Environment nonprofits in California

Environment nonprofits in California. Browse 4,392 public nonprofit profiles. Review organization identities, available filing years, and their complete CharitySense profiles.

Location refers to headquarters recorded in public sources, not an organization’s service area. Classification describes its reported category and does not assess its effectiveness.

Nonprofit profiles

  1. Runners for Public Lands

    EIN 833209615 · Headquarters: VENTURA, CA, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990

  2. Rural Association of Mead Valley

    EIN 475629968 · Headquarters: RIVERSIDE, CA, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  3. Rural Communities United

    EIN 330666461 · Headquarters: Aguanga, CA, US · Environment · Latest available filing year: 2012 · Primary form: IRS Form 990-N

  4. Rural Development Foundation Rdf-us

    EIN 853799912 · Headquarters: PANORAMA CITY, CA, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  5. Rural Vacaville Preservation Alliance

    EIN 825514584 · Headquarters: Vacaville, CA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  6. Russian River Community Cares

    EIN 993142296 · Headquarters: Forestville, CA, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  7. Russian River Water Conservation Council C/o Sonoma County Wine Grape Commission

    EIN 274917503 · Headquarters: SANTA ROSA, CA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  8. Russian River Wild Steelhead Society

    EIN 272205769 · Headquarters: Sebastopol, CA, US · Environment · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  9. Russian Riverkeeper

    EIN 680321117 · Headquarters: Healdsburg, CA, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990

  10. Ruthie S Hummingbird Hill Inc

    EIN 333589163 · Headquarters: Jackson, CA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  11. S Bar S Outdoor Education

    EIN 992252673 · Headquarters: Tustin, CA, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  12. Sac Foundation

    EIN 993538836 · Headquarters: SANTA CLARA, CA, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  13. Sacramento Advocates for Rail and Transit

    EIN 994780593 · Headquarters: Sacramento, CA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  14. Sacramento Area Creeks Council

    EIN 263676166 · Headquarters: Sacramento, CA, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990

  15. Sacramento Audubon Society Inc

    EIN 941615830 · Headquarters: Sacramento, CA, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  16. Sacramento Bonsai Club

    EIN 612167039 · Headquarters: STOCKTON, CA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  17. Sacramento Botanical Garden

    EIN 833370738 · Headquarters: Sacramento, CA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  18. Sacramento Floral Design Guild

    EIN 680350147 · Headquarters: Sacramento, CA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  19. Sacramento Orchid Society Inc

    EIN 942312938 · Headquarters: Sa, CA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  20. Sacramento River Forum Inc

    EIN 680461944 · Headquarters: Chico, CA, US · Environment · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  21. Sacramento River Preservation Trust

    EIN 680025584 · Headquarters: Berkeley, CA, US · Environment · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  22. Sacramento River Valley District of California Garden Clubs Inc

    EIN 800764392 · Headquarters: Sloughhouse, CA, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  23. Sacramento River Watershed Program

    EIN 680486576 · Headquarters: CHICO, CA, USA · Environment · Latest available filing year: 2022 · Primary form: IRS Form 990-EZ

  24. Sacramento Safari Club Inc

    EIN 942608049 · Headquarters: Vacaville, CA, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  25. Sacramento Sheriffs Posse

    EIN 680299015 · Headquarters: Grass Valley, CA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  26. Sacramento Tree Foundation

    EIN 942825234 · Headquarters: Sacramento, CA, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  27. Sacramento Watersheds Action Group

    EIN 680394499 · Headquarters: Redding, CA, US · Environment · Latest available filing year: 2013 · Primary form: IRS Form 990-N

  28. Sacred Community Land Trust Inc

    EIN 272174455 · Headquarters: Pinole, CA, US · Environment · Latest available filing year: 2015 · Primary form: IRS Form 990-N

  29. Sacred Earth Refuge

    EIN 680432761 · Headquarters: ALTURAS, CA, US · Environment · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  30. Sacred Lands Native Hands Incorporated

    EIN 825047311 · Headquarters: Elk Grove, CA, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  31. Saddle Horn Fund

    EIN 562381719 · Headquarters: Piedmont, CA, US · Environment · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  32. Saddleback Optimist Club of Laguna Woods 15951

    EIN 900287002 · Headquarters: NEWPORT BEACH, CA, US · Environment · Latest available filing year: 2011 · Primary form: IRS Form 990-N

