning, Waterjet, Bending, Welding, EDM, Assembly · NADCAP | Milford, CT | MillingTurningWaterjetBendingWeldingEDMAssembly | NADCAP |
| Venture Industrial Products Inc Welding, Assembly | Lees Summit, MO | WeldingAssembly | - |
| Viewpoint Manufacturing, LLC Milling, Laser, Punching, Welding, EDM, Assembly | Houston, TX | MillingLaserPunchingWeldingEDMAssembly | - |
| W Machine Works Inc Milling, Turning, Assembly · ISO 9001, AS9100, ITAR | San Fernando, CA | MillingTurningAssembly | ISO 9001, AS9100, ITAR |
| W.C. Machine and Tool, Inc Milling, Waterjet, Punching, Welding, EDM, Grinding, Assembly | Chandler, AZ | MillingWaterjetPunchingWeldingEDMGrindingAssembly | - |
| Wal-Tek Industries, Inc Milling, Turning, Laser, Welding, Finishing, Assembly · ISO 9001, AS9100, ITAR | Phoenix, AZ | MillingTurningLaserWeldingFinishingAssembly | ISO 9001, AS9100, ITAR |
| Walker West LLC Bending, Welding, Stamping, Assembly | Ontario, CA | BendingWeldingStampingAssembly | - |
| Werco Manufacturing Inc Milling, Turning, Laser, Bending, Welding, Finishing, Assembly · ISO 9001 | Broken Arrow, OK | MillingTurningLaserBendingWeldingFinishingAssembly | ISO 9001 |
| West Engineering Co Inc Milling, Bending, Welding, EDM, Grinding, Assembly | Ashland, VA | MillingBendingWeldingEDMGrindingAssembly | - |
| Western Industrial Machining Inc Milling, Laser, Welding, Assembly | Hampstead, MD | MillingLaserWeldingAssembly | - |
| Wire Works EDM Inc Milling, Turning, Welding, EDM, Assembly · CMMC | Santa Ana, CA | MillingTurningWeldingEDMAssembly | CMMC |
| Wisconsin Plating Works of Racine, Inc Finishing, Assembly · ISO 9001 | Racine, WI | FinishingAssembly | ISO 9001 |
| Wright Tool & Engineering Inc Milling, Turning, Bending, Welding, EDM, Grinding, Assembly · ISO 9001 | Piney Flats, TN | MillingTurningBendingWeldingEDMGrindingAssembly | ISO 9001 |
| Yeamans Machine Shop, Inc Milling, Turning, Welding, Assembly · ISO 9001 | Los Alamos, NM | MillingTurningWeldingAssembly | ISO 9001 |
| Zip Products Inc Milling, Turning, Swiss, Stamping, EDM, Grinding, Finishing, Assembly · ITAR | Rochester, NY | MillingTurningSwissStampingEDMGrindingFinishingAssembly | ITAR |
| Zyxaxis Inc Milling, Welding, EDM, Grinding, Assembly · AS9100, ITAR | Wichita, KS | MillingWeldingEDMGrindingAssembly | AS9100, ITAR |