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. Howard County Master Gardeners Inc

    EIN 752929503 · Headquarters: Big Spring, TX, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  2. Howard Ecoworks Inc

    EIN 812054803 · Headquarters: COLUMBIA, MD, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  3. Howard Lake Watershed Alliance

    EIN 364599372 · Headquarters: Howard Lake, MN, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  4. Howard Lake Waverly After Prom Party

    EIN 411658988 · Headquarters: Howard Lake, MN, US · Environment · Latest available filing year: 2014 · Primary form: IRS Form 990-N

  5. Howard Pond Preservation Association

    EIN 010353283 · Headquarters: Hanover, ME, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  6. Howard T Odum Florida Springs Institute

    EIN 461663401 · Headquarters: High Springs, FL, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  7. Howe Ffa Booster Club

    EIN 365117203 · Headquarters: HOWE, TX, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  8. Howell Conservation Fund Inc

    EIN 842776877 · Headquarters: ATLANTA, GA, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  9. Howell Garden Club

    EIN 813965946 · Headquarters: MASON, MI, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  10. Howell Nature Center

    EIN 474324628 · Headquarters: Howell, MI, US · Environment · Latest available filing year: 2020 · Primary form: IRS Form 990

  11. Howl Nature Company

    EIN 414756603 · Headquarters: Gaylord, MI, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  12. Howser Meadows Inc

    EIN 204684655 · Headquarters: Freeville, NY, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  13. Hoyt Arboretum Friends Foundation

    EIN 930919495 · Headquarters: Portland, OR, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990

  14. Hpmd Foundation

    EIN 263881867 · Headquarters: FREMONT, CA, USA · Environment · Latest available filing year: 2016 · Primary form: IRS Form 990-PF

  15. Hpr Scenic Corridor Coalition

    EIN 731715097 · Headquarters: Austin, TX, US · Environment · Latest available filing year: 2007 · Primary form: IRS Form 990-N

  16. HRCOLA Dante INC

    EIN 332777737 · Headquarters: PINCKNEY, MI, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  17. Hsb Park Inc

    EIN 844349247 · Headquarters: Horseshoe Bay, TX, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990

  18. Hsc Foundation Inc

    EIN 833720710 · Headquarters: Engadine, MI, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  19. Hsmai Chicago

    EIN 333411235 · Headquarters: evanston, IL, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  20. Hua Aina O Honaunau

    EIN 834099921 · Headquarters: Kealakekua, HI, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  21. Huachuca Audubon Society

    EIN 860330188 · Headquarters: Sierra Vista, AZ, US · Environment · Latest available filing year: 2015 · Primary form: IRS Form 990-N

  22. Huachuma Foundation

    EIN 394000144 · Headquarters: New River, AZ, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  23. Huang Lai Family Foundation

    EIN 854271793 · Headquarters: Benicia, CA, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  24. Hub Resource Conservation & Development

    EIN 850385298 · Headquarters: Moriarty, NM, USA · Environment · Latest available filing year: 2010 · Primary form: IRS Form 990-EZ

  25. Hub404 Conservancy Inc

    EIN 822946128 · Headquarters: ATLANTA, GA, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  26. Hubbard Brook Research Foundation

    EIN 020474938 · Headquarters: WOODSTOCK, VT, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  27. Hubbard County Environmental Education Building Board

    EIN 411714770 · Headquarters: PARK RAPIDS, MN, US · Environment · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  28. Hubbard Environmental & Land Preservation

    EIN 201151949 · Headquarters: HUBBARD, OH, USA · Environment · Latest available filing year: 2014 · Primary form: IRS Form 990-EZ

  29. Hubbard Lake Sportsman and Improvement Association

    EIN 386095954 · Headquarters: Hubbard Lake, MI, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  30. Hubbard Springs Garden Club

    EIN 161613295 · Headquarters: Churchville, NY, US · Environment · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  31. Huck Fin an Environmental Education Program

    EIN 330479034 · Headquarters: San Diego, CA, US · Environment · Latest available filing year: 2015 · Primary form: IRS Form 990-N

  32. Hudson Basin River Watch Inc

    EIN 208453027 · Headquarters: Cambridge, NY, US · Environment · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  33. Hudson Bay Project Corporation

    EIN 061448157 · Headquarters: REDDING, CT, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  34. Hudson Center for Community and Environment Inc

