International Rectifier Hirel Products, INC. | Leominster | MA | Computer and Electronic Product Manufacturing334413 | 100-499 | ● ACTIVE |
Broomfield Laboratories INC | Leominster | MA | Machinery Manufacturing333517 | — | ● ACTIVE |
| FPFirst Plastics CORP. | Leominster | MA | Plastics and Rubber Products Manufacturing326199 | 20-99 | ● ACTIVE |
Gradient Design & Engineering, INC. | Leominster | MA | Fabricated Metal Product Manufacturing332710 | — | ● ACTIVE |
Bob Johnson Associates INC | Leominster | MA | Fabricated Metal Product Manufacturing332999 | — | ● ACTIVE |
Claflin Associates INC | Leominster | MA | Computer and Electronic Product Manufacturing334515 | — | ● ACTIVE |
| ETE T Duval & Sons, INC | Leominster | MA | Fabricated Metal Product Manufacturing332322 | — | ● ACTIVE |
Hanger Prosthetics & Orthotics East, INC. | Leominster | MA | Miscellaneous Manufacturing339113 | — | ● ACTIVE |
Micro Machine & Electronics, INC. | Leominster | MA | Fabricated Metal Product Manufacturing332710 | — | ● ACTIVE |
Polyorg, INC. | Leominster | MA | Chemical Manufacturing325998 | — | ● ACTIVE |
| RLRavensafe LLC | Leominster | MA | Electrical Equipment, Appliance & Component Manufacturing335910 | — | ● ACTIVE |
| AWAlpha Wire | Leominster | MA | Computer and Electronic Product Manufacturing334290 | — | ◐ LIKELY ACTIVE |
| HCHudson Color Concentrates | Leominster | MA | Food Manufacturing311942 | — | ◐ LIKELY ACTIVE |
| HWHighline Warren LLC | Leominster | MA | Chemical Manufacturing325612 | — | ◐ LIKELY ACTIVE |
| MSMexichem Specialty Compounds INC | Leominster | MA | Chemical Manufacturing325211 | — | ◇ UNVERIFIED |
| NNoveon | Leominster | MA | Chemical Manufacturing325211 | — | ◇ UNVERIFIED |
| TATeknor Apex Thermoplastic | Leominster | MA | Chemical Manufacturing325211 | — | ◇ UNVERIFIED |
| BMBanner Mold and Die CO INC | Leominster | MA | Machinery Manufacturing333511 | 20-99 | ◐ LIKELY ACTIVE |
| BMBeacon Medtech Solutions Jytek | Leominster | MA | Plastics and Rubber Products Manufacturing326199 | — | ◐ LIKELY ACTIVE |
| BMBeacon Medtech Solutions Ma LLC | Leominster | MA | Plastics and Rubber Products Manufacturing326199 | — | ◐ LIKELY ACTIVE |
| EEasypak | Leominster | MA | Plastics and Rubber Products Manufacturing326121 | 100-499 | ◐ LIKELY ACTIVE |
| GCGeorgiapacific Consumer Operations LLC | Leominster | MA | Plastics and Rubber Products Manufacturing326199 | — | ◐ LIKELY ACTIVE |
| MMohawk | Leominster | MA | Primary Metal Manufacturing331422 | 100-499 | ◐ LIKELY ACTIVE |
| PCProcess Cooling Systems INC | Leominster | MA | Machinery Manufacturing333415 | 20-99 | ◐ LIKELY ACTIVE |
| SPSti Precast | Leominster | MA | Nonmetallic Mineral Product Manufacturing327390 | — | ◐ LIKELY ACTIVE |
| ULUnited Leominster | Leominster | MA | Plastics and Rubber Products Manufacturing326199 | — | ◐ LIKELY ACTIVE |
| UPUS Pack | Leominster | MA | Chemical Manufacturing325998 | 20-99 | ◐ LIKELY ACTIVE |
| FTFosta Tek Optics | Leominster | MA | Chemical Manufacturing325211 | — | ◐ LIKELY ACTIVE |
| LCLeaktite Corporation | Leominster | MA | Plastics and Rubber Products Manufacturing326199 | — | ◐ LIKELY ACTIVE |
| CCCarbon Composites INC | Leominster | MA | Electrical Equipment, Appliance & Component Manufacturing335991 | — | ◇ UNVERIFIED |
| CFClaremont Flock | Leominster | MA | Textile Mills313310 | — | ◇ UNVERIFIED |
| CLClearplas LLC | Leominster | MA | Miscellaneous Manufacturing339115 | — | ◇ UNVERIFIED |
| CPConnectivity Products Bsc Division | Leominster | MA | Primary Metal Manufacturing331422 | — | ◇ UNVERIFIED |
| CPCvs Pharmacy 0810 | Leominster | MA | Plastics and Rubber Products Manufacturing326212 | — | ◇ UNVERIFIED |
| ESElastomer Solutions INC | Leominster | MA | Chemical Manufacturing325211 | — | ◇ UNVERIFIED |
| HHHoliday Housewares | Leominster | MA | Chemical Manufacturing325211 | — | ◇ UNVERIFIED |
| IPInland Paperboard & | Leominster | MA | Paper Manufacturing322130 | — | ◇ UNVERIFIED |
| MDModern Dispersion | Leominster | MA | Chemical Manufacturing325991 | — | ◇ UNVERIFIED |
| MCMonson Chemical Distribution | Leominster | MA | Chemical Manufacturing325998 | — | ◇ UNVERIFIED |
| NCNovacor Chemical INC | Leominster | MA | Chemical Manufacturing325211 | — | ◇ UNVERIFIED |
| PIPlastican Incorporated | Leominster | MA | Plastics and Rubber Products Manufacturing326199 | — | ◇ UNVERIFIED |
Polycarbon Industries, INC. | Leominster | MA | Chemical Manufacturing325412 | — | ◇ UNVERIFIED |
| QPQuebecor Printing | Leominster | MA | Printing and Related Support Activities323110 | — | ◇ UNVERIFIED |
| SLSouthwin LTD | Leominster | MA | Chemical Manufacturing325998 | — | ◇ UNVERIFIED |
| SPSpecialty Polymers | Leominster | MA | Chemical Manufacturing325211 | — | ◇ UNVERIFIED |
| SCSpectro Coating CORP | Leominster | MA | Textile Mills313312 | — | ◇ UNVERIFIED |
| TPTamor Plastics Company | Leominster | MA | Paper Manufacturing322221 | — | ◇ UNVERIFIED |
| UPUnion Products INC | Leominster | MA | Plastics and Rubber Products Manufacturing326199 | — | ◇ UNVERIFIED |
| UPUnited Parcel Service Maleo | Leominster | MA | Plastics and Rubber Products Manufacturing326212 | — | ◇ UNVERIFIED |
| AIAaron Industries Corp | Leominster | MA | Chemical Manufacturing325991 | 20-99 | ◐ LIKELY ACTIVE |