| DE KADT MARKETING AND RESEARCH, INC.Ridgefield, CT · Dissolved | Ridgefield, CT | Corporation | Apr 23, 1968 | Dissolved |
| RIDGEFIELD HARDWARE COMPANY, INC.Ridgefield, CT · Active | Ridgefield, CT | Corporation | Aug 7, 1968 | Active |
| RIDGEFIELD PEDIATRIC ASSOCIATES, P.C.Ridgefield, CT · Active | Ridgefield, CT | Corporation | Jan 14, 1976 | Active |
| SIEMA COMPANY INCORPORATED THERidgefield, CT · Dissolved | Ridgefield, CT | Corporation | Dec 10, 1975 | Dissolved |
| STONEHENGE, INC.Ridgefield, CT · Forfeited | Ridgefield, CT | Corporation | Jun 29, 1973 | Forfeited |
| SUGAR HOLLOW PARK, INC.Ridgefield, CT · Dissolved | Ridgefield, CT | Corporation | Nov 8, 1966 | Dissolved |
| IVY DESIGNS, INC.Ridgefield, CT · Dissolved | Ridgefield, CT | Corporation | May 20, 1970 | Dissolved |
| TONEMAR CONSTRUCTION, INCORPORATEDRidgefield, CT · Dissolved | Ridgefield, CT | Corporation | Mar 29, 1977 | Dissolved |
| VENICE PIZZERIA, INC.Ridgefield, CT · Dissolved | Ridgefield, CT | Corporation | Apr 6, 1972 | Dissolved |
| ACRE LANE, INC.Ridgefield, CT · Dissolved | Ridgefield, CT | Corporation | May 4, 1972 | Dissolved |
| BOYS & GIRLS CLUB OF RIDGEFIELD, INC.Ridgefield, CT · Active | Ridgefield, CT | Corporation | Jul 27, 1936 | Active |
| MAMWELL, INC.Ridgefield, CT · Active | Ridgefield, CT | Corporation | May 6, 1971 | Active |
| EVERETT RAY SEYMOUR POST NO. 78 DEPARTMENT OF CONNECTICUT, THE AMERICAN LEGION, INCORPORATEDRidgefield, CT · Active | Ridgefield, CT | Corporation | May 1, 1926 | Active |
| RIDGEFIELD FRESH AIR ASSOCIATIONRidgefield, CT · Active | Ridgefield, CT | Corporation | Oct 20, 1899 | Active |
| RVNAhealth, Inc.Ridgefield, CT · Active | Ridgefield, CT | Corporation | Dec 21, 1940 | Active |
| EIGHT LAKES COMMUNITY ASSOCIATION, INC.Ridgefield, CT · Active | Ridgefield, CT | Corporation | Nov 23, 1955 | Active |
| FOX HILL LAKE ASSOCIATION,INCORPORATED, THERidgefield, CT · Active | Ridgefield, CT | Corporation | Aug 9, 1951 | Active |
| FRIENDS OF THE RIDGEFIELD LIBRARY ASSOCIATION, INC.Ridgefield, CT · Active | Ridgefield, CT | Corporation | Oct 22, 1975 | Active |
| WELLER FOUNDATION, INCORPORATED THERidgefield, CT · Active | Ridgefield, CT | Corporation | Dec 9, 1959 | Active |
| GRAND VIEW MANOR ASSOCIATION, INCORPORATED, THERidgefield, CT · Active | Ridgefield, CT | Corporation | Jun 30, 1958 | Active |
| KEELER TAVERN PRESERVATION SOCIETY, INC., THERidgefield, CT · Active | Ridgefield, CT | Corporation | Aug 23, 1965 | Active |
| LAKELAND HILLS ASSOCIATION, INCORPORATEDRidgefield, CT · Forfeited | Ridgefield, CT | Corporation | Apr 24, 1957 | Forfeited |
| LEAGUE OF WOMEN VOTERS OF RIDGEFIELD, INC.Ridgefield, CT · Active | Ridgefield, CT | Corporation | Sep 30, 1974 | Active |
| LIONS CLUB OF RIDGEFIELD, INCORPORATED, THERidgefield, CT · Active | Ridgefield, CT | Corporation | Dec 15, 1941 | Active |
| MAMANASCO LAKE IMPROVEMENT FUND, INC.Ridgefield, CT · Active | Ridgefield, CT | Corporation | Oct 18, 1971 | Active |
| MASONIC TEMPLE ASSOCIATION OF RIDGEFIELD, INCORPORATEDRidgefield, CT · Active | Ridgefield, CT | Corporation | Jan 23, 1939 | Active |
