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. Ste Global

    EIN 822965230 · Headquarters: San Diego, CA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  2. Stewards of Briones

    EIN 932812285 · Headquarters: Pleasant Hill, CA, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  3. Stewards of Public Land

    EIN 473570009 · Headquarters: Pasadena, CA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  4. Stewards of Soquel Forest

    EIN 770563353 · Headquarters: Mountain View, CA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  5. Stewards of the Sequoia

    EIN 830702363 · Headquarters: Wofford Heights, CA, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  6. Stewards of the Sierra National Forest

    EIN 831571101 · Headquarters: MADERA, CA, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  7. Stewardship for Generations

    EIN 393053064 · Headquarters: Santa Cruz, CA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  8. Stewardship West

    EIN 861846847 · Headquarters: ARNOLD, CA, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  9. Stockton Beautiful A Community Commitment

    EIN 680295089 · Headquarters: Stockton, CA, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  10. Stockton Cactus & Succulent Society

    EIN 237263539 · Headquarters: Ripon, CA, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  11. Stockton Garden Club Inc

    EIN 946083723 · Headquarters: STOCKTON, CA, US · Environment · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  12. Stockton Standing Up Inc

    EIN 731708362 · Headquarters: FRENCH CAMP, CA, USA · Environment · Latest available filing year: 2017 · Primary form: IRS Form 990-PF

  13. Stop Amalgam-mercury Poisoning

    EIN 770562812 · Headquarters: Tulare, CA, US · Environment · Latest available filing year: 2011 · Primary form: IRS Form 990-N

  14. Stop Coal Seam Fire Pollution Stop the Coal Mine Fires

    EIN 881248393 · Headquarters: SANATA ANA, CA, USA · Environment · Latest available filing year: 2023 · Primary form: IRS Form 990-EZ

  15. Stop Global Destruction

    EIN 851302739 · Headquarters: San Jose, CA, US · Environment · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  16. Stop Oil Seeps California Inc

    EIN 260230814 · Headquarters: SANTA BARBARA, CA, USA · Environment · Latest available filing year: 2021 · Primary form: IRS Form 990

  17. Stork Peterkin International Foundation

    EIN 274781697 · Headquarters: PAICINES, CA, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  18. Strata Habitat Foundation

    EIN 201778396 · Headquarters: LARKSPUR, CA, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  19. Strategic Energy Innovations

    EIN 680404081 · Headquarters: SAN RAFAEL, CA, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  20. Strawberry Growers of Southern California

    EIN 201649712 · Headquarters: Irvine, CA, US · Environment · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  21. Streaminders

    EIN 262216582 · Headquarters: Forest Ranch, CA, US · Environment · Latest available filing year: 2015 · Primary form: IRS Form 990-N

  22. Street Stewards Inc

    EIN 872540079 · Headquarters: San Diego, CA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  23. Streets for All FKA Streets for All Los Angeles

    EIN 920540278 · Headquarters: Los Angeles, CA, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  24. Student Climate Corps

    EIN 994410741 · Headquarters: DUBLIN, CA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  25. Studio Sproutling

    EIN 334061044 · Headquarters: Sunnyvale, CA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  26. Sturtevant Conservancy

    EIN 811524643 · Headquarters: Glendora, CA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  27. Su and Yu Family Foundation

    EIN 395020129 · Headquarters: IRVINE, CA, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990

  28. Suburban Roots

    EIN 822471454 · Headquarters: Danville, CA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  29. Sudden Oak Death Research Foundation

    EIN 208365774 · Headquarters: LARKSPUR, CA, USA · Environment · Latest available filing year: 2010 · Primary form: IRS Form 990

  30. SUGi

    EIN 842041713 · Headquarters: San Francisco, CA, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990

  31. Sullivan Canyon Preservation Association

    EIN 954834450 · Headquarters: LOS ANGELES, CA, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  32. Summerland Beautiful Inc

    EIN 843720677 · Headquarters: Summerland, CA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  33. Summerland Community Foundation

    EIN 932048827 · Headquarters: SANTA BARBARA, CA, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  34. Summit Adventure Inc

