| REMCO OFFICE MACHINES, INC.Windsor, CT · Active | Windsor, CT | Corporation | Aug 12, 1975 | Active |
| S, M & L, INCORPORATEDWindsor, CT · Dissolved | Windsor, CT | Corporation | Jan 5, 1954 | Dissolved |
| SCOTT'S SPORTS SUPPLIES, INC.Windsor, CT · Active | Windsor, CT | Corporation | Apr 28, 1969 | Active |
| SCULLY MOTORS, INC.Windsor, CT · Dissolved | Windsor, CT | Corporation | Oct 1, 1958 | Dissolved |
| GUTTERMAN REAL ESTATE SERVICES, INC.Windsor, CT · Dissolved | Windsor, CT | Corporation | Jan 7, 1974 | Dissolved |
| TRC COMPANIES, INC.Windsor, CT · Active | Windsor, CT | Corporation | Feb 28, 1969 | Active |
| VEGAL POLISHING AND BUFFING COMPANY THEWindsor, CT · Dissolved | Windsor, CT | Corporation | Sep 20, 1960 | Dissolved |
| WERTHEIM ASSOCIATES, INCORPORATEDWindsor, CT · Dissolved | Windsor, CT | Corporation | Oct 16, 1972 | Dissolved |
| WM. R. SMITH REALTY, INC.Windsor, CT · Dissolved | Windsor, CT | Corporation | Mar 5, 1974 | Dissolved |
| WILLIAMS RENTALS, INC.Windsor, CT · Dissolved | Windsor, CT | Corporation | Mar 26, 1973 | Dissolved |
| WILSON PAINT AND WALLPAPER CENTRE, INC.Windsor, CT · Active | Windsor, CT | Corporation | Feb 3, 1959 | Active |
| WINDSOR LOTTERY INC.Windsor, CT · Forfeited | Windsor, CT | Corporation | Feb 16, 1977 | Forfeited |
| HARTFORD, CONNECTICUT CHAPTER OF NATIONAL ASSOCIATION OF WOMEN IN CONSTRUCTION, INC.Windsor, CT · Active | Windsor, CT | Corporation | Jul 26, 1977 | Active |
| CAPITOL REGION LIBRARY COUNCIL, INC.Windsor, CT · Merged | Windsor, CT | Corporation | Apr 11, 1969 | Merged |
| CIVITAN CLUB OF WINDSOR, CONN., INC. THEWindsor, CT · Dissolved | Windsor, CT | Corporation | Dec 15, 1972 | Dissolved |
| CONNECTICUT DAUGHTERS OF THE AMERICAN REVOLUTION INCORPORATEDWindsor, CT · Active | Windsor, CT | Corporation | Feb 3, 1917 | Active |
| CONNECTICUT DENTAL LABORATORY ASSOCIATION, INC.Windsor, CT · Dissolved | Windsor, CT | Corporation | Jan 29, 1974 | Dissolved |
| CONNECTICUT VALLEY PEDIATRIC CENTER, INC.Windsor, CT · Active | Windsor, CT | Corporation | Jan 9, 1963 | Active |
| ELLSWORTH MEMORIAL ASSOCIATION INC.Windsor, CT · Active | Windsor, CT | Corporation | Oct 28, 1903 | Active |
| NORTHEAST ENVIRONMENTAL BALANCING BUREAU, INC.Windsor, CT · Active | Windsor, CT | Corporation | Nov 18, 1976 | Active |
| GRANBY GRANGE #5, PATRONS OF HUSBANDRY INCORPORATED, THEWindsor, CT · Active | Windsor, CT | Corporation | Feb 20, 1950 | Active |
| GRAY-DICKINSON POST NO. 59, AMERICAN LEGION, INCORPORATEDWindsor, CT · Active | Windsor, CT | Corporation | Jul 16, 1929 | Active |
| YANKEE COUNCIL, AMERICAN YOUTH HOSTELS, INC.Windsor, CT · Dissolved | Windsor, CT | Corporation | Jul 23, 1958 | Dissolved |
| ISLAMIC CENTER OF CONNECTICUT, INC.Windsor, CT · Active | Windsor, CT | Corporation | May 6, 1975 | Active |
| LOOMIS FAMILY ASSOCIATION INC., THEWindsor, CT · Forfeited | Windsor, CT | Corporation | Aug 14, 1969 | Forfeited |