  33. Safari Club International San Diego Chapter

    EIN 953415118 · Headquarters: SAN DIEGO, CA, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  34. Safe Action for the Environment Inc

    EIN 030614709 · Headquarters: Agua Dulce, CA, US · Environment · Latest available filing year: 2017 · Primary form: IRS Form 990-N

  35. Safe Harbor

    EIN 393838682 · Headquarters: Granite Bay, CA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  36. Safe Water for All Inc

    EIN 651164906 · Headquarters: DAVIS, CA, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  37. Safety Incolor Corp

    EIN 933582434 · Headquarters: Los Angeles, CA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  38. Saint Anthonys Inc

    EIN 922273790 · Headquarters: OAKLAND, CA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  39. Salinas Basin Water Alliance

    EIN 854273094 · Headquarters: SALINAS, CA, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  40. Salinas Valley Water Resources Group

    EIN 471408918 · Headquarters: Soledad, CA, US · Environment · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  41. Saline Preservation Association

    EIN 860855439 · Headquarters: Lancaster, CA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  42. Salmon Forever

    EIN 680394143 · Headquarters: Eureka, CA, US · Environment · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  43. Salmon River Restoration Council

    EIN 680343595 · Headquarters: SAWYERS BAR, CA, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  44. Salt River Watershed Council -a California Public Benefit Corporat

    EIN 262869482 · Headquarters: FERNDALE, CA, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  45. Salton Sea International Bird Festval Inc Salton Sea International Bird Festival Inc

    EIN 330709743 · Headquarters: Brawley, CA, US · Environment · Latest available filing year: 2013 · Primary form: IRS Form 990-N

  46. Salvocean Inc

    EIN 871076608 · Headquarters: San Diego, CA, US · Environment · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  47. San Benito Agricultural Land Trust

    EIN 770338085 · Headquarters: SAN JUAN BAUTISTA, CA, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  48. San Benito County Heritage Foundation

    EIN 270925169 · Headquarters: Tres Pinos, CA, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990

  49. San Bernardino Mountains Land Trust

    EIN 330700417 · Headquarters: LAKE ARROWHEAD, CA, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  50. San Bernardino Valley Audubon Society

    EIN 952593738 · Headquarters: San Bernardino, CA, US · Environment · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  51. San Bernardino Valley Conservation Trust

    EIN 811785903 · Headquarters: REDLANDS, CA, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  52. San Bernardino Valley Municipal Water District Financing Corporati

    EIN 452647413 · Headquarters: San Bernardino, CA, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  53. San Bruno Community Gardens Inc

    EIN 933492093 · Headquarters: San Bruno, CA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  54. San Bruno Mountain Watch

    EIN 943235791 · Headquarters: Brisbane, CA, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  55. San Carlos Community Garden

    EIN 863054488 · Headquarters: LA MESA, CA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  56. San Carlos Garden Club

    EIN 510159422 · Headquarters: Santee, CA, US · Environment · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  57. San Clemente Garden Club

    EIN 651285709 · Headquarters: San Clemente, CA, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  58. San Clemente Watershed Task Force

    EIN 330810584 · Headquarters: San Clemente, CA, US · Environment · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  59. San Diego Airports Action Advocates

    EIN 333587319 · Headquarters: Carlsbad, CA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  60. San Diego Bird Alliance

    EIN 956100273 · Headquarters: San Diego, CA, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  61. San Diego Botanical-garden Foundation Inc

    EIN 952458766 · Headquarters: San Diego, CA, US · Environment · Latest available filing year: 2012 · Primary form: IRS Form 990-N

  62. San Diego Cactus and Succulent Society

    EIN 330374479 · Headquarters: SAN DIEGO, CA, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  63. San Diego Camellia Society

    EIN 953795217 · Headquarters: encinitas, CA, US · Environment · Latest available filing year: 2010 · Primary form: IRS Form 990-N

  64. San Diego Canyonlands Inc

    EIN 262237918 · Headquarters: SAN DIEGO, CA, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  65. San Diego Children and Nature Collaborative

    EIN 452970606 · Headquarters: San Diego, CA, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  66. San Diego Climate Action Network

    EIN 814769461 · Headquarters: Encinitas, CA, US · Environment · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  67. San Diego Coastkeeper

    EIN 330647946 · Headquarters: SAN DIEGO, CA, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  68. San Diego Conservation Resources Network

