| VALLEY HOME & GARDEN CENTRE, INC.Simsbury, CT · Active | Simsbury, CT | Corporation | Sep 12, 1968 | Active |
| W.F. CURTISS & SONS, INC.Simsbury, CT · Dissolved | Simsbury, CT | Corporation | Jul 5, 1962 | Dissolved |
| WAGNER FORD SALES, INC.Simsbury, CT · Dissolved | Simsbury, CT | Corporation | Apr 27, 1954 | Dissolved |
| MAPLE COURT HOME OWNERS' ASSOCIATION, INC.Simsbury, CT · Active | Simsbury, CT | Corporation | Aug 4, 1977 | Active |
| THE COBB SCHOOL MONTESSORI, INC.Simsbury, CT · Active | Simsbury, CT | Corporation | Jun 9, 1977 | Active |
| CHILDRENS CENTER, INC., THESimsbury, CT · Active | Simsbury, CT | Corporation | Aug 28, 1975 | Active |
| DAVEY-BICKFORD HOME OWNERS' ASSOCIATION, INC.Simsbury, CT · Active | Simsbury, CT | Corporation | Dec 16, 1974 | Active |
| ETHEL WALKER SCHOOL, INCORPORATED, THESimsbury, CT · Active | Simsbury, CT | Corporation | Jun 10, 1954 | Active |
| FARMINGTON RIVER WATERSHED ASSOCIATION, INC.Simsbury, CT · Active | Simsbury, CT | Corporation | Mar 30, 1960 | Active |
| TANAGER HILL FOUNDATION, INC.Simsbury, CT · Dissolved | Simsbury, CT | Corporation | Nov 29, 1963 | Dissolved |
| GREAT HAMMOCK BEACH ASSOCIATION, INCORPORATEDSimbsbury, CT · Active | Simbsbury, CT | Corporation | Aug 27, 1957 | Active |
| HAZELMEADOW I HOME OWNERS' ASSOCIATION, INC.Simsbury, CT · Active | Simsbury, CT | Corporation | Jul 27, 1976 | Active |
| HOP MEADOW COUNTRY CLUB INC.Simsbury, CT · Active | Simsbury, CT | Corporation | Jan 18, 1962 | Active |
| MASONIC BUILDING ASSOCIATION OF SIMSBURY INCORPORATED, THESimsbury, CT · Dissolved | Simsbury, CT | Corporation | Oct 8, 1926 | Dissolved |
| THE MCLEAN FOUNDATION, INC.Simsbury, CT · Merged | Simsbury, CT | Corporation | Jun 3, 1969 | Merged |
| METACON GUN CLUB INCORPORATED, THESimsbury, CT · Active | Simsbury, CT | Corporation | May 21, 1959 | Active |
| NATIONAL COUNCIL OF JEWISH WOMEN-GREATER HARTFORD SECTION, INC.Simsbury, CT · Dissolved | Simsbury, CT | Corporation | Oct 31, 1975 | Dissolved |
| SIMSBURY ABC PROGRAM, INC., THESimsbury, CT · Active | Simsbury, CT | Corporation | Apr 5, 1973 | Active |
| Granby-Simsbury Chamber of Commerce, Inc.Simsbury, CT · Active | Simsbury, CT | Corporation | Oct 3, 1961 | Active |
| THE SIMSBURY FISH & GAME CLUB, INCORPORATEDSimsbury, CT · Active | Simsbury, CT | Corporation | Apr 17, 1940 | Active |
| SIMSBURY HISTORICAL SOCIETY, INCORPORATED THESimsbury, CT · Active | Simsbury, CT | Corporation | Mar 20, 1912 | Active |
| SIMSBURY JUNIOR WOMAN'S CLUB, INC.Simbury, CT · Forfeited | Simbury, CT | Corporation | Jan 20, 1965 | Forfeited |
| SIMSBURY LAND TRUST, INC.Simsbury, CT · Active | Simsbury, CT | Corporation | Jul 16, 1976 | Active |
| SIMSBURY LIGHT OPERA COMPANY, INCORPORATED, THESimsbury, CT · Active | Simsbury, CT | Corporation | Jun 17, 1947 | Active |
| SIMSBURY LITTLE LEAGUE BASEBALL, INC.Simsbury, CT · Active | Simsbury, CT | Corporation | Mar 26, 1951 | Active |
