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. Harbor Community Benefit Foundation

    EIN 452487333 · Headquarters: Wilmington, CA, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  2. Hardwood Forest Foundation Inc

    EIN 581933716 · Headquarters: Orange, CA, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  3. Harin

    EIN 991148506 · Headquarters: TUSTIN, CA, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  4. Harmonic Earth

    EIN 810831759 · Headquarters: OJAI, CA, US · Environment · Latest available filing year: 2017 · Primary form: IRS Form 990-N

  5. Harmony Coast Aquaculture Institute

    EIN 873092394 · Headquarters: Arroyo Grande, CA, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  6. Harmony Land Caretakers Inc

    EIN 932347161 · Headquarters: Tiburon, CA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  7. Harrison Park Mutual Water Co

    EIN 956092827 · Headquarters: Julian, CA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  8. Harwell Hamilton Harris Fellowship Parkway Conservancy Inc

    EIN 841949844 · Headquarters: Pasadena, CA, US · Environment · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  9. Haven Lake Conservancy

    EIN 010952293 · Headquarters: MOUNT SHASTA, CA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  10. Hawks View Group

    EIN 571201396 · Headquarters: Carlsbad, CA, US · Environment · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  11. Hayward Area Planning Association

    EIN 900248921 · Headquarters: Hayward, CA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  12. Hayward Community Gardens

    EIN 942440240 · Headquarters: HAYWARD, CA, US · Environment · Latest available filing year: 2013 · Primary form: IRS Form 990-N

  13. Headover Heels for Caring Sustainability

    EIN 874729707 · Headquarters: CONCORD, CA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  14. Headwaters Basin Project

    EIN 834593371 · Headquarters: NEVADA CITY, CA, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  15. Heal Our Oceans

    EIN 871787121 · Headquarters: SANTA MONICA, CA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  16. Heal the Bay

    EIN 954031055 · Headquarters: SANTA MONICA, CA, United States · Environment · Latest available filing year: 2023 · Primary form: IRS Form 990

  17. Heal the Ocean Inc

    EIN 770565183 · Headquarters: SANTA BARBARA, CA, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990

  18. Healdsburg Garden Club

    EIN 900582012 · Headquarters: Healdsburg, CA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  19. Healing Lifestyles Now Inc

    EIN 395028890 · Headquarters: Beverly Hills, CA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  20. Healing the Earth Kenneth Roberts

    EIN 942660826 · Headquarters: Sebastopol, CA, US · Environment · Latest available filing year: 2011 · Primary form: IRS Form 990-N

  21. Healing Tide

    EIN 471041116 · Headquarters: Berkeley, CA, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  22. Healingpaq

    EIN 205215501 · Headquarters: TORRANCE, CA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  23. Healthy Air Alliance

    EIN 842293847 · Headquarters: LOS ANGELES, CA, USA · Environment · Latest available filing year: 2022 · Primary form: IRS Form 990

  24. Healthy Day Partners

    EIN 454290015 · Headquarters: ENCINITAS, CA, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  25. Healthy Footprints Adventure Community Corp

    EIN 884103129 · Headquarters: Azusa, CA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  26. Healthy Homes Foundation Inc

    EIN 883550928 · Headquarters: Rialto, CA, US · Environment · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  27. Healthy Oceans Healthy People

    EIN 460647638 · Headquarters: Santa Cruz, CA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  28. Heart and Soil Garden Club

    EIN 680427485 · Headquarters: SAINT HELENA, CA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  29. Heartsafe Neighborhood Foundation Inc

    EIN 833874255 · Headquarters: HUNTINGTON BEACH, CA, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  30. Heather Farm Garden Center Assoc Inc

    EIN 237072009 · Headquarters: Walnut Creek, CA, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990

  31. Heatwave Resilience Foundation

    EIN 933454112 · Headquarters: IRVINE, CA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  32. Heaven on Earth Inc

    EIN 954783272 · Headquarters: Riverside, CA, US · Environment · Latest available filing year: 2007 · Primary form: IRS Form 990-N

  33. Heavenly Presents

    EIN 833771072 · Headquarters: SEBASTOPOL, CA, USA · Environment · Latest available filing year: 2023 · Primary form: IRS Form 990-PF

