| THE WADE CORPORATIONLongboat Key, FL · Inactive | Longboat Key, FL | Corporation | Sep 17, 1980 | Inactive |
| ROBERT N. BASKIN, M.D., P.A.Longboat Key, FL · Active | Longboat Key, FL | Corporation | Jun 15, 1981 | Active |
| MATECU CORPORATIONLongboat, FL · Inactive | Longboat, FL | Corporation | Jul 10, 1981 | Inactive |
| FLACCUS CORPORATIONLongboat Key, FL · Inactive | Longboat Key, FL | Corporation | Aug 3, 1981 | Inactive |
| GRAHAM-SAND, INC.Longboat Key, FL · Inactive | Longboat Key, FL | Corporation | Aug 5, 1981 | Inactive |
| LONGBOAT LIBRARY INCLongboat Key, FL · Active | Longboat Key, FL | Nonprofit | Mar 20, 1961 | Active |
| THE LONGBOAT ISLAND CHAPEL, INC.Longboat Key, FL · Active | Longboat Key, FL | Nonprofit | Jul 31, 1961 | Active |
| BUTTONWOOD HARBOUR ASSOCIATION, INC.Longboat Key, FL · Active | Longboat Key, FL | Nonprofit | Sep 7, 1961 | Active |
| COUNTRY CLUB SHORES CIVIC ASSOCIATION, INC.Longboat Key, FL · Active | Longboat Key, FL | Nonprofit | Jan 24, 1963 | Active |
| COUNTRY CLUB ASSOCIATION, INC.Longboat Key, FL · Active | Longboat Key, FL | Nonprofit | May 25, 1964 | Active |
| THE COUNTRY CLUB SHORES ASSOCIATION, UNIT 5, INCLongboat Key, FL · Active | Longboat Key, FL | Nonprofit | Apr 21, 1966 | Active |
| UNIT 3-COUNTRY CLUB SHORES ASSOCIATION, INC.Longboat Key, FL · Active | Longboat Key, FL | Nonprofit | May 31, 1967 | Active |
| EMERALD HARBOR ASSOCIATION, INC.Longboat Key, FL · Active | Longboat Key, FL | Nonprofit | Mar 13, 1968 | Active |
| LONGBOAT KEY CENTER FOR THE ARTS, INC.Longboat Key, FL · Inactive | Longboat Key, FL | Nonprofit | Sep 6, 1968 | Inactive |
| LONGBOAT KEY TOWERS ASSOCIATION, INC.Longboat Key, FL · Active | Longboat Key, FL | Nonprofit | Feb 7, 1969 | Active |
| FIRST LONGBOAT CONDOMINIUM, INC.Longboat Key, FL · Inactive | Longboat Key, FL | Nonprofit | Nov 6, 1969 | Inactive |
| SECOND LONGBOAT CONDOMINIUM, INC.Longboat Key, FL · Inactive | Longboat Key, FL | Nonprofit | Dec 16, 1969 | Inactive |
| LONGBOAT HARBOUR TOWERS CONDOMINIUM, INC.Longboat Key, FL · Active | Longboat Key, FL | Nonprofit | Feb 3, 1970 | Active |
| ISLANDER CLUB OF LONGBOAT CONDOMINIUM ASSOCIATION, INC.Longboat Key, FL · Active | Longboat Key, FL | Nonprofit | Aug 31, 1970 | Active |
| WHITNEY BEACH CONSERVANCY, INC.Longboat Key, FL · Active | Longboat Key, FL | Nonprofit | Apr 6, 1971 | Active |
| THE SHORE CONDOMINIUM ASSOCIATION, INC.Longboat Key, FL · Active | Longboat Key, FL | Nonprofit | Jul 20, 1971 | Active |
| LONGBOAT KEY CASA DEL MAR, INC.Longboat Key, FL · Active | Longboat Key, FL | Nonprofit | Aug 16, 1971 | Active |
| COVERT I ASSOCIATION, INC.Longboat Key, FL · Active | Longboat Key, FL | Nonprofit | Jan 28, 1972 | Active |
| LONGBOAT HARBOUR OWNERS ASSOCIATION, INC.Longboat Key, FL · Active | Longboat Key, FL | Nonprofit | Mar 31, 1972 | Active |
| COVERT II ASSOCIATION, INC.Longboat Key, FL · Active | Longboat Key, FL | Nonprofit | Jun 13, 1972 | Active |
