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. Chicago Park Garden Club

    EIN 946114226 · Headquarters: Chicago Park, CA, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  2. Chicas Verdes Corporation

    EIN 850907771 · Headquarters: LOS ANGELES, CA, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  3. Chico Bonsai Society

    EIN 332627107 · Headquarters: CHICO, CA, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  4. Chico Horticultural Society

    EIN 237206950 · Headquarters: CHICO, CA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  5. Chico Reef Club

    EIN 452860182 · Headquarters: Chico, CA, US · Environment · Latest available filing year: 2016 · Primary form: IRS Form 990-N

  6. Chileno Valley Newt Brigade

    EIN 853457419 · Headquarters: Inverness, CA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  7. China - US Energy Efficiency Alliance

    EIN 251909187 · Headquarters: San Francisco, CA, USA · Environment · Latest available filing year: 2017 · Primary form: IRS Form 990-EZ

  8. China Youth 4 Environmental Sustain

    EIN 263735337 · Headquarters: PAUMA VALLEY, CA, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990

  9. Chirp for Garden Wildlife Inc

    EIN 330758100 · Headquarters: La Quinta, CA, US · Environment · Latest available filing year: 2015 · Primary form: IRS Form 990-N

  10. Christmas Bay Foundation

    EIN 760674686 · Headquarters: RANCHO MIRAGE, CA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  11. Chrysalis Institute

    EIN 205947298 · Headquarters: Mariposa, CA, US · Environment · Latest available filing year: 2014 · Primary form: IRS Form 990-N

  12. Chuck Haugen Conservation Fund

    EIN 203937946 · Headquarters: Marina, CA, US · Environment · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  13. Chumash Heritage Foundation

    EIN 874632627 · Headquarters: SANTA YNEZ, CA, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  14. Cigarette Butt Pollution Project

    EIN 275099153 · Headquarters: San Diego, CA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  15. Circle of Life Connection

    EIN 680496344 · Headquarters: ALBANY, CA, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990

  16. Citizens Advocating for Roblar Rural Quality

    EIN 272077408 · Headquarters: Cotati, CA, US · Environment · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  17. Citizens Caring for Clearlake

    EIN 923180631 · Headquarters: CLEARLAKE OAKS, CA, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  18. Citizens Climate Education Corp

    EIN 262948811 · Headquarters: CORONADO, CA, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  19. Citizens Climate Lobby West Los Angeles

    EIN 841789819 · Headquarters: Los Angeles, CA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  20. Citizens Coalition for a Safe Community

    EIN 263824830 · Headquarters: CULVER CITY, CA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  21. Citizens Committee to Complete the Refuge

    EIN 770518777 · Headquarters: Fremont, CA, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990

  22. Citizens Environmental Council of Burlingame

    EIN 812527457 · Headquarters: BURLINGAME, CA, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  23. Citizens for a Better Williams Inc

    EIN 264116545 · Headquarters: WILLIAMS, CA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  24. Citizens for a New Oildale

    EIN 204881609 · Headquarters: Bakersfield, CA, US · Environment · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  25. Citizens for Coastal Conservancy

    EIN 833516727 · Headquarters: IMPERIAL BEACH, CA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  26. Citizens for Communities Preservation Inc

    EIN 264522742 · Headquarters: Walnut, CA, US · Environment · Latest available filing year: 2017 · Primary form: IRS Form 990-N

  27. Citizens for Greener Communities

    EIN 812623128 · Headquarters: El Sobrante, CA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  28. Citizens for North County

    EIN 474738442 · Headquarters: CARLSBAD, CA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  29. Citizens for Responisible Forest Management

    EIN 770326023 · Headquarters: Boulder Creek, CA, US · Environment · Latest available filing year: 2016 · Primary form: IRS Form 990-N

  30. Citizens for the Carpinteria Bluffs Inc

    EIN 770434858 · Headquarters: Carpinteria, CA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  31. Citizens Looking at Impacts of Mining

    EIN 263461567 · Headquarters: Grass Valley, CA, US · Environment · Latest available filing year: 2016 · Primary form: IRS Form 990-N

  32. Citizens Planning Association

    EIN 952104424 · Headquarters: SANTA BARBARA, CA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  33. Citizens Protecting Humboldt Bay

