Organizations
Largest first
By revenue on the last return. Organizations that file Form 990-N report no figures and come last.
| Organization | Return | Revenue |
|---|---|---|
| Indiana Native Plant Society IncIndianapolis | Form 990 | $231,705FY2025 |
| Keep Evansville Beautiful IncEvansville | Form 990 | $231,597FY2025 |
| Warrick Parks and Trails Foundation IncNewburgh | Form 990 | $218,465FY2025 |
| People for Urban ProgressIndianapolis | Form 990 | $215,173FY2024 |
| Lake Tippecanoe Property Owners IncLeesburg | Form 990 | $213,152FY2025 |
| Gnaw Bone Camp Nature Preserve IncNashville | Form 990 | $208,430FY2025 |
| South Adams Trails IncBerne | Form 990 | $206,175FY2024 |
| Overland Expo FoundationIndianapolis | Form 990 | $202,559FY2024 |
| The Parks Foundation of Hendricks County IncDanville | Form 990 | $194,428FY2025 |
| Rethink IncTerre Haute | Form 990 | $192,359FY2025 |
| Wabash River Development &Beautification IncTerre Haute | Form 990 | $187,213FY2024 |
| Friends of the White River IncIndianapolis | Form 990-EZ | $176,679FY2025 |
| Indiana Land Protection AllianceIndianapolis | Form 990-EZ | $176,095FY2024 |
| Carbon Neutral Indiana IncIndianapolis | Form 990-EZ | $160,571FY2025 |
| American Daffodil Society IncUnionville | Form 990 | $159,863FY2024 |
| Preservation of the Res IncMishawaka | Form 990-EZ | $157,155FY2025 |
| Izaak Walton League of America IncGriffith | Form 990-EZ | $150,530FY2024 |
| Webster Lake Conservation Association IncNorth Webster | Form 990-EZ | $146,219FY2025 |
| Heartwood IncorporatedPaoli | Form 990-EZ | $144,134FY2025 |
| Indianapolis Garden ClubIndianapolis | Form 990 | $143,122FY2025 |
| Friends of Lake Monroe IncBloomington | Form 990-EZ | $138,411FY2025 |
| Center for Sustainable Living IncBloomington | Form 990 | $137,853FY2024 |
| Lake Monroe Water Fund IncBloomington | Form 990-EZ | $137,502FY2024 |
| Greenways Foundation IncIndianapolis | Form 990-EZ | $128,709FY2024 |
| Downtown Danville Partnership IncDanville | Form 990-EZ | $120,636FY2025 |
| Farmland Conservation Club IncFarmland | Form 990 | $113,542FY2025 |
| Lake Maxinkuckee Association IncCulver | Form 990-EZ | $113,410FY2025 |
| Brotherhood Designs Foundation CorporationMcCordsville | Form 990-EZ | $111,105FY2025 |
| Trees IncTerre Haute | Form 990-EZ | $108,649FY2025 |
| Anabaptist Climate Collaborative IncGoshen | Form 990-EZ | $104,099FY2025 |
| Sustainable Connexions International IncIndianapolis | Form 990-EZ | $103,728FY2025 |
| Wabash River Defenders IncNorth Manchester | Form 990-EZ | $99,609FY2025 |
| Southwestern Indiana Master Gardener Association IncInglefield | Form 990-EZ | $95,567FY2025 |
| Lafayette Tree Fund IncLafayette | Form 990-EZ | $93,976FY2025 |
| Amos W Butler Audubon SocietyIndianapolis | Form 990 | $92,589FY2025 |
| Earth Day Indiana IncIndianapolis | Form 990-EZ | $90,880FY2025 |
| Indiana Forestry and Woodland Owners Association IncWest Lafayette | Form 990-EZ | $88,976FY2025 |
| Izaak Walton League of America IncHuntertown | Form 990-EZ | $88,374FY2025 |
| Morse Waterways Association IncCicero | Form 990-EZ | $83,590FY2025 |
| Community Sustainability ProjectGoshen | Form 990-EZ | $76,652FY2025 |
| Botanical Society of South Bend LtdSouth Bend | Form 990-EZ | $75,956FY2024 |
| Walnut CouncilWest Lafayette | Form 990 | $75,772FY2024 |
| Oxbow of Indiana IncLawrenceburg | Form 990 | $72,601FY2024 |
| Gary Advocates for Responsible Development IncGary | Form 990-EZ | $71,947FY2025 |
| Indiana Karst ConservancyIndianapolis | Form 990 | $71,877FY2025 |
| Steuben County Lakes Council IncAngola | Form 990-EZ | $71,251FY2025 |
| Prairie Winds Nature Farm IncLakeville | Form 990-EZ | $71,192FY2025 |
| Syracuse Lake Association IncSyracuse | Form 990-EZ | $68,213FY2025 |
| Friends of Pumpkinvine Nature Trail IncElkhart | Form 990-EZ | $67,199FY2025 |
| Noblesville Bridge of Flowers IncNoblesville | Form 990-EZ | $66,733FY2024 |
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