Organizations
Largest first
By revenue on the last return. Organizations that file Form 990-N report no figures and come last.
| Organization | Return | Revenue |
|---|---|---|
| Friends of Robinson Gardens IncBeverly Hills | Form 990 | $759,856FY2025 |
| California Sustainability Group IncSan Clemente | Form 990 | $757,657FY2024 |
| Accounting for Sustainability Foundation Us IncEl Segundo | Form 990 | $748,400FY2025 |
| Sierra WatchNevada City | Form 990 | $746,588FY2025 |
| Buckelew Community Housing Development Organization IncSan Rafael | Form 990 | $746,060FY2025 |
| Ventana Wilderness Alliance a Non Profit California CorporationMonterey | Form 990 | $743,171FY2024 |
| Santa Cruz Hub for Sustainable LivingSanta Cruz | Form 990 | $742,317FY2025 |
| Cactus & Succulent Society of America IncPasadena | Form 990 | $739,689FY2025 |
| Environmental Protection Information Center IncArcata | Form 990 | $737,556FY2025 |
| Reap Climate Center IncAlameda | Form 990 | $736,504FY2025 |
| Headwaters Basin ProjectNevada City | Form 990 | $726,785FY2024 |
| Environment California Research & Policy Center IncLos Angeles | Form 990 | $713,419FY2025 |
| Jacoby Creek Land TrustBayside | Form 990 | $711,397FY2025 |
| Mothers of the Amazon IncTopanga | Form 990 | $711,205FY2024 |
| Bolsa Chica ConservancyHuntington Beach | Form 990 | $704,203FY2025 |
| Frontline CatalystsOakland | Form 990 | $703,506FY2026 |
| Kula Project IncCosta Mesa | Form 990 | $702,683FY2025 |
| Fresno Stewardship FoundationFresno | Form 990 | $695,684FY2025 |
| Walter Munk Foundation for the OceansLa Jolla | Form 990 | $693,038FY2024 |
| Jug Handle Creek Farm and Nature CenterBerkeley | Form 990 | $690,979FY2025 |
| Southern Sierra Research StationWeldon | Form 990 | $687,819FY2025 |
| Marin Conservation LeagueSan Rafael | Form 990 | $686,180FY2025 |
| Paddle for PeaceSan Diego | Form 990 | $682,871FY2025 |
| California Native Garden FoundationSan Jose | Form 990 | $666,559FY2023 |
| Bright Saver IncOakland | Form 990 | $656,493FY2025 |
| Napa GreenNapa | Form 990 | $655,210FY2025 |
| Coastal Ranches ConservancyGaviota | Form 990 | $653,410FY2025 |
| Greenaction for Health and Environmental JusticeSan Francisco | Form 990 | $652,933FY2025 |
| Sierra Watershed Education PartnershipsTahoe City | Form 990 | $651,455FY2025 |
| Building Resources of San Francisco IncOakland | Form 990 | $651,147FY2024 |
| Mltpa FoundationMammoth Lakes | Form 990 | $647,603FY2025 |
| Sustainable Technology Engineering Programs FoundationHuntington Beach | Form 990 | $642,511FY2024 |
| Code ReddMill Valley | Form 990 | $641,636FY2023 |
| Downtown Hayward Improvement AssociationHayward | Form 990 | $638,671FY2025 |
| Mountain Rim Fire Safe Council IncRunning Springs | Form 990 | $637,678FY2024 |
| Coastal Watershed CouncilSanta Cruz | Form 990 | $633,707FY2025 |
| 40 Acre Conservation LeagueSacramento | Form 990 | $630,853FY2024 |
| Save the Whales IncSalinas | Form 990 | $628,319FY2024 |
| Savenature OrgSan Francisco | Form 990 | $621,078FY2024 |
| Container Recycling InstituteCulver City | Form 990 | $620,679FY2024 |
| Calflora DatabaseBerkeley | Form 990 | $620,610FY2024 |
| Chihiro Z FoundationRancho Santa Fe | Form 990 | $619,984FY2025 |
| Land Empowerment Animals PeopleWeed | Form 990 | $615,699FY2024 |
| Friends of San Luis Obispo Botanical GardenSan Luis Obispo | Form 990 | $615,396FY2024 |
| Laguna Ocean FoundationLaguna Beach | Form 990 | $614,263FY2025 |
| Urban Water Institute IncIrvine | Form 990 | $608,042FY2025 |
| San Bernardino Valley Conservation TrustRedlands | Form 990 | $607,027FY2025 |
| Ocean Awareness Project IncRichmond | Form 990 | $605,435FY2024 |
| Global Coralition IncCalabasas | Form 990 | $604,929FY2024 |
| Magic IncorporatedStanford | Form 990 | $599,817FY2024 |
451 to 500 of 3,142