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. Carolines Agape Project Llc

    EIN 833185147 · Headquarters: Crawfordville, FL, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  2. Carolyn A Victor Land Conservancy Inc

    EIN 812387707 · Headquarters: Fond Du Lac, WI, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  3. Carothers Coastal Gardens

    EIN 881072034 · Headquarters: Seabrook, TX, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  4. Carpe Diem West

    EIN 943373078 · Headquarters: Sausalito, CA, US · Environment · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  5. Carpenter Lake Association Inc

    EIN 411774209 · Headquarters: Eagle River, WI, US · Environment · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  6. Carpentier Contributions for a Better America % Scott Carpentier

    EIN 843501837 · Headquarters: CLEARWATER, FL, USA · Environment · Latest available filing year: 2023 · Primary form: IRS Form 990-EZ

  7. Carpet America Recovery Effort Inc

    EIN 020639766 · Headquarters: DALTON, GA, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  8. Carquinez Regional Environmental Education Center

    EIN 680358741 · Headquarters: CROCKETT, CA, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  9. Carr Township Conservation Club

    EIN 050615522 · Headquarters: MEDORA, IN, US · Environment · Latest available filing year: 2017 · Primary form: IRS Form 990-N

  10. Carrboro Parks Project

    EIN 562275038 · Headquarters: Carrboro, NC, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  11. Carriboo Conservancy Inc

    EIN 841401700 · Headquarters: Pocatello, ID, US · Environment · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  12. Carrie Dickerson Foundation

    EIN 010765811 · Headquarters: TULSA, OK, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  13. Carrie T Watson Garden Club

    EIN 300452695 · Headquarters: Erie, PA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  14. Carroll Cave Conservancy Inc

    EIN 481206357 · Headquarters: Stilwell, KS, US · Environment · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  15. Carroll Concerned Citizens

    EIN 274819448 · Headquarters: carrollton, OH, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  16. Carroll County Conservation Foundation

    EIN 421177014 · Headquarters: CARROLL, IA, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  17. Carroll County Forest Fire Wardens Association

    EIN 393887309 · Headquarters: Brookfield, NH, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  18. Carroll County Land Trust Inc

    EIN 521753235 · Headquarters: Westminster, MD, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  19. Carroll County Master Gardeners Association Inc

    EIN 201916219 · Headquarters: Carrollton, GA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  20. Carrolls Water Association

    EIN 911127836 · Headquarters: CARROLLS, WA, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  21. Carrollton Manor Land Trust Inc

    EIN 522248153 · Headquarters: Adamstown, MD, US · Environment · Latest available filing year: 2008 · Primary form: IRS Form 990-N

  22. Carrotmob Inc

    EIN 272672951 · Headquarters: San Francisco, CA, US · Environment · Latest available filing year: 2014 · Primary form: IRS Form 990-N

  23. Carson Valley Reforestation and Beautification Foundation

    EIN 880434416 · Headquarters: Gardnerville, NV, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  24. Carson Valley Trails Association

    EIN 880355499 · Headquarters: MINDEN, NV, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  25. Carter Lake Preservation Society Inc C/o Joan Harder

    EIN 203786236 · Headquarters: CARTER LAKE, IA, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  26. Carter P Brown Legacy Preservation Fund

    EIN 843842278 · Headquarters: Holland, MI, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990

  27. Carteret County Extension Master Volunteer Association

    EIN 352468874 · Headquarters: Morehead City, NC, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  28. Cartm

    EIN 311541425 · Headquarters: Manzanita, OR, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  29. Cary Creative Center Inc

    EIN 454019909 · Headquarters: Cary, NC, US · Environment · Latest available filing year: 2014 · Primary form: IRS Form 990-N

  30. Cary Institute of Ecosystem Studies Inc

    EIN 223232968 · Headquarters: MILLBROOK, NY, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  31. Carye Family Land Trust Co Richard F Perkins

    EIN 200522909 · Headquarters: STOW, MA, USA · Environment · Latest available filing year: 2012 · Primary form: IRS Form 990

  32. Casa Pacheco Preservation Foundation

    EIN 320217219 · Headquarters: Monterey, CA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  33. Cascabel Conservation Association

