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 Gulf State Park

    EIN 465137296 · Headquarters: Gulf Shores, AL, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  2. Friends of Gull Lake Coalition

    EIN 394320901 · Headquarters: BRAINERD, MN, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  3. Friends of Haggetts Pond Incorporated

    EIN 993551055 · Headquarters: Andover, MA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  4. Friends of Hakalau Forest National Wildlife Refuge

    EIN 680634915 · Headquarters: HILO, HI, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990

  5. Friends of Haleakala National Park Inc

    EIN 990330457 · Headquarters: Makawao, HI, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  6. Friends of Halibut Point State Park

    EIN 222586100 · Headquarters: Rockport, MA, US · Environment · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  7. Friends of Hallcreek

    EIN 931280531 · Headquarters: MYRTLE POINT, OR, US · Environment · Latest available filing year: 2016 · Primary form: IRS Form 990-N

  8. Friends of Halls Pond Inc

    EIN 043269709 · Headquarters: Brookline, MA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  9. Friends of Hamilton Jackson Pocono Park & Open Space Commission

    EIN 205651994 · Headquarters: REEDERS, PA, USA · Environment · Latest available filing year: 2017 · Primary form: IRS Form 990-EZ

  10. Friends of Hammonasset Inc

    EIN 061546997 · Headquarters: MADISON, CT, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  11. Friends of Hammondsport Area Trails & Parks Inc

    EIN 472238055 · Headquarters: HAMMONDSPORT, NY, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  12. Friends of Hap Inc

    EIN 850521545 · Headquarters: SAVANNAH, GA, US · Environment · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  13. Friends of Harbison State Forest Inc

    EIN 201272169 · Headquarters: Columbia, SC, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  14. Friends of Harbor Hill Environmental Sanctuary

    EIN 830803063 · Headquarters: GIG HARBOR, WA, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  15. Friends of Harbors Beaches and Parks Inc

    EIN 330776377 · Headquarters: Newport Beach, CA, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  16. Friends of Harford Education Fund Inc

    EIN 651293681 · Headquarters: Bel Air, MD, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  17. Friends of Harmonie State Park Inc

    EIN 800764909 · Headquarters: New Harmony, IN, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  18. Friends of Harold Parker Inc

    EIN 473007396 · Headquarters: Byfield, MA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  19. Friends of Harpeth River State Park Inc

    EIN 474071895 · Headquarters: Kingston Springs, TN, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  20. Friends of Harrington Beach State Park Inc

    EIN 391624645 · Headquarters: BELGIUM, WI, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  21. Friends of Harrisburg Greenways

    EIN 392486318 · Headquarters: Harrisburg, NC, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  22. Friends of Harrison Lake State Park Inc

    EIN 341897475 · Headquarters: Archbold, OH, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  23. Friends of Harriton Preserve

    EIN 874239147 · Headquarters: Bryn Mawr, PA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  24. Friends of Hart Memorial Park

    EIN 831537266 · Headquarters: BAKERSFIELD, CA, USA · Environment · Latest available filing year: 2019 · Primary form: IRS Form 990-EZ

  25. Friends of Hart-miller Island Inc

    EIN 853370049 · Headquarters: Middle River, MD, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  26. Friends of Hashawha Bear Branch

    EIN 873588980 · Headquarters: Westminster, MD, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  27. Friends of Hawaiian Islands National Wildlife Refuge

    EIN 471778045 · Headquarters: Honolulu, HI, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  28. Friends of Hawaiis Urban Forest

    EIN 311648023 · Headquarters: KAILUA, HI, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  29. Friends of Hawn Association

    EIN 812935481 · Headquarters: Ste Genevieve, MO, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  30. Friends of Hayes Park Inc

    EIN 042986067 · Headquarters: Boston, MA, US · Environment · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  31. Friends of Heavener Runestone Inc

    EIN 800710948 · Headquarters: Heavener, OK, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  32. Friends of Hebron Parks Inc

    EIN 263441614 · Headquarters: Hebron, CT, US · Environment · Latest available filing year: 2014 · Primary form: IRS Form 990-N

