Environment nonprofits

Environment nonprofits. Browse 35,718 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. Cathleen Stone Island Outward Bound School Inc

    EIN 043027900 · Headquarters: BOSTON, MA, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  2. Catoctin Area Mountain Parks Environmental Resources Inc

    EIN 521285316 · Headquarters: Frederick, MD, US · Environment · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  3. Catoctin Forest Alliance Inc

    EIN 264223157 · Headquarters: Thurmont, MD, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  4. Catoctin Land Trust Inc

    EIN 010578410 · Headquarters: FREDERICK, MD, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  5. Catoctin Preservation Foundation Inc

    EIN 542032901 · Headquarters: Waterford, VA, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  6. Catonsville Rails to Trail Inc

    EIN 522178775 · Headquarters: Catonsville, MD, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  7. Catskill Ag Inc

    EIN 205309801 · Headquarters: Delhi, NY, US · Environment · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  8. Catskill Center for Conservation & Development Inc

    EIN 237058142 · Headquarters: ARKVILLE, NY, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990

  9. Catskill Citizens for Safe Energy

    EIN 262926239 · Headquarters: Fremont Center, NY, USA · Environment · Latest available filing year: 2021 · Primary form: IRS Form 990-EZ

  10. Catskill Clean Water Fund

    EIN 272818464 · Headquarters: Brooklyn, NY, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  11. Catskill Forest Association Inc Endowment Fund

    EIN 226611272 · Headquarters: ARKVILLE, NY, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  12. Catskill Heritage Alliance

    EIN 141818578 · Headquarters: Shandaken, NY, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  13. Catskill Mountain Institute Ltd

    EIN 843298728 · Headquarters: JEFFERSONVLLE, NY, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  14. Catskill Mountainkeeper Inc

    EIN 510583769 · Headquarters: LIVINGSTON MANOR, NY, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  15. Catskill Watershed Corporation

    EIN 141798021 · Headquarters: Arkville, NY, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990

  16. Catskills Live - Trails & Wilderness Association

    EIN 263516018 · Headquarters: Mount Tremper, NY, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  17. Caumsett Foundation Inc

    EIN 113396186 · Headquarters: HUNTINGTON, NY, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  18. Caura Futures Inc

    EIN 510541583 · Headquarters: Berkeley, CA, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  19. Cave and Spring Research Group Inc

    EIN 922491048 · Headquarters: Pinellas Park, FL, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  20. Cave Conservancy of Hawaii

    EIN 562286339 · Headquarters: Ocean View, HI, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  21. Cave Conservancy of the Virginias

    EIN 541150211 · Headquarters: GLEN ALLEN, VA, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  22. Cave Creek Dark Sky

    EIN 932991826 · Headquarters: Cave Creek, AZ, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  23. Cavendish Community & Conservation Association

    EIN 161636517 · Headquarters: Cavendish, VT, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  24. Cawaco Resource Conservation & Development Council Inc

    EIN 631027283 · Headquarters: BIRMINGHAM, AL, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  25. Cayucos Land Conservancy

    EIN 770506896 · Headquarters: CAYUCOS, CA, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  26. Cayuga Lake Watershed Network

    EIN 161556541 · Headquarters: Ithaca, NY, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  27. Cayuga Nature Center

    EIN 161187385 · Headquarters: ITHACA, NY, USA · Environment · Latest available filing year: 2012 · Primary form: IRS Form 990

  28. Cayuta Lake Property Owners Assoc

    EIN 161583393 · Headquarters: Alpine, NY, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  29. Cazenovia Lake Association

    EIN 161077710 · Headquarters: Cazenovia, NY, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990

  30. Cazenovia New York Lions Club Foundation Inc

    EIN 274471242 · Headquarters: CAZENOVIA, NY, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  31. Cazenovia Preservation Foundation Inc

    EIN 166101151 · Headquarters: Cazenovia, NY, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990

  32. Cbmc Inc

    EIN 510184567 · Headquarters: Torrance, CA, US · Environment · Latest available filing year: 2015 · Primary form: IRS Form 990-N

  33. Cca Florida Foundation Inc

    EIN 274793890 · Headquarters: ORLANDO, FL, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  34. Cca Foundation Inc

