 Antenna Research Associates, Incorporated | Middleboro | MA | Computer and Electronic Product Manufacturing334220 | — | ◇ UNVERIFIED |
 Associated Environmental Systems, INC. | Ayer | MA | Computer and Electronic Product Manufacturing334519 | — | ◇ UNVERIFIED |
| ABAstrea Bioseparations US INC | Canton | MA | Computer and Electronic Product Manufacturing334516 | — | ◇ UNVERIFIED |
| ANAtlantic Nuclear Corporation | Rockland | MA | Computer and Electronic Product Manufacturing334513 | — | ◇ UNVERIFIED |
| BSBae Systems Info & Electronic Sys INC | Plymouth | MA | Computer and Electronic Product Manufacturing334419 | — | ◇ UNVERIFIED |
| BSBae Systems Information & Electronic Systems Integration INC | Plymouth | MA | Computer and Electronic Product Manufacturing334419 | — | ◇ UNVERIFIED |
| BSBae Systems-ocean Systems | Braintree | MA | Computer and Electronic Product Manufacturing334419 | — | ◇ UNVERIFIED |
| BLBarry Lavoie | Lowell | MA | Computer and Electronic Product Manufacturing334511 | — | ◇ UNVERIFIED |
| BIBgi, Incorporated | Waltham | MA | Computer and Electronic Product Manufacturing334519 | — | ◇ UNVERIFIED |
| BSBlue Sky Center | Burlington | MA | Computer and Electronic Product Manufacturing334111 | — | ◇ UNVERIFIED |
| BBose | Framingham | MA | Computer and Electronic Product Manufacturing334220 | — | ◇ UNVERIFIED |
| BRBose Reservoir Facility | Framingham | MA | Computer and Electronic Product Manufacturing334310 | — | ◇ UNVERIFIED |
 Boston Scientific | Burlington | MA | Computer and Electronic Product Manufacturing334510 | — | ◇ UNVERIFIED |
| BCBusek Co., Inc. | Natick | MA | Computer and Electronic Product Manufacturing334419 | — | ◇ UNVERIFIED |
| CAC and K Components LLC | Waltham | MA | Computer and Electronic Product Manufacturing334419 | — | ◇ UNVERIFIED |
| CBCanton Bronze Aluminum | Canton | MA | Computer and Electronic Product Manufacturing334290 | — | ◇ UNVERIFIED |
| CECapybara Energy | Woburn | MA | Computer and Electronic Product Manufacturing334416 | — | ◇ UNVERIFIED |
| CACharge Analytics LLC | Boxford | MA | Computer and Electronic Product Manufacturing334519 | — | ◇ UNVERIFIED |
| CEClement & Elizabeth H. Moritz Management Trust | Acton | MA | Computer and Electronic Product Manufacturing334419 | — | ◇ UNVERIFIED |
| C1Cogmedix 127 | West Boylston | MA | Computer and Electronic Product Manufacturing334419 | — | ◇ UNVERIFIED |
| CWColonial Wire Cable | Lowell | MA | Computer and Electronic Product Manufacturing334419 | — | ◇ UNVERIFIED |
| CRCommercial Real Estate | Tewksbury | MA | Computer and Electronic Product Manufacturing334419 | — | ◇ UNVERIFIED |
| CIContronautics, Incorporated | Hudson | MA | Computer and Electronic Product Manufacturing334512 | — | ◇ UNVERIFIED |
| CIConvectronics, INC. | Haverhill | MA | Computer and Electronic Product Manufacturing334519 | — | ◇ UNVERIFIED |
| CCorindus | Auburndale | MA | Computer and Electronic Product Manufacturing334510 | — | ◇ UNVERIFIED |
| CCorindus | Waltham | MA | Computer and Electronic Product Manufacturing334510 | — | ◇ UNVERIFIED |
| CTCowbell Technologies, Inc. | Hudson | MA | Computer and Electronic Product Manufacturing334310 | — | ◇ UNVERIFIED |
| COCubby Oil and Energy | Wilmington | MA | Computer and Electronic Product Manufacturing334413 | — | ◇ UNVERIFIED |
| DZDay Zero Diagnostics | Watertown | MA | Computer and Electronic Product Manufacturing334516 | — | ◇ UNVERIFIED |
| DED&d Electrical Contractors, INC. | Billerica | MA | Computer and Electronic Product Manufacturing334510 | — | ◇ UNVERIFIED |
| DEDesco Electronics INC | Plainville | MA | Computer and Electronic Product Manufacturing334220 | — | ◇ UNVERIFIED |
| DMDesktop Metal INC | Woburn | MA | Computer and Electronic Product Manufacturing334118 | — | ◇ UNVERIFIED |
| DIDistron INC | North Attleboro | MA | Computer and Electronic Product Manufacturing334418 | — | ◇ UNVERIFIED |
| DIDomitek, INC. | Worcester | MA | Computer and Electronic Product Manufacturing334118 | — | ◇ UNVERIFIED |
| DMDudley Multiservices INC | Roxbury | MA | Computer and Electronic Product Manufacturing334220 | — | ◇ UNVERIFIED |
| ERElectro Rent CORP | Billerica | MA | Computer and Electronic Product Manufacturing334111 | — | ◇ UNVERIFIED |
| E2Emc - 228 South St | Hopkinton | MA | Computer and Electronic Product Manufacturing334112 | — | ◇ UNVERIFIED |
| ECEmc Corporation | Hopkinton | MA | Computer and Electronic Product Manufacturing334111 | — | ◇ UNVERIFIED |
| ETEmc Test Design LLC | Newton | MA | Computer and Electronic Product Manufacturing334515 | — | ◇ UNVERIFIED |
| ECEmd Chemicals INC | Woburn | MA | Computer and Electronic Product Manufacturing334516 | — | ◇ UNVERIFIED |
| EMEmd Millipore CORP | Bedford | MA | Computer and Electronic Product Manufacturing334516 | — | ◇ UNVERIFIED |
| EMEmd Millipore CORP | Stoughton | MA | Computer and Electronic Product Manufacturing334513 | — | ◇ UNVERIFIED |
| EMEmd Millipore CORP - Milligen Div | Burlington | MA | Computer and Electronic Product Manufacturing334516 | — | ◇ UNVERIFIED |
| ELEssential Life Solutions LTD | Stoughton | MA | Computer and Electronic Product Manufacturing334516 | — | ◇ UNVERIFIED |
| FNFei North America Nanoport | Peabody | MA | Computer and Electronic Product Manufacturing334413 | — | ◇ UNVERIFIED |
| FCFesto Corporation | Billerica | MA | Computer and Electronic Product Manufacturing334512 | — | ◇ UNVERIFIED |
| FAFoxboro Analytical | Attleboro | MA | Computer and Electronic Product Manufacturing334513 | — | ◇ UNVERIFIED |
| GAGalvanic Applied Sciences U.s.a, INC. | Lowell | MA | Computer and Electronic Product Manufacturing334513 | — | ◇ UNVERIFIED |
| GAGeneral Atomics Electromagnetic Systems Ems | Acton | MA | Computer and Electronic Product Manufacturing334511 | — | ◇ UNVERIFIED |
| GCGt Crystal Systems, LLC | Salem | MA | Computer and Electronic Product Manufacturing334419 | — | ◇ UNVERIFIED |