    EIN 770199441 · Headquarters: Bass Lake, CA, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  35. Summit Watershed Protection League

    EIN 311575165 · Headquarters: Redwood Estates, CA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  36. Sun Pump Inc

    EIN 833440011 · Headquarters: ALAMEDA, CA, US · Environment · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  37. Sunflower Star Laboratory

    EIN 873957769 · Headquarters: Moss Landing, CA, United States · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  38. Sunridge Conservancy

    EIN 680425556 · Headquarters: Sacramento, CA, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  39. Sunset Beach Partners Inc

    EIN 263887679 · Headquarters: Pacific Palisades, CA, US · Environment · Latest available filing year: 2015 · Primary form: IRS Form 990-N

  40. Sunshine Hill Residents Association

    EIN 861921526 · Headquarters: Burbank, CA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  41. Sunshine Polka-dot Foundation

    EIN 262322579 · Headquarters: SAN FRANCISCO, CA, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  42. Sunshine Soldiers

    EIN 813409816 · Headquarters: ENCINITAS, CA, USA · Environment · Latest available filing year: 2019 · Primary form: IRS Form 990-PF

  43. Sunslight Group Inc

    EIN 261932653 · Headquarters: San Marcos, CA, US · Environment · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  44. Sunview Bonsai Society

    EIN 923069757 · Headquarters: HUNTINGTON BEACH, CA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  45. Super Certification

    EIN 871538967 · Headquarters: Berkeley, CA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  46. Superorganism

    EIN 275006820 · Headquarters: San Anselmo, CA, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  47. Supporters Alliance for Environmental Responsibility

    EIN 833650876 · Headquarters: COVINA, CA, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  48. Supreme Court Foresters of America

    EIN 237631846 · Headquarters: Brentwood, CA, US · Environment · Latest available filing year: 2014 · Primary form: IRS Form 990-N

  49. Supreme Pythian Sisters

    EIN 237561846 · Headquarters: YUCAIPA, CA, US · Environment · Latest available filing year: 2011 · Primary form: IRS Form 990-N

  50. Surfer for Wetlands

    EIN 475463588 · Headquarters: Davis, CA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  51. Susan G Sheridan Memorial Garden Foundation

    EIN 264274410 · Headquarters: NOVATO, CA, US · Environment · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  52. Sustain Big Bear

    EIN 475073034 · Headquarters: Torrance, CA, US · Environment · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  53. Sustain with Change

    EIN 871491789 · Headquarters: NEWPORT COAST, CA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  54. Sustainability Is Sexy

    EIN 870830157 · Headquarters: Vista, CA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  55. Sustainability Park Recycling And Wildlife Legal Defense Fund

    EIN 202501877 · Headquarters: El Cerrito, CA, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  56. Sustainable Approaches to Novel Agriculture Corporation

    EIN 393034860 · Headquarters: McKinleyville, CA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  57. Sustainable Business Counsel

    EIN 392076684 · Headquarters: Los Angeles, CA, US · Environment · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  58. Sustainable Business Forum

    EIN 680367927 · Headquarters: San Jose, CA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  59. Sustainable Claremont

    EIN 264669727 · Headquarters: Claremont, CA, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  60. Sustainable Communities Ai Foundati On

    EIN 412984501 · Headquarters: CAMPBELL, CA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  61. Sustainable Conservation

    EIN 943232437 · Headquarters: San Francisco, CA, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990

  62. Sustainable Contra Costa

    EIN 300670501 · Headquarters: Walnut Creek, CA, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990

  63. Sustainable Danville Area

    EIN 460746267 · Headquarters: Danville, CA, US · Environment · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  64. Sustainable Eco Alliance Inc

    EIN 383992613 · Headquarters: PLEASANTON, CA, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990

  65. Sustainable Enviromental Education Inc

    EIN 208767846 · Headquarters: Whittier, CA, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  66. Sustainable Fishery Advocates

    EIN 571169538 · Headquarters: SANTA CRUZ, CA, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  67. Sustainable Futures

    EIN 680417561 · Headquarters: Santa Rosa, CA, US · Environment · Latest available filing year: 2008 · Primary form: IRS Form 990-N

