| All Time Machine Inc Milling, Turning, Finishing · AS9100 | Ontario, CA | MillingTurningFinishing | AS9100 |
| Alliance Laser Inc Milling, Turning, Laser, Bending, Finishing | Slidell, LA | MillingTurningLaserBendingFinishing | - |
| American Bully Manufacturing LLC Milling, Bending, Welding, Finishing, Assembly · AS9100 | Annapolis Junction, MD | MillingBendingWeldingFinishingAssembly | AS9100 |
| American Hollow Boring Co Milling, Turning, Grinding, Finishing · ISO 9001 | Erie, PA | MillingTurningGrindingFinishing | ISO 9001 |
| American Machining Inc Milling, Turning, Welding, Grinding, Finishing · ISO 9001 | Ottawa, IL | MillingTurningWeldingGrindingFinishing | ISO 9001 |
| American Metalcraft, Inc Waterjet, Punching, Bending, Welding, Finishing, Assembly | Villa Rica, GA | WaterjetPunchingBendingWeldingFinishingAssembly | - |
| American Precision Industries, Inc Milling, Turning, Laser, Bending, Welding, Finishing | Hillsboro, OR | MillingTurningLaserBendingWeldingFinishing | - |
| American Precision Tool & Engineering, Inc Milling, Turning, Swiss, Welding, Grinding, Finishing | Pacoima, CA | MillingTurningSwissWeldingGrindingFinishing | - |
| American Waterjet Cutting LLC Milling, Waterjet, Finishing | Winfield, IA | MillingWaterjetFinishing | - |
| Amex Plating Inc Finishing | Santa Clara, CA | Finishing | - |
| Amincor Milling, Turning, Swiss, Laser, Punching, Bending, Welding, Stamping, EDM, Grinding, Finishing, Assembly · ISO 9001, ITAR, CMMC | Belton, MO | MillingTurningSwissLaserPunchingBendingWeldingStampingEDMGrindingFinishingAssembly | ISO 9001, ITAR, CMMC |
| AMS Manufacturing Welding, EDM, Finishing, Assembly | San Jose, CA | WeldingEDMFinishingAssembly | - |
| Anchor-Harvey Components LLC Milling, Forging, Finishing · ISO 9001, AS9100 | Freeport, IL | MillingForgingFinishing | ISO 9001, AS9100 |
| Anoplate Corp Finishing · ISO 9001, NADCAP | Syracuse, NY | Finishing | ISO 9001, NADCAP |
| Aotco Holdings, LLC Finishing · ISO 9001, AS9100, ITAR, NADCAP, ISO 13485 | Billerica, MA | Finishing | ISO 9001, AS9100, ITAR, NADCAP, ISO 13485 |
| Apex Engineered Products Milling, Turning, Waterjet, Welding, Finishing | Clark, PA | MillingTurningWaterjetWeldingFinishing | - |
| Apex HT Manufacturing Corp Milling, Turning, Finishing · ISO 9001, ITAR, CMMC | Santa Clara, CA | MillingTurningFinishing | ISO 9001, ITAR, CMMC |
| Arcadian Systems LLC Finishing | Livingston, NJ | Finishing | - |
| Arctic Manufacturing Services LLC Milling, Finishing | Anchorage, AK | MillingFinishing | - |
| Armadillo Additive Inc Milling, Bending, Metal AM, EDM, Finishing · ISO 13485 | Granbury, TX | MillingBendingMetal AMEDMFinishing | ISO 13485 |
| Armoloy of Connecticut, Inc Finishing · ISO 9001, AS9100, ITAR, NADCAP | Bristol, CT | Finishing | ISO 9001, AS9100, ITAR, NADCAP |
| Ascend Mfg Corp Milling, Laser, Welding, Stamping, Finishing | Anaheim, CA | MillingLaserWeldingStampingFinishing | - |
| Ash-Tec Laser, Welding, Finishing | Hegins, PA | LaserWeldingFinishing | - |
| Astro Machine & Tool Work Milling, Turning, Finishing | Tyler, TX | MillingTurningFinishing | - |
| Atmosphere Machining LLC Milling, Turning, Waterjet, Welding, Finishing · ITAR | Tehachapi, CA | MillingTurningWaterjetWeldingFinishing | ITAR |
| Atomic Machine & EDM Inc Milling, Turning, Swiss, EDM, Finishing · ISO 9001, ITAR, ISO 13485 | Naples, FL | MillingTurningSwissEDMFinishing | ISO 9001, ITAR, ISO 13485 |
