| KEYS CHOW INCBig Torch Key, FL · Inactive | Big Torch Key, FL | Nonprofit | Nov 25, 2019 | Inactive |
| FLORIDA KEYS CANAL WATER QUALITY MANAGEMENT ASSOCIATION, INC.Summerland Key, FL · Inactive | Summerland Key, FL | Nonprofit | Apr 6, 1987 | Inactive |
| JADELS FINEST INC.Sugarloaf Key, FL · Inactive | Sugarloaf Key, FL | Nonprofit | Mar 25, 2020 | Inactive |
| CORNERSTONE RESOURCE ALLIANCE INC.Little Torch Key, FL · Active | Little Torch Key, FL | Nonprofit | May 19, 2020 | Active |
| VALIANT TRADITIONS, INC.Sugarloaf Key, FL · Inactive | Sugarloaf Key, FL | Nonprofit | Nov 4, 2020 | Inactive |
| SOUTHERNMOST SOCCER CLUB INCLocation not reported, FL · Inactive | Location not reported, FL | Nonprofit | Dec 22, 2020 | Inactive |
| THE BEAN FOUNDATION CORPORATIONRamrod Key, FL · Inactive | Ramrod Key, FL | Nonprofit | Jun 29, 2021 | Inactive |
| MIA'S MINISTRY INC.Summerland Key, FL · Inactive | Summerland Key, FL | Nonprofit | Sep 13, 2021 | Inactive |
| SUGARLOAF SCHOOL PTO, INC.Sugarloaf Key, FL · Active | Sugarloaf Key, FL | Nonprofit | Nov 5, 2021 | Active |
| COEUR ASSEMBLE, INC.Little Torch Key, FL · Inactive | Little Torch Key, FL | Nonprofit | May 3, 2022 | Inactive |
| BUZZA FOUNDATION INCCudjoe Key, FL · Active | Cudjoe Key, FL | Nonprofit | Jun 9, 2022 | Active |
| PROTECT KEY WEST AND THE FLORIDA KEYS, INC.Summerland Key, FL · Active | Summerland Key, FL | Nonprofit | Oct 7, 1987 | Active |
| 22526 LA FITTE HOMEOWNERS ASSOCIATION, INC.Cudjoe Key, FL · Active | Cudjoe Key, FL | Nonprofit | Mar 20, 2023 | Active |
| RUB AND TUG INVITATIONAL CORPSugarloaf Key, FL · Active | Sugarloaf Key, FL | Nonprofit | Jun 5, 2023 | Active |
| THE SANDBAR PROJECT, INC.Little Torch Key, FL · Inactive | Little Torch Key, FL | Nonprofit | Aug 24, 2023 | Inactive |
| FEEDING AMERICAS FUTURE, INCORPORATEDLittle Torch Key, FL · Active | Little Torch Key, FL | Nonprofit | Sep 26, 2023 | Active |
| PIRATES SAVING PARADISE, INCLittle Torch Key, FL · Active | Little Torch Key, FL | Nonprofit | Nov 9, 2023 | Active |
| KEY WEST REVIEW, INC.Summerland Key, FL · Inactive | Summerland Key, FL | Nonprofit | Dec 18, 1987 | Inactive |
| SURTHRIVOR SAILING INCSugarloaf Key, FL · Inactive | Sugarloaf Key, FL | Nonprofit | Jul 1, 2024 | Inactive |
| CUDJOE SHORES HOMEOWNERS' ASSOCIATION, INC.Cudjoe Key, FL · Active | Cudjoe Key, FL | Nonprofit | Sep 4, 2024 | Active |
| FLORIDA KEYS ACADEMY OF SPORTS AND EDUCATION INCORPORATEDSugarloaf Key, FL · Active | Sugarloaf Key, FL | Nonprofit | Oct 14, 2024 | Active |
| CAYO HUESO CUBS BASEBALL CORPORATIONSugarloaf Key, FL · Inactive | Sugarloaf Key, FL | Nonprofit | Oct 23, 2024 | Inactive |
| PETS & VETS RESCUE AND TRANSPORT INC.Summerland Key, FL · Active | Summerland Key, FL | Nonprofit | Nov 12, 2024 | Active |
| TAKE THE HELM KIDS, INC.Sugarloaf Key, FL · Inactive | Sugarloaf Key, FL | Nonprofit | Sep 2, 2025 | Inactive |
| FLORIDA WILD LIFE CONSERVATION REHABILITATION SERVICES, INCSummerland Key, FL · Active | Summerland Key, FL | Nonprofit | Dec 12, 2025 | Active |
| ABBY'S ATTIC, INC.Ramrod Key, FL · Active | Ramrod Key, FL | Nonprofit | Feb 2, 2026 | Active |