    EIN 920915361 · Headquarters: Bayside, CA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  34. Citizens United for Resources and Environment Inc

    EIN 954830802 · Headquarters: RIVERSIDE, CA, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  35. Citizens' Climate International Corp

    EIN 862244197 · Headquarters: CORONADO, CA, USA · Environment · Latest available filing year: 2023 · Primary form: IRS Form 990-EZ

  36. City Farmers Helping Others

    EIN 473281736 · Headquarters: San Diego, CA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  37. City Grazing

    EIN 352566095 · Headquarters: Tecopa, CA, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  38. City of Gardena Public Improvement Corporation

    EIN 954075592 · Headquarters: Gardena, CA, US · Environment · Latest available filing year: 2010 · Primary form: IRS Form 990-N

  39. Civilization Works

    EIN 812714086 · Headquarters: ALBANY, CA, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  40. Civita Public Maintenance Corporation

    EIN 464716959 · Headquarters: SAN DIEGO, CA, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  41. Clan Rose Society of America

    EIN 237112660 · Headquarters: Berkeley, CA, US · Environment · Latest available filing year: 2012 · Primary form: IRS Form 990-N

  42. Claremont Canyon Conservancy

    EIN 010620297 · Headquarters: Berkeley, CA, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990

  43. Claremont Hills Conservation Corp

    EIN 954618459 · Headquarters: Claremont, CA, US · Environment · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  44. Claremont Preservation Coalition

    EIN 821712087 · Headquarters: Berkeley, CA, US · Environment · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  45. Classy Ladies Social Club of California

    EIN 870744802 · Headquarters: Fairfield, CA, US · Environment · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  46. Clean & Green Pomona

    EIN 834221264 · Headquarters: Pomona, CA, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  47. Clean Air California

    EIN 874292770 · Headquarters: San Rafael, CA, USA · Environment · Latest available filing year: 2023 · Primary form: IRS Form 990-EZ

  48. Clean Air Coalition Of North Whittier and Avocado Heights

    EIN 831103587 · Headquarters: LA PUENTE, CA, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  49. Clean Air Now

    EIN 330087555 · Headquarters: RIVERSIDE, CA, USA · Environment · Latest available filing year: 2017 · Primary form: IRS Form 990-EZ

  50. Clean Air Now Coalition

    EIN 873808311 · Headquarters: Sausalito, CA, USA · Environment · Latest available filing year: 2023 · Primary form: IRS Form 990-EZ

  51. Clean Cities Sacramento

    EIN 810575508 · Headquarters: Sacramento, CA, US · Environment · Latest available filing year: 2023 · Primary form: IRS Form 990

  52. Clean Coast California

    EIN 921147635 · Headquarters: San Diego, CA, USA · Environment · Latest available filing year: 2023 · Primary form: IRS Form 990-EZ

  53. Clean Consulting

    EIN 934340230 · Headquarters: Los Angeles, CA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  54. Clean Cruiser Project

    EIN 824736760 · Headquarters: Friant, CA, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  55. Clean Day in La

    EIN 931609783 · Headquarters: Burbank, CA, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  56. Clean Education

    EIN 263472975 · Headquarters: Irvine, CA, US · Environment · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  57. Clean Energy Association

    EIN 330941499 · Headquarters: La Jolla, CA, US · Environment · Latest available filing year: 2016 · Primary form: IRS Form 990-N

  58. Clean for a Cause Incorporated

    EIN 811272215 · Headquarters: LA JOLLA, CA, US · Environment · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  59. Clean Marinas

    EIN 270286601 · Headquarters: Lodi, CA, US · Environment · Latest available filing year: 2010 · Primary form: IRS Form 990-N

  60. Clean Reefs

    EIN 830663726 · Headquarters: SANTA ROSA, CA, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  61. Clean Tahoe Program

    EIN 680339531 · Headquarters: South Lake Tahoe, CA, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  62. Clean Technology Council

    EIN 272157923 · Headquarters: Agoura Hills, CA, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  63. Clean Together Change Together Live Together

    EIN 933000216 · Headquarters: Los Angeles, CA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  64. Clean Water Ambassadors Foundation

    EIN 465003601 · Headquarters: LOS ANGELES, CA, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  65. Clean Water and Jobs for California