  33. Friends of Heckscher State Park Inc

    EIN 992898845 · Headquarters: East Islip, NY, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  34. Friends of Heery Woods Nature Center

    EIN 421456886 · Headquarters: Clarksville, IA, US · Environment · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  35. Friends of Heights Parks

    EIN 874185924 · Headquarters: Cleveland Heights, OH, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  36. Friends of Helen Avalynne Tawes Garden Inc

    EIN 061713445 · Headquarters: Edgewater, MD, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  37. Friends of Hellhole Canyon Open Space Preserve

    EIN 330925993 · Headquarters: Valley Center, CA, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  38. Friends of Hemenway Woods

    EIN 352465989 · Headquarters: Milton, MA, US · Environment · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  39. Friends of Hemlock Bluffs

    EIN 561969934 · Headquarters: Cary, NC, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  40. Friends of Hemlock Gorge

    EIN 834097058 · Headquarters: Waban, MA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  41. Friends of Hempstead Plains at Nassau Community College Inc

    EIN 113623301 · Headquarters: Garden City, NY, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  42. Friends of Henderson County Wildlife

    EIN 843527055 · Headquarters: GLADSTONE, IL, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  43. Friends of Hendricks Park

    EIN 931330075 · Headquarters: EUGENE, OR, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  44. Friends of Heron Haven

    EIN 432068500 · Headquarters: Boys Town, NE, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  45. Friends of Herons Landing at Nicks Lagoon

    EIN 931546751 · Headquarters: Seabeck, WA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  46. Friends of Herring River Wellfleet-truro Inc

    EIN 270479634 · Headquarters: SOUTH WELLFLEET, MA, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  47. Friends of Herring Run Parks Inc

    EIN 462321951 · Headquarters: Baltimore, MD, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  48. Friends of Herrontown Wood

    EIN 471842281 · Headquarters: Princeton, NJ, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  49. Friends of Hexter Garden

    EIN 834065559 · Headquarters: Dallas, TX, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  50. Friends of Heybrook Ridge

    EIN 510629374 · Headquarters: INDEX, WA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  51. Friends of Hickory Nut Gorge

    EIN 261437785 · Headquarters: lake lure, NC, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  52. Friends of Hickory Ridge Trail Inc

    EIN 392028570 · Headquarters: CHIPPEWA FALLS, WI, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  53. Friends of Hidden Lake

    EIN 994234206 · Headquarters: Placerville, CA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  54. Friends of Hidden Pond and Pohick Stream Valley Inc

    EIN 760779236 · Headquarters: Springfield, VA, US · Environment · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  55. Friends of Hidden Valley Inc

    EIN 431857764 · Headquarters: Lawrence, KS, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  56. Friends of Hidden Valley Nature Center

    EIN 452460026 · Headquarters: Corona, CA, US · Environment · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  57. Friends of High Camp

    EIN 883925215 · Headquarters: TELLURIDE, CO, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990

  58. Friends of High Cliff State Park

    EIN 391911880 · Headquarters: SHERWOOD, WI, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990

  59. Friends of High Point State Park

    EIN 223824159 · Headquarters: Sussex, NJ, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  60. Friends of High School Park

    EIN 232829218 · Headquarters: CHELTENHAM, PA, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  61. Friends of Highline Lake State Park

    EIN 931892710 · Headquarters: FRUITA, CO, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  62. Friends of Hiland Hall Garden Inc

    EIN 274209541 · Headquarters: North Bennington, VT, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  63. Friends of Hill Forest

    EIN 261839924 · Headquarters: Rougemont, NC, US · Environment · Latest available filing year: 2015 · Primary form: IRS Form 990-N

  64. Friends of Hilltop Arboretum Inc

    EIN 581799472 · Headquarters: BATON ROUGE, LA, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  65. Friends of Hingham Harbor

    EIN 473895296 · Headquarters: Hingham, MA, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  66. Friends of Historic Banyan Drive