| CLUB LONGBOAT BEACH AND TENNIS CONDOMINIUM ASSOCIATION, INC.Longboat Key, FL · Active | Longboat Key, FL | Nonprofit | Jun 30, 1972 | Active |
| VILLA DOS PALMAS CONDOMINIUM ASSOCIATION, INC.Longboat Key, FL · Active | Longboat Key, FL | Nonprofit | Jul 18, 1972 | Active |
| BEACH HARBOR CLUB ASSOCIATION, INCLongboat Key, FL · Active | Longboat Key, FL | Nonprofit | Aug 24, 1972 | Active |
| LONGBOAT KEY VOLUNTEER FIRE DEPARTMENT, INCLongboat Key, FL · Inactive | Longboat Key, FL | Nonprofit | Aug 29, 1972 | Inactive |
| PELICAN HARBOUR AND BEACH CLUB ASSOCIATION, INC.Longboat Key, FL · Active | Longboat Key, FL | Nonprofit | Dec 19, 1972 | Active |
| LONGBOAT KEY YACHT & TENNIS CLUB ASSOCIATION, INC.Longboat Key, FL · Active | Longboat Key, FL | Nonprofit | Jan 12, 1973 | Active |
| WINDWARD BAY, INC.Longboat Key, FL · Active | Longboat Key, FL | Nonprofit | Feb 7, 1973 | Active |
| LA PLAYA A CONDOMINIUM, INC.Longboat Key, FL · Active | Longboat Key, FL | Nonprofit | Mar 1, 1973 | Active |
| KIWANIS CLUB OF LONGBOAT KEY, INC.Longboat Key, FL · Active | Longboat Key, FL | Nonprofit | May 3, 1973 | Active |
| SEAPLACE ASSOCIATION, INC.Longboat Key, FL · Active | Longboat Key, FL | Nonprofit | Jun 14, 1973 | Active |
| VILLA CASUARINA ASSOCIATION, INC.Longboat Key, FL · Active | Longboat Key, FL | Nonprofit | Sep 20, 1973 | Active |
| COLONY BEACH & TENNIS CLUB ASSOCIATION, INC.Longboat Key, FL · Inactive | Longboat Key, FL | Nonprofit | Nov 29, 1973 | Inactive |
| AQUARIUS CLUB CONDOMINIUM ASSOCIATION, INC.Longboat Key, FL · Active | Longboat Key, FL | Nonprofit | Jan 21, 1974 | Active |
| PORTOBELLO OWNERS ASSOCIATION, INC.Longboat Key, FL · Active | Longboat Key, FL | Nonprofit | Feb 26, 1974 | Active |
| LONGBOAT KEY YOUTH CENTER, INC.Longboat Key, FL · Inactive | Longboat Key, FL | Nonprofit | Dec 23, 1974 | Inactive |
| MANASOTA LEAGUE OF CITIES, INC.Longboat Key, FL · Active | Longboat Key, FL | Nonprofit | Mar 11, 1975 | Active |
| 5601 GULF OF MEXICO DRIVE APTS., A CONDOMINIUM, INC.Longboat Key, FL · Active | Longboat Key, FL | Nonprofit | Jul 3, 1975 | Active |
| TIFFANY PLAZA CONDOMINIUM ASSOCIATION, INC.Longboat Key, FL · Active | Longboat Key, FL | Nonprofit | Aug 27, 1975 | Active |
| COVERT III ASSOCIATION, INC.Longboat Key, FL · Active | Longboat Key, FL | Nonprofit | Aug 6, 1976 | Active |
| THE DIPLOMAT ASSOCIATION, INC.Longboat Key, FL · Active | Longboat Key, FL | Nonprofit | Aug 24, 1976 | Active |
| CONDOMINIUM OWNERS ASSOCIATION OF SAND CAY, INC.Longboat Key, FL · Active | Longboat Key, FL | Nonprofit | Oct 11, 1976 | Active |
| SANDS POINT CONDOMINIUM ASSOCIATION OF LONGBOAT KEY, INC.Longboat Key, FL · Active | Longboat Key, FL | Nonprofit | Jan 28, 1977 | Active |
| APOLLO BEACH CIVIC ASSOCIATION, INCORPORATEDLongboat Key, FL · Active | Longboat Key, FL | Nonprofit | Jan 28, 1977 | Active |
| BAY ISLES BAYOU ASSOCIATION, INC.Longboat Key, FL · Active | Longboat Key, FL | Nonprofit | Mar 3, 1977 | Active |
| SEA HORSE BEACH RESORT ASSOCIATION, INC.Longboat Key, FL · Active | Longboat Key, FL | Nonprofit | Mar 22, 1977 | Active |