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. Humboldt Orchid Society

    EIN 680122923 · Headquarters: Arcata, CA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  2. Humboldt Waterkeeper

    EIN 861468130 · Headquarters: Arcata, CA, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  3. Humboldt Watershed Council

    EIN 680407833 · Headquarters: Fortuna, CA, US · Environment · Latest available filing year: 2010 · Primary form: IRS Form 990-N

  4. Humboldt Watershed CWMA

    EIN 200289010 · Headquarters: Spring Creek, NV, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  5. Hummingbird Cay Foundation Inc

    EIN 237268623 · Headquarters: SOUTHPORT, CT, USA · Environment · Latest available filing year: 2020 · Primary form: IRS Form 990

  6. Hummingbird Project

    EIN 882866660 · Headquarters: MARINA DEL REY, CA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  7. Huna Sanctuary Inc

    EIN 931775380 · Headquarters: Brandon, FL, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  8. Hundred Acre Hollows Inc

    EIN 814291257 · Headquarters: Melbourne, FL, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  9. Hundred Acre Pond Association Inc

    EIN 272318102 · Headquarters: WEST KINGSTON, RI, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  10. Hundredgivers

    EIN 813389073 · Headquarters: Loveland, CO, US · Environment · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  11. Huneebee Project Inc

    EIN 853837316 · Headquarters: NEW HAVEN, CT, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  12. Hunt Hill Farm Trust

    EIN 141867440 · Headquarters: New Milford, CT, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  13. Hunt in Common

    EIN 872225625 · Headquarters: West Hurley, NY, US · Environment · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  14. Hunt Lake Association

    EIN 200079549 · Headquarters: Faribault, MN, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  15. Hunter Lake Vilas Co Corp

    EIN 813261457 · Headquarters: Conover, WI, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  16. Hunter Mill Garden Club

    EIN 541402552 · Headquarters: OAKTON, VA, US · Environment · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  17. Hunter Unity

    EIN 851773519 · Headquarters: Cornelius, OR, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  18. Hunterdon Land Trust

    EIN 223477465 · Headquarters: FLEMINGTON, NJ, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  19. Hunterdon Watercolor Society

    EIN 223671275 · Headquarters: Milford, NJ, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  20. Hunters Point Waterfowl Foundation

    EIN 383826476 · Headquarters: AVON, OH, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  21. Hunting Creek Garden Club Inc

    EIN 541934641 · Headquarters: Alexandria, VA, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  22. Hunting for Christ

    EIN 821251723 · Headquarters: ODENVILLE, AL, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  23. Hunting Ground Friends Inc

    EIN 993521816 · Headquarters: HUNTINGDON, PA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  24. Hunting Heritage Foundation

    EIN 453834511 · Headquarters: Montgomery, AL, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  25. Hunting Park Community Solar Initiative

    EIN 871649846 · Headquarters: Philadelphia, PA, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  26. Huntingdon County Game Fish and Forestry Association

    EIN 237281579 · Headquarters: Huntingdon, PA, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  27. Huntington Beach Community Garden

    EIN 270678187 · Headquarters: HUNTINGTN BCH, CA, US · Environment · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  28. Huntington Beach Tree Society Inc

    EIN 330815267 · Headquarters: Huntington Beach, CA, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  29. Huntington Beach Wetlands Conservancy

    EIN 330145660 · Headquarters: HUNTINGTON BEACH, CA, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990

  30. Huntington County Master Gardeners Inc

    EIN 263475386 · Headquarters: Huntington, IN, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  31. Huntington Historical and Community Trust

    EIN 222498795 · Headquarters: Huntington, VT, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  32. Huntington Lake Big Creek Historical Conservancy

    EIN 912084573 · Headquarters: Mountain View, CA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  33. Huntington Oyster Bay Audubon Society Inc

    EIN 112701066 · Headquarters: HUNTINGTON, NY, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  34. Huntington Woods Homeowners Association

    EIN 611339020 · Headquarters: Frankfort, KY, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  35. Huntress Woods-n-waters Outdoors

