| Toth Industries Inc Milling, Turning, Bending, Casting · ISO 9001 | Toledo, OH | MillingTurningBendingCasting | ISO 9001 |
| Trabuco Precision LLC Milling, Turning, Grinding · ISO 9001, AS9100 | Yorba Linda, CA | MillingTurningGrinding | ISO 9001, AS9100 |
| Trans Machine Technologies SC Milling, Turning, Bending, Laser, Welding, EDM, Casting · ISO 9001 | Greenville, SC | MillingTurningBendingLaserWeldingEDMCasting | ISO 9001 |
| Tri-State Tool Grinding Incorporated Milling, Grinding · ISO 9001 | Cincinnati, OH | MillingGrinding | ISO 9001 |
| Triangle Engineering Corp Milling, Turning, Grinding · ISO 9001, AS9100 | Indianapolis, IN | MillingTurningGrinding | ISO 9001, AS9100 |
| Triangle Precision Industries Inc Milling, Swiss, Laser, Waterjet, Bending, EDM · ISO 9001, ITAR | Dayton, OH | MillingSwissLaserWaterjetBendingEDM | ISO 9001, ITAR |
| Triax Precision Manufacturing LLC Milling, Turning, Swiss · ISO 9001 | Sarasota, FL | MillingTurningSwiss | ISO 9001 |
| Trio Metal Stamping, Inc Milling, Turning, Laser, Bending, Welding, Stamping, EDM, Grinding · ISO 9001, NADCAP | City Of Industry, CA | MillingTurningLaserBendingWeldingStampingEDMGrinding | ISO 9001, NADCAP |
| Turbo Machining LLC Milling, Welding · ISO 9001 | Allegany, NY | MillingWelding | ISO 9001 |
| Udash Corporation Milling, Laser, Waterjet, Welding, Stamping, Assembly · ISO 9001, AS9100 | Simi Valley, CA | MillingLaserWaterjetWeldingStampingAssembly | ISO 9001, AS9100 |
| Ultra-Tech Aerospace, Inc Milling, Welding, EDM, Grinding, Assembly · ISO 9001, AS9100, NADCAP | Kansas City, KS | MillingWeldingEDMGrindingAssembly | ISO 9001, AS9100, NADCAP |
| Unique Tool and Manufacturing Co Milling, EDM, Grinding · ISO 9001, AS9100 | Franklinville, NC | MillingEDMGrinding | ISO 9001, AS9100 |
| United Machine & Tool Milling, Turning, Laser, Welding · ISO 9001 | Goodlettsville, TN | MillingTurningLaserWelding | ISO 9001 |
| United Tool & Machine Corporation Milling, Waterjet, Stamping, EDM, Assembly · ISO 9001, ITAR | Lawrence, MA | MillingWaterjetStampingEDMAssembly | ISO 9001, ITAR |
| Unlimited Welding & Fabrication, LLC Milling, Laser, Waterjet, Bending, Welding · ISO 9001 | Ham Lake, MN | MillingLaserWaterjetBendingWelding | ISO 9001 |
| US Tower Corp Milling, Welding, Assembly · ISO 9001 | Woodlake, CA | MillingWeldingAssembly | ISO 9001 |
| USA Precision Machining Milling, Turning · ISO 9001 | Houston, TX | MillingTurning | ISO 9001 |
| Valley City Metal Products Milling, Turning, Laser, Stamping · ISO 9001 | Shelby, MI | MillingTurningLaserStamping | ISO 9001 |
| Valley Machining Co Milling, Turning, Welding, Grinding · ISO 9001, ITAR | Rock Valley, IA | MillingTurningWeldingGrinding | ISO 9001, ITAR |
| Vanermen Smith Products Inc Milling, Turning, Waterjet, Bending, Welding, Grinding, Assembly · ISO 9001 | Lansing, MI | MillingTurningWaterjetBendingWeldingGrindingAssembly | ISO 9001 |
| Vargo Tool & Die Inc Milling, Turning, Welding, Grinding · ISO 9001, AS9100 | Marinette, WI | MillingTurningWeldingGrinding | ISO 9001, AS9100 |
| Vector Technologies, Inc Milling, Waterjet, Welding, Grinding · ISO 9001, AS9100, ITAR | Winfield, KS | MillingWaterjetWeldingGrinding | ISO 9001, AS9100, ITAR |
| Velocity Machine, Inc Milling, Turning, Welding, Assembly · ISO 9001, ITAR, IATF 16949 | De Pere, WI | MillingTurningWeldingAssembly | ISO 9001, ITAR, IATF 16949 |
| Venango Machine Company, Inc Milling, Welding, Grinding · ISO 9001 | Wattsburg, PA | MillingWeldingGrinding | ISO 9001 |
