| Nikel Precision Group LLC Milling, Turning, Grinding, Assembly · ISO 13485 | Saco, ME | MillingTurningGrindingAssembly | ISO 13485 |
| Numberall Stamp & Tool Co., Inc Stamping | Sangerville, ME | Stamping | - |
| Blue Chip Machine Milling, Finishing, Assembly | Vassalboro, ME | MillingFinishingAssembly | - |
| D & G Machine Products, LLC Milling, Turning, Bending, Laser, Welding · ISO 9001, AS9100 | Gorham, ME | MillingTurningBendingLaserWelding | ISO 9001, AS9100 |
| Dearborn Bortec LLC Milling, Turning, Waterjet, Welding, EDM, Grinding, Finishing · ISO 9001, AS9100, ITAR | Fryeburg, ME | MillingTurningWaterjetWeldingEDMGrindingFinishing | ISO 9001, AS9100, ITAR |
| Kennebec Technologies Milling, Grinding, Assembly | Augusta, ME | MillingGrindingAssembly | - |
| Masters Machine Company Milling, Turning, Swiss, Grinding, Finishing · ISO 9001, ITAR | Bristol, ME | MillingTurningSwissGrindingFinishing | ISO 9001, ITAR |
| Mountain Machine Works Milling, Turning, Welding · ISO 9001, ITAR | Auburn, ME | MillingTurningWelding | ISO 9001, ITAR |
| Odat Machine Milling, Turning, Welding, Grinding | Gorham, ME | MillingTurningWeldingGrinding | - |
| Phoenix Welding Welding | Portland, ME | Welding | - |
| Tem Inc Milling, Laser, Welding, Stamping, EDM, Assembly · ISO 9001, AS9100 | Buxton, ME | MillingLaserWeldingStampingEDMAssembly | ISO 9001, AS9100 |
| Knox Machine Co Assembly · ISO 9001, AS9100, ITAR | Warren, ME | Assembly | ISO 9001, AS9100, ITAR |
| Howard Tool Co Milling, Turning | Hermon, ME | MillingTurning | - |
| Jet Speed Metals Bending, Welding | Westbrook, ME | BendingWelding | - |