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. Overton Heritage Foundation

    EIN 845126070 · Headquarters: Overton, TX, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  2. Owamniyomni Okhodayapi

    EIN 811716095 · Headquarters: MINNEAPOLIS, MN, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  3. Owasco Flats Nature Reserve Inc

    EIN 161549003 · Headquarters: MORAVIA, NY, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  4. Owasco Lake Watershed Management Council

    EIN 800721962 · Headquarters: AUBURN, NY, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990

  5. Owasco Valley Audubon Society

    EIN 651265157 · Headquarters: CAYUGA, NY, US · Environment · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  6. Owashtanong Islands Audubon Society

    EIN 383038904 · Headquarters: Holland, MI, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  7. Owasso Bouquet of Gardeners

    EIN 753130976 · Headquarters: Owasso, OK, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  8. Owen County Garden Club

    EIN 331447329 · Headquarters: Poland, IN, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  9. Owensville Cemetery West Association

    EIN 994514639 · Headquarters: Franklin, TX, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  10. Owl Creek Conservancy

    EIN 311696161 · Headquarters: MOUNT VERNON, OH, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990

  11. Owl Mountain Partnership

    EIN 201481796 · Headquarters: Walden, CO, USA · Environment · Latest available filing year: 2018 · Primary form: IRS Form 990-EZ

  12. Owl S Edge Inc

    EIN 205974582 · Headquarters: San Diego, CA, US · Environment · Latest available filing year: 2011 · Primary form: IRS Form 990-N

  13. Owls

    EIN 870911724 · Headquarters: San Francisco, CA, US · Environment · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  14. Owls Head Garden Club

    EIN 474923690 · Headquarters: OWLS HEAD, ME, US · Environment · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  15. Owyhee Cattlemans Heritage Foundation Inc

    EIN 820533272 · Headquarters: MURPHY, ID, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  16. Owyhee Defense Fund

    EIN 475003620 · Headquarters: JORDAN VALLEY, OR, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  17. Owyhee Gardeners Inc

    EIN 454643025 · Headquarters: Caldwell, ID, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  18. Oxbow Inc

    EIN 311187631 · Headquarters: Lawrenceburg, IN, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  19. Oxbow Lake Association Inc

    EIN 392042159 · Headquarters: Presque Isle, WI, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  20. Oxbow of Indiana Inc

    EIN 311390071 · Headquarters: Lawrenceburg, IN, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  21. Oxford Hills Community Gardens

    EIN 272720573 · Headquarters: NORWAY, ME, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  22. Oxford Main Street Project Corporation

    EIN 830807750 · Headquarters: OXFORD, CT, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  23. Oxygen Project Inc

    EIN 823745667 · Headquarters: ATLANTA, GA, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  24. Oxygen Seven Reforestation Inc

    EIN 842983655 · Headquarters: MIAMI, FL, US · Environment · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  25. Oyster Boys Conservation Inc

    EIN 920319266 · Headquarters: Sarasota, FL, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  26. Oyster Culture Foundation

    EIN 331957107 · Headquarters: Santa Rosa, CA, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  27. Oyster Lake Preservation Society

    EIN 863045229 · Headquarters: Santa Rosa Beach, FL, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  28. Oyster Pond Environmental Trust Inc

    EIN 043278142 · Headquarters: WOODS HOLE, MA, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990

  29. Oyster Reef Keepers of Virginia Inc

    EIN 542069776 · Headquarters: Virginia Beach, VA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  30. Oyster River Ecology Inc

    EIN 884362329 · Headquarters: WIMAUMA, FL, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990

  31. Oyster River Watershed Association

    EIN 753025898 · Headquarters: MADBURY, NH, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  32. Oysters Forever Inc

    EIN 821220041 · Headquarters: Gloucester, VA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  33. Ozark Cave Diving Alliance

    EIN 208172102 · Headquarters: Broken Arrow, OK, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  34. Ozark Ecological Restoration Inc

    EIN 810630525 · Headquarters: SILOAM SPRINGS, AR, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  35. Ozark Fly Fishers Inc

    EIN 272899342 · Headquarters: Saint Louis, MO, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  36. Ozark Foothills Resource Conservation and Development Proje

    EIN 581755212 · Headquarters: Newport, AR, US · Environment · Latest available filing year: 2012 · Primary form: IRS Form 990-N