    EIN 860866920 · Headquarters: Benson, AZ, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  34. Cascade Backcountry Alliance

    EIN 352780403 · Headquarters: Seattle, WA, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  35. Cascade Cleanup Crew

    EIN 853219367 · Headquarters: LAKEWOOD, WA, US · Environment · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  36. Cascade Climate

    EIN 932117635 · Headquarters: Somerville, MA, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  37. Cascade Coalition for Sustainable Communities

    EIN 432019354 · Headquarters: Umpqua, OR, US · Environment · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  38. Cascade Colorado Park Association Inc

    EIN 841179289 · Headquarters: Cascade, CO, US · Environment · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  39. Cascade Community Enhancement Corp

    EIN 061661058 · Headquarters: Cascade, IA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  40. Cascade Forest Conservancy

    EIN 911737883 · Headquarters: VANCOUVER, WA, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  41. Cascade Head Biosphere Collaborative

    EIN 921694289 · Headquarters: OTIS, OR, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  42. Cascade Mycological Society

    EIN 931274419 · Headquarters: Eugene, OR, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  43. Cascade Project Inc

    EIN 261639832 · Headquarters: Boise, ID, US · Environment · Latest available filing year: 2017 · Primary form: IRS Form 990-N

  44. Cascade Sierra Solutions

    EIN 204463950 · Headquarters: OREGON CITY, OR, USA · Environment · Latest available filing year: 2016 · Primary form: IRS Form 990

  45. Cascade Siskiyou Fund

    EIN 830927922 · Headquarters: Ashland, OR, US · Environment · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  46. Cascade Volunteers

    EIN 824734321 · Headquarters: Springfield, OR, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  47. Cascadia Action

    EIN 475230235 · Headquarters: Portland, OR, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  48. Cascadia Magical Activists

    EIN 331414177 · Headquarters: PORTLAND, OR, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  49. Cascadia Media Lab

    EIN 825038571 · Headquarters: Portland, OR, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  50. Cascadia Wild

    EIN 931263285 · Headquarters: Portland, OR, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  51. Cascadia Wildlands

    EIN 931293019 · Headquarters: EUGENE, OR, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  52. Casco Bay Trail Alliance

    EIN 842432839 · Headquarters: Yarmouth, ME, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  53. Casco-naples Earth Day Organization

    EIN 832538662 · Headquarters: Naples, ME, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  54. Case Inlet Shoreline Association

    EIN 260780797 · Headquarters: VAUGHN, WA, US · Environment · Latest available filing year: 2008 · Primary form: IRS Form 990-N

  55. Case Institute Inc

    EIN 571100530 · Headquarters: Spartanburg, SC, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  56. Case Management Society of America Inc

    EIN 461358989 · Headquarters: ELLENTON, FL, US · Environment · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  57. Case Management Society of America Inc

    EIN 562351707 · Headquarters: Little Rock, AR, US · Environment · Latest available filing year: 2007 · Primary form: IRS Form 990-N

  58. Case St Community Club

    EIN 900368436 · Headquarters: Middlebury, VT, US · Environment · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  59. Case4good

    EIN 833908078 · Headquarters: Half Moon Bay, CA, USA · Environment · Latest available filing year: 2020 · Primary form: IRS Form 990-PF

  60. Casey Ray Hankins Foundation for a Cleaner Forest

    EIN 831554484 · Headquarters: Paradise, CA, US · Environment · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  61. Casey Trees

    EIN 311766444 · Headquarters: Washington, DC, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  62. Casm Sfv Inc

    EIN 461243595 · Headquarters: Sylmar, CA, US · Environment · Latest available filing year: 2017 · Primary form: IRS Form 990-N

  63. Casper Community Greenhouse Project

    EIN 460968958 · Headquarters: CASPER, WY, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  64. Casper Mountain Preservation Alliance

    EIN 992194099 · Headquarters: CASPER, WY, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  65. Casper Technology Inc

    EIN 871603215 · Headquarters: Jamaica, NY, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  66. Caspers Park Preservation Foundation

    EIN 954620200 · Headquarters: San Juan Capistrano, CA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  67. Cass County Conservation Stewards