  34. Heirloom Cacao Preservation Fund

    EIN 475140351 · Headquarters: San Diego, CA, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  35. Helping Hand Tools

    EIN 450838456 · Headquarters: San Jose, CA, US · Environment · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  36. Helping You Heal Gardens Inc

    EIN 880581179 · Headquarters: Palm Desert, CA, US · Environment · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  37. Hendy Woods Community Inc

    EIN 454465332 · Headquarters: Philo, CA, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  38. Heritage Trails Fund

    EIN 942863695 · Headquarters: Walnut Creek, CA, US · Environment · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  39. Hermitage Santa Barbara

    EIN 451477526 · Headquarters: SANTA BARBARA, CA, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  40. Hesperia Garden Club

    EIN 330745841 · Headquarters: Hesperia, CA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  41. High Ambition Climate Collective

    EIN 933155147 · Headquarters: San Francisco, CA, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  42. High Country Conservancy

    EIN 452757132 · Headquarters: Anza, CA, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  43. High Desert Keepers Organization

    EIN 821047497 · Headquarters: Pinon Hills, CA, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  44. High Desert Wildcats Youth Football

    EIN 333571524 · Headquarters: Apple Valley, CA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  45. High Sierra Energy Foundation

    EIN 770528296 · Headquarters: MAMMOTH LAKES, CA, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  46. High Sierra Hikers Association Inc

    EIN 943361931 · Headquarters: Lafayette, CA, US · Environment · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  47. High Sierra Rural Alliance

    EIN 134286187 · Headquarters: Nevada City, CA, US · Environment · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  48. Highland Environmental Education Coalition Inc

    EIN 432038570 · Headquarters: Highland, CA, US · Environment · Latest available filing year: 2011 · Primary form: IRS Form 990-N

  49. Hihifo Sports Development and Rescue Center Inc

    EIN 932259499 · Headquarters: San Bruno, CA, USA · Environment · Latest available filing year: 2023 · Primary form: IRS Form 990-EZ

  50. Hiking Plus You

    EIN 814727673 · Headquarters: EASTVALE, CA, US · Environment · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  51. Hills Conservation Network

    EIN 272449885 · Headquarters: Berkeley, CA, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  52. Hillsborough Beautification Foundation

    EIN 911883931 · Headquarters: HILLSBOROUGH, CA, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  53. Hillsborough Garden Club

    EIN 237134059 · Headquarters: BURLINGAME, CA, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  54. Hillsborough Garden Club Trust

    EIN 237165097 · Headquarters: BURLINGAME, CA, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  55. Hima Mesopotamia Water and Peace in the Middle East

    EIN 274822160 · Headquarters: Sacramento, CA, US · Environment · Latest available filing year: 2013 · Primary form: IRS Form 990-N

  56. Hinkley Partnership for Healthy Living

    EIN 454964619 · Headquarters: Barstow, CA, US · Environment · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  57. Hispanic Motor Press Foundation

    EIN 371869809 · Headquarters: Oak Hills, CA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  58. Historic Brick Building Preservation Inc

    EIN 834390044 · Headquarters: Cedarville, CA, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  59. Historic Downtown Woodland Group

    EIN 814312095 · Headquarters: Woodland, CA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  60. Historic Garden League

    EIN 770404470 · Headquarters: MONTEREY, CA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  61. Holiday Cove Channel Maintenance Group

    EIN 270023054 · Headquarters: Lakeport, CA, US · Environment · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  62. Hollywood Beautification Team

    EIN 954358515 · Headquarters: MONTROSE, CA, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  63. Hollywood Green Team Inc

    EIN 262998595 · Headquarters: Studio City, CA, US · Environment · Latest available filing year: 2012 · Primary form: IRS Form 990-N

  64. Hollywood Media District Property Owners Association

    EIN 954779871 · Headquarters: LOS ANGELES, CA, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  65. Hollywoodland Community Orchard Association

    EIN 454113603 · Headquarters: Los Angeles, CA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  66. Holos Foundation Inc

    EIN 208177990 · Headquarters: San Francisco, CA, US · Environment · Latest available filing year: 2017 · Primary form: IRS Form 990-N

