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. Institute of Professional Environmental Practice

    EIN 251712581 · Headquarters: Lansing, MI, USA · Environment · Latest available filing year: 2018 · Primary form: IRS Form 990-EZ

  2. Institute of Regeneration Inc

    EIN 462608660 · Headquarters: High Falls, NY, USA · Environment · Latest available filing year: 2023 · Primary form: IRS Form 990-EZ

  3. Institute of Sustainable Connections

    EIN 851340923 · Headquarters: CORAL GABLES, FL, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  4. Institute of the Rockies

    EIN 237368583 · Headquarters: corvallis, MT, US · Environment · Latest available filing year: 2015 · Primary form: IRS Form 990-N

  5. Institute of Tribology and Coatings

    EIN 810648827 · Headquarters: Sugar Grove, IL, USA · Environment · Latest available filing year: 2014 · Primary form: IRS Form 990

  6. Instituteofmanagementaccountantsinc

    EIN 237353194 · Headquarters: SHELTON, CT, US · Environment · Latest available filing year: 2016 · Primary form: IRS Form 990-N

  7. Instream Flow Council Inc

    EIN 383354089 · Headquarters: Montrose, CO, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  8. Instruments 4 Change

    EIN 992724125 · Headquarters: Alexandria, VA, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  9. Insulators Local 112

    EIN 720457201 · Headquarters: KENNER, LA, USA · Environment · Latest available filing year: 2022 · Primary form: IRS Form 990

  10. Int'l Union for Conservation of Nature & Natural Resources - Us

    EIN 521443147 · Headquarters: WASHINGTON, DC, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990

  11. Integral Scientific Institute

    EIN 474371594 · Headquarters: Dallas, TX, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  12. Integrated Agriculture Network

    EIN 562423518 · Headquarters: Laupahoehoe, HI, US · Environment · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  13. Integrated Horticultural Therapy Services

    EIN 462396910 · Headquarters: Huron, OH, US · Environment · Latest available filing year: 2015 · Primary form: IRS Form 990-N

  14. Integrated Solutions Fund Inc

    EIN 991465704 · Headquarters: College Park, GA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  15. Integrated Vegetation Management (IVM) Partners

    EIN 200130121 · Headquarters: Newark, DE, United States · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990

  16. Integrity in Natural Resources

    EIN 680280393 · Headquarters: Sebastopol, CA, US · Environment · Latest available filing year: 2011 · Primary form: IRS Form 990-N

  17. Intel Oregon Employee Garden Club

    EIN 272755345 · Headquarters: Hillsboro, OR, US · Environment · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  18. Intemerate Earth

    EIN 871401735 · Headquarters: SAN GABRIEL, CA, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  19. Interchange Institute

    EIN 411783463 · Headquarters: Finlayson, MN, US · Environment · Latest available filing year: 2015 · Primary form: IRS Form 990-N

  20. Interdisciplinary Environmental Associat C/o Dr Demetri Kantarelis

    EIN 812804603 · Headquarters: WORCESTER, MA, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  21. Interfaith Coalition for the Environment

    EIN 522127265 · Headquarters: Greenbelt, MD, US · Environment · Latest available filing year: 2013 · Primary form: IRS Form 990-N

  22. Interfaith Community for the Earth Inc

    EIN 274832504 · Headquarters: Almond, WI, US · Environment · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  23. Interfaith Partners for the Chesapeake Inc

    EIN 463399793 · Headquarters: ANNAPOLIS, MD, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  24. Interfaith Works

    EIN 200016425 · Headquarters: Kutztown, PA, US · Environment · Latest available filing year: 2008 · Primary form: IRS Form 990-N

  25. Interior Alaska Gold Prospectors Association of America Chapter

    EIN 463977615 · Headquarters: Fairbanks, AK, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  26. Interior Alaska Land Trust

    EIN 920156596 · Headquarters: Fairbanks, AK, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990

  27. Interlace Commons Inc

    EIN 823600860 · Headquarters: BRISTOL, VT, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  28. Intermediate Lake Association

    EIN 205675156 · Headquarters: Central Lake, MI, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  29. Intermezzo Gardens Foundation

    EIN 206590780 · Headquarters: PEWAUKEE, WI, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  30. Intermountain Conservation Trust

    EIN 850482726 · Headquarters: Cedar Crest, NM, US · Environment · Latest available filing year: 2012 · Primary form: IRS Form 990-N

  31. Intermountain Forest Association

    EIN 820308279 · Headquarters: COEUR DALENE, ID, USA · Environment · Latest available filing year: 2011 · Primary form: IRS Form 990-EZ

  32. Intermountain Native Plant Growers Association

    EIN 200410892 · Headquarters: Salt Lake City, UT, US · Environment · Latest available filing year: 2007 · Primary form: IRS Form 990-N

