Arc Impact Acquisition Corporation | Burlington, MA | Machinery Manufacturing333248 | — | ● ACTIVE |
Arctic Dry Ice, LLC | Londonderry, NH | Chemical Manufacturing325120 | — | ● ACTIVE |
Ardent Concepts, INC. | Hampton, NH | Computer and Electronic Product Manufacturing334413 | — | ● ACTIVE |
| AUArgenx Us, INC | Boston, MA | Chemical Manufacturing325412 | — | ● ACTIVE |
| ASArgus Science LLC | Tyngsboro, MA | Computer and Electronic Product Manufacturing334519 | — | ● ACTIVE |
Artemis Biosystems, INC. | Quincy, MA | Plastics and Rubber Products Manufacturing326199 | — | ● ACTIVE |
Artisan Power LLC | Natick, MA | Electrical Equipment, Appliance & Component Manufacturing335910 | — | ● ACTIVE |
Ascent Aerosystems INC | Wilmington, MA | Transportation Equipment Manufacturing336411 | — | ● ACTIVE |
Aspen Systems, LLC | Marlborough, MA | Machinery Manufacturing333415 | — | ● ACTIVE |
| AMAssabet Machine CORP. | Boxborough, MA | Fabricated Metal Product Manufacturing332710 | — | ● ACTIVE |
Assayquant Technologies, INC. | Marlborough, MA | Chemical Manufacturing325998 | — | ● ACTIVE |
Assembly Guidance Systems, INC | Chelmsford, MA | Computer and Electronic Product Manufacturing334513 | — | ● ACTIVE |
Assembly Products, INC. | Chelmsford, MA | Computer and Electronic Product Manufacturing334418 | — | ● ACTIVE |
Associated Environmental Systems, LLC | North Chelmsford, MA | Computer and Electronic Product Manufacturing334516 | — | ● ACTIVE |
Atlantic Coatings LLC | Weymouth, MA | Transportation Equipment Manufacturing336611 | — | ● ACTIVE |
Atlantic Research Marketing Systems, INC. | West Bridgewater, MA | Machinery Manufacturing333310 | — | ● ACTIVE |
Atlas Devices, LLC | Chelmsford, MA | Fabricated Metal Product Manufacturing332999 | — | ● ACTIVE |
Atlee CORP | Tewksbury, MA | Fabricated Metal Product Manufacturing332510 | — | ● ACTIVE |
Aucoin Telecom & Utility Construction LLC | Chelmsford, MA | Computer and Electronic Product Manufacturing334111 | — | ● ACTIVE |
Aura Intelligent Systems INC | Boston, MA | Computer and Electronic Product Manufacturing334511 | — | ● ACTIVE |
Aurora Flight Sciences Corporation | Cambridge, MA | Transportation Equipment Manufacturing336411 | — | ● ACTIVE |
Avanpore LLC | Woburn, MA | Plastics and Rubber Products Manufacturing326199 | — | ● ACTIVE |
Avcarb, LLC | Lowell, MA | Chemical Manufacturing325199 | — | ● ACTIVE |
Aveo Pharmaceuticals, INC. | Boston, MA | Chemical Manufacturing325412 | — | ● ACTIVE |
A.w. Airflo Industries, INC. | Newburyport, MA | Fabricated Metal Product Manufacturing332322 | — | ● ACTIVE |
Axrad LLC | Arlington, MA | Computer and Electronic Product Manufacturing334519 | — | ● ACTIVE |
| BMBabin Machine, INC. | Brockton, MA | Machinery Manufacturing333517 | — | ● ACTIVE |
Baldi Designs, INC. | Walpole, MA | Computer and Electronic Product Manufacturing334511 | — | ● ACTIVE |
| BCBarton Corporation of Salisbury | Seabrook, NH | Wood Product Manufacturing321920 | — | ● ACTIVE |
Bascom-turner Instruments, INC. | Norwood, MA | Computer and Electronic Product Manufacturing334516 | — | ● ACTIVE |
B&b Engineering Corporation | Georgetown, MA | Computer and Electronic Product Manufacturing334290 | — | ● ACTIVE |
Behlke Power Electronics LLC | Billerica, MA | Electrical Equipment, Appliance & Component Manufacturing335999 | — | ● ACTIVE |
| BDBelliveau Dennis | Candia, NH | Furniture and Related Product Manufacturing337127 | — | ● ACTIVE |
| BIBelmont Instrument LLC | Billerica, MA | Miscellaneous Manufacturing339112 | — | ● ACTIVE |
Benchmark Technologies, INC | Lynnfield, MA | Chemical Manufacturing325992 | — | ● ACTIVE |
| BGBendon Gear and Machine, INC | Rockland, MA | Fabricated Metal Product Manufacturing332710 | 20–99 | ● ACTIVE |
| BFBertolino Foods | Peabody, MA | Food Manufacturing311612 | 100–499 | ● ACTIVE |
Best Machine INC | Fremont, NH | Fabricated Metal Product Manufacturing332710 | — | ● ACTIVE |
| BDBeta Dyne, INC. | Bridgewater, MA | Computer and Electronic Product Manufacturing334418 | — | ● ACTIVE |
Biophysics Pharma INC | Peabody, MA | Chemical Manufacturing325412 | — | ● ACTIVE |
| BPBird-johnson Propeller Company, LLC | Walpole, MA | Fabricated Metal Product Manufacturing332999 | 100–499 | ● ACTIVE |
Bk Medical Holding Company, INC. | Burlington, MA | Electrical Equipment, Appliance & Component Manufacturing335999 | — | ● ACTIVE |
Blackburn Energy INC | Rowley, MA | Transportation Equipment Manufacturing336320 | — | ● ACTIVE |
Blauer Manufacturing Co., INC. | Boston, MA | Apparel Manufacturing315250 | — | ● ACTIVE |
Bloomer Health Tech INC | Boston, MA | Computer and Electronic Product Manufacturing334510 | — | ● ACTIVE |
| BDBlue Dolphin Screenprint, INC. | Somersworth, NH | Printing and Related Support Activities323113 | — | ● ACTIVE |
Bluepoint Engineering LLC | Abington, MA | Transportation Equipment Manufacturing336611 | — | ● ACTIVE |
Blue Water Autonomy, INC. | Lexington, MA | Transportation Equipment Manufacturing336611 | — | ● ACTIVE |
Boca Scientific INC | Dedham, MA | Chemical Manufacturing325414 | — | ● ACTIVE |
Boston Adhesives LLC | Chelmsford, MA | Chemical Manufacturing325520 | — | ● ACTIVE |