| American Orchid Society Inc Botanical Museum of Harvard UnivCoral Gables | Form 990 | $1,592,002FY2025 |
| Florida Water Resources Conference IncMerritt Island | Form 990 | $1,557,230FY2025 |
| Southeast Climate & Energy Network IncSunrise | Form 990 | $1,470,242FY2024 |
| Healthy Aquatics Marine Institute of Florida IncWest Palm Beach | Form 990 | $1,423,548FY2024 |
| Trout Lake Nature Center IncEustis | Form 990 | $1,403,194FY2025 |
| Captains for Clean Water IncFort Myers | Form 990 | $1,398,255FY2025 |
| Healthy Reefs for Healthy People IncFort Lauderdale | Form 990 | $1,383,840FY2024 |
| Wildlands Conservation IncTampa | Form 990 | $1,334,695FY2025 |
| Miami Beach Garden Conservancy IncMiami Beach | Form 990 | $1,324,351FY2025 |
| Jupiter Island Garden Club IncHobe Sound | Form 990 | $1,290,405FY2025 |
| Guardians of Martin County IncHobe Sound | Form 990 | $1,282,944FY2025 |
| Genesis Reef Project IncSarasota | Form 990 | $1,273,455FY2024 |
| St Johns Riverkeeper IncJacksonville | Form 990 | $1,214,548FY2024 |
| Blue Lab Preservation Society IncMiami Beach | Form 990 | $1,195,080FY2024 |
| Cca Foundation IncCaptiva | Form 990 | $1,104,473FY2024 |
| Florida Keys Land & Sea Trust IncMarathon | Form 990 | $1,092,773FY2025 |
| Florida Conservation Group IncNokomis | Form 990 | $1,072,776FY2024 |
| Florida Water Environment Association IncOrlando | Form 990 | $1,007,383FY2025 |
| Florida Shore and Beach Preservation Association IncTallahassee | Form 990 | $1,006,163FY2024 |
| Environmental Protection in the Caribbean IncorporatedGreen Cove Springs | Form 990 | $1,002,628FY2025 |
| Florida Chapter of the Intl Society of Arboriculture IncClearwater | Form 990 | $992,654FY2025 |
| I Care CorporationIslamorada | Form 990 | $958,432FY2025 |
| Keep Brevard Beautiful IncCocoa | Form 990 | $950,681FY2025 |
| Friends of Macarthur Beach State Park IncNorth Palm Beach | Form 990 | $921,277FY2025 |
| North Florida Botanical Society IncGainesville | Form 990 | $909,150FY2025 |
| Florida Green Building Coalition IncSaint Petersburg | Form 990 | $893,644FY2025 |
| Institute of Sustainable ConnectionsCoral Gables | Form 990 | $849,718FY2024 |
| Keep Tampa Bay Beautiful IncTampa | Form 990 | $846,669FY2025 |
| Keep Pinellas Beautiful IncSaint Petersburg | Form 990 | $835,270FY2024 |
| Friends of the Environment IncDelray Beach | Form 990 | $817,539FY2025 |
| Urban Oasis Project IncMiami | Form 990 | $803,715FY2024 |
| Calusa Land Trust and Nature Preserve of Pine Island IncBokeelia | Form 990 | $782,827FY2025 |
| WK Preservation Group IncTarpon Springs | Form 990 | $765,009FY2024 |
| Waste to Charity IncVenice | Form 990 | $754,647FY2025 |
| Garden Club of Palm BeachPalm Beach | Form 990 | $743,727FY2025 |
| Great Outdoors FundVero Beach | Form 990 | $740,212FY2024 |
| Florida Botanical Gardens Foundation IncLargo | Form 990 | $729,397FY2025 |
| Friends of Sandoway House Nature Center IncDelray Beach | Form 990 | $721,905FY2025 |
| Florida Federation of Garden Clubs IncWinter Park | Form 990 | $713,755FY2025 |
| Hobe Sound Nature Center IncHobe Sound | Form 990 | $687,483FY2025 |
| Ocean Reef Conservation Association IncKey Largo | Form 990 | $680,258FY2024 |
| Friends of Guana Tolomato Matanzas National Estuarine Research ReservPonte Vedra | Form 990 | $655,885FY2024 |
| La Ruta Maya Conservation FoundationMiami | Form 990 | $641,839FY2024 |
| Barrier Island Parks Society IncBoca Grande | Form 990 | $625,567FY2024 |
| Southeastern States Air Resource Managers IncTallahassee | Form 990 | $593,792FY2025 |
| Heal the Planet Together IncFort Lauderdale | Form 990 | $587,265FY2025 |
| Apalachicola Bay and River Keeper IncApalachicola | Form 990 | $580,410FY2024 |
| More Action for Regeneration IncSaint Petersburg | Form 990 | $578,503FY2025 |
| Tampa Federation of Garden Club Circles IncTampa | Form 990 | $558,138FY2025 |
| Howard T Odum Florida Springs Institute IncHigh Springs | Form 990 | $556,578FY2024 |