| OGO & G Industries, INC | Stamford | CT | Petroleum and Coal Products Manufacturing324121 | — | ◐ LIKELY ACTIVE |
| OIO&g Industries INC | Waterbury | CT | Petroleum and Coal Products Manufacturing324121 | — | ◐ LIKELY ACTIVE |
| PCPalco Connector, INC | Naugatuck | CT | Computer and Electronic Product Manufacturing334417 | 20-99 | ◐ LIKELY ACTIVE |
| PCPall Corporation | Putnam | CT | Textile Product Mills314999 | 20-99 | ◐ LIKELY ACTIVE |
| PEPape Electroplating Company LLC. | New Britain | CT | Fabricated Metal Product Manufacturing332813 | — | ◐ LIKELY ACTIVE |
| PPPharmco Products | Brookfield | CT | Chemical Manufacturing325193 | — | ◐ LIKELY ACTIVE |
| PMPlymouth Meats LLC | Terryville | CT | Food Manufacturing311611 | — | ◐ LIKELY ACTIVE |
| PIPorce-len, INC | Hamden | CT | Chemical Manufacturing325510 | — | ◐ LIKELY ACTIVE |
| PWPratt & Whitney | Middletown | CT | Transportation Equipment Manufacturing336412 | — | ◐ LIKELY ACTIVE |
| PWPratt & Whitney, Division of Rtx CORP | East Hartford | CT | Transportation Equipment Manufacturing336412 | — | ◐ LIKELY ACTIVE |
Ren Investment Group, INC | Suffield | CT | Transportation Equipment Manufacturing336412 | — | ◐ LIKELY ACTIVE |
| RSResin Solutions, LLC | Stratford | CT | Chemical Manufacturing325199 | — | ◐ LIKELY ACTIVE |
| RTRfs Technologies, INC. | Meriden | CT | Computer and Electronic Product Manufacturing334220 | 100-499 | ◐ LIKELY ACTIVE |
Romco Contractors, INC. | Bloomfield | CT | Fabricated Metal Product Manufacturing332116 | — | ◐ LIKELY ACTIVE |
| SDSaputo Dairy Foods USA - Newington | Newington | CT | Food Manufacturing311511 | — | ◐ LIKELY ACTIVE |
| SASealed Air CORP - Danbury | Danbury | CT | Chemical Manufacturing325991 | 20-99 | ◐ LIKELY ACTIVE |
| SSSeymour Sheridan INC | Monroe | CT | Fabricated Metal Product Manufacturing332999 | 20-99 | ◐ LIKELY ACTIVE |
| SShelterlogic | Watertown | CT | Textile Product Mills314910 | 100-499 | ◐ LIKELY ACTIVE |
| SSShurtape Specialty Coating, LLC | New Hartford | CT | Paper Manufacturing322220 | 20-99 | ◐ LIKELY ACTIVE |
| SASikorsky Aircraft Headquarters | Stratford | CT | Transportation Equipment Manufacturing336411 | — | ◐ LIKELY ACTIVE |
| TCThe Carby Corporation | Watertown | CT | Miscellaneous Manufacturing339993 | 20-99 | ◐ LIKELY ACTIVE |
| TSThe Sterling Engineering Corporation | Barkhamsted | CT | Fabricated Metal Product Manufacturing332710 | 20-99 | ▲ REPORTED CLOSED |
| TSThe Superior Plating Company | Southport | CT | Fabricated Metal Product Manufacturing332813 | — | ◐ LIKELY ACTIVE |
| TATriumph Actuation Systems | Windsor | CT | Machinery Manufacturing333995 | 100-499 | ◐ LIKELY ACTIVE |
| TPTtm Printed Circuit Group, INC. | Stafford | CT | Computer and Electronic Product Manufacturing334412 | — | ◐ LIKELY ACTIVE |
| USUnified Sports, INC | Waterford | CT | Fabricated Metal Product Manufacturing332999 | 100-499 | ◐ LIKELY ACTIVE |
| USUnimetal Surface Finishing, LLC | Thomaston | CT | Fabricated Metal Product Manufacturing332813 | — | ◐ LIKELY ACTIVE |
| UEUnison Engine Components | Manchester | CT | Computer and Electronic Product Manufacturing334511 | — | ◐ LIKELY ACTIVE |
| UAUnited Abrasives INC | Willimantic | CT | Nonmetallic Mineral Product Manufacturing327910 | — | ◐ LIKELY ACTIVE |
| UBU.s. Button Corporation | Putnam | CT | Miscellaneous Manufacturing339993 | 100-499 | ◐ LIKELY ACTIVE |
| UNU.s. Naval Submarine Base New London (subasenlon) | Groton | CT | Transportation Equipment Manufacturing336611 | — | ◐ LIKELY ACTIVE |
| WIWyman-gordon Investment Castings, Incorporated | Groton | CT | Primary Metal Manufacturing331512 | — | ◐ LIKELY ACTIVE |
| ASAmetek Specialty Metal Product | Wallingford | CT | Primary Metal Manufacturing331318 | — | ◐ LIKELY ACTIVE |
| BSBomar Specialties, LLC | Torrington | CT | Chemical Manufacturing325211 | — | ◐ LIKELY ACTIVE |
| CAConnecticut Anodizing & Finishing CO INC | Bridgeport | CT | Fabricated Metal Product Manufacturing332813 | — | ◐ LIKELY ACTIVE |
| ICItw Converted Products | Bloomfield | CT | Paper Manufacturing322220 | — | ◐ LIKELY ACTIVE |
| MIMrm Industries Meriden Facility | Meriden | CT | Primary Metal Manufacturing331111 | — | ◐ LIKELY ACTIVE |
| SMSpecialty Minerals Dolomite Plant | Canaan | CT | Chemical Manufacturing325180 | — | ◐ LIKELY ACTIVE |
| TPTect Power | Newington | CT | Transportation Equipment Manufacturing336412 | — | ◐ LIKELY ACTIVE |
| UIUyemura International Corporation | Southington | CT | Chemical Manufacturing325998 | — | ◐ LIKELY ACTIVE |
| AEAccellent Endoscopy | Watertown | CT | Fabricated Metal Product Manufacturing332119 | — | ◇ UNVERIFIED |
| AOActive Oil INC (acv) | New Haven | CT | Chemical Manufacturing325998 | — | ◇ UNVERIFIED |
| ASAmericas Styrenics Allyns Point Plant | Gales Ferry | CT | Chemical Manufacturing325211 | — | ◇ UNVERIFIED |
| BCBuilders Concrete East LLC | Manchester | CT | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| CCChemstation Connecticut | South Windsor | CT | Chemical Manufacturing325611 | — | ◇ UNVERIFIED |
| CCChromalloy Connecticut | Wallingford | CT | Fabricated Metal Product Manufacturing332999 | — | ◇ UNVERIFIED |
| DRDeep River Plastics | Deep River | CT | Plastics and Rubber Products Manufacturing326199 | — | ◇ UNVERIFIED |
| DIDur-a-flex INC | East Hartford | CT | Chemical Manufacturing325510 | — | ◇ UNVERIFIED |
| DNDyno Nobel | Simsbury | CT | Chemical Manufacturing325920 | — | ◇ UNVERIFIED |
| EAEdac Aero Rotating Components | Newington | CT | Transportation Equipment Manufacturing336412 | — | ◇ UNVERIFIED |