  68. Sustainable Initiatives

    EIN 261884416 · Headquarters: Long Beach, CA, US · Environment · Latest available filing year: 2015 · Primary form: IRS Form 990-N

  69. Sustainable Innovation Council

    EIN 994991422 · Headquarters: Emeryville, CA, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  70. Sustainable Innovation Foundation

    EIN 472315887 · Headquarters: Culver City, CA, US · Environment · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  71. Sustainable Lafayette

    EIN 264130302 · Headquarters: LAFAYETTE, CA, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  72. Sustainable Land Stewardship Institute

    EIN 911772437 · Headquarters: Folsom, CA, US · Environment · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  73. Sustainable Living Institute

    EIN 542187888 · Headquarters: Santa Monica, CA, US · Environment · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  74. Sustainable Marin

    EIN 943308034 · Headquarters: FOREST KNOLLS, CA, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990

  75. Sustainable Napa County

    EIN 300472069 · Headquarters: NAPA, CA, USA · Environment · Latest available filing year: 2020 · Primary form: IRS Form 990

  76. Sustainable Ocean Alliance Inc

    EIN 824972091 · Headquarters: SAN FRANCISCO, CA, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  77. Sustainable Piedmont Connect

    EIN 460596094 · Headquarters: Piedmont, CA, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  78. Sustainable Ramona

    EIN 884396285 · Headquarters: Ramona, CA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  79. Sustainable Revolution Inc

    EIN 472244364 · Headquarters: oakland, CA, US · Environment · Latest available filing year: 2013 · Primary form: IRS Form 990-N

  80. Sustainable San Mateo County

    EIN 481265207 · Headquarters: San Mateo, CA, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990

  81. Sustainable Society

    EIN 455403210 · Headquarters: Redwood Shores, CA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  82. Sustainable Solano Inc

    EIN 050589694 · Headquarters: BENICIA, CA, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  83. Sustainable St Helena an Environmental Alliance Inc

    EIN 863594916 · Headquarters: ST HELENA, CA, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  84. Sustainable Surf

    EIN 453220205 · Headquarters: MANHATTAN BEACH, CA, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  85. Sustainable Surplus Exchange Inc

    EIN 274666846 · Headquarters: Carlsbad, CA, USA · Environment · Latest available filing year: 2017 · Primary form: IRS Form 990

  86. Sustainsd Inc

    EIN 871754204 · Headquarters: San diego, CA, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  87. Sutter Mutual Water Company

    EIN 941145434 · Headquarters: Robbins, CA, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  88. Sweetwater Collaborative

    EIN 814779546 · Headquarters: Santa Barbara, CA, US · Environment · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  89. Swift Foundation Co Manchester Capital Management

    EIN 770559600 · Headquarters: Santa Barbara, CA, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  90. Syzergy Inc

    EIN 352466006 · Headquarters: Sacramento, CA, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  91. Tabi Po Foundation

    EIN 883456484 · Headquarters: Palm Desert, CA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  92. Table Mountain Rowing Club

    EIN 813434935 · Headquarters: CHICO, CA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  93. Taft Community Gardens

    EIN 943472817 · Headquarters: Taft, CA, US · Environment · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  94. Tahoe Backcountry Alliance

    EIN 813760991 · Headquarters: Truckee, CA, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  95. Tahoe Blue Harvest Inc

    EIN 854187082 · Headquarters: Davis, CA, US · Environment · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  96. Tahoe City Beautification Committee

    EIN 680438910 · Headquarters: Homewood, CA, US · Environment · Latest available filing year: 2016 · Primary form: IRS Form 990-N

  97. Tahoe Composts

    EIN 932576895 · Headquarters: South Lake Tahoe, CA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  98. Tahoe Earth Day Foundation

    EIN 571214038 · Headquarters: South Lake Tahoe, CA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  99. Tahoe Earth Institute

    EIN 993393621 · Headquarters: CARNELIAN BAY, CA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  100. Tahoe Fund

    EIN 010974628 · Headquarters: TAHOE CITY, CA, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

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