| RBH Aerospace Inc Milling, Turning, Waterjet, Bending | Lakewood, CA | MillingTurningWaterjetBending | - |
| Samss Refacer, Inc Milling, Turning, Waterjet | Laurel, MT | MillingTurningWaterjet | - |
| SpecWeld Milling, Welding, Assembly · ISO 9001 | Lake Orion, MI | MillingWeldingAssembly | ISO 9001 |
| Vanermen Smith Products Inc Milling, Turning, Waterjet, Bending, Welding, Grinding, Assembly · ISO 9001 | Lansing, MI | MillingTurningWaterjetBendingWeldingGrindingAssembly | ISO 9001 |
| All-Around Fabrication Inc Milling, Laser, Bending, Welding · ITAR | Sacramento, CA | MillingLaserBendingWelding | ITAR |
| Apex Design Technology of Alabama LLC Milling, Turning, Bending, Welding, Assembly · ISO 9001 | Decatur, AL | MillingTurningBendingWeldingAssembly | ISO 9001 |
| Arnprior Aerospace Portland, Inc Milling · ITAR, NADCAP | Portland, OR | Milling | ITAR, NADCAP |
| Hilltop Technology Laboratory Inc Milling | Irvine, CA | Milling | - |
| Howland Machine Corp Milling, Welding | Niles, OH | MillingWelding | - |
| L. E. F., Inc Milling, Laser, Bending, Welding, Stamping, Finishing | Tulsa, OK | MillingLaserBendingWeldingStampingFinishing | - |
| L.a. Martin Company Milling, Turning, Bending, Welding, Grinding, Finishing · ISO 9001 | Dearborn, MI | MillingTurningBendingWeldingGrindingFinishing | ISO 9001 |
| Swift Industries Inc Milling, Laser, Punching, Bending, Welding, Stamping, Grinding, Finishing, Assembly · ISO 9001 | Suwanee, GA | MillingLaserPunchingBendingWeldingStampingGrindingFinishingAssembly | ISO 9001 |
| Wieland Techni-Cast Milling, Casting | South Gate, CA | MillingCasting | - |
| Wild Bore Machine, LLC Milling, Turning, Laser, Waterjet, Bending, Welding | East Dublin, GA | MillingTurningLaserWaterjetBendingWelding | - |
| Advance Tool Co Inc Milling, EDM, Grinding | Safety Harbor, FL | MillingEDMGrinding | - |
| Critical Components-Oil & Gas Milling, Turning, Welding, Metal AM, Finishing | Oklahoma City, OK | MillingTurningWeldingMetal AMFinishing | - |
| Davis Tool & Die, Inc Milling, Turning, Welding, Stamping, EDM, Grinding | Abbeville, MS | MillingTurningWeldingStampingEDMGrinding | - |
| Dixon Tool & Die Co Inc Milling, Turning, Waterjet, Welding, EDM, Grinding · ISO 9001, CMMC | Tyrone, PA | MillingTurningWaterjetWeldingEDMGrinding | ISO 9001, CMMC |
| Hill Aerosystems Inc Milling, Turning, Waterjet, Punching, Bending, Welding, Stamping, EDM, Assembly · AS9100 | Enumclaw, WA | MillingTurningWaterjetPunchingBendingWeldingStampingEDMAssembly | AS9100 |
| L&M machining center Milling, Turning, Metal AM · AS9100, ITAR | Tucson, AZ | MillingTurningMetal AM | AS9100, ITAR |
| 360 Machine Shop Milling, Turning, Laser, Welding, Metal AM | Bloomington, IL | MillingTurningLaserWeldingMetal AM | - |
| 3DX Industries Inc Milling, Turning, Swiss, Metal AM, Finishing, Assembly | Ferndale, WA | MillingTurningSwissMetal AMFinishingAssembly | - |
| 4K Machining Milling, Casting, Finishing · ITAR | Elizabeth, CO | MillingCastingFinishing | ITAR |
| 4TH Axis Machine & Design Inc Milling, Turning, Laser, Finishing · ISO 9001 | Albertville, MN | MillingTurningLaserFinishing | ISO 9001 |
| A & P Fabricating Solutions, LLC Milling, Turning, Bending, Laser, Welding | Appleton, WI | MillingTurningBendingLaserWelding | - |
| A B & F Sheet Metal Products Inc Milling, Turning, Waterjet, Bending, Welding, Finishing · AS9100, ITAR | Cheshire, CT | MillingTurningWaterjetBendingWeldingFinishing | AS9100, ITAR |
| A.m.i. Engineering Co LLC Milling, Turning, Finishing · ISO 9001, ITAR | Santa Ana, CA | MillingTurningFinishing | ISO 9001, ITAR |
