| RLRWP, Limited Liability Company | Madison, CT | Fabricated Metal Product Manufacturing332710 | — | ◇ UNVERIFIED |
| SPSaint-gobain Ppl CORP | New Haven, CT | Paper Manufacturing322220 | — | ◇ UNVERIFIED |
| SESchneiderelectric Ecofit | North Haven, CT | Electrical Equipment, Appliance & Component Manufacturing335313 | — | ◇ UNVERIFIED |
| SSensorworx | Wallingford, CT | Electrical Equipment, Appliance & Component Manufacturing335132 | — | ◇ UNVERIFIED |
| SCSerious Coffee LLC | Meriden, CT | Food Manufacturing311920 | — | ◇ UNVERIFIED |
| SISms Industries LLC | Hamden, CT | Fabricated Metal Product Manufacturing332322 | — | ◇ UNVERIFIED |
| SSSolar Seal of Connecticut | Hamden, CT | Nonmetallic Mineral Product Manufacturing327211 | — | ◇ UNVERIFIED |
| SPSolidification Products International, INC | North Haven, CT | Fabricated Metal Product Manufacturing332999 | — | ◇ UNVERIFIED |
| SSSomething Sweet, INC. | New Haven, CT | Food Manufacturing311812 | — | ◇ UNVERIFIED |
| SMSpace-craft Manufacturing, INC. | New Haven, CT | Transportation Equipment Manufacturing336412 | — | ◇ UNVERIFIED |
| SWState Welding & Fabricating, INC. | Wallingford, CT | Fabricated Metal Product Manufacturing332312 | — | ◇ UNVERIFIED |
| SMStrain Measurement Devices, INC. | Wallingford, CT | Computer and Electronic Product Manufacturing334519 | — | ◇ UNVERIFIED |
| SSSuraci Spray & Finishing, LLC | New Haven, CT | Fabricated Metal Product Manufacturing332812 | — | ◇ UNVERIFIED |
| SYSuzio York Hill Cos | Meriden, CT | Petroleum and Coal Products Manufacturing324121 | — | ◇ UNVERIFIED |
| TETachwa Enterprises INC. | Hamden, CT | Primary Metal Manufacturing331315 | — | ◇ UNVERIFIED |
| TTTan Tlaxcalli and Plus LLC | Meriden, CT | Food Manufacturing311830 | — | ◇ UNVERIFIED |
| TITechmold Industries, INC. | North Haven, CT | Plastics and Rubber Products Manufacturing326291 | — | ◇ UNVERIFIED |
| THTen Hoeve Brothers LLC | Meriden, CT | Fabricated Metal Product Manufacturing332313 | — | ◇ UNVERIFIED |
| TGT G Industries, INC. | Meriden, CT | Machinery Manufacturing333999 | — | ◇ UNVERIFIED |
| TNThe Notepad Store, LLC | Wallingford, CT | Printing and Related Support Activities323111 | — | ◇ UNVERIFIED |
| TSThermal-Flex Systems, Inc. | Northford, CT | Electrical Equipment, Appliance & Component Manufacturing335312 | — | ◇ UNVERIFIED |
| TTThe Tortilla Villa INC. | West Haven, CT | Food Manufacturing311812 | — | ◇ UNVERIFIED |
| TWThe Wilson Arms Company | Branford, CT | Fabricated Metal Product Manufacturing332994 | — | ◇ UNVERIFIED |
| TIThimble Island Brewing Company | Branford, CT | Beverage and Tobacco Product Manufacturing312120 | — | ◇ UNVERIFIED |
| TCTilcon Connecticut INC | Wallingford, CT | Petroleum and Coal Products Manufacturing324121 | — | ◇ UNVERIFIED |
| TCTilcon Connnecticut INC | North Branford, CT | Petroleum and Coal Products Manufacturing324121 | — | ◇ UNVERIFIED |
| UPUnicorr Packaging Group | North Haven, CT | Paper Manufacturing322211 | — | ◇ UNVERIFIED |
| UDUnique Dispensing Systems, LLC | Guilford, CT | Chemical Manufacturing325211 | — | ◇ UNVERIFIED |
| UDUnique Dispensing Systems, LLC | Guilford, CT | Chemical Manufacturing325211 | — | ◇ UNVERIFIED |
 United Electric Controls Precision Sensors Divisions | Milford, CT | Computer and Electronic Product Manufacturing334513 | — | ◇ UNVERIFIED |
| UCUniversal Component Corporation | Branford, CT | Wood Product Manufacturing321214 | — | ◇ UNVERIFIED |
| UIUretek INC | New Haven, CT | Textile Mills313320 | — | ◇ UNVERIFIED |
| UDUS Dol Osha Bridgeport | Madison, CT | Fabricated Metal Product Manufacturing332322 | — | ◇ UNVERIFIED |
| UDUS Dol Osha Bridgeport | Wallingford, CT | Miscellaneous Manufacturing339910 | — | ◇ UNVERIFIED |
| USU S Repeating Arms CO INC | New Haven, CT | Fabricated Metal Product Manufacturing332994 | — | ◇ UNVERIFIED |
| UCUtility Communications Inc | Hamden, CT | Computer and Electronic Product Manufacturing334220 | — | ◇ UNVERIFIED |
| VLVia Lactea LLC | New Haven, CT | Food Manufacturing311520 | — | ◇ UNVERIFIED |
| VTVictor Tool Co., INC. | Meriden, CT | Computer and Electronic Product Manufacturing334511 | — | ◇ UNVERIFIED |
| WAWallingford Aerospace Acquisition INC. | Wallingford, CT | Miscellaneous Manufacturing339991 | — | ◇ UNVERIFIED |
| WGWhole German Bread, LLC | New Haven, CT | Food Manufacturing311812 | — | ◇ UNVERIFIED |
| WWWire Works, INC. | Milford, CT | Primary Metal Manufacturing331222 | — | ◇ UNVERIFIED |
| WLWpp, LLC | Branford, CT | Printing and Related Support Activities323111 | — | ◇ UNVERIFIED |
| YOYe Olde Bookbindery LLC | Meriden, CT | Machinery Manufacturing333293 | — | ◇ UNVERIFIED |
| ZFZuppardi's Frozen Foods, LLC | West Haven, CT | Food Manufacturing311412 | — | ◇ UNVERIFIED |
| ZIZuse, Inc. | Branford, CT | Apparel Manufacturing315990 | — | ◇ UNVERIFIED |
| ZIZuse, INC | Guilford, CT | Printing and Related Support Activities323113 | — | ◇ UNVERIFIED |
