| Max Machine Milling, Turning, Laser, Waterjet, Welding, Grinding, Finishing · ISO 9001 | Elizabethtown, PA | MillingTurningLaserWaterjetWeldingGrindingFinishing | ISO 9001 |
| MBK Machine Corp Milling, Turning, Laser, EDM, Grinding · ITAR | Mead, CO | MillingTurningLaserEDMGrinding | ITAR |
| Mennie's Machine Co Milling, Turning, Welding, Grinding · IATF 16949 | Mark, IL | MillingTurningWeldingGrinding | IATF 16949 |
| Mercury Machining Co Milling, Turning, Welding, Grinding | Pensacola, FL | MillingTurningWeldingGrinding | - |
| Merritt Preferred Components Inc Milling, Turning, Waterjet, Grinding | Kilgore, TX | MillingTurningWaterjetGrinding | - |
| Metal Fusion Inc Milling, Turning, Welding, Grinding | Redwood City, CA | MillingTurningWeldingGrinding | - |
| Metal Products Inc Milling, Turning, Waterjet, Bending, Welding, EDM, Grinding | Appleton, WI | MillingTurningWaterjetBendingWeldingEDMGrinding | - |
| Metalogic Industries LLC Milling, Turning, Swiss, Laser, Welding, EDM, Grinding | Southbridge, MA | MillingTurningSwissLaserWeldingEDMGrinding | - |
| Mica-Tron Products Corp Milling, Grinding | Holbrook, MA | MillingGrinding | - |
| Micro-Matics Inc Milling, Turning, Swiss, Casting, EDM, Grinding, Assembly | Fridley, MN | MillingTurningSwissCastingEDMGrindingAssembly | - |
| Micron Precision Machining Inc Milling, Turning, EDM, Grinding | Saginaw, MI | MillingTurningEDMGrinding | - |
| Midwest Tool Inc Milling, Turning, Welding, EDM, Grinding | Joplin, MO | MillingTurningWeldingEDMGrinding | - |
| Mills Machine Works Inc Milling, Turning, Welding, Grinding | Lawrence, MA | MillingTurningWeldingGrinding | - |
| Mirror Finish Polishing Welding, Casting, Grinding | Kearney, MO | WeldingCastingGrinding | - |
| Morehead Machinery Inc Milling, Turning, Welding, EDM, Grinding | Elkhart, IN | MillingTurningWeldingEDMGrinding | - |
| Mumford Micro Machine Works, LLC Milling, Turning, Swiss, EDM, Grinding · ITAR | Nokomis, FL | MillingTurningSwissEDMGrinding | ITAR |
| New Age Manufacturing, Inc Milling, Turning, Welding, Grinding, Finishing, Assembly · ISO 9001 | Plattsmouth, NE | MillingTurningWeldingGrindingFinishingAssembly | ISO 9001 |
| Nolan's Machine Shop, Inc Milling, Turning, Welding, EDM, Grinding | Lafayette, LA | MillingTurningWeldingEDMGrinding | - |
| Novalite USA LLC Swiss, EDM, Grinding, Assembly · AS9100 | Sandpoint, ID | SwissEDMGrindingAssembly | AS9100 |
| Pearson Machine Milling, Welding, Grinding | Stoughton, MA | MillingWeldingGrinding | - |
| Pgi Steel Milling, Turning, Welding, Grinding, Finishing · ISO 9001, ITAR | Birmingham, AL | MillingTurningWeldingGrindingFinishing | ISO 9001, ITAR |
| Pimtad Aerospace LLC Milling, Turning, Swiss, Welding, Grinding, Assembly · AS9100 | Valencia, CA | MillingTurningSwissWeldingGrindingAssembly | AS9100 |
| Planet Products Corporation Milling, Turning, Grinding | Cincinnati, OH | MillingTurningGrinding | - |
| Pme of Ohio, Inc Welding, Casting, Grinding | Minden, NV | WeldingCastingGrinding | - |
| Polaris Engineering Inc Milling, Turning, Welding, EDM, Grinding | Fraser, MI | MillingTurningWeldingEDMGrinding | - |
