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. Hermits Peak Watershed Alliance

    EIN 830514816 · Headquarters: Sapello, NM, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  2. Hernando Civic Garden Club

    EIN 721372899 · Headquarters: Hernando, MS, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  3. Hernando County Homesteading Inc

    EIN 933044513 · Headquarters: Spring HILL, FL, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  4. Herndon Environmental Network

    EIN 454822597 · Headquarters: Herndon, VA, US · Environment · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  5. Heroic Gardens

    EIN 824243509 · Headquarters: Elkins Park, PA, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990

  6. Heron Lake Watershed Restoration Association

    EIN 411915095 · Headquarters: BREWSTER, MN, US · Environment · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  7. Herons Forever

    EIN 300885979 · Headquarters: SEATTLE, WA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  8. Herpmapper Inc

    EIN 812426465 · Headquarters: Muscatine, IA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  9. Herring Gut Coastal Science Center

    EIN 920902723 · Headquarters: Port Clyde, ME, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  10. Herring Ponds Watershed Association Ltd

    EIN 272970848 · Headquarters: Sagamore Beach, MA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  11. Herrington Lake Conservation League Inc

    EIN 611399314 · Headquarters: Burgin, KY, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990

  12. Hesperia Garden Club

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

  13. Hess Creek Preserve

    EIN 990874340 · Headquarters: NEWBERG, OR, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  14. Hess Run Conservation Association

    EIN 203703455 · Headquarters: Ligonier, PA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  15. Heybourne Ranch Management Company

    EIN 994380911 · Headquarters: GARDNERVILLE, NV, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  16. Hhs Operation Graduation

    EIN 932928641 · Headquarters: Lufkin, TX, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  17. Hi'ilei Aloha LLC

    EIN 261210564 · Headquarters: Haleiwa, HI, USA · Environment · Latest available filing year: 2021 · Primary form: IRS Form 990

  18. Hi'ipaka LLC

    EIN 261537168 · Headquarters: Haleiwa, HI, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990

  19. Hi-line & Hobbles Back Country Horsemen

    EIN 991299136 · Headquarters: Salem, UT, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  20. Hiawassee River Watershed Coalition

    EIN 561970878 · Headquarters: Murphy, NC, USA · Environment · Latest available filing year: 2010 · Primary form: IRS Form 990

  21. Hiawatha Interpretive Association

    EIN 383240673 · Headquarters: Trenary, MI, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  22. Hiawatha Valley Resource Conservation and Development Assoc

    EIN 510185456 · Headquarters: Rochester, MN, US · Environment · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  23. Hibiscus Inc

    EIN 460966757 · Headquarters: New York, NY, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  24. Hibriten Garden Club

    EIN 990760916 · Headquarters: Lenoir, NC, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  25. Hickman Creek Conservancy Inc

    EIN 832895368 · Headquarters: Lexington, KY, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  26. Hickory Creek Watershed Planning Group

    EIN 460875737 · Headquarters: New Lenox, IL, US · Environment · Latest available filing year: 2012 · Primary form: IRS Form 990-N

  27. Hickory Hill African American Cemetery C1820-1950

    EIN 872564590 · Headquarters: Ashland, VA, US · Environment · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  28. Hickory Neighbors United

    EIN 473893305 · Headquarters: Trenton, MO, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  29. Hickory Nut Gorge Teaching and Research Reserve LLC

    EIN 474309439 · Headquarters: Hendersonville, NC, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  30. Hickory Preserve Inc

    EIN 923735291 · Headquarters: TALLAHASSEE, FL, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  31. Hicksville Trail Association

    EIN 884207494 · Headquarters: Hicksville, OH, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  32. Hidden Acres Water Cooperative

    EIN 992630062 · Headquarters: Salt Lake City, UT, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  33. Hidden Forest Environmental Education Preserve Inc

    EIN 331947519 · Headquarters: COLUMBIA, SC, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  34. Hidden Hills Greenspace Inc

    EIN 883259575 · Headquarters: Stone Mountain, GA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  35. Hidden Lake Conservancy Inc

    EIN 812923200 · Headquarters: BROOKFIELD, WI, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  36. Hidden Lake Conservation Associationinc

    EIN 204530341 · Headquarters: HARRISON, NY, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  37. Hidden Playground

    EIN 843473765 · Headquarters: Englewood, CO, US · Environment · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  38. Hidden Valley Lake Associates Inc

    EIN 010672137 · Headquarters: Abingdon, VA, US · Environment · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  39. Higgins Lake Foundation

    EIN 382864400 · Headquarters: ROSCOMMON, MI, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990

  40. Higgins Lake Land Conservancy

    EIN 113812984 · Headquarters: Higgins Lake, MI, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  41. Higgins Lake Swimmers Itch Organization

    EIN 472712269 · Headquarters: Grayling, MI, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  42. High 5 Initiative

    EIN 843505077 · Headquarters: NORTH EAST, MD, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  43. High Altitude Garden Club of Westcliffe

    EIN 205252211 · Headquarters: WESTCLIFFE, CO, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  44. High Ambition Climate Collective

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

  45. High Asia Habitat Fund

    EIN 850811514 · Headquarters: Dover, DE, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  46. High Atlas Foundation

    EIN 850478294 · Headquarters: NEW YORK, NY, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  47. High Bonanza Community Access

    EIN 852363935 · Headquarters: PARK CITY, UT, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  48. High Country Conservancy

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

  49. High Country Conservation Center

    EIN 840740775 · Headquarters: FRISCO, CO, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  50. High Country Garden Club

