| 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 |
| Anderson Metal Industries Inc Milling, Turning, Welding, EDM, Grinding, Finishing · ISO 9001, ITAR | Franklin, PA | MillingTurningWeldingEDMGrindingFinishing | ISO 9001, ITAR |
| Ankeny Automation, LLC Milling, Laser, Welding, Grinding, Finishing | Omaha, NE | MillingLaserWeldingGrindingFinishing | - |
| Ansco Machine Co Milling, Turning, Punching, Grinding, Finishing · ISO 9001, ITAR | Peninsula, OH | MillingTurningPunchingGrindingFinishing | ISO 9001, ITAR |
| Ap Precision Metals, Inc Laser, Punching, Bending, Welding, Stamping, Finishing, Assembly · ISO 9001 | San Diego, CA | LaserPunchingBendingWeldingStampingFinishingAssembly | ISO 9001 |
| Apogee CNC Inc Milling, Welding, Grinding, Finishing · ITAR | Dexter, MI | MillingWeldingGrindingFinishing | ITAR |
| Apparatus Mfg., Inc Welding, Grinding, Finishing, Assembly | Poughkeepsie, NY | WeldingGrindingFinishingAssembly | - |
| Arcadian Systems LLC Finishing | Livingston, NJ | Finishing | - |
| Armor Contract Manufacturing Inc Welding, Stamping, Finishing | Elkhart, IN | WeldingStampingFinishing | - |
| Artisan Machining, Inc Milling, Finishing | Ronkonkoma, NY | MillingFinishing | - |
| Ascend Mfg Corp Milling, Laser, Welding, Stamping, Finishing | Anaheim, CA | MillingLaserWeldingStampingFinishing | - |
| Astro Machine & Tool Work Milling, Turning, Finishing | Tyler, TX | MillingTurningFinishing | - |
| Atmosphere Machining LLC Milling, Turning, Waterjet, Welding, Finishing · ITAR | Tehachapi, CA | MillingTurningWaterjetWeldingFinishing | ITAR |
| Auto-Turn Acquisition, LLC Milling, Turning, Welding, Stamping, Grinding, Finishing · ISO 9001, AS9100 | Tulsa, OK | MillingTurningWeldingStampingGrindingFinishing | ISO 9001, AS9100 |
| Autopilot Inc Milling, Turning, Finishing | Bozeman, MT | MillingTurningFinishing | - |
| Avanti Engineering Inc Milling, Turning, Swiss, EDM, Grinding, Finishing, Assembly · ISO 9001 | Glendale Heights, IL | MillingTurningSwissEDMGrindingFinishingAssembly | ISO 9001 |
| Axion Labs Inc Milling, Turning, Finishing · ISO 9001, AS9100, ITAR, ISO 13485 | Westlake, OH | MillingTurningFinishing | ISO 9001, AS9100, ITAR, ISO 13485 |
| Axton Robotics LLC Milling, Turning, Finishing | San Diego, CA | MillingTurningFinishing | - |
| Az Fine Arc LLC Turning, Waterjet, Bending, Welding, Finishing | Tucson, AZ | TurningWaterjetBendingWeldingFinishing | - |
| B & B Manufacturing Co, Inc Laser, Bending, Welding, Finishing | Forest Hill, MD | LaserBendingWeldingFinishing | - |
| Babbitt Bearing Co Inc Welding, Grinding, Finishing | San Jose, CA | WeldingGrindingFinishing | - |
| Banner Metalcraft Inc Milling, Turning, Laser, Punching, Bending, Welding, Stamping, Grinding, Finishing · AS9100 | Ronkonkoma, NY | MillingTurningLaserPunchingBendingWeldingStampingGrindingFinishing | AS9100 |
| Bedford Machine & Tool Inc Milling, Turning, Welding, Casting, Finishing | Bedford, IN | MillingTurningWeldingCastingFinishing | - |
