| MLMicrosense, LLC | Lowell | MA | Computer and Electronic Product Manufacturing334413 | — | ◐ LIKELY ACTIVE |
| NPNeedletech Products | North Attleborough | MA | Computer and Electronic Product Manufacturing334417 | — | ◐ LIKELY ACTIVE |
| OCOnset Computer Corporation | Bourne | MA | Computer and Electronic Product Manufacturing334418 | 100-499 | ◐ LIKELY ACTIVE |
Sensing Systems Corporation | North Dartmouth | MA | Computer and Electronic Product Manufacturing334513 | 1-19 | ◐ LIKELY ACTIVE |
| TMTechnical Manufacturing CORP | Peabody | MA | Computer and Electronic Product Manufacturing334519 | — | ◐ LIKELY ACTIVE |
| TTTell Tool INC | Westfield | MA | Machinery Manufacturing333515 | 100-499 | ▲ REPORTED CLOSED |
| TITemp-pro Incorporated | Northampton | MA | Computer and Electronic Product Manufacturing334513 | 20-99 | ◐ LIKELY ACTIVE |
| UEUltra Electronics Ocean Systems INC. | Braintree | MA | Fabricated Metal Product Manufacturing332323 | 500+ | ◐ LIKELY ACTIVE |
Zeptive, INC | Andover | MA | Computer and Electronic Product Manufacturing334519 | 1-19 | ◐ LIKELY ACTIVE |
| ADAnalog Devices Manufacturing | Wilmington | MA | Computer and Electronic Product Manufacturing334413 | — | ◐ LIKELY ACTIVE |
| CECleanpart East | Southbridge | MA | Fabricated Metal Product Manufacturing332813 | — | ◐ LIKELY ACTIVE |
| CMComposite Modules INC | Attleboro | MA | Computer and Electronic Product Manufacturing334419 | — | ◐ LIKELY ACTIVE |
| CICortron INC | Lowell | MA | Computer and Electronic Product Manufacturing334118 | 20-99 | ◐ LIKELY ACTIVE |
| D2D 2 Incorporated | Buzzards Bay | MA | Computer and Electronic Product Manufacturing334519 | 1-19 | ◐ LIKELY ACTIVE |
| GIGenrad INC | Concord | MA | Computer and Electronic Product Manufacturing334519 | 1-19 | ◐ LIKELY ACTIVE |
| LSLeidos Security Detection & Automation INC | Tewksbury | MA | Computer and Electronic Product Manufacturing334517 | — | ◐ LIKELY ACTIVE |
| MSMaterials Systems INC | Littleton | MA | Computer and Electronic Product Manufacturing334510 | — | ◐ LIKELY ACTIVE |
| MAMc Assembly | Billerica | MA | Computer and Electronic Product Manufacturing334418 | — | ◐ LIKELY ACTIVE |
| VCVicor CORP | Andover | MA | Computer and Electronic Product Manufacturing334419 | — | ◐ LIKELY ACTIVE |
| AAerovox | New Bedford | MA | Computer and Electronic Product Manufacturing334414 | — | ◇ UNVERIFIED |
2ek Enterprise INC. | Newton Highlands | MA | Computer and Electronic Product Manufacturing334511 | — | ◐ LIKELY ACTIVE |
Akoya Biosciences, INC | Marlborough | MA | Computer and Electronic Product Manufacturing334516 | — | ◐ LIKELY ACTIVE |
Aved Electronics, LLC | North Billerica | MA | Computer and Electronic Product Manufacturing334419 | — | ◐ LIKELY ACTIVE |
Bluefusion INC. | Natick | MA | Computer and Electronic Product Manufacturing334511 | — | ◐ LIKELY ACTIVE |
| CAChasm Advanced Materials, Inc. - Canton | Canton | MA | Computer and Electronic Product Manufacturing334412 | 1-19 | ◐ LIKELY ACTIVE |