  37. Ozark Greenways Inc

    EIN 431525122 · Headquarters: SPRINGFIELD, MO, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  38. Ozark Isle Nature Preserve Inc

    EIN 934282781 · Headquarters: OAKLAND, AR, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  39. Ozark Recycling Enterprise Inc

    EIN 581795674 · Headquarters: Clinton, AR, US · Environment · Latest available filing year: 2011 · Primary form: IRS Form 990-N

  40. Ozark Regional Land Trust Inc Dba Ozark Land Trust

    EIN 431304715 · Headquarters: COLUMBIA, MO, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  41. Ozark Society Foundation

    EIN 510170417 · Headquarters: Little Rock, AR, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  42. Ozark Society Inc

    EIN 237298839 · Headquarters: Fayetteville, AR, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  43. Ozark Tracker Society

    EIN 412266987 · Headquarters: Fayetteville, AR, US · Environment · Latest available filing year: 2015 · Primary form: IRS Form 990-N

  44. Ozark Trail Association

    EIN 760721119 · Headquarters: Potosi, MO, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  45. Ozark Woodland Owners Association

    EIN 710822607 · Headquarters: Batesville, AR, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  46. Ozarks Clean Water Company

    EIN 201206810 · Headquarters: KIMBERLING CITY, MO, USA · Environment · Latest available filing year: 2016 · Primary form: IRS Form 990

  47. Ozarks Environmental Services Inc

    EIN 811616678 · Headquarters: KIMBERLING CITY, MO, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  48. Ozaukee Master Gardners

    EIN 810554096 · Headquarters: GRAFTON, WI, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  49. Ozioma Hope for Wellness Corporation

    EIN 800461564 · Headquarters: STOUGHTON, MA, USA · Environment · Latest available filing year: 2019 · Primary form: IRS Form 990-EZ

  50. Ozone Social Pleasure Klub Inc

    EIN 721122298 · Headquarters: Mandeville, LA, USA · Environment · Latest available filing year: 2011 · Primary form: IRS Form 990

  51. Ozoneplus

    EIN 921985280 · Headquarters: Ashburn, VA, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  52. P L D A Inc

    EIN 451267871 · Headquarters: New Braunfels, TX, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  53. P W Y C Land Co Inc

    EIN 112046099 · Headquarters: Port Washington, NY, US · Environment · Latest available filing year: 2010 · Primary form: IRS Form 990-N

  54. P1 Marine Foundation Corp

    EIN 933528464 · Headquarters: BELLEVIEW, FL, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  55. P3 Cares Inc

    EIN 933541537 · Headquarters: Davidson, NC, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  56. P4c Paddle Club Inc

    EIN 811804551 · Headquarters: Warsaw, IN, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  57. Pa Biomass Energy Association

    EIN 454036016 · Headquarters: MEADVILLE, PA, US · Environment · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  58. Pa Cleanways

    EIN 251711795 · Headquarters: Somerset, PA, US · Environment · Latest available filing year: 2008 · Primary form: IRS Form 990-N

  59. Pa Cleanways

    EIN 251792877 · Headquarters: Greensburg, PA, US · Environment · Latest available filing year: 2007 · Primary form: IRS Form 990-N

  60. Pa Cleanways

    EIN 251862233 · Headquarters: Greensburg, PA, US · Environment · Latest available filing year: 2011 · Primary form: IRS Form 990-N

  61. Pa Cleanways Inc

    EIN 251645291 · Headquarters: GREENSBURG, PA, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  62. Pa Cleanways of Allegheny County Inc

    EIN 203033220 · Headquarters: ETNA, PA, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  63. Pa Cleanways of Butler-lawrence Counties

    EIN 251701450 · Headquarters: New Castle, PA, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  64. Pa Coalition of Local Energy Efficiency Contractors Inc

    EIN 861690362 · Headquarters: Carlisle, PA, US · Environment · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  65. Pa Gardens Inc

    EIN 333415440 · Headquarters: Kennett Square, PA, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  66. PA Wilds Center

    EIN 463974077 · Headquarters: Kane, PA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990

  67. Paa Pono Milolii

    EIN 300209770 · Headquarters: CAPTAIN COOK, HI, USA · Environment · Latest available filing year: 2023 · Primary form: IRS Form 990

  68. Paani

    EIN 832222109 · Headquarters: Ypsilanti, MI, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990

