| United Metal Fabricators, Inc Milling, Turning, Laser, Waterjet, Bending, Welding, Finishing, Assembly | Worcester, MA | MillingTurningLaserWaterjetBendingWeldingFinishingAssembly | - |
| Weiss Sheet Metal Laser, Waterjet, Punching, Welding | Avon, MA | LaserWaterjetPunchingWelding | - |
| Brooks Industrial, LLC Milling, Grinding, Finishing | North Attleboro, MA | MillingGrindingFinishing | - |
| Deuterium Ims LLC Welding | Attleboro, MA | Welding | - |
| Fixyte Systems Inc Milling, Assembly · ISO 9001, ITAR | Billerica, MA | MillingAssembly | ISO 9001, ITAR |
| Gradient Design & Engineering, Inc Milling, Turning · ISO 9001 | Leominster, MA | MillingTurning | ISO 9001 |
| Hillside Engineering, Inc Milling, Turning, Grinding, Assembly | Danvers, MA | MillingTurningGrindingAssembly | - |
| Interstate Manufacturing Company, Inc Milling, Welding · ITAR | Agawam, MA | MillingWelding | ITAR |
| Jet Machined Products, LLC Milling, Turning, Stamping, Grinding · ISO 9001, ITAR | East Bridgewater, MA | MillingTurningStampingGrinding | ISO 9001, ITAR |
| Louis C Morin Co Inc Milling, Turning, Swiss, Welding, Grinding, Finishing, Assembly | North Billerica, MA | MillingTurningSwissWeldingGrindingFinishingAssembly | - |
| Morrison Berkshire Inc Welding | North Adams, MA | Welding | - |
| Operateup Inc Milling, Turning, Punching, Welding, Stamping · ISO 9001 | Orange, MA | MillingTurningPunchingWeldingStamping | ISO 9001 |
| Pocasset Machine, LLC Milling, Turning, Welding, Finishing | Pocasset, MA | MillingTurningWeldingFinishing | - |
| Wrobel Engineering Co. Inc Milling, Turning, Punching, Welding, Stamping, Grinding, Assembly | Avon, MA | MillingTurningPunchingWeldingStampingGrindingAssembly | - |
| Advanced Precision Engineering Milling, Turning, EDM · ISO 9001, AS9100 | Ipswich, MA | MillingTurningEDM | ISO 9001, AS9100 |
| Bay State Machine Co Milling, Turning, Grinding, Assembly | Easthampton, MA | MillingTurningGrindingAssembly | - |
| Blue Atlantic Fabricators LLC Bending, Welding | East Boston, MA | BendingWelding | - |
| Coating Systems, Inc Finishing · NADCAP | Lowell, MA | Finishing | NADCAP |
| Collins Manufacturing Inc Milling, Turning, EDM · ITAR | Essex, MA | MillingTurningEDM | ITAR |
| Crystal Engineering Co., Inc Milling, Stamping | Newburyport, MA | MillingStamping | - |
| Dimark Precision Machining,, Inc Milling, Turning, Welding, Grinding | Pembroke, MA | MillingTurningWeldingGrinding | - |
| JRS Precision Machine & Design LLC Milling, Turning | Lakeville, MA | MillingTurning | - |
| M2 Solutions LLC Milling, Assembly | Haverhill, MA | MillingAssembly | - |
| Millrite Machine Inc Turning, Assembly · ISO 9001 | Westfield, MA | TurningAssembly | ISO 9001 |
| Mills Machine Works Inc Milling, Turning, Welding, Grinding | Lawrence, MA | MillingTurningWeldingGrinding | - |
| Rennscot LLC Metal AM | Woburn, MA | Metal AM | - |
| Semco Machine Corporation Milling, Turning | Plainville, MA | MillingTurning | - |
| Villa Machine Associates, Inc Milling, Turning, Laser, Waterjet, Bending, Welding, EDM, Grinding, Assembly | Dedham, MA | MillingTurningLaserWaterjetBendingWeldingEDMGrindingAssembly | - |
| A A Precision Machine Co Inc Milling, Welding, Grinding | Fall River, MA | MillingWeldingGrinding | - |
| Axis CNC Inc Milling | Ware, MA | Milling | - |
| Nortek, Inc Milling, Turning, Swiss, Laser, Waterjet, Welding, EDM, Grinding, Finishing · ISO 9001, AS9100, ITAR, NADCAP | West Springfield, MA | MillingTurningSwissLaserWaterjetWeldingEDMGrindingFinishing | ISO 9001, AS9100, ITAR, NADCAP |
| Universal Machine & Design Corporation Milling, Grinding | Fitchburg, MA | MillingGrinding | - |
| Whip City Tool & Die Corporation Stamping | Southwick, MA | Stamping | - |
| Wirefab Inc. Bending, Laser, Welding · ISO 9001 | Worcester, MA | BendingLaserWelding | ISO 9001 |
| A-W Airflo Industries, Inc Laser, Punching, Bending, Finishing | Newburyport, MA | LaserPunchingBendingFinishing | - |
| Ap Precision Machine Inc Milling, Turning, Waterjet, Finishing | Holliston, MA | MillingTurningWaterjetFinishing | - |
| David Packard Company, Inc Milling, Turning, Swiss, Grinding, Finishing, Assembly · ISO 9001, ITAR | Oxford, MA | MillingTurningSwissGrindingFinishingAssembly | ISO 9001, ITAR |
| Duval Precision Grinding Inc Grinding, Finishing | Chicopee, MA | GrindingFinishing | - |
| Graycer Screw Products Co Inc Milling, Turning, Swiss | Bellingham, MA | MillingTurningSwiss | - |
| LHM Engineering LLC Milling, Swiss, Laser, Waterjet, Stamping, EDM, Grinding, Finishing, Assembly · ISO 13485 | Manchester, MA | MillingSwissLaserWaterjetStampingEDMGrindingFinishingAssembly | ISO 13485 |
| Mach Machine Inc Turning, Welding, Stamping, Casting, EDM, Assembly · ISO 9001, ITAR | Hudson, MA | TurningWeldingStampingCastingEDMAssembly | ISO 9001, ITAR |
| Microwave Components Specialists, Inc Milling, Turning | Orleans, MA | MillingTurning | - |
| New England Foundry LLC Milling, Bending, Welding, Stamping, Casting, EDM, Grinding, Finishing · ISO 9001 | Taunton, MA | MillingBendingWeldingStampingCastingEDMGrindingFinishing | ISO 9001 |
| Proto Xyz, Inc Milling, Turning, Laser, Waterjet, Grinding, Finishing · ISO 9001, ITAR | New Bedford, MA | MillingTurningLaserWaterjetGrindingFinishing | ISO 9001, ITAR |
| United Tool & Machine Corporation Milling, Waterjet, Stamping, EDM, Assembly · ISO 9001, ITAR | Lawrence, MA | MillingWaterjetStampingEDMAssembly | ISO 9001, ITAR |
| Bergeron Machine LLC Turning, Swiss · ISO 9001 | Westford, MA | TurningSwiss | ISO 9001 |
| Brennan Machine Co., Inc Milling · ISO 9001 | Hanson, MA | Milling | ISO 9001 |
| Ceric Fabrication Co Inc Welding, Grinding · ISO 9001, ITAR | Ayer, MA | WeldingGrinding | ISO 9001, ITAR |
| Cunningham Machine Co Milling, Turning · ISO 9001, AS9100, ITAR | Chelmsford, MA | MillingTurning | ISO 9001, AS9100, ITAR |
| Fairview Machine Co Inc Milling, Turning, EDM, Assembly | Topsfield, MA | MillingTurningEDMAssembly | - |