| Porter Machine Inc Milling, Casting, Grinding · ISO 9001, AS9100 | West Greenwich, RI | MillingCastingGrinding | ISO 9001, AS9100 |
| Centracore, LLC Casting · ISO 9001, IATF 16949 | Saint Clair, MI | Casting | ISO 9001, IATF 16949 |
| General Plug and Manufacturing Co Milling, Casting, EDM, Grinding, Finishing · ISO 9001 | Oberlin, OH | MillingCastingEDMGrindingFinishing | ISO 9001 |
| Imagineering Machine Inc Milling, Turning, Casting · NADCAP | St Louis Park, MN | MillingTurningCasting | NADCAP |
| Kosmo Machine Inc Milling, Turning, Welding, Casting, EDM | Sandston, VA | MillingTurningWeldingCastingEDM | - |
| Olympus Foundry Welding, Casting · AS9100, NADCAP | Millcreek, UT | WeldingCasting | AS9100, NADCAP |
| Pme of Ohio, Inc Welding, Casting, Grinding | Minden, NV | WeldingCastingGrinding | - |
| Princeton Tool Inc Milling, Waterjet, Casting, EDM, Grinding, Assembly · AS9100, NADCAP | Mentor, OH | MillingWaterjetCastingEDMGrindingAssembly | AS9100, NADCAP |
| Trans Machine Technologies SC Milling, Turning, Bending, Laser, Welding, EDM, Casting · ISO 9001 | Greenville, SC | MillingTurningBendingLaserWeldingEDMCasting | ISO 9001 |