| Powers Bros Machine Inc Welding, Grinding | Montebello, CA | WeldingGrinding | - |
| Precision Ceramics USA Grinding | Palmetto, FL | Grinding | - |
| Precision Die Systems Corp Milling, Welding, Grinding | Chippewa Falls, WI | MillingWeldingGrinding | - |
| Precision Ferrites & Ceramic Milling, Grinding · AS9100 | Huntington Beach, CA | MillingGrinding | AS9100 |
| Precision Laser Services Inc Milling, Turning, Laser, Punching, Bending, Welding, Stamping, Grinding | Fort Wayne, IN | MillingTurningLaserPunchingBendingWeldingStampingGrinding | - |
| Precision Sheet Metal Supply Inc Milling, Turning, Punching, Bending, Welding, Grinding | Herndon, VA | MillingTurningPunchingBendingWeldingGrinding | - |
| Princeton Tool Inc Milling, Waterjet, Casting, EDM, Grinding, Assembly · AS9100, NADCAP | Mentor, OH | MillingWaterjetCastingEDMGrindingAssembly | AS9100, NADCAP |
| Production Speed Fixtures, LLC Milling, Turning, Laser, Welding, Grinding | Wingate, NC | MillingTurningLaserWeldingGrinding | - |
| Progressive Engineering Co Milling, Turning, Welding, Grinding | Richmond, VA | MillingTurningWeldingGrinding | - |
| Qualitask Inc Milling, Turning, Swiss, Welding, EDM, Grinding, Finishing, Assembly · ISO 9001, AS9100 | Anaheim, CA | MillingTurningSwissWeldingEDMGrindingFinishingAssembly | ISO 9001, AS9100 |
| Radical Fabrications LLC Milling, Turning, Welding, Grinding | Lancaster, CA | MillingTurningWeldingGrinding | - |
| Ram Aerospace Inc Milling, Turning, Laser, Waterjet, EDM, Grinding, Assembly · AS9100, ITAR | Brea, CA | MillingTurningLaserWaterjetEDMGrindingAssembly | AS9100, ITAR |
| Reardon Machine Co Inc Milling, Turning, Welding, Stamping, EDM, Grinding | Saint Joseph, MO | MillingTurningWeldingStampingEDMGrinding | - |
| Red Lion Inc Laser, Grinding · AS9100 | Broomfield, CO | LaserGrinding | AS9100 |
| Rig Machine Works LLC Milling, Turning, Bending, Welding, Grinding | Stevensville, MT | MillingTurningBendingWeldingGrinding | - |
| Rima Manufacturing Co Grinding · IATF 16949 | Hudson, MI | Grinding | IATF 16949 |
| Ring Precision Milling, Turning, Swiss, Welding, EDM, Grinding | Jamestown, NY | MillingTurningSwissWeldingEDMGrinding | - |
| Riverside Machine & Automation Inc Milling, Turning, Welding, Stamping, Grinding, Assembly | Genoa, OH | MillingTurningWeldingStampingGrindingAssembly | - |
| RMT Corporation Milling, Turning, Welding, Grinding | Dayton, OH | MillingTurningWeldingGrinding | - |
| Rocktech Milling, Grinding | Chesterfield, MI | MillingGrinding | - |
| Rota Industries Milling, Turning, EDM, Grinding, Assembly | Farmingdale, NY | MillingTurningEDMGrindingAssembly | - |
| S & S Die Co Milling, Turning, Welding, EDM, Grinding | Lansing, MI | MillingTurningWeldingEDMGrinding | - |
| Scientific Tool Milling, Turning, Grinding | Syracuse, NY | MillingTurningGrinding | - |
| Scotia Engineering, Inc Milling, Waterjet, Bending, Welding, Stamping, EDM, Grinding, Assembly | Santa Fe Springs, CA | MillingWaterjetBendingWeldingStampingEDMGrindingAssembly | - |
| Shrettech Tool & Machine LLC Milling, Turning, Welding, Grinding | Racine, WI | MillingTurningWeldingGrinding | - |