| Atscott Mfg, Inc Milling, Turning, Laser, Waterjet, Punching, Bending, Welding, Stamping, Grinding, Finishing, Assembly · ISO 9001, ITAR | Pine City, MN | MillingTurningLaserWaterjetPunchingBendingWeldingStampingGrindingFinishingAssembly | ISO 9001, ITAR |
| Augustine Die & Mold Inc Milling, Turning, Waterjet, Stamping, Finishing · ISO 9001, AS9100, ITAR | Somerset, PA | MillingTurningWaterjetStampingFinishing | ISO 9001, AS9100, ITAR |
| Auto-Turn Acquisition, LLC Milling, Turning, Welding, Stamping, Grinding, Finishing · ISO 9001, AS9100 | Tulsa, OK | MillingTurningWeldingStampingGrindingFinishing | ISO 9001, AS9100 |
| Avanti Engineering Inc Milling, Turning, Swiss, EDM, Grinding, Finishing, Assembly · ISO 9001 | Glendale Heights, IL | MillingTurningSwissEDMGrindingFinishingAssembly | ISO 9001 |
| Axton Robotics LLC Milling, Turning, Finishing | San Diego, CA | MillingTurningFinishing | - |
| Aztec Plastic Company Welding, Stamping, Grinding, Finishing, Assembly | Chicago, IL | WeldingStampingGrindingFinishingAssembly | - |
| B & B Manufacturing Co, Inc Laser, Bending, Welding, Finishing | Forest Hill, MD | LaserBendingWeldingFinishing | - |
| B & W Machine Works, Inc Milling, Turning, Swiss, Grinding, Finishing · AS9100, NADCAP | Perkasie, PA | MillingTurningSwissGrindingFinishing | AS9100, NADCAP |
| Bedford Machine & Tool Inc Milling, Turning, Welding, Casting, Finishing | Bedford, IN | MillingTurningWeldingCastingFinishing | - |
| Bell Machine Works Milling, Finishing · ISO 9001, ITAR | Gilroy, CA | MillingFinishing | ISO 9001, ITAR |
| Beltim & Associates, LLC Milling, Turning, Swiss, Waterjet, Stamping, Casting, EDM, Finishing · ISO 9001, ITAR, ISO 13485 | Pleasanton, CA | MillingTurningSwissWaterjetStampingCastingEDMFinishing | ISO 9001, ITAR, ISO 13485 |
| Bent River Machine Inc Milling, Turning, Bending, Welding, EDM, Grinding, Finishing, Assembly · ISO 9001 | Clarkdale, AZ | MillingTurningBendingWeldingEDMGrindingFinishingAssembly | ISO 9001 |
| Billet Studio LLC Finishing | Round Rock, TX | Finishing | - |
| Bishop Aerospace LLC Milling, Turning, Swiss, Finishing | Aledo, TX | MillingTurningSwissFinishing | - |
| Bison Profab Inc Laser, Punching, Bending, Welding, Finishing · ISO 9001 | Magnolia, TX | LaserPunchingBendingWeldingFinishing | ISO 9001 |
| Blackstar CNC LLC Milling, Laser, Bending, Welding, Finishing · ISO 9001 | Merrillville, IN | MillingLaserBendingWeldingFinishing | ISO 9001 |
| Blue Ridge Machine Works Inc Milling, Turning, Waterjet, Welding, Grinding, Finishing | Verona, VA | MillingTurningWaterjetWeldingGrindingFinishing | - |
| Bluewater Industries Inc Milling, Turning, Welding, Casting, Finishing | Moses Lake, WA | MillingTurningWeldingCastingFinishing | - |
| Boniface Tool & Die Inc Milling, Turning, Waterjet, Stamping, Grinding, Finishing | Dudley, MA | MillingTurningWaterjetStampingGrindingFinishing | - |
| Bozeman CNC LLC Milling, Laser, Finishing · ISO 9001, AS9100, ITAR | Manhattan, MT | MillingLaserFinishing | ISO 9001, AS9100, ITAR |
| Brantley R Lingerfelt Milling, Turning, Finishing | Carnesville, GA | MillingTurningFinishing | - |
| Braswell Precision Inc Milling, Turning, EDM, Finishing, Assembly · ISO 9001, NADCAP | Glen Burnie, MD | MillingTurningEDMFinishingAssembly | ISO 9001, NADCAP |
| Britech Electropolishing Inc Welding, Finishing | Newark, CA | WeldingFinishing | - |
| Brooks Industrial, LLC Milling, Grinding, Finishing | North Attleboro, MA | MillingGrindingFinishing | - |