  33. International Alliance of Violin and Bow Makers for Endangered Spec

    EIN 871071837 · Headquarters: Huntington, NY, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  34. International Aroid Plant Society Inc

    EIN 992040644 · Headquarters: MIAMI, FL, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990

  35. International Assn of Heat & Frost

    EIN 356041330 · Headquarters: FORT WAYNE, IN, USA · Environment · Latest available filing year: 2010 · Primary form: IRS Form 990

  36. International Association for Human Resource Information Management In

    EIN 943064786 · Headquarters: Burlington, MA, US · Environment · Latest available filing year: 2008 · Primary form: IRS Form 990-N

  37. International Association for Hydrogen Energy Inc

    EIN 510189699 · Headquarters: Miami, FL, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990

  38. International Association for Impact Assessment Inc

    EIN 581433922 · Headquarters: FARGO, ND, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  39. International Association for Near-death Studies Inc

    EIN 061050150 · Headquarters: DURHAM, NC, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  40. International Association for Vegetation Science

    EIN 472411429 · Headquarters: NEWARK, DE, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  41. International Association of Administrative Professionals

    EIN 134338157 · Headquarters: Ashaway, RI, US · Environment · Latest available filing year: 2010 · Primary form: IRS Form 990-N

  42. International Association of Administrative Professionals

    EIN 237038074 · Headquarters: Woodbridge, NJ, US · Environment · Latest available filing year: 2008 · Primary form: IRS Form 990-N

  43. International Association of Administrative Professionals

    EIN 310896578 · Headquarters: Dixon, KY, US · Environment · Latest available filing year: 2008 · Primary form: IRS Form 990-N

  44. International Association of Administrative Professionals

    EIN 341561349 · Headquarters: Mentor, OH, US · Environment · Latest available filing year: 2012 · Primary form: IRS Form 990-N

  45. International Association of Administrative Professionals

    EIN 346548787 · Headquarters: Brecksville, OH, US · Environment · Latest available filing year: 2012 · Primary form: IRS Form 990-N

  46. International Association of Administrative Professionals

    EIN 383703959 · Headquarters: Birmingham, AL, US · Environment · Latest available filing year: 2013 · Primary form: IRS Form 990-N

  47. International Association of Administrative Professionals

    EIN 411980836 · Headquarters: Glencoe, MN, US · Environment · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  48. International Association of Administrative Professionals

    EIN 510415744 · Headquarters: Atlanta, GA, US · Environment · Latest available filing year: 2013 · Primary form: IRS Form 990-N

  49. International Association of Administrative Professionals

    EIN 510586527 · Headquarters: Salem, MA, US · Environment · Latest available filing year: 2008 · Primary form: IRS Form 990-N

  50. International Association of Administrative Professionals

    EIN 593687757 · Headquarters: Lake Mary, FL, US · Environment · Latest available filing year: 2008 · Primary form: IRS Form 990-N

  51. International Association of Administrative Professionals

    EIN 731583114 · Headquarters: Stillwater, OK, US · Environment · Latest available filing year: 2008 · Primary form: IRS Form 990-N

  52. International Association of Administrative Professionals

    EIN 753213733 · Headquarters: Prior Lake, MN, US · Environment · Latest available filing year: 2008 · Primary form: IRS Form 990-N

  53. International Association of Adminstrative Professionals

    EIN 593564630 · Headquarters: Ocoee, FL, US · Environment · Latest available filing year: 2013 · Primary form: IRS Form 990-N

  54. International Association of Forensic Nurses

    EIN 341911737 · Headquarters: Elkridge, MD, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  55. International Association of Heat & Frost Insulators & Allied Workers

    EIN 560897642 · Headquarters: PINSON, AL, US · Environment · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  56. International Association of Japanese Gardens Inc

    EIN 931065341 · Headquarters: Beaverton, OR, US · Environment · Latest available filing year: 2013 · Primary form: IRS Form 990-N

  57. International Association of Lions Clubs

    EIN 320285956 · Headquarters: Bronx, NY, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  58. International Association of Meteorology and Atmospheric Sciences

    EIN 874151202 · Headquarters: MADISON, WI, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  59. International Association of Sport and Play for Young Children

    EIN 822626621 · Headquarters: Hamden, CT, US · Environment · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  60. International Biochar Initiative

    EIN 562675394 · Headquarters: Norfolk, VA, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  61. International Bioexploration Society Inc

    EIN 261676161 · Headquarters: NEW BRUNSWICK, NJ, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  62. International Biogeography Society Inc

    EIN 760702796 · Headquarters: Topeka, KS, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  63. International Carbon Market Institute

    EIN 332759590 · Headquarters: Leesburg, VA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  64. International Carnivorous Plant Society

    EIN 912132312 · Headquarters: WALNUT CREEK, CA, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  65. International Center for Sustainability Inc

