| Swiss Technologies Inc. Milling, Turning, Welding, Stamping · ISO 9001 | Knoxville, TN | MillingTurningWeldingStamping | ISO 9001 |
| Swiss Wire EDM Milling, Turning, Welding, EDM · ISO 9001, ITAR, NADCAP | Costa Mesa, CA | MillingTurningWeldingEDM | ISO 9001, ITAR, NADCAP |
| Swiss-Tech LLC Milling, Turning, Swiss, Grinding, Finishing | Delavan, WI | MillingTurningSwissGrindingFinishing | - |
| Swissturn/usa, Inc Milling, Turning, Swiss, Grinding, Finishing · ISO 9001, ITAR, CMMC | Oxford, MA | MillingTurningSwissGrindingFinishing | ISO 9001, ITAR, CMMC |
| Tennessee Tool Works LLC Milling, Turning, Laser, Waterjet, Bending, Welding, Stamping, EDM, Grinding | Murfreesboro, TN | MillingTurningLaserWaterjetBendingWeldingStampingEDMGrinding | - |
| Thomas W Springer Inc Milling, Turning, Swiss, Welding, Grinding · ISO 9001 | Landenberg, PA | MillingTurningSwissWeldingGrinding | ISO 9001 |
| Titletown Manufacturing LLC Milling, Welding | Green Bay, WI | MillingWelding | - |
| TWH Enterprises, LLC Milling, Finishing · ISO 9001, AS9100 | Batesville, AR | MillingFinishing | ISO 9001, AS9100 |
| United Western Industries Inc. Milling, Bending, Laser, Welding, Stamping · IATF 16949 | Fresno, CA | MillingBendingLaserWeldingStamping | IATF 16949 |
| Unlimited Welding & Fabrication, LLC Milling, Laser, Waterjet, Bending, Welding · ISO 9001 | Ham Lake, MN | MillingLaserWaterjetBendingWelding | ISO 9001 |
| Viewpoint Manufacturing, LLC Milling, Laser, Punching, Welding, EDM, Assembly | Houston, TX | MillingLaserPunchingWeldingEDMAssembly | - |
| W. G. Benjey, Inc Milling, Turning, Welding, Finishing | Alpena, MI | MillingTurningWeldingFinishing | - |
| Warner Tool Co Inc Milling, Stamping, Grinding | North Swanzey, NH | MillingStampingGrinding | - |
| Wrightwood Precision Products Company Milling, Turning | Chicago, IL | MillingTurning | - |
| Abwey Machine & Die Co Inc Milling, Grinding, Assembly | Pembroke, MA | MillingGrindingAssembly | - |
| Advanced Machine Inc Milling, Turning, Welding, EDM, Grinding, Finishing, Assembly · ISO 9001, AS9100, ITAR, ISO 13485 | Winchester, TN | MillingTurningWeldingEDMGrindingFinishingAssembly | ISO 9001, AS9100, ITAR, ISO 13485 |
| Aether Flow Technologies LLC Milling | Everett, WA | Milling | - |
| Allied Precision Components LLC Milling, Turning, Swiss | Wallingford, CT | MillingTurningSwiss | - |
| Allied Technologies Milling, Turning, Swiss · ITAR, ISO 13485 | Wilsonville, OR | MillingTurningSwiss | ITAR, ISO 13485 |
| Alpha Foundry Co Milling, Turning, Casting, Finishing | Wright City, MO | MillingTurningCastingFinishing | - |
| American Machining Solutions Inc Milling, Turning, Swiss, EDM, Grinding · ISO 9001, AS9100 | Willow Spring, NC | MillingTurningSwissEDMGrinding | ISO 9001, AS9100 |
| American Metal Works Milling | Pikeville, KY | Milling | - |
| Arrow Automotive Milling, Turning, Grinding, Assembly · IATF 16949 | Grand Rapids, MI | MillingTurningGrindingAssembly | IATF 16949 |
| Arrowtech Machine Works Milling, Turning, Grinding | Eugene, OR | MillingTurningGrinding | - |
| Axion Labs Inc Milling, Turning, Finishing · ISO 9001, AS9100, ITAR, ISO 13485 | Westlake, OH | MillingTurningFinishing | ISO 9001, AS9100, ITAR, ISO 13485 |