| MEALS ON WHEELS OF RIDGEFIELD, CONNECTICUT, INC.Ridgefield, CT · Active | Ridgefield, CT | Corporation | Aug 8, 1974 | Active |
| MIMOSA HOME OWNERS ASSOCIATION, INC.Ridgefield, CT · Active | Ridgefield, CT | Corporation | May 12, 1977 | Active |
| NORWALK SAIL AND POWER SQUADRON, INCORPORATEDRidgefield, CT · Active | Ridgefield, CT | Corporation | Dec 4, 1957 | Active |
| PILGRIM LODGE OF ODD FELLOWS INCORPORATEDRidgefield, CT · Forfeited | Ridgefield, CT | Corporation | Dec 16, 1929 | Forfeited |
| RIDGEFIELD ATHLETIC ASSOCIATION CORP.Ridgefield, CT · Dissolved | Ridgefield, CT | Corporation | Apr 12, 1971 | Dissolved |
| RIDGEFIELD BOARD OF REALTORS, INCORPORATEDRidgefield, CT · Merged | Ridgefield, CT | Corporation | Oct 16, 1961 | Merged |
| RIDGEFIELD CHAMBER OF COMMERCE, INC.Ridgefield, CT · Active | Ridgefield, CT | Corporation | Oct 18, 1966 | Active |
| RIDGEFIELD COMMUNITY KINDERGARTEN, INC., THERidgefield, CT · Active | Ridgefield, CT | Corporation | Mar 28, 1966 | Active |
| RIDGEFIELD FUND, INCORPORATEDRidgefield, CT · Active | Ridgefield, CT | Corporation | Sep 29, 1969 | Active |
| RIDGEFIELD GUILD OF ARTISTS, INC.Ridgefield, CT · Active | Ridgefield, CT | Corporation | Sep 6, 1974 | Active |
| RIDGEFIELD POST NO. 3052, VETERANS OF FOREIGN WARS OF THE UNITED STATES, INCORPORATEDRidgefield, CT · Forfeited | Ridgefield, CT | Corporation | Sep 27, 1973 | Forfeited |
| RIDGEFIELD PRESERVATION TRUST, INC., THERidgefield, CT · Dissolved | Ridgefield, CT | Corporation | Nov 7, 1975 | Dissolved |
| RIDGEFIELD SYMPHONY ORCHESTRA, INC.Ridgefield, CT · Active | Ridgefield, CT | Corporation | Nov 30, 1964 | Active |
| RIDGEFIELD VETERANS' MEMORIAL COMMUNITY ASSOCIATION, INCORPORATED, THERidgefield, CT · Active | Ridgefield, CT | Corporation | Aug 20, 1953 | Active |
| RIDGEFIELD WOMAN'S CLUB, INC.Ridgefield, CT · Active | Ridgefield, CT | Corporation | Sep 8, 1972 | Active |
| SILVER SPRING COUNTRY CLUB, INCORPORATED, THERidgefield, CT · Active | Ridgefield, CT | Corporation | May 27, 1971 | Active |
| SOCCER CLUB OF RIDGEFIELD, CONN., INC., THERidgefield, CT · Active | Ridgefield, CT | Corporation | Sep 19, 1975 | Active |
| STEPPING STONE FARM, INC.Ridgefield, CT · Active | Ridgefield, CT | Corporation | Dec 10, 1975 | Active |
| TWIXT HILLS HOMEOWNERS ASSOCIATION, INC.Ridgefield, CT · Forfeited | Ridgefield, CT | Corporation | Apr 24, 1962 | Forfeited |
| WESTERN CONNECTICUT ESTATE & TAX PLANNING COUNCIL, INC.Ridgefield, CT · Active | Ridgefield, CT | Corporation | Nov 1, 1976 | Active |
| THE ALDRICH CONTEMPORARY ART MUSEUM, INC.Ridgefield, CT · Active | Ridgefield, CT | Corporation | Feb 13, 1964 | Active |
| RIDGEFIELD TENNIS CLUB, INC.Ridgefield, CT · Dissolved | Ridgefield, CT | Corporation | Sep 28, 1970 | Dissolved |
| ACE TIRE CO., INC.Ridgefield, CT · Dissolved | Ridgefield, CT | Corporation | Jan 3, 1978 | Dissolved |
| RANDALL G. BALDWIN, D.M.D., P.C.Ridgefield, CT · Dissolved | Ridgefield, CT | Corporation | Jan 18, 1978 | Dissolved |