| MANATEE COTTAGE, LLCMarathon, FL · Inactive | Marathon, FL | LLC | Apr 18, 2022 | Inactive |
| TOP NOTCH SPORTFISHING INC.Marathon, FL · Active | Marathon, FL | Corporation | Dec 17, 2020 | Active |
| SALON BLANCO, INC.Marathon, FL · Active | Marathon, FL | Corporation | Jul 18, 2007 | Active |
| BOUGAINVILLEA VILLAS CONDOMINIUM ASSOCIATION, INC.Marathon, FL · Active | Marathon, FL | Nonprofit | Oct 4, 2005 | Active |
| INTEGRAL RADIOLOGICAL SERVICES, INC.Port Charlotte, FL · Inactive | Port Charlotte, FL | Corporation | Aug 14, 2009 | Inactive |
| OCEAN FRONT APTS INCKey Colony Bch, FL · Active | Key Colony Bch, FL | Nonprofit | Sep 17, 1963 | Active |
| ISLAND CLUB CONDOMINIUM, INC.Marathon, FL · Active | Marathon, FL | Nonprofit | Oct 25, 1973 | Active |
| ROYAL PLUM CONDOMINIUM, INC.Marathon, FL · Active | Marathon, FL | Nonprofit | Jan 7, 1974 | Active |
| THE LEMON COVE CONDOMINIUM, INC.Marathon, FL · Active | Marathon, FL | Nonprofit | Feb 18, 1974 | Active |
| THE SPANISH GALLEON, A CONDOMINIUM, INC.Marathon, FL · Active | Marathon, FL | Nonprofit | Dec 17, 1974 | Active |
| SEA ISLE CONDOMINIUM ASSOCIATION, INC.Key Colony Beach, FL · Active | Key Colony Beach, FL | Nonprofit | Jul 23, 1975 | Active |
| INDIES ISLAND CONDOMINIUM, INC.Duck Key, FL · Active | Duck Key, FL | Nonprofit | Sep 9, 1976 | Active |
| THE EGRET CONDOMINIUM ASSOCIATION, INC.Key Colony Beach, FL · Active | Key Colony Beach, FL | Nonprofit | May 11, 1978 | Active |
| STIRRUP KEY CONDOMINIUM ASSOCIATION, INC.Marathon, FL · Active | Marathon, FL | Nonprofit | Jul 22, 1981 | Active |
| SEAPOINTE CONDOMINIUM ASSOCIATION, INC.Key Colony Beach, FL · Active | Key Colony Beach, FL | Nonprofit | Jan 21, 1982 | Active |
| DODESTER INVESTMENTS LLCMarathon, FL · Inactive | Marathon, FL | LLC | Aug 8, 2014 | Inactive |
| CRUZ 4B FAMILY, LLCMarathon, FL · Inactive | Marathon, FL | LLC | Sep 30, 2015 | Inactive |
| PIRATES OF LONG KEY, LLCLocation not reported, FL · Active | Location not reported, FL | LLC | Aug 16, 2017 | Active |
| NAMA 4 BOYS, LLCMarathon, FL · Inactive | Marathon, FL | LLC | Aug 17, 2020 | Inactive |
| THE RESIDENCES AT OCEAN DRIVE CONDOMINIUM ASSOCIATION, INCKey Colony Beach, FL · Active | Key Colony Beach, FL | Nonprofit | Feb 2, 2005 | Active |
| SUNSET HAMMOCK CONDOMINIUM ASSOCIATION, INC.Tavernier, FL · Active | Tavernier, FL | Nonprofit | Sep 7, 1984 | Active |
| KNIGHT'S KEY VILLAGE CONDOMINIUM ASSOCIATION, INC.Marathon, FL · Inactive | Marathon, FL | Nonprofit | May 23, 1985 | Inactive |
| SOMBRERO RESORT CONDOMINIUM ASSOCIATION, INC.Marathon, FL · Active | Marathon, FL | Nonprofit | Apr 24, 1987 | Active |
| COCO PLUM TERRACES CONDOMINIUM ASSOCIATION, INC.Marathon, FL · Active | Marathon, FL | Nonprofit | Oct 26, 1990 | Active |
| GALLERIA CONDOS, INC.Key West, FL · Inactive | Key West, FL | Corporation | Jan 24, 2007 | Inactive |
| REDWING DIVERS, INC.Big Pine Key, FL · Inactive | Big Pine Key, FL | Corporation | Dec 5, 2008 | Inactive |
| TERRALAYA OF AMERICA, INC.Key Colony Beach, FL · Inactive | Key Colony Beach, FL | Corporation | Mar 14, 2011 | Inactive |
| CORAL MARINE CONSTRUCTION OF THE KEYS, INC.Marathon, FL · Inactive | Marathon, FL | Corporation | Nov 17, 2014 | Inactive |
| HIGH TIDE CORPORATION OF THE FL KEYSMarathon, FL · Inactive | Marathon, FL | Corporation | Nov 10, 2015 | Inactive |
| CELESTE OF THE KEYS, INC.Marathon, FL · Inactive | Marathon, FL | Corporation | Nov 10, 2015 | Inactive |
| JESUSITO, INC.Marathon, FL · Inactive | Marathon, FL | Corporation | Nov 10, 2015 | Inactive |