Organizations
Largest first
By revenue on the last return. Organizations that file Form 990-N report no figures and come last.
| Organization | Return | Revenue |
|---|---|---|
| Ducks Unlimited IncMemphis | Form 990 | $380,340,506FY2025 |
| Ducks Unlimited IncMemphis | Group return | $65,801,593FY2025 |
| Cumberland River Compact IncNashville | Form 990 | $9,590,444FY2025 |
| Southern Conservation CorpMcMinnville | Form 990 | $8,008,393FY2025 |
| Tennessee Wildlife Federation IncorporatedNashville | Form 990 | $6,588,626FY2025 |
| Southern Alliance for Clean EnergyKnoxville | Form 990 | $5,412,002FY2025 |
| Land Trust for Tennessee IncNashville | Form 990 | $5,042,372FY2025 |
| Union Sportsmens AllianceSpring Hill | Form 990 | $4,940,742FY2024 |
| Tennessee State Parks ConservancyNashville | Form 990 | $4,802,658FY2025 |
| Memphis Botanic Garden Foundation IncMemphis | Form 990 | $4,766,975FY2025 |
| Saving Nature IncKnoxville | Form 990 | $4,757,662FY2025 |
| Friends of Radnor LakeNashville | Form 990 | $4,600,023FY2025 |
| Clinch-Powell Resource Conservation and Development AreRutledge | Form 990 | $4,436,456FY2025 |
| Tennessee River Gorge Trust IncChattanooga | Form 990 | $3,828,483FY2024 |
| Great Smoky Mountain InstituteTownsend | Form 990 | $3,303,000FY2025 |
| Wolf River Conservancy IncMemphis | Form 990 | $3,161,357FY2024 |
| Ijams Nature Center IncKnoxville | Form 990 | $2,595,901FY2024 |
| Appalachian-Northeast Tenn Resource Conservation and Development CouncJohnson City | Form 990 | $2,517,186FY2025 |
| Reflection Riding Arboretum and Nature CenterChattanooga | Form 990 | $2,500,182FY2024 |
| East Tennessee Clean Fuels CoalitionKnoxville | Form 990 | $2,367,940FY2025 |
| Harpeth ConservancyBrentwood | Form 990 | $1,923,989FY2025 |
| American Mathematical Association of Two Year Colleges IncMemphis | Form 990 | $1,484,484FY2024 |
| Tennessee Environmental CouncilNashville | Form 990 | $1,342,357FY2024 |
| Foothills Land ConservancyRockford | Form 990 | $1,295,691FY2025 |
| Big River Park ConservancyMemphis | Form 990 | $1,185,987FY2024 |
| GreenspacesChattanooga | Form 990 | $1,181,500FY2024 |
| Franklin S Charge IncFranklin | Form 990 | $1,062,976FY2025 |
| Conservation Fisheries IncKnoxville | Form 990 | $1,053,259FY2025 |
| Knoxville Botanical Gardens and ArboretumKnoxville | Form 990 | $1,038,030FY2024 |
| Gulf and Caribbean Fisheries Institute IncPiney Flats | Form 990 | $874,150FY2025 |
| Lookout Mountain ConservancyChattanooga | Form 990 | $859,030FY2024 |
| Protect Our AquiferMemphis | Form 990 | $858,907FY2025 |
| Statewide Organizing for Community Empowerment Resource ProjectKnoxville | Form 990 | $844,141FY2024 |
| Friends of Shelby Park IncNashville | Form 990 | $801,405FY2025 |
| Southeastern Cave Conservancy IncSignal Mountain | Form 990 | $717,482FY2026 |
| Urban Green LabNashville | Form 990 | $696,565FY2025 |
| Friends of Mill Ridge ParkAntioch | Form 990 | $672,904FY2024 |
| Young Gifted & GreenMemphis | Form 990 | $606,981FY2025 |
| Metro Nashville Parks FoundationNashville | Form 990 | $595,781FY2025 |
| Trees KnoxvilleKnoxville | Form 990 | $533,475FY2025 |
| Rock the Ocean FoundationNashville | Form 990 | $507,888FY2024 |
| One Million WellsMemphis | Form 990 | $477,412FY2024 |
| Keep the Tennessee River BeautifulKnoxville | Form 990 | $453,131FY2024 |
| WaterwaysChattanooga | Form 990 | $446,192FY2024 |
| Keep Knoxville Beautiful IncKnoxville | Form 990 | $412,096FY2025 |
| Chattanooga Audubon SocietyChattanooga | Form 990 | $384,523FY2025 |
| Tennessee Advanced Energy Business CouncilKnoxville | Form 990 | $378,450FY2024 |
| Discover Life in America IncGatlinburg | Form 990 | $360,833FY2025 |
| City GrazingBristol | Form 990 | $353,251FY2024 |
| Tennessee Forestry Foundation IncNashville | Form 990 | $326,330FY2024 |
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