| SIMSBURY MUSIC AND ARTS CENTER, INC.Simsbury, CT · Dissolved | Simsbury, CT | Corporation | Jul 17, 1968 | Dissolved |
| SIMSBURY SUMMER THEATER FOR YOUTH, INC., THESimsbury, CT · Active | Simsbury, CT | Corporation | Aug 24, 1966 | Active |
| VNA VALLEY CARE, INC.Simsbury, CT · Dissolved | Simsbury, CT | Corporation | Feb 17, 1943 | Dissolved |
| SIMSBURY VOLUNTEER AMBULANCE ASSOCIATION, INCORPORATEDSimsbury, CT · Active | Simsbury, CT | Corporation | Oct 3, 1957 | Active |
| SIMSBURY VOLUNTEER FIRE COMPANY, INCORPORATED THESimsbury, CT · Active | Simsbury, CT | Corporation | Sep 22, 1944 | Active |
| TRUSTEES OF WESTMINSTER SCHOOL, INCORPORATED, THESimsbury, CT · Active | Simsbury, CT | Corporation | Jan 26, 1935 | Active |
| WEST HILL LAKE SHORE PROPERTY OWNERS ASSOCIATION, INCORPORATED, THESimsbury, CT · Active | Simsbury, CT | Corporation | Jul 1, 1959 | Active |
| PO-NE-MAH, INC.Simsbury, CT · Forfeited | Simsbury, CT | Corporation | Nov 15, 1977 | Forfeited |
| ENERGY MAINTENANCE CORP.Simsbury, CT · Dissolved | Simsbury, CT | Corporation | Dec 13, 1977 | Dissolved |
| J.G. MANAGEMENT SERVICES, LTD.Simsbury, CT · Dissolved | Simsbury, CT | Corporation | Feb 1, 1978 | Dissolved |
| CANTON VISITING NURSE ASSOCIATION, INC.Simsbury, CT · Active | Simsbury, CT | Corporation | Jun 12, 1941 | Active |
| HOLLROCK ENGINEERING, INC.Simsbury, CT · Merged | Simsbury, CT | Corporation | Oct 3, 1977 | Merged |
| VALLEY PROPERTIES INC.Simsbury, CT · Dissolved | Simsbury, CT | Corporation | Nov 1, 1977 | Dissolved |
| ABIGAIL PHELPS CHAPTER, DAUGHTERS OF AMERICAN REVOLUTION, INC.Simsbury, CT · Active | Simsbury, CT | Corporation | Mar 13, 1978 | Active |
| AMERIMET CORPORATIONSimsbury, CT · Forfeited | Simsbury, CT | Corporation | May 1, 1978 | Forfeited |
| SIMSBURY ELECTRONICS, INC.Simsbury, CT · Forfeited | Simsbury, CT | Corporation | Jun 29, 1978 | Forfeited |
| WARNER LANDSCAPING CO., INC.Simsbury, CT · Active | Simsbury, CT | Corporation | Jul 5, 1978 | Active |
| THE MASOOLI PROJECT, INC.Simsbury, CT · Active | Simsbury, CT | Corporation | Aug 22, 1978 | Active |
| RJV, INC.Simsbury, CT · Active | Simsbury, CT | Corporation | Dec 3, 1956 | Active |
| TOURS OF DISTINCTION, INC.Simsbury, CT · Active | Simsbury, CT | Corporation | Mar 15, 1967 | Active |
| THOMAS J. YANIK, D.D.S., P.C.Simsbury, CT · Dissolved | Simsbury, CT | Corporation | Dec 1, 1978 | Dissolved |
| CONNECTICUT BUSINESS BROKERAGE, INC.Simsbury, CT · Dissolved | Simsbury, CT | Corporation | Dec 26, 1978 | Dissolved |
| CHURCH OF CHRIST IN SIMSBURY, INC. THESimsbury, CT · Dissolved | Simsbury, CT | Corporation | Dec 28, 1978 | Dissolved |
| THREE D DEPARTMENTS, INC.Simsbury, CT · Revoked | Simsbury, CT | Corporation | Oct 15, 1959 | Revoked |
| STONEFIELD, INC.Simsbury, CT · Dissolved | Simsbury, CT | Corporation | Mar 6, 1979 | Dissolved |