| CARE 4 ALL FL KEYS INCLittle Torch, FL · Active | Little Torch, FL | Nonprofit | Apr 1, 2026 | Active |
| THE ANGLICO MUSEUM, INCLocation not reported, FL · Active | Location not reported, FL | Nonprofit | Jun 29, 2026 | Active |
| LOWER KEYS GOLF ASSOCIATION, INC.Sugarloaf Key, FL · Active | Sugarloaf Key, FL | Nonprofit | May 16, 1988 | Active |
| FLORIDA KEYS MARINE SANCTUARY, INC.Ramrod Key, FL · Inactive | Ramrod Key, FL | Nonprofit | May 16, 1988 | Inactive |
| FLORIDA KEYS FISHING TOURNAMENTS, INC.Summerland Key, FL · Inactive | Summerland Key, FL | Nonprofit | Mar 29, 1990 | Inactive |
| CUDJOE KEY HOMEOWNERS ASSOCIATION, INC.Summerland Key, FL · Inactive | Summerland Key, FL | Nonprofit | Apr 11, 1990 | Inactive |
| CAHILL PINES AND PALMS PROPERTY OWNERS ASSOCIATION, INC. 1991Summerland Key, FL · Inactive | Summerland Key, FL | Nonprofit | Apr 5, 1991 | Inactive |
| CLUB 800, INC.Cudjoe Key, FL · Inactive | Cudjoe Key, FL | Nonprofit | Aug 30, 1991 | Inactive |
| SUGARLOAF BAPTIST CHURCH, INC.Sugarloaf Key, FL · Active | Sugarloaf Key, FL | Nonprofit | Aug 12, 1992 | Active |
| MONROE COUNTY ENVIRONMENTAL EDUCATION ADVISORY COUNCIL, INC.Cudjoe Key, FL · Inactive | Cudjoe Key, FL | Nonprofit | Aug 17, 1992 | Inactive |
| KEYS EVANGELISTIC MINISTRIES, INC.Summerland Key, FL · Active | Summerland Key, FL | Nonprofit | Dec 6, 1993 | Active |
| WHITE HERON ESTATES CONDOMINIUM ASSOCIATION, INC.Sugarloaf Key, FL · Inactive | Sugarloaf Key, FL | Nonprofit | Mar 29, 1994 | Inactive |
| INDIAN MOUND ESTATES PROPERTY OWNERS ASSOCIATION, INC.Sugarloaf, FL · Active | Sugarloaf, FL | Nonprofit | Nov 10, 1994 | Active |
| FELINE MANOR, INC.Cudjoe Key, FL · Inactive | Cudjoe Key, FL | Nonprofit | May 8, 1995 | Inactive |
| MONROE COUNTY IMPROVED SUBDIVISION RESIDENT HOMEOWNERS ASSOCIATION, INC.Summerland Key, FL · Inactive | Summerland Key, FL | Nonprofit | Sep 22, 1995 | Inactive |
| BLANCHE BERGIN MARINA PARK, INC.Summerland Key, FL · Active | Summerland Key, FL | Nonprofit | Oct 6, 1995 | Active |
| SUMMERLAND COVE CIVIC ASSOCIATION, INC.Summerland Key, FL · Active | Summerland Key, FL | Nonprofit | Jan 8, 1996 | Active |
| LUCKY'S LANDING MOBILE HOME OWNERS ASSN., INC.Summerland Key, FL · Inactive | Summerland Key, FL | Nonprofit | Apr 22, 1996 | Inactive |
| MONROE COUNTY CITIZENS FOR BETTER GOVERNMENT, INC.Cudjoe Key, FL · Inactive | Cudjoe Key, FL | Nonprofit | May 16, 1996 | Inactive |
| POST NO. 8683 VETERANS OF FOREIGN WARS OF THE UNITED STATES, INC.Summerland Key, FL · Inactive | Summerland Key, FL | Nonprofit | Oct 14, 1996 | Inactive |
| HELP THE RAINFOREST, INC.Rockland Key, FL · Inactive | Rockland Key, FL | Nonprofit | Apr 2, 1997 | Inactive |
| SUMMERLAND BEACH NEIGHBORHOOD ASSOCIATION, INC.Summerland Key, FL · Inactive | Summerland Key, FL | Nonprofit | Jun 23, 1997 | Inactive |
| NAVY LEAGUE OF THE UNITED STATES, KEY WEST COUNCIL INC.Summerland Key, FL · Active | Summerland Key, FL | Nonprofit | Feb 9, 1998 | Active |
| OCEAN RESEARCH AND EDUCATIONAL FOUNDATION, INC.Ramrod Key, FL · Active | Ramrod Key, FL | Nonprofit | Mar 16, 1998 | Active |