| Beers Tooling and Machining Milling, Turning, Welding, Finishing · ISO 9001 | Jim Thorpe, PA | MillingTurningWeldingFinishing | ISO 9001 |
| Bell Machine Works Milling, Finishing · ISO 9001, ITAR | Gilroy, CA | MillingFinishing | ISO 9001, ITAR |
| Benen Manufacturing LLC Milling, Turning, Welding, Finishing, Assembly · ISO 9001, ISO 13485 | San Jose, CA | MillingTurningWeldingFinishingAssembly | ISO 9001, ISO 13485 |
| Bennett Manufacturing Company, Inc Laser, Welding, Finishing | Alden, NY | LaserWeldingFinishing | - |
| Bent River Machine Inc Milling, Turning, Bending, Welding, EDM, Grinding, Finishing, Assembly · ISO 9001 | Clarkdale, AZ | MillingTurningBendingWeldingEDMGrindingFinishingAssembly | ISO 9001 |
| Bertrand Products, Inc Milling, Turning, Grinding, Finishing · ISO 9001 | South Bend, IN | MillingTurningGrindingFinishing | ISO 9001 |
| 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 Chip Machine Milling, Finishing, Assembly | Vassalboro, ME | MillingFinishingAssembly | - |
| Bluewater Industries Inc Milling, Turning, Welding, Casting, Finishing | Moses Lake, WA | MillingTurningWeldingCastingFinishing | - |
| Bob Lewis Machine Company, Inc Milling, Turning, Welding, EDM, Grinding, Finishing · ISO 9001, AS9100 | Gardena, CA | MillingTurningWeldingEDMGrindingFinishing | ISO 9001, AS9100 |
| 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 | - |
| Breakout Manufacturing, LLC Milling, Finishing, Assembly · ITAR, CMMC | Murphy, TX | MillingFinishingAssembly | ITAR, CMMC |
| Brost Cleveland LLC Turning, Casting, Finishing, Assembly · ISO 9001 | Cleveland, OH | TurningCastingFinishingAssembly | ISO 9001 |
| Brot Inc Laser, Punching, Welding, Stamping, Finishing, Assembly | Cleveland, OH | LaserPunchingWeldingStampingFinishingAssembly | - |
| BT Machine Inc Milling, Turning, Welding, Finishing · ISO 9001, AS9100, ITAR | Tulsa, OK | MillingTurningWeldingFinishing | ISO 9001, AS9100, ITAR |
| Butler Precision Technologies LLC Milling, Turning, Welding, Finishing · AS9100, ITAR | Bristol, PA | MillingTurningWeldingFinishing | AS9100, ITAR |
| C & C Machining, Inc Milling, Turning, EDM, Grinding, Finishing | Hayward, CA | MillingTurningEDMGrindingFinishing | - |
| C M Engineering Inc Milling, Laser, Bending, Welding, Finishing, Assembly · ISO 9001 | Dugger, IN | MillingLaserBendingWeldingFinishingAssembly | ISO 9001 |
| C P Precision Inc Milling, Finishing | Warminster, PA | MillingFinishing | - |
| C&M Precision Tech Milling, Turning, Swiss, Welding, EDM, Grinding, Finishing · ISO 9001, AS9100, ITAR, ISO 13485, CMMC | Hudson, NH | MillingTurningSwissWeldingEDMGrindingFinishing | ISO 9001, AS9100, ITAR, ISO 13485, CMMC |
| Camco Manufacturing Inc Milling, Turning, Grinding, Finishing · ISO 9001, AS9100 | Sayre, PA | MillingTurningGrindingFinishing | ISO 9001, AS9100 |
| Campbell Engineering Milling, Welding, EDM, Finishing, Assembly · ISO 9001, ITAR | Lake Forest, CA | MillingWeldingEDMFinishingAssembly | ISO 9001, ITAR |
| Capital Industries Inc Laser, Punching, Bending, Welding, Finishing · ISO 9001 | Seattle, WA | LaserPunchingBendingWeldingFinishing | ISO 9001 |