 High Precision Devices INC a Formfactor CO | Woburn | MA | Computer and Electronic Product Manufacturing334516 | — | ◇ UNVERIFIED |
| HHHitachi High Tech America INC | Westford | MA | Computer and Electronic Product Manufacturing334516 | — | ◇ UNVERIFIED |
| HHHolt Hill Audio, LLC | Andover | MA | Computer and Electronic Product Manufacturing334310 | — | ◇ UNVERIFIED |
| HGHunter Guages | Yarmouth Port | MA | Computer and Electronic Product Manufacturing334511 | — | ◇ UNVERIFIED |
| IIndikon | Somerville | MA | Computer and Electronic Product Manufacturing334515 | — | ◇ UNVERIFIED |
| ISInnov-x Systems, INC. | Woburn | MA | Computer and Electronic Product Manufacturing334516 | — | ◇ UNVERIFIED |
| ILInstrumentation Laboratory | Peabody | MA | Computer and Electronic Product Manufacturing334516 | — | ◇ UNVERIFIED |
| IAIntel Americas INC at Rinchem Csc 20 Marlborough | Marlborough | MA | Computer and Electronic Product Manufacturing334413 | — | ◇ UNVERIFIED |
| IMInteractive Motion Technologies, INC. | Watertown | MA | Computer and Electronic Product Manufacturing334510 | — | ◇ UNVERIFIED |
| IMIron Mountain Records Management | Northborough | MA | Computer and Electronic Product Manufacturing334413 | — | ◇ UNVERIFIED |
| JEJcr Electronics | Lynn | MA | Computer and Electronic Product Manufacturing334419 | — | ◇ UNVERIFIED |
| JCJohnson Controls INC. | Boston | MA | Computer and Electronic Product Manufacturing334515 | — | ◇ UNVERIFIED |
| KLKernel, LLC | Seekonk | MA | Computer and Electronic Product Manufacturing334290 | — | ◇ UNVERIFIED |
| KCKla Corporation | Westwood | MA | Computer and Electronic Product Manufacturing334413 | — | ◇ UNVERIFIED |
 Klein Marine Systems | Newburyport | MA | Computer and Electronic Product Manufacturing334511 | — | ◇ UNVERIFIED |
| KTKonarka Technologies | Lowell | MA | Computer and Electronic Product Manufacturing334413 | — | ◇ UNVERIFIED |
| LCL3 Communications Essco INC | Concord | MA | Computer and Electronic Product Manufacturing334220 | — | ◇ UNVERIFIED |
| LOL3harris Oceanserver INC | Fall River | MA | Computer and Electronic Product Manufacturing334511 | — | ◇ UNVERIFIED |
| LILase Innovation INC | Woburn | MA | Computer and Electronic Product Manufacturing334516 | — | ◇ UNVERIFIED |
| LRLee Realty Trust Dba Lrc LLC | Danvers | MA | Computer and Electronic Product Manufacturing334419 | — | ◇ UNVERIFIED |
| LLightmatter | Boston | MA | Computer and Electronic Product Manufacturing334413 | — | ◇ UNVERIFIED |
| LCLuxtec CORP | West Boylston | MA | Computer and Electronic Product Manufacturing334510 | — | ◇ UNVERIFIED |
| MEMagnetika East | Marlborough | MA | Computer and Electronic Product Manufacturing334416 | — | ◇ UNVERIFIED |
| MAMc Assembly LLC | Winchester | MA | Computer and Electronic Product Manufacturing334418 | — | ◇ UNVERIFIED |
| MEMcf Electronic Services | Lowell | MA | Computer and Electronic Product Manufacturing334418 | — | ◇ UNVERIFIED |
| MIMedtronic INC | Newtonville | MA | Computer and Electronic Product Manufacturing334510 | — | ◇ UNVERIFIED |
| MIMedtronic INC | Bedford | MA | Computer and Electronic Product Manufacturing334510 | — | ◇ UNVERIFIED |
| MCMegatech Corporation | Tewksbury | MA | Computer and Electronic Product Manufacturing334513 | — | ◇ UNVERIFIED |
| MWMetamagnetics Westborough | Westborough | MA | Computer and Electronic Product Manufacturing334419 | — | ◇ UNVERIFIED |
| MMeter | Cambridge | MA | Computer and Electronic Product Manufacturing334513 | — | ◇ UNVERIFIED |
| MIMicromize INC | Cambridge | MA | Computer and Electronic Product Manufacturing334412 | — | ◇ UNVERIFIED |
| MRMidland Ross CORP | Cambridge | MA | Computer and Electronic Product Manufacturing334419 | — | ◇ UNVERIFIED |
| MRMj Research, INC. | Waltham | MA | Computer and Electronic Product Manufacturing334513 | — | ◇ UNVERIFIED |
| NRNat Regional Office | Marlborough | MA | Computer and Electronic Product Manufacturing334516 | — | ◇ UNVERIFIED |
| NCNew Commonwealth Center | Boston | MA | Computer and Electronic Product Manufacturing334220 | — | ◇ UNVERIFIED |
| OTOckers Technologies | Middleboro | MA | Computer and Electronic Product Manufacturing334111 | — | ◇ UNVERIFIED |
| ODOpus Digital, INC. | Swampscott | MA | Computer and Electronic Product Manufacturing334614 | — | ◇ UNVERIFIED |
| PCPancon Corporation | East Taunton | MA | Computer and Electronic Product Manufacturing334290 | — | ◇ UNVERIFIED |
| PPPatrol PC | Attleboro Falls | MA | Computer and Electronic Product Manufacturing334418 | — | ◇ UNVERIFIED |
| PTPersimmon Technologies | Tyngsborough | MA | Computer and Electronic Product Manufacturing334413 | — | ◇ UNVERIFIED |
| PIPhoenix Infrared CORP. | Lowell | MA | Computer and Electronic Product Manufacturing334516 | — | ◇ UNVERIFIED |
| PPPi Physik Instrumente | Hopkinton | MA | Computer and Electronic Product Manufacturing334519 | — | ◇ UNVERIFIED |
| PEPollak Engineered Products | Boston | MA | Computer and Electronic Product Manufacturing334419 | — | ◇ UNVERIFIED |
| PDPrana Distribution | Gloucester | MA | Computer and Electronic Product Manufacturing334310 | — | ◇ UNVERIFIED |
| PDPrana Distribution | Cambridge | MA | Computer and Electronic Product Manufacturing334310 | — | ◇ UNVERIFIED |
| PSPrecision Sensing Devices INC | Medfield | MA | Computer and Electronic Product Manufacturing334516 | — | ◇ UNVERIFIED |
| PTProdrive Technologies | Canton | MA | Computer and Electronic Product Manufacturing334418 | — | ◇ UNVERIFIED |
| PPPss Polymers | Amherst | MA | Computer and Electronic Product Manufacturing334516 | — | ◇ UNVERIFIED |
| QIQorvo INC | Chelmsford | MA | Computer and Electronic Product Manufacturing334413 | — | ◇ UNVERIFIED |
| QIQualcomm Incorporated | Boxborough | MA | Computer and Electronic Product Manufacturing334413 | — | ◇ UNVERIFIED |
