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. Friends of Cabin John Creek Inc

    EIN 462293024 · Headquarters: CABIN JOHN, MD, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  2. Friends of Cache River National Wildlife Refuge

    EIN 814499615 · Headquarters: Conway, AR, USA · Environment · Latest available filing year: 2019 · Primary form: IRS Form 990-PF

  3. Friends of Caesar Creek

    EIN 311295670 · Headquarters: WAYNESVILLE, OH, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990

  4. Friends of Caldwell Vfw 4721

    EIN 883969402 · Headquarters: Caldwell, OH, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  5. Friends of Caleb Smith Preserve

    EIN 113559605 · Headquarters: Smithtown, NY, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  6. Friends of Caledon Natural Area

    EIN 542053333 · Headquarters: KING GEORGE, VA, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  7. Friends of Calkins Nature Area

    EIN 334741316 · Headquarters: Iowa Falls, IA, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  8. Friends of Calvert Cliffs State Park

    EIN 521884475 · Headquarters: LUSBY, MD, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  9. Friends of Camden State Park

    EIN 823343560 · Headquarters: Lynd, MN, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  10. Friends of Cameron Park Waco

    EIN 923975272 · Headquarters: Waco, TX, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  11. Friends of Camp Colton Inc

    EIN 861015268 · Headquarters: FLAGSTAFF, AZ, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  12. Friends of Camp Gibbs

    EIN 383547911 · Headquarters: IRON RIVER, MI, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  13. Friends of Campbell Lake

    EIN 993130983 · Headquarters: Anacortes, WA, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  14. Friends of Campbell Tract

    EIN 203140552 · Headquarters: Anchorage, AK, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  15. Friends of Canada De Los Osos

    EIN 463881345 · Headquarters: GILROY, CA, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990

  16. Friends of Canadian Wilderness

    EIN 472886678 · Headquarters: OTTAWA, OK, CA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  17. Friends of Canaveral Inc

    EIN 592991163 · Headquarters: NEW SMYRNA BEACH, FL, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  18. Friends of Canton Parks and Recreation

    EIN 920235757 · Headquarters: Canton, OH, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  19. Friends of Canyon Lake Inc

    EIN 010569999 · Headquarters: Canyon Lake, TX, US · Environment · Latest available filing year: 2013 · Primary form: IRS Form 990-N

  20. Friends of Cape Fear Botanical Garden

    EIN 833278546 · Headquarters: FAYETTEVILLE, NC, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  21. Friends of Cape Haze Inc

    EIN 208834117 · Headquarters: Cape Haze, FL, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  22. Friends of Cape Lookout

    EIN 333364003 · Headquarters: Winston Salem, NC, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  23. Friends of Cape Lookout National Seashore

    EIN 205755610 · Headquarters: Harkers Island, NC, US · Environment · Latest available filing year: 2017 · Primary form: IRS Form 990-N

  24. Friends of Cardinal Valley

    EIN 394094659 · Headquarters: Joplin, MO, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  25. Friends of Carlisle Parks Inc

    EIN 812717067 · Headquarters: CARLISLE, IA, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  26. Friends of Carmel Forest

    EIN 770252672 · Headquarters: CARMEL, CA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  27. Friends of Caroline Park

    EIN 814192388 · Headquarters: REDLANDS, CA, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  28. Friends of Carpenters Woods

    EIN 264345005 · Headquarters: Philadelphia, PA, US · Environment · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  29. Friends of Carson Road Woods Inc

    EIN 593778608 · Headquarters: Princeton, NJ, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  30. Friends of Carter Caves Inc

    EIN 270663417 · Headquarters: GRAYSON, KY, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  31. Friends of Cascade Lake Inc

    EIN 861987881 · Headquarters: Baltimore, MD, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  32. Friends of Cascade Park Inc

    EIN 311561217 · Headquarters: Elyria, OH, US · Environment · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  33. Friends of Casco Bay

    EIN 010452620 · Headquarters: PORTLAND, ME, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  34. Friends of Catherine and Channel Lakes

    EIN 813362437 · Headquarters: Chicago, IL, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  35. Friends of Cattus Island

    EIN 463184947 · Headquarters: Toms River, NJ, US · Environment · Latest available filing year: 2017 · Primary form: IRS Form 990-N