    EIN 300680544 · Headquarters: Sacramento, CA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  66. Clean Water California

    EIN 463100464 · Headquarters: San Francisco, CA, US · Environment · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  67. Clean Water Sonoma-mari

    EIN 463174612 · Headquarters: Rohnert Park, CA, US · Environment · Latest available filing year: 2017 · Primary form: IRS Form 990-N

  68. Clean Water Works Education Foundation

    EIN 993561454 · Headquarters: WHITTIER, CA, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  69. Clean Waterfront Redondo

    EIN 260502846 · Headquarters: Redondo Beach, CA, US · Environment · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  70. Clean World Foundation

    EIN 821936918 · Headquarters: SAN FRANCISCO, CA, US · Environment · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  71. Clean-dezert

    EIN 845126545 · Headquarters: OCEANSIDE, CA, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  72. Clean1earth

    EIN 873793708 · Headquarters: Merced, CA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  73. Cleaning Cali Foundation Inc

    EIN 332726857 · Headquarters: SAN MATEO, CA, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  74. Cleanlawithme Inc

    EIN 392297057 · Headquarters: Montebello, CA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  75. Cleanleap Incorporated

    EIN 991612646 · Headquarters: Fremont, CA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  76. Cleantech Education Foundation

    EIN 261584449 · Headquarters: SAN DIEGO, CA, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  77. Cleantech Open

    EIN 263507343 · Headquarters: REDWOOD CITY, CA, USA · Environment · Latest available filing year: 2017 · Primary form: IRS Form 990

  78. Cleantech Rising

    EIN 821984589 · Headquarters: El Segundo, CA, US · Environment · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  79. Cleanups for Change

    EIN 465768660 · Headquarters: Ventura, CA, US · Environment · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  80. Clear Blue Conservation

    EIN 815459667 · Headquarters: Carlsbad, CA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  81. Clear Blue Sea

    EIN 813066017 · Headquarters: San Diego, CA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  82. Clear Creek Volunteer Fire Department Association

    EIN 743136628 · Headquarters: Chester, CA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  83. Clear Lake Environmental Research Center

    EIN 471489147 · Headquarters: Lakeport, CA, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  84. Clear Water Vision

    EIN 262911936 · Headquarters: Walnut Creek, CA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  85. Clear Waterways Organization Inc

    EIN 465673295 · Headquarters: Oxnard, CA, US · Environment · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  86. Cleveland National Forest Foundation Inc

    EIN 330632156 · Headquarters: DESCANSO, CA, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  87. Clientearth USA Inc

    EIN 810722756 · Headquarters: SANTA MONICA, CA, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  88. Climate Action California

    EIN 884217994 · Headquarters: Oakland, CA, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  89. Climate Action California Foundation

    EIN 923757221 · Headquarters: Oakland, CA, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990

  90. Climate Action Guide

    EIN 863716320 · Headquarters: TRUCKEE, CA, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  91. Climate Action Reserve

    EIN 680477330 · Headquarters: Los Angeles, CA, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  92. Climate Action Reserve Blind Tr

    EIN 276493622 · Headquarters: Los Angeles, CA, US · Environment · Latest available filing year: 2011 · Primary form: IRS Form 990-N

  93. Climate Action Systems Inc

    EIN 842441063 · Headquarters: BOLINAS, CA, USA · Environment · Latest available filing year: 2023 · Primary form: IRS Form 990

  94. Climate and Wildfire Institute Inc

    EIN 863588375 · Headquarters: San Francisco, CA, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  95. Climate Cabinet Education

    EIN 923390074 · Headquarters: SAN FRANCISCO, CA, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  96. Climate Change Law Foundation

    EIN 462323075 · Headquarters: Sacramento, CA, US · Environment · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  97. Climate Change Plan B Inc

    EIN 882168298 · Headquarters: Oceanside, CA, US · Environment · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  98. Climate Circle

    EIN 811015686 · Headquarters: San Francisco, CA, US · Environment · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  99. Climate Collaborative Inc

    EIN 473104757 · Headquarters: Pleasanton, CA, US · Environment · Latest available filing year: 2016 · Primary form: IRS Form 990-N

  100. Climate Community Center

    EIN 931405788 · Headquarters: Palo Alto, CA, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N

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