    EIN 860846001 · Headquarters: Payson, AZ, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  51. High Country News

    EIN 237015336 · Headquarters: PAONIA, CO, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  52. High Country Pathways Inc

    EIN 562216039 · Headquarters: blowing rock, NC, US · Environment · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  53. High Country Resource Conservation

    EIN 820416948 · Headquarters: ST ANTHONY, ID, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  54. High Country Xeriscape Council of Arizona

    EIN 861023297 · Headquarters: Payson, AZ, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  55. High Desert Chapter of the Native Plant Society of Oregon

    EIN 463007073 · Headquarters: sisters, OR, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  56. High Desert Daffodil Society

    EIN 922288401 · Headquarters: RENO, NV, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  57. High Desert Helpers Inc

    EIN 510204597 · Headquarters: Black Canyon City, AZ, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  58. High Desert Horticultural Center

    EIN 934334264 · Headquarters: Bend, OR, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  59. High Desert Iris Society

    EIN 320574550 · Headquarters: RENO, NV, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  60. High Desert Keepers Organization

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

  61. High Desert Partnership

    EIN 743261833 · Headquarters: BURNS, OR, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990

  62. High Desert Resource Conservation and Development Council

    EIN 880381285 · Headquarters: ALAMO, NV, USA · Environment · Latest available filing year: 2013 · Primary form: IRS Form 990-EZ

  63. High Desert Trail Committee Inc

    EIN 870653474 · Headquarters: Hurricane, UT, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  64. High Desert Wildcats Youth Football

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

  65. High Desert Wildtending Network

    EIN 461821073 · Headquarters: Portland, OR, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  66. High Efficiency Vehicle Foundation Inc

    EIN 453109804 · Headquarters: Weston, FL, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  67. High Falls Towaliga Watershed Alliance Inc

    EIN 550875011 · Headquarters: JACKSON, GA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  68. High Fish Trap Rush Lake Association

    EIN 800380928 · Headquarters: Boulder Junction, WI, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  69. High Impact Environmental Inc

    EIN 271465668 · Headquarters: CHESTERTOWN, MD, US · Environment · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  70. High Island Lake Association Inc

    EIN 841674665 · Headquarters: GLENCOE, MN, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  71. High Island Lake Conservation

    EIN 411560552 · Headquarters: NEW AUBURN, MN, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  72. High Level Happiness

    EIN 475602940 · Headquarters: Lincoln, NE, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  73. High Line Canal Preservation Association

    EIN 841167038 · Headquarters: Denver, CO, US · Environment · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  74. High Plains Environmental Center

    EIN 841581875 · Headquarters: LOVELAND, CO, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  75. High Plains Foundation

    EIN 841581860 · Headquarters: LOVELAND, CO, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  76. High Plains Grasslands Alliance Inc

    EIN 471059343 · Headquarters: Boxford, MA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  77. High Plains Resource Conservation

    EIN 731412849 · Headquarters: BUFFALO, OK, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  78. High Plains Resource Conservation & Development Area Inc

    EIN 752421448 · Headquarters: HEREFORD, TX, USA · Environment · Latest available filing year: 2013 · Primary form: IRS Form 990-EZ

  79. High Plains Weed Management Association

    EIN 020813424 · Headquarters: SCOTTSBLUFF, NE, USA · Environment · Latest available filing year: 2021 · Primary form: IRS Form 990

  80. High Resolution Rivers

    EIN 842663947 · Headquarters: Boise, ID, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  81. High Sierra Energy Foundation

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

  82. High Sierra Hikers Association Inc

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

  83. High Sierra Rural Alliance

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

  84. High Twelve International

    EIN 562487575 · Headquarters: deerfield beach, FL, US · Environment · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  85. High Uintas Preservation Council

    EIN 870565898 · Headquarters: Hyrum, UT, US · Environment · Latest available filing year: 2010 · Primary form: IRS Form 990-N

  86. Higher Society

    EIN 921851402 · Headquarters: Joplin, MO, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  87. Highland City Foundation

    EIN 461513545 · Headquarters: HIGHLAND, UT, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990

  88. Highland Conservancy

    EIN 201780223 · Headquarters: Highland, MI, US · Environment · Latest available filing year: 2015 · Primary form: IRS Form 990-N

  89. Highland Environmental Education Coalition Inc

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

  90. Highland Firefighters Association

    EIN 883001684 · Headquarters: highland, IN, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  91. Highland Lake Association

    EIN 010489647 · Headquarters: Windham, ME, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  92. Highland Lake Association

    EIN 994423111 · Headquarters: Warren Center, PA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  93. Highland Lake Watershed Association Inc

    EIN 061403617 · Headquarters: Winsted, CT, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  94. Highland Lakes Center Inc

    EIN 934677738 · Headquarters: Ashland, OR, USA · Environment · Latest available filing year: 2023 · Primary form: IRS Form 990-PF

  95. Highland Lakes Master Naturalists

    EIN 202022679 · Headquarters: Burnet, TX, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  96. Highland Park Conservancy Inc

    EIN 542128199 · Headquarters: Rochester, NY, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  97. Highland Shores Alliance

    EIN 922817449 · Headquarters: Sawyer, MI, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  98. Highlander Research & Education Center

    EIN 620646373 · Headquarters: New Market, TN, US · Environment · Latest available filing year: 2023 · Primary form: IRS Form 990

  99. Highlands Center for Climate Conservation and Connectivity Inc

    EIN 991397824 · Headquarters: WARWICK, NY, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  100. Highlands Center for Natural History

    EIN 860798677 · Headquarters: PRESCOTT, AZ, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

First page and all pages