| KING INDUSTRIES, INC.Norwalk, CT · Active | Norwalk, CT | Corporation | Feb 24, 1961 | Active |
| GREATER NORWALK CHAMBER OF COMMERCE, INC.Norwalk, CT · Active | Norwalk, CT | Corporation | Oct 30, 1913 | Active |
| JENDAN, INCORPORATEDLocation not reported, CT · Dissolved | Location not reported, CT | Corporation | Apr 7, 1983 | Dissolved |
| K. B. I. SECURITY SERVICE INC.Bridgeport, CT · Revoked | Bridgeport, CT | Corporation | Mar 9, 1984 | Revoked |
| NORFOLK CONNECTICUT CHILDREN'S FOUNDATION, INC.Norfolk, CT · Active | Norfolk, CT | Corporation | Dec 11, 1985 | Active |
| ROBERT D. KING, INC.New Hartford, CT · Active | New Hartford, CT | Corporation | Dec 12, 1986 | Active |
| ELITE COURIER LTD.Stamford, CT · Merged | Stamford, CT | Corporation | Mar 10, 1988 | Merged |
| CORPORATE EXPRESS OF THE NORTHEAST, INC.Location not reported, CT · Withdrawn | Location not reported, CT | Corporation | Jul 21, 1988 | Withdrawn |
| I-HAVE-A-DREAM FOUNDATION OF STAMFORD, INC.Stamford, CT · Forfeited | Stamford, CT | Corporation | Mar 3, 1992 | Forfeited |
| KING, KING & ASSOCIATES, CPAS P.C.Winsted, CT · Active | Winsted, CT | Corporation | Jan 25, 1994 | Active |
| FRIENDS OF YERWOOD CENTER, INC.Stamford, CT · Forfeited | Stamford, CT | Corporation | Feb 16, 1995 | Forfeited |
| TERRIEN TRANSPORTATION, INC.Location not reported, CT · Revoked | Location not reported, CT | Corporation | Oct 22, 2002 | Revoked |
| RELATIVITY, LLCEast Hartford, CT · Forfeited | East Hartford, CT | LLC | Aug 4, 2005 | Forfeited |
| VIRTUALLY ANYWHERE LLCLocation not reported, CT · Dissolved | Location not reported, CT | LLC | Aug 8, 2005 | Dissolved |
| CONSERVATION SERVICES GROUP, INC.Location not reported, CT · Withdrawn | Location not reported, CT | Corporation | May 3, 2006 | Withdrawn |
| KILLER MINNOW LLCOld Lyme, CT · Dissolved | Old Lyme, CT | LLC | May 15, 2008 | Dissolved |
| REGION 7 EDUCATION FUND, INC.Winsted, CT · Dissolved | Winsted, CT | Corporation | Oct 22, 2008 | Dissolved |
| S & C ELECTRIC COMPANY OF ILLINOIS, INC.Location not reported, CT · Active | Location not reported, CT | Corporation | May 5, 2010 | Active |
| GOOD COMPANY THEATER AT SOUTH CHURCH, INC.Granby, CT · Active | Granby, CT | Corporation | Oct 7, 2010 | Active |
| HUMANSCALE CORPORATIONLocation not reported, CT · Active | Location not reported, CT | Corporation | Jan 18, 2011 | Active |
| RAK MARKETING, LLCStamford, CT · Dissolved | Stamford, CT | LLC | Mar 10, 2011 | Dissolved |
| WORKFORCE OUTSOURCE SERVICES, INC.Location not reported, CT · Active | Location not reported, CT | Corporation | Dec 7, 2012 | Active |
| DISCOVERING AMISTAD, INC.New Haven, CT · Active | New Haven, CT | Corporation | Jul 31, 2015 | Active |
| COW POINT, LLCLocation not reported, CT · Active | Location not reported, CT | LLC | Jun 28, 2017 | Active |
| SOXKING LLCNorwalk, CT · Forfeited | Norwalk, CT | LLC | Jul 17, 2017 | Forfeited |
| Total Trials, Inc.Location not reported, CT · Active | Location not reported, CT | Corporation | Dec 18, 2020 | Active |
| ACUITY KNOWLEDGE PARTNERS (US) INC.Location not reported, CT · Active | Location not reported, CT | Corporation | Apr 12, 2021 | Active |
| AKP Analytics (US) Inc.Location not reported, CT · Active | Location not reported, CT | Corporation | Feb 14, 2023 | Active |
| Scrub-A-Ray LLCWindsor, CT · Dissolved | Windsor, CT | LLC | Jun 9, 2023 | Dissolved |
| Applied Information Technologies Inc.Ellington, CT · Active | Ellington, CT | Corporation | Jun 2, 2025 | Active |