Mach Machine INC | Hudson, MA | Fabricated Metal Product Manufacturing332721 | — | ● ACTIVE |
Mackenzie Machine & Design INC | Pembroke, MA | Fabricated Metal Product Manufacturing332710 | — | ● ACTIVE |
Mack Technologies, INC. | Westford, MA | Computer and Electronic Product Manufacturing334111 | — | ● ACTIVE |
Magellan Aerospace, Haverhill, INC | Haverhill, MA | Transportation Equipment Manufacturing336412 | 100–499 | ● ACTIVE |
| MMMagnum Machine INC. | Raymond, NH | Fabricated Metal Product Manufacturing332710 | — | ● ACTIVE |
| MBMass. Bay Brewing Company, Inc. | Boston, MA | Beverage and Tobacco Product Manufacturing312120 | 100–499 | ● ACTIVE |
| MCMass Cabinets INC | Methuen, MA | Furniture and Related Product Manufacturing337110 | — | ● ACTIVE |
| MCMass Crane & Hoist Services, INC | Tyngsboro, MA | Machinery Manufacturing333923 | — | ● ACTIVE |
| MNMaterion Newton INC | Newton, MA | Primary Metal Manufacturing331410 | 100–499 | ● ACTIVE |
| MPMaterion Precision Optics and Thin Film Coatings INC | Westford, MA | Machinery Manufacturing333310 | — | ● ACTIVE |
| MBM. Braun, INC | Stratham, NH | Computer and Electronic Product Manufacturing334516 | 100–499 | ● ACTIVE |
Mercury Systems INC | Andover, MA | Computer and Electronic Product Manufacturing334111 | — | ● ACTIVE |
Metalcrafters, INC. | Methuen, MA | Fabricated Metal Product Manufacturing332322 | 20–99 | ● ACTIVE |
Metal Processing Co., INC. | Tyngsboro, MA | Computer and Electronic Product Manufacturing334419 | — | ● ACTIVE |
Metamagnetics INC | Marlborough, MA | Computer and Electronic Product Manufacturing334419 | 20–99 | ● ACTIVE |
Mica-tron Products CORP | Holbrook, MA | Fabricated Metal Product Manufacturing332710 | — | ● ACTIVE |
| MLMicrosense, LLC | Lowell, MA | Computer and Electronic Product Manufacturing334413 | — | ● ACTIVE |
Mycronic INC | Tewksbury, MA | Machinery Manufacturing333242 | 100–499 | ● ACTIVE |
Nanoramic, INC. | Woburn, MA | Electrical Equipment, Appliance & Component Manufacturing335910 | 20–99 | ● ACTIVE |
| NCNational Coating | Rockland, MA | Textile Mills313320 | 20–99 | ● ACTIVE |
Ncab Group USA INC | Hampstead, NH | Computer and Electronic Product Manufacturing334412 | 20–99 | ● ACTIVE |
| NBNew Balance Athletic Shoe | Lawrence, MA | Leather and Allied Product Manufacturing316210 | — | ● ACTIVE |
| NENew England Innovations CORP. | Dover, NH | Fabricated Metal Product Manufacturing332710 | — | ● ACTIVE |
New Objective INC | Littleton, MA | Computer and Electronic Product Manufacturing334516 | — | ● ACTIVE |
Nocturn Industries LLC | Raymond, NH | Computer and Electronic Product Manufacturing334511 | — | ● ACTIVE |
Nona Technologies, INC | Somerville, MA | Miscellaneous Manufacturing339950 | — | ● ACTIVE |
Norfolk Corporation | Marshfield, MA | Chemical Manufacturing325510 | — | ● ACTIVE |
| NMNortheast Manufacturing Co., INC. | Stoneham, MA | Fabricated Metal Product Manufacturing332710 | — | ● ACTIVE |
Novocure INC | Portsmouth, NH | Computer and Electronic Product Manufacturing334510 | — | ● ACTIVE |
Nuclead Manufacturing, Co., INC. | West Bridgewater, MA | Primary Metal Manufacturing331410 | — | ● ACTIVE |
| NMNxstage Medical, INC. | Lawrence, MA | Miscellaneous Manufacturing339112 | — | ● ACTIVE |
Ocular Therapeutix, INC | Bedford, MA | Chemical Manufacturing325412 | 100–499 | ● ACTIVE |
| OIOnto Innovation INC | Wilmington, MA | Machinery Manufacturing333242 | — | ● ACTIVE |
| OIOpticraft, INC. | Woburn, MA | Machinery Manufacturing333310 | — | ● ACTIVE |
| PEPd&e Electronics, LLC | North Hampton, NH | Computer and Electronic Product Manufacturing334413 | — | ● ACTIVE |
| PUPlansee USA LLC | Franklin, MA | Fabricated Metal Product Manufacturing332710 | 100–499 | ● ACTIVE |
Plating for Electronics, LLC | Waltham, MA | Fabricated Metal Product Manufacturing332813 | — | ● ACTIVE |
| PGPlymouth Grating Laboratory, INC. | Carver, MA | Nonmetallic Mineral Product Manufacturing327215 | — | ● ACTIVE |
Poly6 Technologies, INC. | Burlington, MA | Nonmetallic Mineral Product Manufacturing327120 | 20–99 | ● ACTIVE |
Polycarbon Industries, INC | Devens, MA | Chemical Manufacturing325199 | — | ● ACTIVE |
Polymer Corporation | Rockland, MA | Plastics and Rubber Products Manufacturing326199 | — | ● ACTIVE |
Pp Systems International, LLC | Amesbury, MA | Computer and Electronic Product Manufacturing334516 | — | ● ACTIVE |
Precision Design Engineering CORP | Wareham, MA | Fabricated Metal Product Manufacturing332710 | — | ● ACTIVE |
Precision Machinists Company INC. | Chelmsford, MA | Fabricated Metal Product Manufacturing332710 | — | ● ACTIVE |
| PSPrecision Systems INC | Natick, MA | Computer and Electronic Product Manufacturing334516 | — | ● ACTIVE |
Pro Star Precision Machining, LLC | Londonderry, NH | Fabricated Metal Product Manufacturing332710 | 1–19 | ● ACTIVE |
Purecoat North, LLC | Belmont, MA | Fabricated Metal Product Manufacturing332813 | — | ● ACTIVE |
Pvd Products, INC. | Wilmington, MA | Machinery Manufacturing333242 | — | ● ACTIVE |
| PEPv Engineering & Manufacturing INC | Salisbury, MA | Fabricated Metal Product Manufacturing332710 | — | ● ACTIVE |
| QLQ LLC | Dover, NH | Fabricated Metal Product Manufacturing332994 | — | ● ACTIVE |