| ECElectric Cable Compounds | Seymour | CT | Chemical Manufacturing325212 | — | ◇ UNVERIFIED |
| HLHenkel Loctite Corporation | Rocky Hill | CT | Chemical Manufacturing325520 | — | ◇ UNVERIFIED |
| HKH Krevit & CO Water Treatment Chemicals | New Haven | CT | Chemical Manufacturing325180 | — | ◇ UNVERIFIED |
| MCMacdermid Closed | Waterbury | CT | Chemical Manufacturing325998 | — | ◇ UNVERIFIED |
| MEMacdermid Enthone INC | Orange | CT | Chemical Manufacturing325998 | — | ◇ UNVERIFIED |
| MIMaxam Initiation Systems | Sterling | CT | Chemical Manufacturing325920 | — | ◇ UNVERIFIED |
| MTMelinta Therapeutics INC | New Haven | CT | Chemical Manufacturing325412 | — | ◇ UNVERIFIED |
| NENew England Discovery Partners | Branford | CT | Chemical Manufacturing325414 | — | ◇ UNVERIFIED |
| NMNew Milford Ct Farms Compost | New Milford | CT | Chemical Manufacturing325314 | — | ◇ UNVERIFIED |
| NINutrico, INC | Bridgeport | CT | Chemical Manufacturing325311 | — | ◇ UNVERIFIED |
| PIP&g-clairol, INC. | Stamford | CT | Chemical Manufacturing325620 | — | ◇ UNVERIFIED |
| PSPhoenix Soil LLC | Waterbury | CT | Chemical Manufacturing325314 | — | ◇ UNVERIFIED |
| PSPhoenix Soil, LLC | Plainville | CT | Chemical Manufacturing325314 | — | ◇ UNVERIFIED |
Ppg Architectural Finishes, INC. | Watertown | CT | Chemical Manufacturing325510 | — | ◇ UNVERIFIED |
| PWPraxair - Worldwide Headquarters | Danbury | CT | Chemical Manufacturing325120 | — | ◇ UNVERIFIED |
| SSSafety-kleen Systems INC - Bridgeport Facility | Bridgeport | CT | Chemical Manufacturing325998 | — | ◇ UNVERIFIED |
| SSSafety-kleen Systems INC - Portland Facility | Portland | CT | Chemical Manufacturing325998 | — | ◇ UNVERIFIED |
| SCStamford CORP I | Stamford | CT | Chemical Manufacturing325998 | — | ◇ UNVERIFIED |
| SPSun Products CORP | Trumbull | CT | Chemical Manufacturing325611 | — | ◇ UNVERIFIED |
| UU.s.cosmetics | Killingly (dayville) | CT | Chemical Manufacturing325620 | — | ◇ UNVERIFIED |
| YUYale University | West Haven | CT | Chemical Manufacturing325412 | — | ◇ UNVERIFIED |
| AMABA-PGT Manchester Location | Manchester | CT | Chemical Manufacturing325211 | 100-499 | ◐ LIKELY ACTIVE |
| AVABA-PGT Vernon Location | Vernon | CT | Chemical Manufacturing325211 | 1-19 | ◐ LIKELY ACTIVE |
| AAAmSty Allyn's Point | Gales Ferry | CT | Chemical Manufacturing325211 | 20-99 | ◐ LIKELY ACTIVE |
| ABAvient - Bethel | Bethel | CT | Chemical Manufacturing325211 | 1-19 | ◐ LIKELY ACTIVE |
| ANAvient - NEU | North Haven | CT | Chemical Manufacturing325211 | 1-19 | ◐ LIKELY ACTIVE |
| AWAzure Water Services, LLC | West Haven | CT | Chemical Manufacturing325998 | 20-99 | ◐ LIKELY ACTIVE |
| BEBotanical Extract Manufacturer | Monroe | CT | Chemical Manufacturing325620 | 20-99 | ◐ LIKELY ACTIVE |
| BBrookfield | Brookfield | CT | Chemical Manufacturing325193 | 100-499 | ◐ LIKELY ACTIVE |
| CCenterbrook | Centerbrook | CT | Chemical Manufacturing325412 | 20-99 | ◐ LIKELY ACTIVE |
| CCCity Chemical LLC | West Haven | CT | Chemical Manufacturing325180 | — | ◐ LIKELY ACTIVE |
| CClinton | Clinton | CT | Chemical Manufacturing325412 | 20-99 | ◐ LIKELY ACTIVE |
| ESElectronic Sales of New England, LLC | Old Saybrook | CT | Chemical Manufacturing325211 | — | ◐ LIKELY ACTIVE |
| FPFairfield Processing Corporation | Fairfield Processing Corporation/88 Rose Hill Avenue/Danbury | CT | Chemical Manufacturing325220 | 20-99 | ◐ LIKELY ACTIVE |
| FMFragrance Manufacturer | Milford | CT | Chemical Manufacturing325620 | 20-99 | ◐ LIKELY ACTIVE |
| GAGetinge Aseptic Solutions, LLC | New Milford | CT | Chemical Manufacturing325412 | — | ◐ LIKELY ACTIVE |
| JDJohn Downey Drive | New Britain | CT | Chemical Manufacturing325612 | 20-99 | ◐ LIKELY ACTIVE |
| LILATICRETE International Inc - Bethany | Bethany | CT | Chemical Manufacturing325520 | 100-499 | ◐ LIKELY ACTIVE |
| NHNorth Haven | North Haven | CT | Chemical Manufacturing325120 | 20-99 | ◐ LIKELY ACTIVE |
| PRPerkins Rouge & Paint Co., LLC | Milford | CT | Chemical Manufacturing325998 | — | ◐ LIKELY ACTIVE |
| P1Plant 1 | Hamden | CT | Chemical Manufacturing325510 | 1-19 | ◐ LIKELY ACTIVE |
| P1Plant 1 | New Haven | CT | Chemical Manufacturing325199 | 20-99 | ◐ LIKELY ACTIVE |
| PCProduction Court | New Britain | CT | Chemical Manufacturing325612 | 1-19 | ◐ LIKELY ACTIVE |
| RCR.S.A. Corp. | Danbury | CT | Chemical Manufacturing325199 | 20-99 | ◐ LIKELY ACTIVE |
| SPSCA Pharma Windsor | Windsor | CT | Chemical Manufacturing325412 | 100-499 | ◐ LIKELY ACTIVE |
| STSpringworks Therapeutics, INC. | Stamford | CT | Chemical Manufacturing325412 | — | ◐ LIKELY ACTIVE |
| SStamford | Stamford | CT | Chemical Manufacturing325611 | 1-19 | ◐ LIKELY ACTIVE |
| Ssuffield | Suffield | CT | Chemical Manufacturing325120 | 20-99 | ◐ LIKELY ACTIVE |
| TGTechnical Gas Products, INC. | Wallingford | CT | Chemical Manufacturing325120 | — | ◐ LIKELY ACTIVE |
| TSThe Scotts Company - Lebanon | Lebanon | CT | Chemical Manufacturing325314 | 100-499 | ◐ LIKELY ACTIVE |