A Chemtek INC | Woburn | MA | Chemical Manufacturing325199 | — | ● ACTIVE |
American Gas Products INC | Woburn | MA | Chemical Manufacturing325120 | — | ● ACTIVE |
Molecular Loop Corporation | Woburn | MA | Chemical Manufacturing325414 | — | ● ACTIVE |
| PHParker Hannifin CORP Chomerics Div | Woburn | MA | Chemical Manufacturing325520 | — | ◇ UNVERIFIED |
| DIDavol Inc., a Subsidiary of C.r. Bard | Woburn | MA | Chemical Manufacturing325412 | — | ◐ LIKELY ACTIVE |
| ATAnika Therapeutics | Woburn | MA | Chemical Manufacturing325412 | — | ◇ UNVERIFIED |
| CPConnoisseurs Products CORP | Woburn | MA | Chemical Manufacturing325612 | — | ◇ UNVERIFIED |
| CCContinental Chemical & Coatings | Woburn | MA | Chemical Manufacturing325520 | — | ◇ UNVERIFIED |
| FSFuller System INC | Woburn | MA | Chemical Manufacturing325199 | — | ◇ UNVERIFIED |
| N1Nv 11 State Fund LLC | Woburn | MA | Chemical Manufacturing325520 | — | ◇ UNVERIFIED |
| PHParker Hannifin CORP Chomerics Division | Woburn | MA | Chemical Manufacturing325520 | — | ◇ UNVERIFIED |
| TPThermedics Polymer Products | Woburn | MA | Chemical Manufacturing325211 | — | ◇ UNVERIFIED |
| WBWinfield Brooks CO | Woburn | MA | Chemical Manufacturing325611 | — | ◇ UNVERIFIED |
| BIBiofrontera INC | Woburn | MA | Chemical Manufacturing325412 | — | ◐ LIKELY ACTIVE |
| HEH2c Energy INC. | Woburn | MA | Chemical Manufacturing325211 | — | ◐ LIKELY ACTIVE |
| SBSanguine Biosciences, INC | Woburn | MA | Chemical Manufacturing325414 | — | ◐ LIKELY ACTIVE |
Rapid Coatings INC | Woburn | MA | Chemical Manufacturing325520 | — | ◇ UNVERIFIED |
| ACAdvanced Compounding Solutions | Woburn | MA | Chemical Manufacturing325412 | — | ◇ UNVERIFIED |
| CMCollagen Medical | Woburn | MA | Chemical Manufacturing325412 | — | ◇ UNVERIFIED |
| IMIonic Materials | Woburn | MA | Chemical Manufacturing325998 | — | ◇ UNVERIFIED |
| JSJoseph Selbeck and Robert Withee | Woburn | MA | Chemical Manufacturing325510 | — | ◇ UNVERIFIED |
| MIMbl International | Woburn | MA | Chemical Manufacturing325414 | — | ◇ UNVERIFIED |
| NENew England Plastics | Woburn | MA | Chemical Manufacturing325991 | — | ◇ UNVERIFIED |
| PBPharmaron Boston Laboratory Services LLC | Woburn | MA | Chemical Manufacturing325412 | — | ◇ UNVERIFIED |