| HIHP Inc. Masachusettes - Burlington | Burlington | MA | Computer and Electronic Product Manufacturing334111 | 100-499 | ◐ LIKELY ACTIVE |
| HCHudson - CPI Radant Technologies Division Inc. | Hudson | MA | Computer and Electronic Product Manufacturing334220 | 20-99 | ◐ LIKELY ACTIVE |
IPG Photonics - 225 Cedar Hill | Marlborough | MA | Computer and Electronic Product Manufacturing334413 | 20-99 | ◐ LIKELY ACTIVE |
IPG Photonics - 257 Cedar Hill | Marlborough | MA | Computer and Electronic Product Manufacturing334413 | 20-99 | ◐ LIKELY ACTIVE |
IPG Photonics - 259 Cedar Hill | Marlborough | MA | Computer and Electronic Product Manufacturing334413 | 100-499 | ◐ LIKELY ACTIVE |
IPG Photonics - 377 Simarano | Marlborough | MA | Computer and Electronic Product Manufacturing334413 | 100-499 | ◐ LIKELY ACTIVE |
| IIIXYS IC - Littelfuse | Beverly | MA | Computer and Electronic Product Manufacturing334413 | 100-499 | ◐ LIKELY ACTIVE |
| KIKhoury Industries Incorporated | Bellingham | MA | Computer and Electronic Product Manufacturing334515 | — | ◐ LIKELY ACTIVE |
| KUKpr Us, LLC | Chicopee | MA | Computer and Electronic Product Manufacturing334510 | 100-499 | ◐ LIKELY ACTIVE |
| LSLanthanide Solutions INC. | Marlborough | MA | Computer and Electronic Product Manufacturing334419 | — | ◐ LIKELY ACTIVE |
| LLLazarus LLC | Cambridge | MA | Computer and Electronic Product Manufacturing334511 | — | ◐ LIKELY ACTIVE |
| LALlg Associates LLC | Sudbury | MA | Computer and Electronic Product Manufacturing334419 | — | ◐ LIKELY ACTIVE |
| LMLockheed Martin Corporation US MA Marion Front St (2448) | Marion | MA | Computer and Electronic Product Manufacturing334511 | 20-99 | ◐ LIKELY ACTIVE |
| LRLocus Robotics Corp | Wilmington | MA | Computer and Electronic Product Manufacturing334111 | 100-499 | ◐ LIKELY ACTIVE |
| LLowell | Lowell | MA | Computer and Electronic Product Manufacturing334220 | 100-499 | ◐ LIKELY ACTIVE |
| MMa | Concord | MA | Computer and Electronic Product Manufacturing334511 | 1-19 | ◐ LIKELY ACTIVE |
| MTMa121 Tmc | Peabody | MA | Computer and Electronic Product Manufacturing334519 | 100-499 | ◐ LIKELY ACTIVE |
| MSMa169 Spectro Scientific | Chelmsford | MA | Computer and Electronic Product Manufacturing334516 | 20-99 | ◐ LIKELY ACTIVE |
| MAMacomber and Foote LLC | Fall River | MA | Computer and Electronic Product Manufacturing334419 | — | ◐ LIKELY ACTIVE |
| MFMA, Fall River - 275 Martine St. (IMS-M) | Fallriver | MA | Computer and Electronic Product Manufacturing334511 | 20-99 | ◐ LIKELY ACTIVE |
| MMMarlborough MA | Marlborough | MA | Computer and Electronic Product Manufacturing334511 | 20-99 | ◐ LIKELY ACTIVE |
| MTMA Tewksbury | Tewskbury | MA | Computer and Electronic Product Manufacturing334513 | 20-99 | ◐ LIKELY ACTIVE |
| MTMetaphos Technology, INC. | Cambridge | MA | Computer and Electronic Product Manufacturing334413 | — | ◐ LIKELY ACTIVE |
| MPMettler-toledo Process Analytics, INC. | Billerica | MA | Computer and Electronic Product Manufacturing334513 | — | ◐ LIKELY ACTIVE |
| MTMicrochip Technology Inc Westborough MA | Westborough | MA | Computer and Electronic Product Manufacturing334413 | 20-99 | ◐ LIKELY ACTIVE |