  69. Pacama a Conservation Collaborative Inc

    EIN 881616080 · Headquarters: OLIVEBRIDGE, NY, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  70. Pacers Inc

    EIN 237182961 · Headquarters: Tequesta, FL, USA · Environment · Latest available filing year: 2017 · Primary form: IRS Form 990-EZ

  71. Pachaug Pond Weed Control Association Inc

    EIN 822067695 · Headquarters: JEWETT CITY, CT, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  72. Pacific Alliance for Conservation and the Environment

    EIN 270078473 · Headquarters: ROLLING HILLS ESTATES, CA, US · Environment · Latest available filing year: 2010 · Primary form: IRS Form 990-N

  73. Pacific American Foundation Hawaii Inc

    EIN 472621483 · Headquarters: KAILUA, HI, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  74. Pacific Bamboo Resources

    EIN 271504824 · Headquarters: seattle, WA, US · Environment · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  75. Pacific Basin Consortium for Environment and Health

    EIN 993946542 · Headquarters: Baton Rouge, LA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  76. Pacific Beach Coalition

    EIN 831241456 · Headquarters: Pacifica, CA, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  77. Pacific Biodiversity Institute

    EIN 311602392 · Headquarters: Twisp, WA, USA · Environment · Latest available filing year: 2017 · Primary form: IRS Form 990

  78. Pacific Blue Foundation

    EIN 562476116 · Headquarters: LA JOLLA, CA, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  79. Pacific Bonsai Club

    EIN 955003040 · Headquarters: Honolulu, HI, US · Environment · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  80. Pacific Bulb Society Inc

    EIN 472708584 · Headquarters: LEONIA, NJ, US · Environment · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  81. Pacific Central Judging Center

    EIN 270460265 · Headquarters: San Leandro, CA, US · Environment · Latest available filing year: 2012 · Primary form: IRS Form 990-N

  82. Pacific City Dorymens Association

    EIN 562438998 · Headquarters: PACIFIC CITY, OR, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  83. Pacific Coast Conservation Alliance

    EIN 770630225 · Headquarters: Paso Robles, CA, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  84. Pacific Coast Environmental Conservancy

    EIN 262030937 · Headquarters: Montebello, CA, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  85. Pacific Coast Fish Wildlife & Wetlands Restoration Association

    EIN 680259824 · Headquarters: ARCATA, CA, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  86. Pacific Coast Ob & Gyn Society

    EIN 911054171 · Headquarters: CORVALLIS, OR, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  87. Pacific Coast Salmon Coalition

    EIN 911519025 · Headquarters: FORKS, WA, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990

  88. Pacific Crest Alliance

    EIN 462255128 · Headquarters: Reno, NV, US · Environment · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  89. Pacific Currents Inc

    EIN 332837250 · Headquarters: Bandon, OR, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  90. Pacific Energy Institute

    EIN 911190090 · Headquarters: Seattle, WA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  91. Pacific Environment and Resources Center

    EIN 942628924 · Headquarters: SAN FRANCISCO, CA, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  92. Pacific Environmental Coalition

    EIN 843138671 · Headquarters: CHICAGO, IL, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  93. Pacific Fishery Management Council

    EIN 910982918 · Headquarters: PORTLAND, OR, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  94. Pacific Forest & Watershed Lands Stewardship Council

    EIN 201358125 · Headquarters: ORANGEVALE, CA, USA · Environment · Latest available filing year: 2023 · Primary form: IRS Form 990-PF

  95. Pacific Grove Cares

    EIN 994737679 · Headquarters: Pacific Grove, CA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  96. Pacific Horticulture Society

    EIN 941684498 · Headquarters: BERKELEY, CA, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  97. Pacific Islands Conservation Research Association

    EIN 200676257 · Headquarters: Columbia, MO, US · Environment · Latest available filing year: 2015 · Primary form: IRS Form 990-N

  98. Pacific Materials Exchange

    EIN 911446676 · Headquarters: Spokane, WA, US · Environment · Latest available filing year: 2016 · Primary form: IRS Form 990-N

  99. Pacific Mountain Institute

    EIN 263724009 · Headquarters: SALT LAKE CITY, UT, USA · Environment · Latest available filing year: 2012 · Primary form: IRS Form 990-EZ

  100. Pacific Northwest Chapter-american Bamboo Society

    EIN 911895225 · Headquarters: Portland, OR, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N

First page and all pages