    EIN 882374304 · Headquarters: Hilo, HI, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  67. Friends of Historic Bristol Inc

    EIN 830779532 · Headquarters: Bristol, RI, US · Environment · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  68. Friends of Historic Heishmans Mill

    EIN 884132103 · Headquarters: CARLISLE, PA, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  69. Friends of Historic Long Pond Dam of Danville-kingston

    EIN 863131156 · Headquarters: Danville, NH, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  70. Friends of Hobbs State Park

    EIN 383687756 · Headquarters: ROGERS, AR, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990

  71. Friends of Hog Island Aka Fohi

    EIN 273608853 · Headquarters: BREMEN, ME, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990

  72. Friends of Hoja Nueva

    EIN 474323459 · Headquarters: Bainbridge Island, WA, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  73. Friends of Holly Recreation Area Inc

    EIN 383368752 · Headquarters: Holly, MI, US · Environment · Latest available filing year: 2012 · Primary form: IRS Form 990-N

  74. Friends of Hollywood Cemetery

    EIN 260540502 · Headquarters: RICHMOND, VA, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990

  75. Friends of Hollywood Florida Inc

    EIN 464865561 · Headquarters: Hollywood, FL, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  76. Friends of Holmdel Open Space

    EIN 223687619 · Headquarters: Holmdel, NJ, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  77. Friends of Holmes Harbor

    EIN 412158595 · Headquarters: Freeland, WA, US · Environment · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  78. Friends of Hondo Canyon

    EIN 832707017 · Headquarters: TARPLEY, TX, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  79. Friends of Honolulu Botanical Gardens

    EIN 990107937 · Headquarters: HONOLULU, HI, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  80. Friends of Hood Pond Inc

    EIN 842737562 · Headquarters: Topsfield, MA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  81. Friends of Hooven Forest

    EIN 332344881 · Headquarters: Spokane, WA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  82. Friends of Hope Mills Lake Inc

    EIN 204514240 · Headquarters: Hope Mills, NC, US · Environment · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  83. Friends of Hope Valley

    EIN 943039736 · Headquarters: Markleeville, CA, US · Environment · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  84. Friends of Hopewell Valley Open Space

    EIN 222810757 · Headquarters: PENNINGTON, NJ, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  85. Friends of Horicon Marsh International Education Center Inc

    EIN 391807809 · Headquarters: HORICON, WI, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  86. Friends of Horicon National Wildlife Refuge

    EIN 392044842 · Headquarters: Mayville, WI, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  87. Friends of Horn Pond

    EIN 920552614 · Headquarters: Woburn, MA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  88. Friends of Horseshoe Lake

    EIN 873535169 · Headquarters: SHAKER HTS, OH, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  89. Friends of Horseshoe Park

    EIN 272482871 · Headquarters: QUEEN CREEK, AZ, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  90. Friends of Horton Center on Pine Mountain Inc

    EIN 454140596 · Headquarters: Canaan, NH, US · Environment · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  91. Friends of Howland Preserve Inc

    EIN 811292035 · Headquarters: Dalton, PA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  92. Friends of Hra Inc

    EIN 205310691 · Headquarters: HOLLAND, MA, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  93. Friends of Huddart & Wunderlich Parks

    EIN 030465880 · Headquarters: WOODSIDE, CA, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  94. Friends of Hudson Parks

    EIN 320415552 · Headquarters: Hudson, OH, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  95. Friends of Hungry Mother State Park Inc

    EIN 542008840 · Headquarters: Marion, VA, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  96. Friends of Huntington Beach State Park

    EIN 900061665 · Headquarters: Murells Inlet, SC, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  97. Friends of Huntsville Parks and Recreation

    EIN 832718376 · Headquarters: Huntsville, AL, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  98. Friends of Hurricane Creek Inc

    EIN 320077772 · Headquarters: Tuscaloosa, AL, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  99. Friends of Hutto Dog Park INC

    EIN 471086249 · Headquarters: Hutto, TX, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  100. Friends of Ichetucknee Springs

    EIN 593480044 · Headquarters: Fort White, FL, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

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