| A.r.e. Manufacturing, Inc Milling, Turning, Swiss, Laser, Bending, Welding, EDM, Grinding, Finishing · ISO 9001 | Newberg, OR | MillingTurningSwissLaserBendingWeldingEDMGrindingFinishing | ISO 9001 |
| Abco Bar and Tube Cutting Service, Inc Milling, Turning, Grinding, Finishing | Maineville, OH | MillingTurningGrindingFinishing | - |
| Abston Machine Shop Inc Milling, Turning, Finishing · ISO 9001, ITAR | Taft, TN | MillingTurningFinishing | ISO 9001, ITAR |
| Accuburn of Williamsport, Inc Milling, Laser, Bending, Welding, Assembly | Williamsport, IN | MillingLaserBendingWeldingAssembly | - |
| Accurate Industrial Machining Inc Milling, Turning, Laser, Bending, Welding, Assembly · ISO 9001, ITAR, CMMC | Holbrook, NY | MillingTurningLaserBendingWeldingAssembly | ISO 9001, ITAR, CMMC |
| Active Solutions, L.L.C Milling, Turning, Waterjet, Bending, Welding, Finishing, Assembly · AS9100 | Chandler, AZ | MillingTurningWaterjetBendingWeldingFinishingAssembly | AS9100 |
| Advanced Engineering & EDM, Inc Milling, Turning, Laser, Stamping, EDM, Grinding | Poway, CA | MillingTurningLaserStampingEDMGrinding | - |
| Advanced Machine & Tooling Inc Milling, Turning, Laser, Punching, Bending, Welding, Stamping, Grinding | Virginia Beach, VA | MillingTurningLaserPunchingBendingWeldingStampingGrinding | - |
| 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 & Tooling, LLC Milling, Turning, Welding, Stamping, EDM, Grinding, Finishing · ISO 9001 | Salisbury, NC | MillingTurningWeldingStampingEDMGrindingFinishing | ISO 9001 |
| Advanced Manufacturing & Fabrication Inc Milling, Turning, Laser, Punching, Bending, Welding, Stamping | Phoenix, AZ | MillingTurningLaserPunchingBendingWeldingStamping | - |
| Advanced Precision Machining, Inc Milling, Welding, EDM, Finishing · AS9100 | Garden City, ID | MillingWeldingEDMFinishing | AS9100 |
| Advanced Thrtical Concepts Inc Milling, Turning, Swiss, Laser, Waterjet, Welding, Grinding, Finishing | Camarillo, CA | MillingTurningSwissLaserWaterjetWeldingGrindingFinishing | - |
| Aero Tech Manufactuting Inc Milling, Turning, Laser, Punching, Bending, Welding, Finishing, Assembly · ISO 9001 | North Salt Lake, UT | MillingTurningLaserPunchingBendingWeldingFinishingAssembly | ISO 9001 |
| Aero-Mach Precision LLC Milling, Turning, Welding, Finishing | Mesa, AZ | MillingTurningWeldingFinishing | - |
| Aeroparts Fabricating & Machining Inc Milling, Punching, Bending, Finishing · ISO 9001, AS9100, NADCAP | Nicktown, PA | MillingPunchingBendingFinishing | ISO 9001, AS9100, NADCAP |
| Agi Corporation Milling, Turning, Welding, EDM, Finishing | Huntsville, AL | MillingTurningWeldingEDMFinishing | - |
| Airtronics Metal Products Milling, Laser, Punching, Bending, Welding, Assembly · ISO 9001, ISO 13485 | Morgan Hill, CA | MillingLaserPunchingBendingWeldingAssembly | ISO 9001, ISO 13485 |
| Albion Machine and Tool LLC Milling, Turning, Laser, Welding, Grinding, Finishing | Albion, MI | MillingTurningLaserWeldingGrindingFinishing | - |
| ALC Engineered Solutions Company Milling, Turning, Swiss, EDM, Finishing · ISO 9001 | Lockwood, MO | MillingTurningSwissEDMFinishing | ISO 9001 |
| All Materials Manufacturing Co LLC Milling, Turning, Swiss, Finishing · ISO 9001, AS9100, ITAR | Riverside, CA | MillingTurningSwissFinishing | ISO 9001, AS9100, ITAR |
| All-American Engineering & Manufacturing, Inc Milling, Turning, Welding, Stamping, EDM, Grinding, Finishing · ISO 9001 | Saint Paul, MN | MillingTurningWeldingStampingEDMGrindingFinishing | ISO 9001 |
| Allied Industrial Machine Services Inc Milling, Turning, Welding, Grinding, Finishing | Falls Church, VA | MillingTurningWeldingGrindingFinishing | - |