  36. Friends of Cave Creek Canyon

    EIN 273531633 · Headquarters: Portal, AZ, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  37. Friends of Cayuga-seneca Canalway Trail

    EIN 205044307 · Headquarters: Seneca Falls, NY, US · Environment · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  38. Friends of Cedar Lake

    EIN 862143304 · Headquarters: North Falmouth, MA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  39. Friends of Cedar Lake Inc

    EIN 472974571 · Headquarters: Cedar Rapids, IA, US · Environment · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  40. Friends of Cedar Rapids Historic Preservation

    EIN 812787587 · Headquarters: HIAWATHA, IA, US · Environment · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  41. Friends of Cedars of Lebanon State Park Inc

    EIN 471379748 · Headquarters: Lebanon, TN, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  42. Friends of Center Park Inc

    EIN 844091803 · Headquarters: Carlisle, MA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  43. Friends of Chakchiuma Swamp

    EIN 831228439 · Headquarters: GRENADA, MS, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  44. Friends of Channel Coast State Park Channel Coast Natural History Assoc

    EIN 770003881 · Headquarters: VENTURA, CA, USA · Environment · Latest available filing year: 2015 · Primary form: IRS Form 990-EZ

  45. Friends of Charlestown State Park

    EIN 811116935 · Headquarters: Charlestown, IN, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  46. Friends of Charlotte Harbor Estuary Inc

    EIN 651027666 · Headquarters: Punta Gorda, FL, US · Environment · Latest available filing year: 2016 · Primary form: IRS Form 990-N

  47. Friends of Cherokee Marsh Inc

    EIN 770689194 · Headquarters: MADISON, WI, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  48. Friends of Cherry Valley Inc

    EIN 542129012 · Headquarters: Stroudsburg, PA, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  49. Friends of Chesapeake Gateways Inc

    EIN 203998966 · Headquarters: Easton, MD, USA · Environment · Latest available filing year: 2011 · Primary form: IRS Form 990-EZ

  50. Friends of Chester Woods

    EIN 943458346 · Headquarters: Eyota, MN, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  51. Friends of Chesterfields Riverfront Inc

    EIN 541853639 · Headquarters: Chesterfield, VA, US · Environment · Latest available filing year: 2013 · Primary form: IRS Form 990-N

  52. Friends of Chevy Chase Circle

    EIN 464482719 · Headquarters: CHEVY CHASE, MD, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  53. Friends of Cheyenne Canon Inc

    EIN 841324887 · Headquarters: COLORADO SPRINGS, CO, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  54. Friends of Chickasaw County Conservation

    EIN 421462573 · Headquarters: Ionia, IA, US · Environment · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  55. Friends of China Garden at Us National Arboretum

    EIN 300371446 · Headquarters: Ashburn, VA, US · Environment · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  56. Friends of Christensen Forest

    EIN 923909845 · Headquarters: Aiken, SC, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  57. Friends of Chugach National Forest Avalanche Information Center

    EIN 680578518 · Headquarters: GIRDWOOD, AK, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  58. Friends of Churchville Nature Center

    EIN 232110120 · Headquarters: CHURCHVILLE, PA, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  59. Friends of Clackamas Lake Historic Ranger Station

    EIN 943152745 · Headquarters: Hood River, OR, US · Environment · Latest available filing year: 2008 · Primary form: IRS Form 990-N

  60. Friends of Clark County

    EIN 311580893 · Headquarters: ridgefield, WA, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  61. Friends of Clark Park Community Garden

    EIN 932283118 · Headquarters: Tempe, AZ, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  62. Friends of Clarkco State Park Inc

    EIN 825246187 · Headquarters: QUITMAN, MS, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  63. Friends of Clay County Conservation Foundation Inc Co Oneota Cons Found

    EIN 203698437 · Headquarters: SPENCER, IA, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  64. Friends of Claypit Pond Preserve Inc

    EIN 134060818 · Headquarters: Staten Island, NY, US · Environment · Latest available filing year: 2012 · Primary form: IRS Form 990-N

  65. Friends of Clean City

    EIN 261727917 · Headquarters: Tampa, FL, US · Environment · Latest available filing year: 2011 · Primary form: IRS Form 990-N

  66. Friends of Clean Up Henderson

    EIN 203252549 · Headquarters: HENDERSON, NC, US · Environment · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  67. Friends of Clear Creek