| ORCHARD ACRES WATER ASSOCIATION, INCORPORATEDWindsor, CT · Active | Windsor, CT | Corporation | Mar 9, 1949 | Active |
| RAYMOND B. MCHUGH POST 4740, VETERANS OF FOREIGN WARS OF THE UNITED STATES INCORPORATEDWindsor, CT · Active | Windsor, CT | Corporation | Dec 1, 1970 | Active |
| SHAD FEST BUREAU, INC.Windsor, CT · Active | Windsor, CT | Corporation | May 7, 1975 | Active |
| SMITH COVE YACHT CLUB, INC.Windsor, CT · Dissolved | Windsor, CT | Corporation | Jul 1, 1976 | Dissolved |
| WILSON VOLUNTEER FIRE COMPANY, INC.Windsor, CT · Active | Windsor, CT | Corporation | Dec 6, 1955 | Active |
| WINDSOR, CONNECTICUT CHAPTER #1101 OF AARP, INC.Windsor, CT · Dissolved | Windsor, CT | Corporation | Jul 26, 1972 | Dissolved |
| THE WINDSOR GRANGE HALL ASSOCIATION, INCORPORATEDWindsor, CT · Dissolved | Windsor, CT | Corporation | Jul 21, 1949 | Dissolved |
| WINDSOR GRANGE #2 INCORPORATEDWindsor, CT · Dissolved | Windsor, CT | Corporation | May 10, 1977 | Dissolved |
| THE WINDSOR HISTORICAL SOCIETY OF WINDSOR, CONNECTICUT, INC.Windsor, CT · Active | Windsor, CT | Corporation | Feb 21, 1923 | Active |
| WINDSOR INDEPENDENT LIVING ASSOCIATION, INC.Windsor, CT · Active | Windsor, CT | Corporation | May 13, 1976 | Active |
| WINDSOR JUNIOR WOMAN'S CLUB, INC.Windsor, CT · Active | Windsor, CT | Corporation | Jun 5, 1970 | Active |
| THE WINDSOR CATHOLIC MEN'S CLUB, INCORPORATEDWindsor, CT · Active | Windsor, CT | Corporation | Feb 9, 1953 | Active |
| WINDSOR LIBRARY ASSOCIATIONWindsor, CT · Active | Windsor, CT | Corporation | Jun 21, 1889 | Active |
| WINDSOR LITTLE LEAGUE, INCORPORATEDWindsor, CT · Active | Windsor, CT | Corporation | Apr 2, 1951 | Active |
| WINDSOR LIONS CLUB, INC.Windsor, CT · Active | Windsor, CT | Corporation | Jun 5, 1964 | Active |
| WINDSOR MARKSMEN'S ASSOCIATION, INCORPORATEDWindsor, CT · Active | Windsor, CT | Corporation | May 26, 1961 | Active |
| WINDSOR MASONIC BUILDING ASSOCIATION, INCORPORATED, THEWindsor, CT · Active | Windsor, CT | Corporation | May 24, 1951 | Active |
| WINDSOR ROD & GUN CLUB, INCORPORATED, THEWindsor, CT · Forfeited | Windsor, CT | Corporation | Jan 29, 1951 | Forfeited |
| WINDSOR VOLUNTEER FIRE DEPARTMENT, INCORPORATEDWindsor, CT · Active | Windsor, CT | Corporation | Apr 21, 1954 | Active |
| SPEDCONNECTICUT, INC.Windsor, CT · Forfeited | Windsor, CT | Corporation | Feb 6, 1964 | Forfeited |
| CSI CONNECTICUT, INC.Windsor, CT · Merged | Windsor, CT | Corporation | Mar 16, 1962 | Merged |
| LIPIN/DIETZ ASSOCIATES, INC.Windsor, CT · Active | Windsor, CT | Corporation | Jan 12, 1978 | Active |
| A. D. C. CORP.Windsor, CT · Active | Windsor, CT | Corporation | Jan 17, 1978 | Active |
| MUZIBUL CHOWDHURY, M.D., P.C.Windsor, CT · Dissolved | Windsor, CT | Corporation | Apr 3, 1978 | Dissolved |
| EASTERSEALS CAPITAL REGION & EASTERN CONNECTICUT, INC.Windsor, CT · Active | Windsor, CT | Corporation | Jul 29, 1948 | Active |