    EIN 854356264 · Headquarters: South Salem, NY, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  35. Hudson Garden Club Inc

    EIN 346542336 · Headquarters: HUDSON, OH, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  36. Hudson Highlands Fjord Trail Inc

    EIN 844261224 · Headquarters: Beacon, NY, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  37. Hudson Highlands Land Trust Inc

    EIN 133528266 · Headquarters: Garrison, NY, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  38. Hudson Home and Garden Club

    EIN 391780177 · Headquarters: Hudson, WI, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  39. Hudson Lake Conservation Association Inc

    EIN 262891748 · Headquarters: NEW CARLISLE, IN, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  40. Hudson Mohawk Resource Conservation and Development Council Inc

    EIN 141756539 · Headquarters: Voorheesville, NY, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  41. Hudson Park Children's Greenhouse

    EIN 811290639 · Headquarters: NEW ROCHELLE, NY, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  42. Hudson River Apiary Society

    EIN 474436690 · Headquarters: North Bergen, NJ, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  43. Hudson River Fishermans Association

    EIN 311788307 · Headquarters: CRESSKILL, NJ, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  44. Hudson River Foundation for Science and Environmental Research Inc

    EIN 133089956 · Headquarters: NEW YORK, NY, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  45. Hudson River Sloop Clearwater Inc

    EIN 146049022 · Headquarters: BEACON, NY, USA · Environment · Latest available filing year: 2023 · Primary form: IRS Form 990

  46. Hudson River Waterfront Convervancy of New Jersey Inc

    EIN 521631347 · Headquarters: Jersey City, NJ, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  47. Hudson River Watershed Alliance Inc

    EIN 452772407 · Headquarters: KINGSTON, NY, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990

  48. Hudson River Watertrail Association Inc

    EIN 133649984 · Headquarters: New York, NY, US · Environment · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  49. Hudson Sloop Club Inc

    EIN 471946569 · Headquarters: HUDSON, NY, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990

  50. Hudson Society of Artists

    EIN 460981506 · Headquarters: Hudson, OH, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  51. Hudson Taconic Lands Inc

    EIN 943444825 · Headquarters: Averill Park, NY, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  52. Hudson Urban Gardens Inc

    EIN 141825060 · Headquarters: Hudson, NY, US · Environment · Latest available filing year: 2008 · Primary form: IRS Form 990-N

  53. Hudson Valley Chapter North American Rock Garden Society

    EIN 364678964 · Headquarters: Yonkers, NY, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  54. Hudson Valley Garden Association Inc

    EIN 461340227 · Headquarters: Wallkill, NY, US · Environment · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  55. Hudson Valley Grass Roots Energy & Environmental Net Work Inc

    EIN 222431088 · Headquarters: red hook, NY, US · Environment · Latest available filing year: 2011 · Primary form: IRS Form 990-N

  56. Hudson Valley Materials Exchange Inc

    EIN 141778185 · Headquarters: Washingtonville, NY, US · Environment · Latest available filing year: 2010 · Primary form: IRS Form 990-N

  57. Hudson Valley Paddling Association

    EIN 331889286 · Headquarters: Athens, NY, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  58. Hudson Valley Preservation Conservancy Inc

    EIN 200688343 · Headquarters: Rhinecliff, NY, US · Environment · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  59. Hudsondelaware Chapter of the Society of Environmental Toxicolog

    EIN 222486287 · Headquarters: Allentown, PA, US · Environment · Latest available filing year: 2007 · Primary form: IRS Form 990-N

  60. Hudsonia Limited

    EIN 112587776 · Headquarters: ANNANDALEONHUDSON, NY, USA · Environment · Latest available filing year: 2023 · Primary form: IRS Form 990

  61. Hueco Conservation Corps

    EIN 333697089 · Headquarters: El Paso, TX, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  62. Huerto De La Familia Family Garden

    EIN 043765788 · Headquarters: Eugene, OR, USA · Environment · Latest available filing year: 2021 · Primary form: IRS Form 990-EZ

  63. Huff Creek Watershed Association Incorporated

    EIN 352426919 · Headquarters: CYCLONE, WV, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  64. Huff Run Watershed Restoration Partnership Inc

    EIN 311531070 · Headquarters: Mineral City, OH, US · Environment · Latest available filing year: 2014 · Primary form: IRS Form 990-N