    EIN 200917236 · Headquarters: San Diego, CA, US · Environment · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  69. San Diego County Dahlia Society

    EIN 332995818 · Headquarters: San Diego, CA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  70. San Diego County Garden Guild

    EIN 810729828 · Headquarters: La Mesa, CA, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  71. San Diego County Orchid Society

    EIN 237122611 · Headquarters: SAN DIEGO, CA, USA · Environment · Latest available filing year: 2021 · Primary form: IRS Form 990-EZ

  72. San Diego Earth Day

    EIN 330494795 · Headquarters: SAN DIEGO, CA, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  73. San Diego Energy District Foundation

    EIN 205236966 · Headquarters: Solana Beach, CA, US · Environment · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  74. San Diego Fishermens Working Group

    EIN 273978857 · Headquarters: LAKESIDE, CA, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  75. San Diego Floral Association

    EIN 956047745 · Headquarters: San Diego, CA, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  76. San Diego Geranium Society

    EIN 330785211 · Headquarters: El Cajon, CA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  77. San Diego Green Building Council

    EIN 202614848 · Headquarters: San Diego, CA, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  78. San Diego Horticultural Society

    EIN 753013676 · Headquarters: ENCINITAS, CA, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  79. San Diego Iris Society

    EIN 300106276 · Headquarters: El Cajon, CA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  80. San Diego Landscape Gardeners Association Inc

    EIN 237208358 · Headquarters: SAN DIEGO, CA, US · Environment · Latest available filing year: 2013 · Primary form: IRS Form 990-N

  81. San Diego Mycological Society

    EIN 330743295 · Headquarters: San Diego, CA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  82. San Diego Oceans Foundation

    EIN 330103012 · Headquarters: San Diego, CA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  83. San Diego Professional Chapter of the Soc of Hispanic Prof Eng Inc

    EIN 330602340 · Headquarters: San Diego, CA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  84. San Diego Regional Sustainability Partnership

    EIN 264393743 · Headquarters: San Diego, CA, US · Environment · Latest available filing year: 2016 · Primary form: IRS Form 990-N

  85. San Diego Renewable Energy Society

    EIN 651288724 · Headquarters: San Diego, CA, US · Environment · Latest available filing year: 2011 · Primary form: IRS Form 990-N

  86. San Diego Rose Society

    EIN 956100556 · Headquarters: SAN DIEGO, CA, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  87. San Diego Stream Team

    EIN 412026620 · Headquarters: Santee, CA, US · Environment · Latest available filing year: 2015 · Primary form: IRS Form 990-N

  88. San Diego Tracking Team

    EIN 331035597 · Headquarters: San Diego, CA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  89. San Diego Urban Sustainability Coalition

    EIN 850958355 · Headquarters: SAN DIEGO, CA, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  90. San Dieguito River Valley Land Conservancy

    EIN 330191772 · Headquarters: SAN DIEGO, CA, USA · Environment · Latest available filing year: 2023 · Primary form: IRS Form 990

  91. San Francisco Bay Bird Observatory

    EIN 942788588 · Headquarters: Milpitas, CA, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  92. San Francisco Bay Center for Marine Education

    EIN 453218434 · Headquarters: Pacifica, CA, US · Environment · Latest available filing year: 2016 · Primary form: IRS Form 990-N

  93. San Francisco Bay Marinas For All

    EIN 463144334 · Headquarters: Sausalito, CA, US · Environment · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  94. San Francisco Bay Resource Conservation & Development Council

    EIN 481264574 · Headquarters: Livermore, CA, US · Environment · Latest available filing year: 2013 · Primary form: IRS Form 990-N

  95. San Francisco Bay Windjammers

    EIN 237157539 · Headquarters: Santa Cruz, CA, US · Environment · Latest available filing year: 2016 · Primary form: IRS Form 990-N

  96. San Francisco Beautiful

    EIN 946106011 · Headquarters: San Francisco, CA, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  97. San Francisco Beekeepers Association

    EIN 900750344 · Headquarters: SAN FRANCISCO, CA, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  98. San Francisco Bicycle Coalition

    EIN 943228199 · Headquarters: San Francisco, CA, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  99. San Francisco Botanical Garden Society at Strybing Arboretum

    EIN 946050168 · Headquarters: SAN FRANCISCO, CA, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  100. San Francisco Clean City Coalition

    EIN 943139897 · Headquarters: San Francisco, CA, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

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