| Donahue Industries, Incorporated Milling, Turning, Swiss, Punching, Bending, Welding, Stamping, EDM, Grinding, Finishing | Shrewsbury, MA | MillingTurningSwissPunchingBendingWeldingStampingEDMGrindingFinishing | - |
| A-W Airflo Industries, Inc Laser, Punching, Bending, Finishing | Newburyport, MA | LaserPunchingBendingFinishing | - |
| Operateup Inc Milling, Turning, Punching, Welding, Stamping · ISO 9001 | Orange, MA | MillingTurningPunchingWeldingStamping | ISO 9001 |
| Franklin Sheet Metal, LLC Milling, Laser, Waterjet, Punching, Bending, Welding, Grinding, Finishing · ITAR | Franklin, MA | MillingLaserWaterjetPunchingBendingWeldingGrindingFinishing | ITAR |
| Nevron Plastics Inc Turning, Punching · ISO 9001 | Saugus, MA | TurningPunching | ISO 9001 |
| O. W. Landergren, Inc Milling, Laser, Punching, Bending, Welding, Stamping, EDM, Grinding, Finishing | Pittsfield, MA | MillingLaserPunchingBendingWeldingStampingEDMGrindingFinishing | - |
| Teltron Engineering, Inc Laser, Punching, Bending, Welding, Assembly · AS9100, ITAR, CMMC | Taunton, MA | LaserPunchingBendingWeldingAssembly | AS9100, ITAR, CMMC |
| Thermo-Craft Engineering Corp Milling, Turning, Waterjet, Punching, Bending, Welding, Grinding, Assembly | Lynn, MA | MillingTurningWaterjetPunchingBendingWeldingGrindingAssembly | - |
| Vortex LLC Milling, Laser, Punching, Welding, EDM, Assembly | Peabody, MA | MillingLaserPunchingWeldingEDMAssembly | - |
| Weiss Sheet Metal Laser, Waterjet, Punching, Welding | Avon, MA | LaserWaterjetPunchingWelding | - |
| Wrobel Engineering Co. Inc Milling, Turning, Punching, Welding, Stamping, Grinding, Assembly | Avon, MA | MillingTurningPunchingWeldingStampingGrindingAssembly | - |