| GRGlines & Rhodes INC | Attleboro | MA | Primary Metal Manufacturing331492 | — | ◐ LIKELY ACTIVE |
| GSGranite State Concrete | Westford | MA | Nonmetallic Mineral Product Manufacturing327320 | — | ◐ LIKELY ACTIVE |
Hardigg Industries | Deerfield | MA | Plastics and Rubber Products Manufacturing326199 | — | ◐ LIKELY ACTIVE |
| HTHeat Transfer Products | Freetown | MA | Machinery Manufacturing333310 | — | ◐ LIKELY ACTIVE |
| HWHighline Warren LLC | Leominster | MA | Chemical Manufacturing325612 | — | ◐ LIKELY ACTIVE |
| HTHolden Trap Rock CO | Holden | MA | Petroleum and Coal Products Manufacturing324121 | — | ◐ LIKELY ACTIVE |
| HVHollingsworth & Vose | East Walpole | MA | Paper Manufacturing322120 | 500+ | ◐ LIKELY ACTIVE |
| HWHueson Wire & Cable LLC | Grafton | MA | Electrical Equipment, Appliance & Component Manufacturing335929 | 1-19 | ◐ LIKELY ACTIVE |
| HIHyer Industries Incorporated | Pembroke | MA | Machinery Manufacturing333997 | 20-99 | ◐ LIKELY ACTIVE |
| ICInnovative Chemical Products | Andover | MA | Chemical Manufacturing325510 | — | ◐ LIKELY ACTIVE |
| ITItw Tacc | Rockland | MA | Chemical Manufacturing325520 | — | ◐ LIKELY ACTIVE |
| JAJain Americas - Nucedar Mills | Chicopee | MA | Chemical Manufacturing325211 | — | ◐ LIKELY ACTIVE |
| JAJames Austin Company | Ludlow | MA | Chemical Manufacturing325188 | — | ◐ LIKELY ACTIVE |
| JMJames Monroe Wire and Cable CORP | South Lancaster | MA | Electrical Equipment, Appliance & Component Manufacturing335929 | 100-499 | ◐ LIKELY ACTIVE |
| JMJg Maclellan Concrete CO INC | Wakefield | MA | Nonmetallic Mineral Product Manufacturing327320 | — | ◐ LIKELY ACTIVE |
| JMJg Mclellan Concrete | Lowell | MA | Nonmetallic Mineral Product Manufacturing327320 | — | ◐ LIKELY ACTIVE |
| JMJohnson Matthey Pharma Services | North Andover | MA | Chemical Manufacturing325412 | — | ◐ LIKELY ACTIVE |
| JMJosephs Middle East Bakery | Lawrence | MA | Food Manufacturing311812 | 100-499 | ◐ LIKELY ACTIVE |
| JWJudd Wire INC | Montague (turners Falls) | MA | Primary Metal Manufacturing331420 | — | ◐ LIKELY ACTIVE |
| KMKoch Membrane | Wilmington | MA | Machinery Manufacturing333294 | — | ◐ LIKELY ACTIVE |
| L3L 3 Maritime Systems | Newburyport | MA | Fabricated Metal Product Manufacturing332813 | — | ◐ LIKELY ACTIVE |
| LLLawrence Lynch CORP | Falmouth | MA | Petroleum and Coal Products Manufacturing324121 | 20-99 | ◐ LIKELY ACTIVE |
| LSLeidos Security Detection & Automation INC | Tewksbury | MA | Computer and Electronic Product Manufacturing334517 | — | ◐ LIKELY ACTIVE |
| LCLewcott Corporation | Millbury | MA | Textile Mills313320 | — | ◐ LIKELY ACTIVE |
Life Technologies Applied Biosystems | Bedford | MA | Chemical Manufacturing325211 | — | ◐ LIKELY ACTIVE |
| LILs Industries | New Bedford | MA | Nonmetallic Mineral Product Manufacturing327320 | — | ◐ LIKELY ACTIVE |
| LILytron INC | Woburn | MA | Fabricated Metal Product Manufacturing332410 | — | ◐ LIKELY ACTIVE |
| MMMajilite Manufacturing INC | Dracut | MA | Textile Mills313221 | — | ◐ 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 |
Metalor Technologies USA | Attleboro | MA | Primary Metal Manufacturing331491 | — | ◐ LIKELY ACTIVE |
| MAMetso Automation USA INC | Shrewsbury, Town of | MA | Fabricated Metal Product Manufacturing332911 | — | ◐ LIKELY ACTIVE |
| MSMexichem Specialty Compounds INC | Leominster | MA | Chemical Manufacturing325211 | — | ◐ LIKELY ACTIVE |
| MPMiles Press INC | Auburn | MA | Printing and Related Support Activities323117 | 20-99 | ◐ LIKELY ACTIVE |
| MIMks Instruments | Lawrence | MA | Machinery Manufacturing333242 | — | ◐ LIKELY ACTIVE |
| MCMoseley CORP the | Franklin | MA | Miscellaneous Manufacturing339950 | 1-19 | ◐ LIKELY ACTIVE |
Nalco Company at Afc Cable Systems INC | New Bedford | MA | Electrical Equipment, Appliance & Component Manufacturing335929 | — | ◐ LIKELY ACTIVE |
| NFNational Fiber Technology | Lawrence | MA | Textile Mills313110 | 1-19 | ◐ LIKELY ACTIVE |
| NPNe Peptide LLC Aka Vivitide | Gardner | MA | Chemical Manufacturing325411 | — | ◐ LIKELY ACTIVE |
| NANewark America Paperboard Mill | Fitchburg | MA | Paper Manufacturing322130 | — | ◐ LIKELY ACTIVE |
| NWNorthland Willette INC | Plainville | MA | Electrical Equipment, Appliance & Component Manufacturing335999 | 20-99 | ◐ LIKELY ACTIVE |
| NNoveon | Leominster | MA | Chemical Manufacturing325211 | — | ◐ LIKELY ACTIVE |
| NLNye Lubricants INC | Fairhaven | MA | Textile Mills313113 | 100-499 | ◐ LIKELY ACTIVE |
| OSOcean Spray Cranberries | Middleborough | MA | Food Manufacturing311411 | — | ◐ LIKELY ACTIVE |
| OROldcastle Retail INC | Oxford | MA | Nonmetallic Mineral Product Manufacturing327390 | — | ◐ LIKELY ACTIVE |
| OAOlympic Adhesives | Norwood, Town of | MA | Chemical Manufacturing325520 | — | ◐ LIKELY ACTIVE |
| OIOmg INC | Agawam | MA | Fabricated Metal Product Manufacturing332722 | — | ◐ LIKELY ACTIVE |
| OSOmnova Solutions INC | Fitchburg, City of | MA | Chemical Manufacturing325188 | — | ◐ LIKELY ACTIVE |
| OSOnyx Specialty Papers INC - Willow Mill | Lee | MA | Paper Manufacturing322110 | — | ◐ LIKELY ACTIVE |
| PFPalmer Foundry | Palmer | MA | Primary Metal Manufacturing331524 | — | ◐ LIKELY ACTIVE |