| SHSOFIE - Haverhill | Haverhill | MA | Chemical Manufacturing325412 | 20-99 | ◐ LIKELY ACTIVE |
| SISolarmantle, INC. | Lexington | MA | Chemical Manufacturing325211 | — | ▲ REPORTED CLOSED |
| SMSpringfield, MA | Springfield | MA | Food Manufacturing311612 | 100-499 | ◐ LIKELY ACTIVE |
| SRS & R Pharmaceuticals LLC | Lenox | MA | Chemical Manufacturing325413 | — | ◐ LIKELY ACTIVE |
| TUTakeda: USA Field Sales & Remote Employees | Cambridge | MA | Chemical Manufacturing325412 | 500+ | ◐ LIKELY ACTIVE |
| TCTechnical Coatings, INC. | Canton | MA | Chemical Manufacturing325510 | — | ◐ LIKELY ACTIVE |
| TGThe Gillette Company LLC | Andover | MA | Chemical Manufacturing325620 | 100-499 | ◐ LIKELY ACTIVE |
| TSTurfCare Supply Hatfield MA | Hatfield | MA | Chemical Manufacturing325314 | 20-99 | ◐ LIKELY ACTIVE |
| UBUltragenyx - Bedford | Bedford | MA | Chemical Manufacturing325414 | 100-499 | ◐ LIKELY ACTIVE |
| VDVeranova - Devens | Devens | MA | Chemical Manufacturing325412 | 100-499 | ◐ LIKELY ACTIVE |
| VNVeranova - North Andover | North Andover | MA | Chemical Manufacturing325412 | 20-99 | ◐ LIKELY ACTIVE |
| VIVolatylix INC | Cambridge | MA | Chemical Manufacturing325413 | — | ◐ LIKELY ACTIVE |
| WSWalpole Site | East Walpole | MA | Chemical Manufacturing325413 | 500+ | ◐ LIKELY ACTIVE |
| XHXerxes Hagerstown | Williamsport | MA | Chemical Manufacturing325211 | 20-99 | ◐ LIKELY ACTIVE |
| ZTZeal Therapeutics, INC | Medford | MA | Chemical Manufacturing325412 | — | ◐ LIKELY ACTIVE |
| ESEmd Serono INC | Boston | MA | Chemical Manufacturing325412 | — | ◐ LIKELY ACTIVE |
| NBNuwagen Bio, INC. | Watertown | MA | Chemical Manufacturing325414 | — | ◐ LIKELY ACTIVE |
| AIAccrx INC | Newton | MA | Chemical Manufacturing325411 | 1-19 | ◇ UNVERIFIED |
| AFAdvanced Frp Systems INC | Weymouth | MA | Chemical Manufacturing325510 | 1-19 | ◇ UNVERIFIED |
| BPBell's Powder Coating Inc. | North Attleboro | MA | Chemical Manufacturing325510 | 20-99 | ◇ UNVERIFIED |
| CICapralogics INC | Hardwick | MA | Chemical Manufacturing325414 | 1-19 | ◇ UNVERIFIED |
| CTCyclerion Therapeutics INC | Cambridge | MA | Chemical Manufacturing325412 | 20-99 | ◇ UNVERIFIED |
Deuterium Ims LLC | Boston | MA | Chemical Manufacturing325130 | — | ◇ UNVERIFIED |
| FCFlo Chemical CORP | Ashburnham | MA | Chemical Manufacturing325222 | 1-19 | ◇ UNVERIFIED |
| JCJFV Corp | Randolph | MA | Chemical Manufacturing325612 | 1-19 | ◇ UNVERIFIED |
| MCMosher CO INC | Chicopee | MA | Chemical Manufacturing325612 | 1-19 | ◇ UNVERIFIED |
| MPMpc Pei LLC Formerly Precision Elastomers INC | Ipswich | MA | Chemical Manufacturing325211 | 20-99 | ◇ UNVERIFIED |
| MBMustang Bio INC | Worcester | MA | Chemical Manufacturing325414 | — | ◇ UNVERIFIED |
| PCPjc & Company Ecological Land Care INC | Rowley | MA | Chemical Manufacturing325314 | 1-19 | ◇ UNVERIFIED |
| PCP&K Custom Acrylics, Inc. | Malden | MA | Chemical Manufacturing325211 | 1-19 | ◇ UNVERIFIED |
| PPPro Pel Plastech INC | South Deerfield | MA | Chemical Manufacturing325211 | 20-99 | ◇ UNVERIFIED |
Rapid Coatings INC | Woburn | MA | Chemical Manufacturing325520 | — | ◇ UNVERIFIED |
| RIRo-59, INC. | Stoughton | MA | Chemical Manufacturing325998 | 1-19 | ◇ UNVERIFIED |
| UPUnicus Pharmaceuticals, LLC | Taunton | MA | Chemical Manufacturing325620 | — | ◇ UNVERIFIED |
| WCWaveguide Corporation | Cambridge | MA | Chemical Manufacturing325998 | 1-19 | ◇ UNVERIFIED |
| AIAA-Install inc. | Plainville | MA | Chemical Manufacturing325611 | — | ◇ UNVERIFIED |
| AAddgene | Cambridge | MA | Chemical Manufacturing325414 | — | ◇ UNVERIFIED |
| AAddgeneinc | Watertown | MA | Chemical Manufacturing325414 | — | ◇ UNVERIFIED |
| ACAdvanced Compounding Solutions | Woburn | MA | Chemical Manufacturing325412 | — | ◇ UNVERIFIED |
| ARAgler Raymond | Gloucester | MA | Chemical Manufacturing325510 | — | ◇ UNVERIFIED |
| APAir Products and Chemicals INC | Marlborough | MA | Chemical Manufacturing325120 | — | ◇ UNVERIFIED |
| AIAlkermes INC | Cambridge | MA | Chemical Manufacturing325412 | — | ◇ UNVERIFIED |
| APAlnylam Pharmaceuticals INC | Cambridge | MA | Chemical Manufacturing325412 | — | ◇ UNVERIFIED |
| ACAmbit Creative Group | Brighton | MA | Chemical Manufacturing325992 | — | ◇ UNVERIFIED |
| ATAmericad Technology Corporation | Norwood | MA | Chemical Manufacturing325211 | — | ◇ UNVERIFIED |
| ARAmerican River Nutrition LLC | Hadley | MA | Chemical Manufacturing325199 | — | ◇ UNVERIFIED |
| AVAmerican Velodur Metal INC | Plymouth | MA | Chemical Manufacturing325520 | — | ◇ UNVERIFIED |
| ATAmide Technologies INC | Waltham | MA | Chemical Manufacturing325412 | — | ◇ UNVERIFIED |
| AFAnjen Finishing, Inc. | Marlborough | MA | Chemical Manufacturing325510 | — | ◇ UNVERIFIED |
| APApeloa Pharma Solutions CO | Billerica | MA | Chemical Manufacturing325412 | — | ◇ UNVERIFIED |