Organizations
Largest first
By revenue on the last return. Organizations that file Form 990-N report no figures and come last.
| Organization | Return | Revenue |
|---|---|---|
| Water Environment Association of TexasAustin | Form 990 | $1,564,543FY2024 |
| Arboretum San AntonioSan Antonio | Form 990 | $1,516,088FY2024 |
| Turtle Creek ConservancyDallas | Form 990 | $1,504,277FY2024 |
| Rgisc IncLaredo | Form 990 | $1,493,091FY2024 |
| Texas Recreation & Park SocietyJonestown | Form 990 | $1,430,109FY2024 |
| Evolve HoustonHouston | Form 990 | $1,429,724FY2024 |
| Bayou Bend Gardens EndowmentHouston | Form 990 | $1,402,912FY2025 |
| Texas Water TradeAustin | Form 990 | $1,382,876FY2025 |
| Dallas Ecological FoundationDallas | Form 990 | $1,345,047FY2025 |
| Bexar Land Trust IncSan Antonio | Form 990 | $1,257,699FY2024 |
| National Network of Abortion FundsMcAllen | Form 990 | $1,230,580FY2025 |
| Greenspace DallasIrving | Form 990 | $1,230,055FY2025 |
| South Texas Botanical Gardens & Nature CenterCorpus Christi | Form 990 | $1,214,752FY2024 |
| Texas Floodplain ManagementassociationLeander | Form 990 | $1,206,007FY2025 |
| Save Our Springs Alliance IncAustin | Form 990 | $1,170,900FY2024 |
| South Central Partnership for Energy Efficiency As a ResourceBuda | Form 990 | $1,141,809FY2025 |
| Metropolitan Partnership for EnergySan Antonio | Form 990 | $1,126,925FY2024 |
| Houston Wilderness IncHouston | Form 990 | $1,121,369FY2025 |
| Texas Rice Industry Coalition for the EnvironmentPierce | Form 990 | $1,120,740FY2025 |
| A Rocha USA IncAustin | Form 990 | $1,117,708FY2025 |
| Keep Texas Beautiful IncAustin | Form 990 | $1,116,760FY2025 |
| Carbon Tracker Initiative IncAustin | Form 990 | $1,109,108FY2024 |
| The Matagorda Bay FoundationBrazoria | Form 990 | $1,105,228FY2024 |
| East Texas Arboretum and BotanicalAthens | Form 990 | $1,078,934FY2024 |
| Turtle Creek Association IncDallas | Form 990 | $1,075,853FY2025 |
| The Nelac InstituteWeatherford | Form 990 | $1,036,891FY2025 |
| Travis Audubon Society IncAustin | Form 990 | $1,021,750FY2025 |
| Commission ShiftLaredo | Form 990 | $986,178FY2024 |
| Bayou Land ConservancySpring | Form 990 | $974,909FY2025 |
| Amarillo Botanical GardensAmarillo | Form 990 | $967,874FY2025 |
| Native Plant Society of TexasFredericksburg | Form 990 | $961,055FY2024 |
| New Economy of Working HoustonHouston | Form 990 | $955,379FY2024 |
| The Nature Discovery Center IncBellaire | Form 990 | $942,410FY2025 |
| Westcave Outdoor Discovery CenterRound Mountain | Form 990 | $931,323FY2025 |
| Equitable Origin IncAustin | Form 990 | $927,258FY2025 |
| Partners for Education Agriculture and SustainabilityAustin | Form 990 | $906,012FY2025 |
| Zilker Botanical Garden Conservancy Non-Profit CorporationAustin | Form 990 | $900,019FY2025 |
| River Oaks Garden ClubHouston | Form 990 | $899,674FY2025 |
| Fort Worth Garden Club IncFort Worth | Form 990 | $892,222FY2026 |
| Texas Environmental Justice Advocacy ServicesHouston | Form 990 | $877,638FY2025 |
| Produced Water Society IncAustin | Form 990 | $858,313FY2025 |
| Garden Club of HoustonHouston | Form 990 | $839,305FY2025 |
| American Energy InstituteAustin | Form 990 | $834,662FY2024 |
| Coalition for Environment Equity and ResilienceHouston | Form 990 | $807,750FY2024 |
| Womens Council of the Dallas Arboretum & Botanical GardenDallas | Form 990 | $796,568FY2025 |
| Austin Youth River WatchAustin | Form 990 | $772,549FY2025 |
| Streams & Valleys IncFort Worth | Form 990 | $768,607FY2025 |
| Designer Diva Resale IncHouston | Form 990 | $744,007FY2024 |
| Galen FoundationSan Antonio | Form 990 | $741,566FY2025 |
| Sibley Environmental Learning Center Foundation IncMidland | Form 990 | $738,274FY2024 |
51 to 100 of 1,214