| A Precision Machining Corp Milling · AS9100, ITAR, CMMC | Shingle Springs, CA | Milling | AS9100, ITAR, CMMC |
| A.j.r. Industries, Inc Milling, Turning | Elk Grove Village, IL | MillingTurning | - |
| A.r.e. Manufacturing, Inc Milling, Turning, Swiss, Laser, Bending, Welding, EDM, Grinding, Finishing · ISO 9001 | Newberg, OR | MillingTurningSwissLaserBendingWeldingEDMGrindingFinishing | ISO 9001 |
| AAT Omega, LLC Milling, Turning, Laser, Punching, Bending, Welding, EDM, Grinding, Finishing, Assembly · ISO 9001, AS9100, ITAR, NADCAP | Keystone Heights, FL | MillingTurningLaserPunchingBendingWeldingEDMGrindingFinishingAssembly | ISO 9001, AS9100, ITAR, NADCAP |
| Abacorp CNC Machined Parts Milling, Turning, Laser, Welding · AS9100 | Moorpark, CA | MillingTurningLaserWelding | AS9100 |
| Above All CNC Inc Milling, Turning · ISO 9001, AS9100, ITAR | Goleta, CA | MillingTurning | ISO 9001, AS9100, ITAR |
| Absolute Machining, Inc Milling, Turning | Chatsworth, CA | MillingTurning | - |
| Abston Machine Shop Inc Milling, Turning, Finishing · ISO 9001, ITAR | Taft, TN | MillingTurningFinishing | ISO 9001, ITAR |
| Abw Technologies, Inc Milling, Welding · ISO 9001, AS9100 | Arlington, WA | MillingWelding | ISO 9001, AS9100 |
| Acadiana Manufacturing, LLC Milling, Turning | New Iberia, LA | MillingTurning | - |
| Acc Precision Inc Milling, Turning, Welding, Grinding | Oxnard, CA | MillingTurningWeldingGrinding | - |
| Accu Fab Inc Milling, Turning, Waterjet, Bending, Welding, Finishing | Chandler, AZ | MillingTurningWaterjetBendingWeldingFinishing | - |
| Accu-Rite Tool & Manufacturing Co Inc Milling, Turning · ISO 9001 | Tolland, CT | MillingTurning | ISO 9001 |
| Accu-Tech Manufacturing Milling, Turning, Welding | Shelby Township, MI | MillingTurningWelding | - |
| Accu-Tek Engineering, Inc Milling, Turning, Grinding | Plantsville, CT | MillingTurningGrinding | - |
| Accu-Tool, LLC Milling, Turning, EDM · ISO 9001, AS9100 | Apex, NC | MillingTurningEDM | ISO 9001, AS9100 |
| Accuburn of Williamsport, Inc Milling, Laser, Bending, Welding, Assembly | Williamsport, IN | MillingLaserBendingWeldingAssembly | - |
| Accura Industries Inc Milling, Turning · ISO 9001 | Fairport, NY | MillingTurning | ISO 9001 |
| Accurate Industrial Machining Inc Milling, Turning, Laser, Bending, Welding, Assembly · ISO 9001, ITAR, CMMC | Holbrook, NY | MillingTurningLaserBendingWeldingAssembly | ISO 9001, ITAR, CMMC |
| Accurate Machine Works Milling, Turning, Welding, EDM | College Sta, TX | MillingTurningWeldingEDM | - |
| Accurate Marking Products, Inc Milling, Turning, EDM · ISO 9001, AS9100, ITAR | New Kensington, PA | MillingTurningEDM | ISO 9001, AS9100, ITAR |
| Accurounds, Inc Milling, Turning, Swiss, Grinding, Assembly · ISO 9001, AS9100, ISO 13485 | Avon, MA | MillingTurningSwissGrindingAssembly | ISO 9001, AS9100, ISO 13485 |
| Accuturn Corp Milling, Turning, Swiss, Grinding · AS9100 | Moreno Valley, CA | MillingTurningSwissGrinding | AS9100 |
| Ace Manufacturing Inc Milling, Turning · ISO 9001 | Green Bay, WI | MillingTurning | ISO 9001 |
| Ace of Diamonds International Inc Milling | Aurora, IL | Milling | - |
| Acro Manufacturing Corporation Milling, Turning, Welding · ISO 9001 | Cedar Rapids, IA | MillingTurningWelding | ISO 9001 |