  65. Huger Residents Group

    EIN 871483916 · Headquarters: Huger, SC, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  66. Hugh Platt Garden Club

    EIN 050612394 · Headquarters: Scotia, NY, US · Environment · Latest available filing year: 2016 · Primary form: IRS Form 990-N

  67. Hughson Arboretum and Gardens

    EIN 272140566 · Headquarters: HUGHSON, CA, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  68. Hughsonville & Wheeler Hill Community Association

    EIN 881438842 · Headquarters: Hughsonville, NY, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  69. Hui Aloha Puukapu

    EIN 872611810 · Headquarters: KAMUELA, HI, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  70. Hui Ho Olako for Hawaiian Initiatives

    EIN 834150455 · Headquarters: Hilo, HI, US · Environment · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  71. Hui Kahuwai

    EIN 931834642 · Headquarters: Kailua Kona, HI, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  72. Hui Laulima O Kehaha Kai

    EIN 383677165 · Headquarters: Kailua Kona, HI, US · Environment · Latest available filing year: 2014 · Primary form: IRS Form 990-N

  73. Hui Mahiai Aina

    EIN 822039190 · Headquarters: Waimanalo, HI, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990

  74. Hui Maka Ainana O Makana

    EIN 990344133 · Headquarters: Hanalei, HI, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  75. Hui Nehu

    EIN 932016756 · Headquarters: Kihei, HI, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  76. Hui O Koolaupoko

    EIN 261760086 · Headquarters: Kailua, HI, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  77. Hui O Na Wai Eha

    EIN 300338130 · Headquarters: Wailuku, HI, US · Environment · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  78. Hui Okika O Kunia

    EIN 800457580 · Headquarters: Mililani, HI, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  79. Huisingh Family Foundation

    EIN 934459811 · Headquarters: FULTON, IL, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990

  80. Hulda Klager Lilac Gardens

    EIN 510192908 · Headquarters: Woodland, WA, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  81. Huli Hawaii Inc

    EIN 831269957 · Headquarters: Honolulu, HI, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  82. Huliauapaa

    EIN 455486637 · Headquarters: HAKALAU, HI, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  83. Hull Community Garden

    EIN 812275900 · Headquarters: Hull, MA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  84. Hull Land Conservation Trust

    EIN 020800781 · Headquarters: Hull, MA, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  85. Hull-daisetta Neighborhood Enhancement Team Hd Neat

    EIN 853665479 · Headquarters: Daisetta, TX, US · Environment · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  86. Hulmeville Conservation

    EIN 922339901 · Headquarters: Hulmeville, PA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  87. Hulsey Little River Trust

    EIN 260663494 · Headquarters: Andalusia, AL, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  88. Human Access Project

    EIN 460958790 · Headquarters: Portland, OR, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  89. Human Energy Initiatives Inc

    EIN 452914608 · Headquarters: ZIONSVILLE, IN, USA · Environment · Latest available filing year: 2016 · Primary form: IRS Form 990-EZ

  90. Human Heritage Foundation Inc

    EIN 873379474 · Headquarters: Alpharetta, GA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  91. Human Impacts Institute Inc

    EIN 452589652 · Headquarters: Brooklyn, NY, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990

  92. Human Resources Forum Inc

    EIN 861247582 · Headquarters: Lake Lotawana, MO, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  93. Humane Education Advocates Reaching Teachers

    EIN 412055310 · Headquarters: MAMARONECK, NY, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  94. Humane Water Corporation

    EIN 262558741 · Headquarters: Wichita, KS, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  95. Humanity Unleashed Inc

    EIN 473176626 · Headquarters: Austin, TX, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  96. Humans Everywhere Real Organic Incorporated

    EIN 392421845 · Headquarters: Canton, MS, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  97. Humans for Oceans Inc 81

    EIN 474584802 · Headquarters: ESSEX, MA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  98. Humboldt Bay Center for Sustainable Living

    EIN 261104153 · Headquarters: Arcata, CA, US · Environment · Latest available filing year: 2011 · Primary form: IRS Form 990-N

  99. Humboldt Botanical Gardens Foundation

    EIN 680243631 · Headquarters: EUREKA, CA, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  100. Humboldt Countyprescribed Burn Association

    EIN 830694143 · Headquarters: Eureka, CA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

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