    EIN 264544384 · Headquarters: CAPTIVA, FL, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  35. Cca Louisiana Foundation

    EIN 261114980 · Headquarters: BATON ROUGE, LA, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  36. Cca Texas Fund

    EIN 750309036 · Headquarters: HOUSTON, TX, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  37. Ccap Action Fund

    EIN 271821178 · Headquarters: Washington, DC, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  38. Ccc Foundation

    EIN 680160977 · Headquarters: FAIR OAKS, CA, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990

  39. Cchs Cheer Booster Inc

    EIN 853432834 · Headquarters: Fort Lauderdale, FL, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  40. Ccmad Financing Corporation

    EIN 943169441 · Headquarters: Concord, CA, US · Environment · Latest available filing year: 2016 · Primary form: IRS Form 990-N

  41. Cco Services

    EIN 873780411 · Headquarters: SPRING VALLEY, NY, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  42. Ccsep Foundation

    EIN 463133930 · Headquarters: Los Angeles, CA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  43. Ccto Charlotte Cleans the Ocean Inc

    EIN 872344341 · Headquarters: Alpine, CA, US · Environment · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  44. Cdc Environmental Inc

    EIN 251867885 · Headquarters: BUTLER, PA, US · Environment · Latest available filing year: 2013 · Primary form: IRS Form 990-N

  45. Cder Rights of Nature Campaign Team

    EIN 854237615 · Headquarters: Eugene, OR, US · Environment · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  46. Cdots Institute for Innovation & Economi

    EIN 412682426 · Headquarters: OKLAHOMA CITY, OK, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  47. CDP

    EIN 364709977 · Headquarters: London, NY, United Kingdom · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  48. CDRA Issues & Education Foundation

    EIN 364086233 · Headquarters: Chicago, IL, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  49. Ce Buyers Institute

    EIN 842207299 · Headquarters: WASHINGTON, DC, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  50. Cebolla Nutrias Watershed Association

    EIN 333607635 · Headquarters: ABIQUIU, NM, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  51. Cec Stuyvesant Cove Inc

    EIN 522440116 · Headquarters: LONG ISLAND CITY, NY, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  52. Cecil Land Trust Inc

    EIN 522111036 · Headquarters: ELKTON, MD, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990

  53. Cecil Land Use Association Inc

    EIN 463860003 · Headquarters: Elkton, MD, US · Environment · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  54. Cedar Creek Lake Garden Club

    EIN 883549986 · Headquarters: Maybank, TX, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  55. Cedar Creek Wildlife Project Inc

    EIN 263022228 · Headquarters: HUNTERTOWN, IN, US · Environment · Latest available filing year: 2016 · Primary form: IRS Form 990-N

  56. Cedar Grove Foundation

    EIN 993438877 · Headquarters: MENLO PARK, CA, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  57. Cedar Haven Civic Association on the Patuxent River Inc

    EIN 450481539 · Headquarters: Aquasco, MD, US · Environment · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  58. Cedar Key Garden Club Inc

    EIN 432080032 · Headquarters: Cedar Key, FL, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  59. Cedar Keys Audubon

    EIN 811780605 · Headquarters: CEDAR KEY, FL, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  60. Cedar Lake Association

    EIN 050460651 · Headquarters: MONKTON, VT, US · Environment · Latest available filing year: 2008 · Primary form: IRS Form 990-N

  61. Cedar Lake Association Inc

    EIN 411827682 · Headquarters: Morristown, MN, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  62. Cedar Lake Conservancy

    EIN 411855704 · Headquarters: Aitkin, MN, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  63. Cedar Lake Conservation Club

    EIN 270547659 · Headquarters: Annandale, MN, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  64. Cedar Lake Enhancement Association Inc

    EIN 351974317 · Headquarters: Cedar Lake, IN, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  65. Cedar Lake Growth Inc

    EIN 261518473 · Headquarters: Hinton, OK, US · Environment · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  66. Cedar Lake Park Preservation And Development Association

    EIN 411653031 · Headquarters: Minneapolis, MN, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990