    EIN 413360432 · Headquarters: HINESVILLE, GA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  36. Huntsburg Conservancy & Historic Pr

    EIN 933515985 · Headquarters: Newton, NJ, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  37. Huntsman Nature Foundation

    EIN 922970737 · Headquarters: murrieta, CA, US · Environment · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  38. Huntsville Botanical Garden Foundation Inc

    EIN 631210114 · Headquarters: HUNTSVILLE, AL, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  39. Huntsville Environmental Coalition

    EIN 993509352 · Headquarters: Madison, AL, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  40. Huntsville Madison County Botanical Garden Society Inc

    EIN 630800109 · Headquarters: HUNTSVILLE, AL, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  41. Huntsville Tree Foundation Inc

    EIN 631280663 · Headquarters: Huntsville, AL, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  42. Hurley Pride Committee Inc

    EIN 743233639 · Headquarters: Hurley, NM, US · Environment · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  43. Huron 100 Races Incorporated

    EIN 934129901 · Headquarters: Whitmore Lake, MI, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  44. Huron County Land Reutilization

    EIN 831340521 · Headquarters: NORWALK, OH, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  45. Huron County Master Gardener Association

    EIN 300073613 · Headquarters: Norwalk, OH, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  46. Huron County Nature Center Inc

    EIN 382996070 · Headquarters: PORT AUSTIN, MI, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  47. Huron Lake Association

    EIN 752975214 · Headquarters: Plainfield, WI, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  48. Huron Pines Resource Conservation & Development Council Inc

    EIN 382502172 · Headquarters: GAYLORD, MI, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990

  49. Huron River Watershed Council

    EIN 381806452 · Headquarters: ANN ARBOR, MI, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  50. Huron Township Rotary Charities

    EIN 455292466 · Headquarters: New Boston, MI, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  51. Huron Valley Audubon Society

    EIN 383198594 · Headquarters: New Hudson, MI, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  52. Huron Valley Conservation Associati

    EIN 382777435 · Headquarters: BELLEVILLE, MI, USA · Environment · Latest available filing year: 2014 · Primary form: IRS Form 990-EZ

  53. Huron Waterloo Pathways Initiative

    EIN 821605735 · Headquarters: ANN ARBOR, MI, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990

  54. Hurricane Athletic Booseter Club

    EIN 471691280 · Headquarters: HURRICANE, UT, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  55. Hurricane Island Outward Bound School

    EIN 046089174 · Headquarters: CAMDEN, ME, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  56. Hurry Hill Maple Farm Museum Association

    EIN 274630216 · Headquarters: EDINBORO, PA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  57. Husbandry Inc

    EIN 992793449 · Headquarters: Austin, TX, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  58. Hussain Foundation Inc

    EIN 852002457 · Headquarters: Chantilly, VA, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  59. Hutan

    EIN 471161856 · Headquarters: DEXTER, MI, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  60. Hutchins Lake Improvement Asssociation

    EIN 382602122 · Headquarters: Fennville, MI, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  61. Hutchinson River Restoration Project

    EIN 263440942 · Headquarters: Bronx, NY, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  62. HVR Foundation

    EIN 820902657 · Headquarters: Sequim, WA, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  63. Hw Harmony Organization

    EIN 992871690 · Headquarters: Fremont, CA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  64. Hwy 97 Community Association Inc

    EIN 820515982 · Headquarters: Coeur d Alene, ID, US · Environment · Latest available filing year: 2010 · Primary form: IRS Form 990-N

  65. Hyattsville Chapter Izaak Walton League of America Inc

    EIN 526044356 · Headquarters: Bowie, MD, US · Environment · Latest available filing year: 2007 · Primary form: IRS Form 990-N

  66. Hyattsville Horticultural Society

    EIN 260871755 · Headquarters: Hyattsville, MD, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  67. Hyde Farm Friends Foundation

    EIN 824603654 · Headquarters: Marietta, GA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  68. Hydro-electrenergy