| CICircuithub, INC | S Deerfield | MA | Computer and Electronic Product Manufacturing334418 | — | ◐ LIKELY ACTIVE |
| CCCognex CORP | Natick | MA | Computer and Electronic Product Manufacturing334513 | 500+ | ◐ LIKELY ACTIVE |
Combined Ingenuity INC | Newtonville | MA | Computer and Electronic Product Manufacturing334510 | — | ▲ REPORTED CLOSED |
Embedded Now INC | Holliston | MA | Computer and Electronic Product Manufacturing334111 | — | ◐ LIKELY ACTIVE |
| ESEvident Scientific | Waltham | MA | Computer and Electronic Product Manufacturing334519 | 100-499 | ◐ LIKELY ACTIVE |
Extropic CORP. | Watertown | MA | Computer and Electronic Product Manufacturing334413 | — | ◐ LIKELY ACTIVE |
| GEGeneral Electric Aircraft Engines | Lynn | MA | Computer and Electronic Product Manufacturing334515 | — | ◐ LIKELY ACTIVE |
Greene Lyon Group INC | Beverly | MA | Computer and Electronic Product Manufacturing334413 | — | ◐ LIKELY ACTIVE |
Innovations in Optics, INC | Woburn | MA | Computer and Electronic Product Manufacturing334419 | — | ◐ LIKELY ACTIVE |
| MBMassachusetts Bay Technologies, INC | Stoughton | MA | Computer and Electronic Product Manufacturing334413 | 1-19 | ◐ LIKELY ACTIVE |
| MDMicrowave Development Laboratories, INC. | Needham Heights | MA | Computer and Electronic Product Manufacturing334419 | 20-99 | ◐ LIKELY ACTIVE |
Nine Diagnostics, INC | Cambridge | MA | Computer and Electronic Product Manufacturing334516 | — | ◐ LIKELY ACTIVE |
Optics11 Life INC. | Boston | MA | Computer and Electronic Product Manufacturing334519 | — | ◐ LIKELY ACTIVE |
| PTPersimmon Technologies Corporation | Bedford | MA | Computer and Electronic Product Manufacturing334413 | 100-499 | ◐ LIKELY ACTIVE |
| PSPhotonis Scientific, Inc. | Sturbridge | MA | Computer and Electronic Product Manufacturing334419 | 20-99 | ◐ LIKELY ACTIVE |
| RIRevvity INC | Waltham | MA | Computer and Electronic Product Manufacturing334510 | 20-99 | ◐ LIKELY ACTIVE |
| SCSeminex Corporation | Danvers | MA | Computer and Electronic Product Manufacturing334413 | 1-19 | ◐ LIKELY ACTIVE |
| TITeradyne, INC. | North Reading | MA | Computer and Electronic Product Manufacturing334515 | — | ◐ LIKELY ACTIVE |
| TPTransom Post OpCo, LLC dba Bose Professional | Hopkinton | MA | Computer and Electronic Product Manufacturing334310 | 100-499 | ◐ LIKELY ACTIVE |
Trivedi Advanced Technologies LLC | Northborough | MA | Computer and Electronic Product Manufacturing334519 | — | ◐ LIKELY ACTIVE |
| VVVata Verks INC | Arlington | MA | Computer and Electronic Product Manufacturing334514 | — | ◐ LIKELY ACTIVE |
Vizgen INC | Cambridge | MA | Computer and Electronic Product Manufacturing334516 | — | ◐ LIKELY ACTIVE |
| WTWaters Technologies Corporation | Milford | MA | Computer and Electronic Product Manufacturing334516 | 500+ | ◐ LIKELY ACTIVE |
Winchester Systems INC. | Littleton | MA | Computer and Electronic Product Manufacturing334112 | — | ◐ LIKELY ACTIVE |
Zero Asic CORP | Lexington | MA | Computer and Electronic Product Manufacturing334413 | — | ◐ LIKELY ACTIVE |