| CEDAR GROVE CONDOMINIUM ASSOCIATION, INC.Shelton, CT · Active | Shelton, CT | Corporation | Jun 12, 1974 | Active |
| BOYS AND GIRLS CLUB OF THE LOWER NAUGATUCK VALLEY, INC. THEShelton, CT · Active | Shelton, CT | Corporation | Oct 4, 1926 | Active |
| Connecticut Technology Engineering Education Association Inc.Shelton, CT · Active | Shelton, CT | Corporation | Apr 15, 1963 | Active |
| ECHO HOSE HOOK AND LADDER COMPANY INCORPORATED, THEShelton, CT · Active | Shelton, CT | Corporation | Feb 9, 1954 | Active |
| FIRST PLAVECKY SOCIETY OF THE HOLY TRINITY INCORPORATEDShelton, CT · Active | Shelton, CT | Corporation | Feb 8, 1911 | Active |
| FLORA AND MARY HEWITT MEMORIAL HOSPITAL, INCORPORATED, THEShelton, CT · Dissolved | Shelton, CT | Corporation | Apr 25, 1949 | Dissolved |
| FRIEND A. RUSS FUND, INCORPORATEDShelton, CT · Active | Shelton, CT | Corporation | Nov 22, 1918 | Active |
| GEORGE WASHINGTON LODGE NO. 82 F. & A. M. MASONIC TEMPLE ASSOCIATION, INCORPORATEDShelton, CT · Forfeited | Shelton, CT | Corporation | Mar 8, 1921 | Forfeited |
| GERMANIA SPORT CLUB INC.Shelton, CT · Dissolved | Shelton, CT | Corporation | Oct 24, 1969 | Dissolved |
| FRANK JACOBY FOUNDATION, INCORPORATED THEShelton, CT · Dissolved | Shelton, CT | Corporation | Jan 2, 1951 | Dissolved |
| HARTFORD COUNTY MEDICAL FOUNDATION,INCORPORATED, THEShelton, CT · Active | Shelton, CT | Corporation | Sep 18, 1967 | Active |
| JOHN AND CARRIE SANTANGELO FOUNDATION, INC. THEShelton, CT · Active | Shelton, CT | Corporation | Dec 22, 1952 | Active |
| NATIONAL SHOOTING SPORTS FOUNDATION, INC.Shelton, CT · Active | Shelton, CT | Corporation | Oct 27, 1969 | Active |
| GREATER BRIDGEPORT JUNIOR HOCKEY ASSOCIATION, INC., THEShelton, CT · Forfeited | Shelton, CT | Corporation | May 6, 1969 | Forfeited |
| RECOVERY NETWORK OF PROGRAMS, INC.Shelton, CT · Active | Shelton, CT | Corporation | May 24, 1974 | Active |
| HARBOR VALLEY YACHT CLUB, INC.Shelton, CT · Active | Shelton, CT | Corporation | Aug 13, 1974 | Active |
| HARRY B. BROWNSON COUNTRY CLUB, INC. THEShelton, CT · Active | Shelton, CT | Corporation | Aug 10, 1959 | Active |
| HAWKSTONE TERRACE ASSOCIATION, INCORPORATEDShelton, CT · Dissolved | Shelton, CT | Corporation | Dec 10, 1952 | Dissolved |
| HIGHLAND GOLF CLUB OF SHELTON, INC., THEShelton, CT · Active | Shelton, CT | Corporation | Apr 30, 1927 | Active |
| HUNTINGTON FIRE COMPANY, INCORPORATEDShelton, CT · Active | Shelton, CT | Corporation | Jan 16, 1920 | Active |
| SHELTON HISTORICAL SOCIETY, INC.Shelton, CT · Active | Shelton, CT | Corporation | May 28, 1970 | Active |
| JUNIOR ACHIEVEMENT OF GREATER FAIRFIELD COUNTY, INC.Shelton, CT · Active | Shelton, CT | Corporation | Nov 3, 1950 | Active |
| KIWANIS CLUB OF STAMFORD, INC.Shelton, CT · Active | Shelton, CT | Corporation | Jun 2, 1961 | Active |
| GREATER VALLEY CHAMBER OF COMMERCE, INC.Shelton, CT · Active | Shelton, CT | Corporation | Feb 27, 1964 | Active |
| MICHAEL BOURQUE MEMORIAL FUND FOR CHILDREN, INC., THEShelton, CT · Forfeited | Shelton, CT | Corporation | Apr 30, 1975 | Forfeited |