| B & B Precision Wire EDM Inc Milling, EDM, Grinding · ITAR | Forest Hill, MD | MillingEDMGrinding | ITAR |
| B & J Specialty Inc Milling, Welding, EDM | Wawaka, IN | MillingWeldingEDM | - |
| B T M Industries Inc Milling, Turning, Welding, Casting, Grinding | Woodstock, IL | MillingTurningWeldingCastingGrinding | - |
| Benton Machine Works Inc. Milling, Turning | Jacksonville, FL | MillingTurning | - |
| Blackhawk Engineering LLC Milling, Turning · ISO 9001, ITAR | Cedar Falls, IA | MillingTurning | ISO 9001, ITAR |
| Blackhawk Machine Products Inc Milling, Turning | Smithfield, RI | MillingTurning | - |
| Blue Waters Engineering LLC Milling · ISO 9001, AS9100, ITAR | Vancouver, WA | Milling | ISO 9001, AS9100, ITAR |
| Braswell Precision Inc Milling, Turning, EDM, Finishing, Assembly · ISO 9001, NADCAP | Glen Burnie, MD | MillingTurningEDMFinishingAssembly | ISO 9001, NADCAP |
| Brinkman Precision, Inc Milling, Turning, Swiss, Laser, EDM, Grinding · ISO 9001, NADCAP | West Henrietta, NY | MillingTurningSwissLaserEDMGrinding | ISO 9001, NADCAP |
| C P Precision Inc Milling, Finishing | Warminster, PA | MillingFinishing | - |
| C.E. Machine Company, Inc. Milling, Waterjet, Metal AM · ISO 9001, AS9100 | Wichita, KS | MillingWaterjetMetal AM | ISO 9001, AS9100 |
| Cat-Wood Metalworks Milling, Turning, Assembly · ISO 9001, ITAR | Moraine, OH | MillingTurningAssembly | ISO 9001, ITAR |
| Catamount Machine Works Milling, Turning, EDM · AS9100, ITAR, CMMC | Plant City, FL | MillingTurningEDM | AS9100, ITAR, CMMC |
| Centerline Machine, LLC Milling, Turning, Waterjet, Bending, Welding, Finishing, Assembly · ISO 9001, ITAR | Waupaca, WI | MillingTurningWaterjetBendingWeldingFinishingAssembly | ISO 9001, ITAR |
| Clearwater Machining Inc Milling, Turning | Clearwater, FL | MillingTurning | - |
| Colorado Machine Works, Inc. Milling, Turning | Colorado Springs, CO | MillingTurning | - |
| Critical Defense Inc Milling, Turning, Bending, Welding, Grinding, Assembly | Windber, PA | MillingTurningBendingWeldingGrindingAssembly | - |
| Csi Manufacturing Inc Milling, Turning, Laser, Welding, Stamping, Finishing · ISO 9001 | Westborough, MA | MillingTurningLaserWeldingStampingFinishing | ISO 9001 |
| Custom Machine Works LLC Milling, Turning, Stamping, Grinding | Fenton, MO | MillingTurningStampingGrinding | - |
| Dan's Custom Machining LLC Milling, Turning, Welding | Williamsburg, OH | MillingTurningWelding | - |
| Davis Manufacturing Co Milling, Turning, Welding, Finishing · AS9100, ITAR, CMMC | Wheat Ridge, CO | MillingTurningWeldingFinishing | AS9100, ITAR, CMMC |
| Diamond Machine Works, Inc. Milling, Turning · ISO 9001, AS9100 | Seattle, WA | MillingTurning | ISO 9001, AS9100 |
| Dimensional Swiss Products, Inc Milling, Turning, Swiss · ISO 9001 | Huntingdon, TN | MillingTurningSwiss | ISO 9001 |
| DJW Assembly Inc Milling, Turning | Arlington Heights, IL | MillingTurning | - |
| Dualtron Manufacturing Milling, Laser, Punching, Welding, Finishing, Assembly | West Babylon, NY | MillingLaserPunchingWeldingFinishingAssembly | - |