    EIN 834495195 · Headquarters: Empire, CO, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  68. Friends of Clear Lake Inc

    EIN 834699393 · Headquarters: Weston, WI, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  69. Friends of Clearlake Inc

    EIN 680396853 · Headquarters: LUCERNE, CA, US · Environment · Latest available filing year: 2016 · Primary form: IRS Form 990-N

  70. Friends of Cleveland Park Inc

    EIN 922324779 · Headquarters: GREENVILLE, SC, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  71. Friends of Clifty Falls State Park

    EIN 872072662 · Headquarters: Madison, IN, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  72. Friends of Climate Care

    EIN 854136357 · Headquarters: Mount Vernon, WA, US · Environment · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  73. Friends of Clinton State Park

    EIN 871616273 · Headquarters: Lawrence, KS, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  74. Friends of Coal Oil Point Reserve

    EIN 432035658 · Headquarters: Goleta, CA, US · Environment · Latest available filing year: 2011 · Primary form: IRS Form 990-N

  75. Friends of Coal West

    EIN 464358186 · Headquarters: LAKEWOOD, CO, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  76. Friends of Coastal Preservation

    EIN 010535011 · Headquarters: Westport Island, ME, US · Environment · Latest available filing year: 2010 · Primary form: IRS Form 990-N

  77. Friends of Coastal South Carolina

    EIN 571039362 · Headquarters: MT PLEASANT, SC, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  78. Friends of Cobb Mountain

    EIN 237440872 · Headquarters: Cobb, CA, US · Environment · Latest available filing year: 2011 · Primary form: IRS Form 990-N

  79. Friends of Cochamo

    EIN 841877080 · Headquarters: Flagstaff, AZ, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  80. Friends of Coecles Harbor Inc

    EIN 881009889 · Headquarters: SHELTER ISLAND HEIGHTS, NY, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  81. Friends of Cohn Arboretum

    EIN 830556582 · Headquarters: Baton Rouge, LA, US · Environment · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  82. Friends of Cold Spring Park Inc

    EIN 845171935 · Headquarters: Newton, MA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  83. Friends of Coles Woods Inc

    EIN 141601428 · Headquarters: Glens Falls, NY, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  84. Friends of Colonial Lake Park a Nj Nonprofit Corporation

    EIN 843775304 · Headquarters: Trenton, NJ, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  85. Friends of Colorado Bend State Park

    EIN 752880272 · Headquarters: BEND, TX, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  86. Friends of Colorado Lagoon

    EIN 330968096 · Headquarters: LONG BEACH, CA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  87. Friends of Colorado River Endowment

    EIN 742960623 · Headquarters: AUSTIN, TX, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  88. Friends of Colt Creek State Park Inc

    EIN 465083225 · Headquarters: Lakeland, FL, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  89. Friends of Columbus and Franklin County Metro Parks

    EIN 262332568 · Headquarters: WESTERVILLE, OH, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  90. Friends of Conchas Lake State Park

    EIN 822789260 · Headquarters: Albuquerque, NM, US · Environment · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  91. Friends of Congaree Swamp

    EIN 562057087 · Headquarters: Columbia, SC, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  92. Friends of Conneaut Creek Inc

    EIN 450512586 · Headquarters: Conneaut, OH, US · Environment · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  93. Friends of Connecticut State Parks Inc

    EIN 061424189 · Headquarters: West Hartford, CT, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  94. Friends of Connetquot Inc

    EIN 113364427 · Headquarters: OAKDALE, NY, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990

  95. Friends of Conservation Carpathia in the United States - Fcc Us Inc

    EIN 934980051 · Headquarters: DURHAM, NC, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990

  96. Friends of Conservation in Henry County Ltd

    EIN 204181514 · Headquarters: Mount Pleasant, IA, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  97. Friends of Conservation Inc

    EIN 421373599 · Headquarters: Cherokee, IA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  98. Friends of Cook Recreation Area

    EIN 873320820 · Headquarters: HERMITAGE, TN, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  99. Friends of Cooley Gardens and Other Greenspaces

    EIN 382550284 · Headquarters: Haslett, MI, US · Environment · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  100. Friends of Coopers Farm Cemetery Association

    EIN 882025292 · Headquarters: Clayton, DE, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N

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