    EIN 932473824 · Headquarters: Cassopolis, MI, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  68. Cass County Sustainability Committee

    EIN 263212902 · Headquarters: Peculiar, MO, US · Environment · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  69. Cassian-long Lake Association Inc

    EIN 391816413 · Headquarters: Harshaw, WI, US · Environment · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  70. Cassina Garden Club Inc

    EIN 581308464 · Headquarters: SAINT SIMONS ISLAND, GA, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  71. Castanea Foundation Inc

    EIN 202727759 · Headquarters: MONTPELIER, VT, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  72. Castiglione A Casauria Foundation

    EIN 943275970 · Headquarters: Honolulu, HI, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  73. Castle Manor Garden Club

    EIN 061719243 · Headquarters: Staten Island, NY, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  74. Castle Mountain Coalition Inc

    EIN 208348228 · Headquarters: Chickaloon, AK, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  75. Castle Pinckney Historical Preservation Society

    EIN 472894663 · Headquarters: CHARLESTON, SC, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  76. Castleberry Parks and Recreation

    EIN 462109594 · Headquarters: Castleberry, AL, USA · Environment · Latest available filing year: 2019 · Primary form: IRS Form 990-EZ

  77. Castleland Resource Conservation an Development Inc

    EIN 870487394 · Headquarters: CASTLE DALE, UT, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  78. Castro Garden Club

    EIN 742276131 · Headquarters: Castroville, TX, US · Environment · Latest available filing year: 2017 · Primary form: IRS Form 990-N

  79. Casual Starfish Brand Inc

    EIN 820960785 · Headquarters: LAKE WORTH, FL, US · Environment · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  80. Cat Action Treasury Inc

    EIN 850435896 · Headquarters: CAPE NEDDICK, ME, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  81. Catalina Ecology Project

    EIN 364711777 · Headquarters: Los Angeles, CA, US · Environment · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  82. Catalina Marine Society

    EIN 800523866 · Headquarters: Lomita, CA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  83. Catalina Sea Bass Fund Inc

    EIN 330769316 · Headquarters: AVALON, CA, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  84. Catalog Choice

    EIN 262504208 · Headquarters: New York, NY, USA · Environment · Latest available filing year: 2015 · Primary form: IRS Form 990-EZ

  85. Catalyst

    EIN 222776079 · Headquarters: Plainfield, VT, US · Environment · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  86. Catalyst4 Inc

    EIN 873323607 · Headquarters: PALO ALTO, CA, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  87. Cataract Sportsmens Club Inc

    EIN 237229228 · Headquarters: CATARACT, WI, USA · Environment · Latest available filing year: 2023 · Primary form: IRS Form 990

  88. Cataract Water Users Association

    EIN 810425023 · Headquarters: Harrison, MT, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  89. Catawba Farm and Food Coalition

    EIN 272015044 · Headquarters: CHESTER, SC, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990

  90. Catawba Lands Conservancy

    EIN 581969605 · Headquarters: Charlotte, NC, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  91. Catawba Riverkeeper Foundation Inc

    EIN 562034780 · Headquarters: MCADENVILLE, NC, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  92. Catawba Valley Extension Master Gardener Volunteer Association

    EIN 842930370 · Headquarters: Newton, NC, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  93. Catawba Valley Orchid Society Inc

    EIN 770691657 · Headquarters: Newton, NC, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  94. Catawba Valley Wildlife Club Inc

    EIN 311717145 · Headquarters: Hickory, NC, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990

  95. Catawba-wateree Relicensing Coalition Inc

    EIN 562209052 · Headquarters: Troutman, NC, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  96. Category 5 Wetlands Watch Inc

    EIN 452819826 · Headquarters: Seattle, WA, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  97. Category Six Pesticide Training Committee Inc

    EIN 320498855 · Headquarters: Ithaca, NY, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  98. Catf Action Inc

    EIN 842360880 · Headquarters: BOSTON, MA, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  99. Catfish Lake Association

    EIN 731640916 · Headquarters: EAGLE RIVER, WI, US · Environment · Latest available filing year: 2017 · Primary form: IRS Form 990-N

  100. Cathleen Stone Island Education Center Inc

    EIN 042104062 · Headquarters: BOSTON, MA, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

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