  67. Cedar Lakes Conservation Foundation Inc

    EIN 391284451 · Headquarters: WEST BEND, WI, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990

  68. Cedar Mountain Nordic Ski Club

    EIN 134350920 · Headquarters: Cedar City, UT, US · Environment · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  69. Cedar Nature Society

    EIN 333043135 · Headquarters: Livermore, CA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  70. Cedar Park Neighbors

    EIN 232044435 · Headquarters: Philadelphia, PA, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  71. Cedar Point Gardeners

    EIN 341433372 · Headquarters: Sandusky, OH, US · Environment · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  72. Cedar Rapids and Iowa City Walleye Club

    EIN 844208581 · Headquarters: Cedar Rapids, IA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  73. Cedar River Preservation Foundation

    EIN 421277033 · Headquarters: Saint Ansgar, IA, US · Environment · Latest available filing year: 2015 · Primary form: IRS Form 990-N

  74. Cedar Springs Community Water

    EIN 993803183 · Headquarters: Sagle, ID, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  75. Cedar Valley Arboretum & Botanic Gardens

    EIN 421447541 · Headquarters: WATERLOO, IA, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  76. Cedar Valley Association for Soft Trails

    EIN 264787754 · Headquarters: CEDAR FALLS, IA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  77. Cedar Valley Trails Partnership

    EIN 421449239 · Headquarters: Cedar Falls, IA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  78. Cedar West Inc

    EIN 205598297 · Headquarters: MORGANFIELD, KY, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  79. Cedarburg Junior Womans Club Inc

    EIN 391238200 · Headquarters: Cedarburg, WI, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  80. Cedaredge Community Gardens

    EIN 271493306 · Headquarters: CEDAREDGE, CO, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990

  81. Cedarroot

    EIN 273566407 · Headquarters: NORDLAND, WA, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  82. CEED Foundation

    EIN 920451890 · Headquarters: Old Bridge, NJ, USA · Environment · Latest available filing year: 2023 · Primary form: IRS Form 990

  83. Ceiba Biological Center

    EIN 431754471 · Headquarters: SAINT LOUIS, MO, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  84. Celandine Seed Collective

    EIN 332195825 · Headquarters: Costa Mesa, CA, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  85. Celebrate Hernando Inc

    EIN 550879237 · Headquarters: Hernando, MS, US · Environment · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  86. Celebrate Wilson

    EIN 832655116 · Headquarters: Wilson, NY, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  87. Celebration of Our Mountains Inc

    EIN 364920453 · Headquarters: EL Paso, TX, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  88. Celery Pond Advocates

    EIN 205822517 · Headquarters: SOUTH HAVEN, MI, US · Environment · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  89. Celidon Foundation

    EIN 020594259 · Headquarters: Lompoc, CA, US · Environment · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  90. Celina Garden Club

    EIN 954895019 · Headquarters: Celina, TX, US · Environment · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  91. Cement Kiln Recycling Coalition

    EIN 521679270 · Headquarters: Arlington, VA, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  92. Cemetery Restoration and Preservation So

    EIN 872766949 · Headquarters: Monticello, FL, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  93. Cenla Daylily Society

    EIN 721418385 · Headquarters: Lake charles, LA, US · Environment · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  94. Centennial Garden Club Cgc

    EIN 861973729 · Headquarters: Woodbridge, VA, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  95. Centennial Hill Gradening Projectin C

    EIN 631227762 · Headquarters: Montgomery, AL, US · Environment · Latest available filing year: 2010 · Primary form: IRS Form 990-N

  96. Centennial Land Trust

    EIN 841333415 · Headquarters: Orchard, CO, US · Environment · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  97. Centennial Valley Association Inc

    EIN 202063285 · Headquarters: Dillon, MT, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  98. Centennial Valley Preservation Fund

    EIN 521883556 · Headquarters: ST LOUIS PARK, MN, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  99. Center for A Holistic Ecology

    EIN 522439752 · Headquarters: Hohenwald, TN, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  100. Center for Access and Resource Defense

    EIN 261226330 · Headquarters: VICTORVILLE, CA, US · Environment · Latest available filing year: 2015 · Primary form: IRS Form 990-N

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