  67. Homa Communications Corp

    EIN 824979261 · Headquarters: GLENDALE, CA, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  68. Home Ground Habitats

    EIN 843398667 · Headquarters: Novato, CA, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  69. Home Planet Fund

    EIN 872269671 · Headquarters: VENTURA, CA, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  70. Homegrown Ministries

    EIN 921388344 · Headquarters: Encinitas, CA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  71. Homestead Valley Land Trust Inc

    EIN 942375721 · Headquarters: MILL VALLEY, CA, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  72. Hope to Action

    EIN 870803953 · Headquarters: SAN FRANCISCO, CA, US · Environment · Latest available filing year: 2010 · Primary form: IRS Form 990-N

  73. House on Fire

    EIN 863850122 · Headquarters: Newbury Park, CA, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  74. Housing As A Platform Inc

    EIN 851623289 · Headquarters: San Marcos, CA, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  75. Hpmd Foundation

    EIN 263881867 · Headquarters: FREMONT, CA, USA · Environment · Latest available filing year: 2016 · Primary form: IRS Form 990-PF

  76. Huang Lai Family Foundation

    EIN 854271793 · Headquarters: Benicia, CA, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  77. Huck Fin an Environmental Education Program

    EIN 330479034 · Headquarters: San Diego, CA, US · Environment · Latest available filing year: 2015 · Primary form: IRS Form 990-N

  78. Hughson Arboretum and Gardens

    EIN 272140566 · Headquarters: HUGHSON, CA, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  79. Humboldt Bay Center for Sustainable Living

    EIN 261104153 · Headquarters: Arcata, CA, US · Environment · Latest available filing year: 2011 · Primary form: IRS Form 990-N

  80. Humboldt Botanical Gardens Foundation

    EIN 680243631 · Headquarters: EUREKA, CA, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  81. Humboldt Countyprescribed Burn Association

    EIN 830694143 · Headquarters: Eureka, CA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  82. Humboldt Orchid Society

    EIN 680122923 · Headquarters: Arcata, CA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  83. Humboldt Waterkeeper

    EIN 861468130 · Headquarters: Arcata, CA, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  84. Humboldt Watershed Council

    EIN 680407833 · Headquarters: Fortuna, CA, US · Environment · Latest available filing year: 2010 · Primary form: IRS Form 990-N

  85. Hummingbird Project

    EIN 882866660 · Headquarters: MARINA DEL REY, CA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  86. Huntington Beach Community Garden

    EIN 270678187 · Headquarters: HUNTINGTN BCH, CA, US · Environment · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  87. Huntington Beach Tree Society Inc

    EIN 330815267 · Headquarters: Huntington Beach, CA, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  88. Huntington Beach Wetlands Conservancy

    EIN 330145660 · Headquarters: HUNTINGTON BEACH, CA, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990

  89. Huntington Lake Big Creek Historical Conservancy

    EIN 912084573 · Headquarters: Mountain View, CA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  90. Huntsman Nature Foundation

    EIN 922970737 · Headquarters: murrieta, CA, US · Environment · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  91. Hw Harmony Organization

    EIN 992871690 · Headquarters: Fremont, CA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  92. Hydrofathom Corporation

    EIN 992779286 · Headquarters: San Luis Obispo, CA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  93. Hydrogen Education Council

    EIN 371896014 · Headquarters: Oak Park, CA, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  94. Hydrogen for Clean Air Inc

    EIN 831942598 · Headquarters: Los Angeles, CA, US · Environment · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  95. Hydrogen Fuel Cell Partnership

    EIN 883534257 · Headquarters: W SACRAMENTO, CA, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  96. Hydrologic Research Center

    EIN 330576233 · Headquarters: SAN DIEGO, CA, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  97. I AM

    EIN 320800327 · Headquarters: San Diego, CA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  98. I Am Green Inc

    EIN 844627830 · Headquarters: SAN DIEGO, CA, USA · Environment · Latest available filing year: 2023 · Primary form: IRS Form 990-EZ

  99. I Heart Oakland Alameda Estuary

    EIN 995148552 · Headquarters: Alameda, CA, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  100. I Love A Clean San Diego County Inc

    EIN 952566791 · Headquarters: San Diego, CA, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

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