| Acroturn Industries USA LLC Milling · ISO 9001, AS9100 | Tavares, FL | Milling | ISO 9001, AS9100 |
| Advance Apex Inc Milling, Turning, Swiss, Welding · ISO 9001, AS9100, ITAR | Grove City, OH | MillingTurningSwissWelding | ISO 9001, AS9100, ITAR |
| Advance Manufacturing Tech Milling, Turning, Welding · ISO 9001, AS9100 | Salt Lake City, UT | MillingTurningWelding | ISO 9001, AS9100 |
| Advanced Automotive Group, L.L.C Milling, Welding, Stamping | Algonac, MI | MillingWeldingStamping | - |
| Advanced CNC Manufacturing Inc Milling, Grinding · ISO 9001 | Odessa, FL | MillingGrinding | ISO 9001 |
| Advanced CNC Technology Inc Milling, Turning, Welding, Grinding · ISO 9001, ITAR | Sterling Heights, MI | MillingTurningWeldingGrinding | ISO 9001, ITAR |
| Advanced Engineering & EDM, Inc Milling, Turning, Laser, Stamping, EDM, Grinding | Poway, CA | MillingTurningLaserStampingEDMGrinding | - |
| 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 |
| Advanced Machining Inc Milling, Turning, Waterjet, Welding | New Smyrna Beach, FL | MillingTurningWaterjetWelding | - |
| Advanced Machining Solutions Milling, Turning, Welding | Oklahoma City, OK | MillingTurningWelding | - |
| Advanced Machining Technologies L.L.C Milling, Turning · ISO 9001, AS9100 | Plainville, CT | MillingTurning | ISO 9001, AS9100 |
| Advanced Manufacturing & Fabrication Inc Milling, Turning, Laser, Punching, Bending, Welding, Stamping | Phoenix, AZ | MillingTurningLaserPunchingBendingWeldingStamping | - |
| Advanced Materials Technologies, LLC Milling, Turning, Welding, EDM, Grinding · ISO 9001, AS9100 | Chandler, AZ | MillingTurningWeldingEDMGrinding | ISO 9001, AS9100 |
| Advanced Mechatronics Corp Milling, Turning, Welding, EDM, Grinding | Norton Shores, MI | MillingTurningWeldingEDMGrinding | - |
| Advanced Metal Manufacturing Inc Milling, Laser, Punching, Bending, Welding, Finishing · ISO 9001, AS9100 | Simi Valley, CA | MillingLaserPunchingBendingWeldingFinishing | ISO 9001, AS9100 |
| Advantage Metal Products, Inc Milling, Bending, Finishing, Assembly · ITAR | Livermore, CA | MillingBendingFinishingAssembly | ITAR |
| Aeg Industries, Inc Milling, Turning, Bending, Grinding · ISO 9001, ITAR | Santa Rosa, CA | MillingTurningBendingGrinding | ISO 9001, ITAR |
| Aero Components Inc Milling, Turning, EDM, Grinding · ISO 9001 | Oklahoma City, OK | MillingTurningEDMGrinding | ISO 9001 |
| Aero Industries, LLC Milling · ISO 9001 | Buellton, CA | Milling | ISO 9001 |
| Aero Mechanism Precision Inc Milling, Assembly · ISO 9001, AS9100 | Chatsworth, CA | MillingAssembly | ISO 9001, AS9100 |
| Aero Tech Manufactuting Inc Milling, Turning, Laser, Punching, Bending, Welding, Finishing, Assembly · ISO 9001 | North Salt Lake, UT | MillingTurningLaserPunchingBendingWeldingFinishingAssembly | ISO 9001 |
| Aero-Space Tooling & Machining Milling, Turning, EDM · ISO 9001, AS9100 | Salt Lake City, UT | MillingTurningEDM | ISO 9001, AS9100 |
| Aero-Tech Engineering Inc Milling, Turning, Welding, Assembly · ISO 9001, AS9100, ITAR | Maize, KS | MillingTurningWeldingAssembly | ISO 9001, AS9100, ITAR |
| Aerotar Inc Milling, Welding, Grinding · ISO 9001 | Opa Locka, FL | MillingWeldingGrinding | ISO 9001 |