| MFMicrosemi Frequency and Time CORP | Beverly | MA | Computer and Electronic Product Manufacturing334220 | — | ◐ LIKELY ACTIVE |
| MIMicroTek, Inc. | Chicopee | MA | Computer and Electronic Product Manufacturing334419 | 20-99 | ◐ LIKELY ACTIVE |
| M2MKS 2 Tech | Andover | MA | Computer and Electronic Product Manufacturing334413 | 100-499 | ◐ LIKELY ACTIVE |
| MSMotorola Solutions Inc. | Framingham | MA | Computer and Electronic Product Manufacturing334220 | 20-99 | ◐ LIKELY ACTIVE |
| MIMultiscale Innovations LLC | Lincoln | MA | Computer and Electronic Product Manufacturing334516 | — | ◐ LIKELY ACTIVE |
| NRNational Resource Management INC | Canton | MA | Computer and Electronic Product Manufacturing334513 | — | ◐ LIKELY ACTIVE |
| NMNelson Miller Group-Fitchburg MA | Fitchburg | MA | Computer and Electronic Product Manufacturing334111 | 20-99 | ◐ LIKELY ACTIVE |
| NINortekusa, INC | Boston | MA | Computer and Electronic Product Manufacturing334511 | — | ◐ LIKELY ACTIVE |
| NMNorwood, MA. | Norwood | MA | Computer and Electronic Product Manufacturing334413 | 20-99 | ◐ LIKELY ACTIVE |
| NINotch INC. | Cambridge | MA | Computer and Electronic Product Manufacturing334220 | — | ◐ LIKELY ACTIVE |
| PTParallel Technologies, INC. | Randolph | MA | Computer and Electronic Product Manufacturing334118 | — | ◐ LIKELY ACTIVE |
| PRPhilips Rs North America LLC | Cambridge | MA | Computer and Electronic Product Manufacturing334510 | — | ◐ LIKELY ACTIVE |
| PCPittsfield Communications Systems INC | Pittsfield | MA | Computer and Electronic Product Manufacturing334290 | — | ◐ LIKELY ACTIVE |
| PEPowell Electronics INC | Marlborough | MA | Computer and Electronic Product Manufacturing334417 | — | ◐ LIKELY ACTIVE |
| PProdrive | Canton | MA | Computer and Electronic Product Manufacturing334111 | 20-99 | ◐ LIKELY ACTIVE |
| PDProtein Dynamic Solutions, INC. | Wakefield | MA | Computer and Electronic Product Manufacturing334516 | — | ◐ LIKELY ACTIVE |
| PEP-tech Engineering LLC | Woburn | MA | Computer and Electronic Product Manufacturing334418 | — | ◐ LIKELY ACTIVE |
| PSPulse Systems, INC. | South Easton | MA | Computer and Electronic Product Manufacturing334511 | — | ◐ LIKELY ACTIVE |
| QNQinetiq, NA Waltham | Waltham | MA | Computer and Electronic Product Manufacturing334511 | 20-99 | ◐ LIKELY ACTIVE |
| QCQorvo - Chelmsford (Apollo Dr) | Chelmsford | MA | Computer and Electronic Product Manufacturing334413 | 1-19 | ◐ LIKELY ACTIVE |
| QCQorvo - Chelmsford, MA | Chelmsford | MA | Computer and Electronic Product Manufacturing334413 | 100-499 | ◐ LIKELY ACTIVE |
| RMRaytheon - Marlborough | Marlborough | MA | Computer and Electronic Product Manufacturing334511 | 500+ | ◐ LIKELY ACTIVE |
| RCRemotereality CORP | Westborough | MA | Computer and Electronic Product Manufacturing334310 | — | ◐ LIKELY ACTIVE |
| RCRichardson Canvys | Marlborough | MA | Computer and Electronic Product Manufacturing334419 | 20-99 | ◐ LIKELY ACTIVE |
| SISaab, INC | Quincy | MA | Computer and Electronic Product Manufacturing334419 | — | ◐ LIKELY ACTIVE |