| CECfd Engineering Company, INC. | Prospect | CT | Fabricated Metal Product Manufacturing332116 | — | ◇ UNVERIFIED |
| COCharter Oak Brewing Company LLC | New Canaan | CT | Beverage and Tobacco Product Manufacturing312120 | — | ◇ UNVERIFIED |
| CPChromium Process CO | Shelton | CT | Fabricated Metal Product Manufacturing332813 | — | ◇ UNVERIFIED |
| CICircuit-wise INC | North Haven | CT | Computer and Electronic Product Manufacturing334412 | — | ◇ UNVERIFIED |
| CBClopay Building Products | North Haven | CT | Wood Product Manufacturing321911 | — | ◇ UNVERIFIED |
| CLCloudy Lane Bakery LLC | Norwalk | CT | Food Manufacturing311812 | — | ◇ UNVERIFIED |
| CRCmc Rebar-ct-plainville | Plainville | CT | Fabricated Metal Product Manufacturing332312 | — | ◇ UNVERIFIED |
| CComcast | Enfield | CT | Computer and Electronic Product Manufacturing334220 | — | ◇ UNVERIFIED |
| CCConnecticut Casket Company LLC | Chaplin | CT | Miscellaneous Manufacturing339995 | — | ◇ UNVERIFIED |
| CFConnecticut Fire Equipment, INC. | Putnam | CT | Chemical Manufacturing325998 | — | ◇ UNVERIFIED |
| CMConnecticut Machine Tooling * Casting, INC. | Milford | CT | Machinery Manufacturing333515 | — | ◇ UNVERIFIED |
| CMConnecticut Metalworks, LLC | Newington | CT | Fabricated Metal Product Manufacturing332312 | — | ◇ UNVERIFIED |
| CPConnecticut Plastics, INC. | Wallingford | CT | Plastics and Rubber Products Manufacturing326199 | — | ◇ UNVERIFIED |
| CSConnecticut Solid Surface, LLC | Plainville | CT | Nonmetallic Mineral Product Manufacturing327991 | — | ◇ UNVERIFIED |
| CTConnecticut Tool Co., INC. | Putnam | CT | Machinery Manufacturing333511 | — | ◇ UNVERIFIED |
| CTConnecticut Tool & Mfg, Building 2 | Farmington | CT | Transportation Equipment Manufacturing336412 | — | ◇ UNVERIFIED |
| CMCoppola Marble & Granite | Stamford | CT | Nonmetallic Mineral Product Manufacturing327991 | — | ◇ UNVERIFIED |
| CECosmo Enterprises LLC | New Haven | CT | Fabricated Metal Product Manufacturing332312 | — | ◇ UNVERIFIED |
| CMCreative Mobile Systems, INC. | Manchester | CT | Machinery Manufacturing333319 | — | ◇ UNVERIFIED |
| CEC&s Engineering, INC. | Meriden | CT | Fabricated Metal Product Manufacturing332312 | — | ◇ UNVERIFIED |
| CFC&S Family Bakery, LLC | New Haven | CT | Food Manufacturing311811 | — | ◇ UNVERIFIED |
| CLCt Laser and Engraving | Wallingford | CT | Fabricated Metal Product Manufacturing332812 | — | ◇ UNVERIFIED |
| CMCt Metal Structures, LLC | Farmington | CT | Fabricated Metal Product Manufacturing332999 | — | ◇ UNVERIFIED |
| CPCt Powdercoating | Norwalk | CT | Chemical Manufacturing325510 | — | ◇ UNVERIFIED |
| CSCT Sweet Treats LLC | Avon | CT | Food Manufacturing311811 | — | ◇ UNVERIFIED |
| CCuriomatic .LLC | New Fairfield | CT | Computer and Electronic Product Manufacturing334118 | — | ◇ UNVERIFIED |
| CICustom Interior & Design LLC | Colebrook | CT | Furniture and Related Product Manufacturing337212 | — | ◇ UNVERIFIED |
| CRCustom Recycling, Inc. | North Haven | CT | Wood Product Manufacturing321920 | — | ◇ UNVERIFIED |
| CTCustom Tooling Solutions LLC | Windsor | CT | Machinery Manufacturing333517 | — | ◇ UNVERIFIED |
| DSDanbury Signs, INC. | Danbury | CT | Miscellaneous Manufacturing339950 | — | ◇ UNVERIFIED |
| DWDanbury Winair Company | Brookfield | CT | Machinery Manufacturing333414 | — | ◇ UNVERIFIED |
| DWDark Waters Distillery LLC | Groton | CT | Beverage and Tobacco Product Manufacturing312140 | — | ◇ UNVERIFIED |
| DCDarly Custom Technology, INC. | Windsor | CT | Fabricated Metal Product Manufacturing332117 | — | ◇ UNVERIFIED |
| DDDB Distilling LLC | Bloomfield | CT | Beverage and Tobacco Product Manufacturing312140 | — | ◇ UNVERIFIED |
| DLDeburring Laboratories INC. | Berlin | CT | Machinery Manufacturing333512 | — | ◇ UNVERIFIED |
| DBDeco Blades LLC | Middletown | CT | Fabricated Metal Product Manufacturing332710 | — | ◇ UNVERIFIED |
| DADel Arbour, LLC | Milford | CT | Apparel Manufacturing315220 | — | ◇ UNVERIFIED |
| DIDelta-Ray Industries, Inc. | Litchfield | CT | Transportation Equipment Manufacturing336413 | — | ◇ UNVERIFIED |
| DIDelta-Ray Industries, Inc. | Bridgeport | CT | Fabricated Metal Product Manufacturing332710 | — | ◇ UNVERIFIED |
| DRDelta Rubber CO Sub of Nn, INC | Danielson | CT | Plastics and Rubber Products Manufacturing326299 | — | ◇ UNVERIFIED |
| DCDexmet CORP | Branford | CT | Miscellaneous Manufacturing339910 | — | ◇ UNVERIFIED |
| DMDiscover Marble & Granite, INC. | Wallingford | CT | Nonmetallic Mineral Product Manufacturing327991 | — | ◇ UNVERIFIED |
| DLD & L Tool, INC. | Waterbury | CT | Machinery Manufacturing333517 | — | ◇ UNVERIFIED |
| DLDME Living Well, LLC | Middletown | CT | Miscellaneous Manufacturing339112 | — | ◇ UNVERIFIED |
| DSDne Sys INC | Wallingford | CT | Computer and Electronic Product Manufacturing334290 | — | ◇ UNVERIFIED |
| DCDoCheri Chocolate LLC | Darien | CT | Food Manufacturing311352 | — | ◇ UNVERIFIED |
| DBDockside Brewery LLC | Milford | CT | Beverage and Tobacco Product Manufacturing312120 | — | ◇ UNVERIFIED |
| DWDooney Woodwork, LLC | Cos Cob | CT | Furniture and Related Product Manufacturing337212 | — | ◇ UNVERIFIED |
| DCDow Chemical CO | Gales Ferry | CT | Chemical Manufacturing325211 | — | ◇ UNVERIFIED |
| DIDresser Industries, Heise Plant | Newtown | CT | Computer and Electronic Product Manufacturing334513 | — | ◇ UNVERIFIED |