    EIN 873070756 · Headquarters: BAY SHORE, NY, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  69. Hydro-fi Gambia

    EIN 873238960 · Headquarters: Richmond, TX, US · Environment · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  70. Hydro-geo Workshop

    EIN 825421751 · Headquarters: San Antonio, TX, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  71. Hydro-relief and Water Conservation Resources

    EIN 472968656 · Headquarters: Manassas, VA, US · Environment · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  72. Hydro4life

    EIN 832752582 · Headquarters: DUBLIN, OH, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  73. Hydrofathom Corporation

    EIN 992779286 · Headquarters: San Luis Obispo, CA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  74. Hydrogen Education Council

    EIN 371896014 · Headquarters: Oak Park, CA, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  75. Hydrogen for Clean Air Inc

    EIN 831942598 · Headquarters: Los Angeles, CA, US · Environment · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  76. Hydrogen Fuel Cell Partnership

    EIN 883534257 · Headquarters: W SACRAMENTO, CA, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  77. Hydrogen House Project

    EIN 452325170 · Headquarters: HOPEWELL, NJ, USA · Environment · Latest available filing year: 2023 · Primary form: IRS Form 990

  78. Hydrogen Universe Incorporated

    EIN 270449088 · Headquarters: JUPITER, FL, USA · Environment · Latest available filing year: 2014 · Primary form: IRS Form 990-PF

  79. Hydrologic Research Center

    EIN 330576233 · Headquarters: SAN DIEGO, CA, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  80. Hydrophilanthropy

    EIN 833481058 · Headquarters: Houston, TX, US · Environment · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  81. Hydrothermal Carbon Association

    EIN 993644976 · Headquarters: BOSSIER CITY, LA, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  82. Hyo Jeong International Foundation for Environmental Peace (HJIFEP)

    EIN 821898138 · Headquarters: Washington, DC, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  83. Hyperbaric Vermont Inc

    EIN 300964512 · Headquarters: HARDWICK, VT, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990

  84. Hypha Upcycling

    EIN 882782480 · Headquarters: Colorado Springs, CO, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  85. Hysky Society Corp

    EIN 882447859 · Headquarters: Spring, TX, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  86. I AM

    EIN 320800327 · Headquarters: San Diego, CA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  87. I Am Green Inc

    EIN 844627830 · Headquarters: SAN DIEGO, CA, USA · Environment · Latest available filing year: 2023 · Primary form: IRS Form 990-EZ

  88. I Am My City Parks

    EIN 852115837 · Headquarters: Detroit, MI, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  89. I Am Water Ocean Conservation Foundation

    EIN 473972790 · Headquarters: OCEAN, NJ, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  90. I Come to Talk Story

    EIN 510588120 · Headquarters: OAK HARBOR, WA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  91. I Heart Oakland Alameda Estuary

    EIN 995148552 · Headquarters: Alameda, CA, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  92. I Love A Clean San Diego County Inc

    EIN 952566791 · Headquarters: San Diego, CA, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  93. I Love Rancho Cordova

    EIN 882630363 · Headquarters: RNCHO CORDOVA, CA, US · Environment · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  94. I Nui Ke Aho

    EIN 823207505 · Headquarters: Waialua, HI, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  95. I Ola Wailuanui Inc

    EIN 612064836 · Headquarters: KAPAA, HI, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  96. I Ride to Support

    EIN 922813495 · Headquarters: Portland, OR, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  97. I Want to Mow Your Lawn Inc

    EIN 853447661 · Headquarters: Wayne, NJ, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  98. I-20 Wildlife Preserve & Jenna Welch Nature Study Center

    EIN 261270576 · Headquarters: MIDLAND, TX, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  99. I-85 Corridor Alliance

    EIN 202269791 · Headquarters: Auburn, AL, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  100. Iaap

    EIN 412130701 · Headquarters: Kansas City, MO, US · Environment · Latest available filing year: 2012 · Primary form: IRS Form 990-N

First page and all pages