    EIN 352311421 · Headquarters: WALTERBORO, SC, USA · Environment · Latest available filing year: 2016 · Primary form: IRS Form 990-EZ

  66. International Center for Technology Assessment

    EIN 471955648 · Headquarters: San Francisco, CA, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  67. International Centre for Research in Agroforestry

    EIN 311567778 · Headquarters: NAIROBI, VA, KE · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  68. International Cesarean Awareness Network

    EIN 272127363 · Headquarters: Poplar Grove, IL, US · Environment · Latest available filing year: 2013 · Primary form: IRS Form 990-N

  69. International Cesarean Awareness Network

    EIN 273349431 · Headquarters: West Jordan, UT, US · Environment · Latest available filing year: 2012 · Primary form: IRS Form 990-N

  70. International Cesarean Awareness Network

    EIN 455247879 · Headquarters: Savannah, GA, US · Environment · Latest available filing year: 2013 · Primary form: IRS Form 990-N

  71. International Clean Water Institute Inc

    EIN 863932809 · Headquarters: Manassas, VA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  72. International Climate Change Partnership

    EIN 541596101 · Headquarters: Arlington, VA, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  73. International Communities for the Renewal of the Earth Inc

    EIN 061351044 · Headquarters: Cross River, NY, US · Environment · Latest available filing year: 2013 · Primary form: IRS Form 990-N

  74. International Conservation Caucus Foundation

    EIN 830449176 · Headquarters: WASHINGTON, DC, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  75. International Conservation Foundation

    EIN 863722933 · Headquarters: Riverside, CA, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  76. International Conservation Fund Corp

    EIN 834647086 · Headquarters: Boston, MA, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990

  77. International Consortium of Environmental History Organization

    EIN 460962950 · Headquarters: Durham, NC, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  78. International Consultative Policy Institute for the European Union

    EIN 872005735 · Headquarters: NEW YORK, NY, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  79. International Consulting Business

    EIN 861237302 · Headquarters: Lemon Grove, CA, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  80. International Cooperation of Environmental Youth Inc

    EIN 271009541 · Headquarters: Canton, MS, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  81. International Council on Environmental Economics and Development Research Ltd

    EIN 934108201 · Headquarters: NEW YORK, NY, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  82. International Court of the Environment Coalition

    EIN 272065069 · Headquarters: SAN RAFAEL, CA, US · Environment · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  83. International Creek Conversancy Inc

    EIN 202333350 · Headquarters: Williamstown, KY, US · Environment · Latest available filing year: 2013 · Primary form: IRS Form 990-N

  84. International Energy Initiative Inc C/o Eric Larson

    EIN 133634652 · Headquarters: PRINCETON, NJ, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  85. International Energy Program Evaluation Conference

    EIN 264392451 · Headquarters: MADISON, WI, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  86. International Environmental Communication Association

    EIN 274461017 · Headquarters: Cincinnati, OH, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  87. International Environmental Management Services Ltd

    EIN 391731193 · Headquarters: Santa Fe, NM, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  88. International Environmental Research Foundation

    EIN 061602967 · Headquarters: Jersey City, NJ, USA · Environment · Latest available filing year: 2023 · Primary form: IRS Form 990-EZ

  89. International Environmental Resource Collaboration Center Inc

    EIN 550804388 · Headquarters: Schenectady, NY, USA · Environment · Latest available filing year: 2015 · Primary form: IRS Form 990-EZ

  90. International Erosion Control Association

    EIN 364572121 · Headquarters: DeKalb, IL, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  91. International Erosion Control Association

    EIN 942581002 · Headquarters: AURORA, CO, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  92. International Erosion Control Association Great Rivers Chapter

    EIN 911815101 · Headquarters: Lees Summit, MO, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  93. International Federation of Landscape Architects Americas Regi

    EIN 923865215 · Headquarters: Washington DC, DC, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  94. International Foundation for the Conservation of Natural Resources

    EIN 541746221 · Headquarters: RICHMOND, VA, USA · Environment · Latest available filing year: 2018 · Primary form: IRS Form 990-PF

  95. International Game Fish Tournament Observers

    EIN 270841651 · Headquarters: PENSACOLA, FL, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  96. International Green Industry Hall of Fame

    EIN 263378277 · Headquarters: Los Angeles, CA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  97. International Hope

    EIN 431956454 · Headquarters: Glendale, AZ, US · Environment · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  98. International Humic Substances Society

    EIN 411764948 · Headquarters: St Paul, MN, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  99. International Indigenous Youth Conl

    EIN 832138984 · Headquarters: Denver, CO, USA · Environment · Latest available filing year: 2022 · Primary form: IRS Form 990-EZ

  100. International Institute of Bengal Basin

    EIN 200237963 · Headquarters: Berkeley, CA, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

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