| THE GREATER BRIDGEPORT ATHLETIC ASSOCIATION, INC.Shelton, CT · Dissolved | Shelton, CT | Corporation | Apr 10, 1970 | Dissolved |
| ROTARY CLUB OF FAIRFIELD, CONNECTICUT, INCORPORATED, THEShelton, CT · Active | Shelton, CT | Corporation | May 23, 1962 | Active |
| REVOLVER LEAGUE OF CONNECTICUT, INCORPORATED, THEShelton, CT · Dissolved | Shelton, CT | Corporation | Sep 3, 1937 | Dissolved |
| SHELTON LAND CONSERVATION TRUST, INC.Shelton, CT · Active | Shelton, CT | Corporation | Jan 16, 1970 | Active |
| SHELTON LITTLE LEAGUE, INCORPORATED,THEShelton, CT · Forfeited | Shelton, CT | Corporation | Apr 6, 1951 | Forfeited |
| SHELTON VOLUNTEER FIRE COMPANY, NUMBER 4,PINE ROCK PARK, INCORPORATEDShelton, CT · Active | Shelton, CT | Corporation | Aug 9, 1933 | Active |
| SLOVAK CATHOLIC SOKOL BRANCH #33 OF ANSONIA, CT. INC.Shelton, CT · Active | Shelton, CT | Corporation | Jul 13, 1909 | Active |
| STRATFORD AMATEUR RADIO CLUB INCORPORATED, THEShelton, CT · Forfeited | Shelton, CT | Corporation | May 18, 1956 | Forfeited |
| TIBETAN SPANIEL CLUB OF AMERICA, INC., THEShelton, CT · Active | Shelton, CT | Corporation | Jul 17, 1973 | Active |
| VALLEY DETACHMENT MARINE CORPS LEAGUE, INC.Shelton, CT · Active | Shelton, CT | Corporation | Dec 21, 1967 | Active |
| WELLES FAMILY ASSOCIATION, (DESCENDANTS OF GOVERNOR THOMAS WELLES) INCORPORATED THEShelton, CT · Active | Shelton, CT | Corporation | Nov 21, 1938 | Active |
| WHITE HILLS VOLUNTARY FIRE COMPANY NO. 5 OF SHELTON, CONNECTICUT, INCORPORATED, THEShelton, CT · Active | Shelton, CT | Corporation | Feb 20, 1948 | Active |
| CZECHOSLOVAK AMERICAN CLUB OF SHELTON, INCORPORATED THEShelton, CT · Active | Shelton, CT | Corporation | Jun 29, 1938 | Active |
| THE 71 CORPORATIONShelton, CT · Dissolved | Shelton, CT | Corporation | Jul 19, 1949 | Dissolved |
| NEW DAWN SINGERS, INC. THEShelton, CT · Forfeited | Shelton, CT | Corporation | May 23, 1973 | Forfeited |
| STAMFORD CHAPTER NO. 13, DISABLED AMERICAN VETERANS, INC.Huntington, CT · Active | Huntington, CT | Corporation | Dec 2, 1963 | Active |
| WESLEY HEIGHTS, INC.Shelton, CT · Active | Shelton, CT | Corporation | Jan 29, 1965 | Active |
| English Congregation of Jehovah's Witnesses, Shelton, Connecticut, Inc.Shelton, CT · Active | Shelton, CT | Corporation | Dec 8, 1959 | Active |
| PROTECTIVE SYSTEMS, INC.Shelton, CT · Active | Shelton, CT | Corporation | Nov 17, 1977 | Active |
| DOUG LEIGH & COMPANYHuntington, CT · Dissolved | Huntington, CT | Corporation | Sep 9, 1977 | Dissolved |
| BOTTI'S AUTO SALES & SERVICE, INC.Shelton, CT · Dissolved | Shelton, CT | Corporation | Dec 5, 1977 | Dissolved |
| NISHBALL, CARP, NIEDERMEIER, PACOWTA & CO., P.C.Shelton, CT · Merged | Shelton, CT | Corporation | Dec 1, 1977 | Merged |
| HUBBELL INCORPORATEDShelton, CT · Active | Shelton, CT | Corporation | May 10, 1905 | Active |
| EAO SWITCH CORPORATIONShelton, CT · Active | Shelton, CT | Corporation | Jan 17, 1978 | Active |
| SHELTON CONSTRUCTION SERVICES AND SUPPLY COMPANY INC.Shelton, CT · Dissolved | Shelton, CT | Corporation | Dec 27, 1977 | Dissolved |