| Vermont Aerospace Industries, LLC Milling, Turning, Assembly · ISO 9001, ITAR | Saint Johnsbury, VT | MillingTurningAssembly | ISO 9001, ITAR |
| Victor Enterprises Inc Milling, Turning · ISO 9001, AS9100 | Paducah, KY | MillingTurning | ISO 9001, AS9100 |
| W Machine Works Inc Milling, Turning, Assembly · ISO 9001, AS9100, ITAR | San Fernando, CA | MillingTurningAssembly | ISO 9001, AS9100, ITAR |
| Walerko Tool & Engineering Milling, Turning, Casting · ISO 9001, AS9100 | Elkhart, IN | MillingTurningCasting | ISO 9001, AS9100 |
| Washington Machine Works Milling, Turning, Bending, Welding · ISO 9001 | Seattle, WA | MillingTurningBendingWelding | ISO 9001 |
| Wayne Integrated Technologies Corp Milling, Bending, Welding, Assembly · ISO 9001, AS9100 | Edgewood, NY | MillingBendingWeldingAssembly | ISO 9001, AS9100 |
| Wesco Machine Products, Inc Milling, Turning, Welding · ISO 9001 | Muskego, WI | MillingTurningWelding | ISO 9001 |
| West Cobb Engineering Milling, Waterjet, Welding, Assembly · ISO 9001, AS9100 | Douglasville, GA | MillingWaterjetWeldingAssembly | ISO 9001, AS9100 |
| West Michigan Precision Machining Milling, Turning, Bending · ISO 9001, AS9100, ITAR | Walker, MI | MillingTurningBending | ISO 9001, AS9100, ITAR |
| Westcoast Precision, Inc Milling, Turning, Assembly · ISO 9001, AS9100, ITAR | San Jose, CA | MillingTurningAssembly | ISO 9001, AS9100, ITAR |
| Whelan Machine & Tool, LLC Milling, Welding · ISO 9001, ITAR, CMMC | Louisville, KY | MillingWelding | ISO 9001, ITAR, CMMC |
| Whitworth Tool Holdings LLC Milling, Turning, Stamping · ISO 9001, ITAR | Hardinsburg, KY | MillingTurningStamping | ISO 9001, ITAR |
| Wilco Industries Inc Milling, Turning · ISO 9001, AS9100 | Ronkonkoma, NY | MillingTurning | ISO 9001, AS9100 |
| Witco Inc Milling, Turning, Grinding · ISO 9001, AS9100, ITAR, NADCAP | Greenwood, MI | MillingTurningGrinding | ISO 9001, AS9100, ITAR, NADCAP |
| Wright Tool & Engineering Inc Milling, Turning, Bending, Welding, EDM, Grinding, Assembly · ISO 9001 | Piney Flats, TN | MillingTurningBendingWeldingEDMGrindingAssembly | ISO 9001 |
| Xact Wire EDM Corp Milling, Stamping, EDM · ISO 9001 | Waukesha, WI | MillingStampingEDM | ISO 9001 |
| Yampa Precision Manufacturing, Inc Milling, Turning, Swiss, EDM · ISO 9001, AS9100 | Prescott Valley, AZ | MillingTurningSwissEDM | ISO 9001, AS9100 |
| Yeamans Machine Shop, Inc Milling, Turning, Welding, Assembly · ISO 9001 | Los Alamos, NM | MillingTurningWeldingAssembly | ISO 9001 |
| Zeco Machine Inc Milling, Turning, Welding, EDM · ISO 9001, AS9100 | Guthrie, OK | MillingTurningWeldingEDM | ISO 9001, AS9100 |
| Zober Industries, Inc Milling, Turning, Welding, EDM, Assembly · ISO 9001, ISO 13485 | Croydon, PA | MillingTurningWeldingEDMAssembly | ISO 9001, ISO 13485 |
| Accu-Grind & Mfg. Co. Inc Milling, Turning, Welding, Grinding, Finishing · ISO 9001 | Dayton, OH | MillingTurningWeldingGrindingFinishing | ISO 9001 |
| Advanced Metals Machining LLC Milling, Finishing | Olyphant, PA | MillingFinishing | - |
| Advent Precision Inc Milling, EDM · ISO 9001 | Indianapolis, IN | MillingEDM | ISO 9001 |
| All Time Machine Inc Milling, Turning, Finishing · AS9100 | Ontario, CA | MillingTurningFinishing | AS9100 |
| Charlie Mike Manufacturing LLC Milling, Turning, Laser, Bending, Welding, Stamping, EDM, Finishing | Oakdale, PA | MillingTurningLaserBendingWeldingStampingEDMFinishing | - |
| Dimensional Swiss Products, Inc Milling, Turning, Swiss · ISO 9001 | Huntingdon, TN | MillingTurningSwiss | ISO 9001 |