Environment nonprofits in Colorado

Environment nonprofits in Colorado. Browse 1,078 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. Historic Pines Ranch Preservation Association

    EIN 823268008 · Headquarters: WESTCLIFFE, CO, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  2. Hl266 Lateral Corporation

    EIN 991828225 · Headquarters: Grand Junction, CO, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  3. Hoe and Hope Garden Club Inc

    EIN 274806125 · Headquarters: Longmont, CO, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  4. Hundredgivers

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

  5. Hypha Upcycling

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

  6. Iclei - Local Governments for Sustainability USA Inc

    EIN 043116623 · Headquarters: DENVER, CO, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  7. Incipient Inc

    EIN 850584581 · Headquarters: Lafayette, CO, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  8. Incline Friends

    EIN 900752919 · Headquarters: Colorado Springs, CO, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  9. Indigenous Cultural Conservation Society Inc

    EIN 464332452 · Headquarters: Grover, CO, US · Environment · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  10. Indigo V Expeditions

    EIN 474351030 · Headquarters: Denver, CO, US · Environment · Latest available filing year: 2016 · Primary form: IRS Form 990-N

  11. Infinite West Inc

    EIN 272485270 · Headquarters: GRANBY, CO, US · Environment · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  12. Information Network for Responsible Mining Inc

    EIN 841610660 · Headquarters: Lyons, CO, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  13. Initiatives for Creativity and Peace

    EIN 841563358 · Headquarters: Jamestown, CO, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  14. Institute for Nature and Leadership

    EIN 412121340 · Headquarters: Manitou Springs, CO, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  15. Institute for Social and Environmental Transition- International

    EIN 841419302 · Headquarters: Boulder, CO, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  16. Instream Flow Council Inc

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

  17. International Erosion Control Association

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

  18. International Indigenous Youth Conl

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

  19. International Youth Conservation Coalition

    EIN 834632602 · Headquarters: EDWARDS, CO, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  20. Into the Sea

    EIN 842687103 · Headquarters: ENGLEWOOD, CO, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  21. Ithaka Housing

    EIN 742186914 · Headquarters: Colorado Springs, CO, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990

  22. Ix Power Foundation

    EIN 461094485 · Headquarters: Golden, CO, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  23. Izaak Walton League of America

    EIN 846037630 · Headquarters: Colorado Springs, CO, US · Environment · Latest available filing year: 2007 · Primary form: IRS Form 990-N

  24. Izaak Walton League of America Inc

    EIN 840952040 · Headquarters: Trinidad, CO, US · Environment · Latest available filing year: 2007 · Primary form: IRS Form 990-N

  25. Jacob Hoover Cowen Herbarium Inc

    EIN 263339058 · Headquarters: HOTCHKISS, CO, US · Environment · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  26. Jacobs Well

    EIN 473032964 · Headquarters: Colorado Springs, CO, US · Environment · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  27. Jeffco Open Space Foundation Inc

    EIN 841471616 · Headquarters: Golden, CO, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990

  28. Juniper Initiative

    EIN 842461260 · Headquarters: Livermore, CO, USA · Environment · Latest available filing year: 2021 · Primary form: IRS Form 990-EZ

  29. Kalon Farms

    EIN 861984129 · Headquarters: Centennial, CO, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  30. Kawanee Gardens Irrigation Co

    EIN 900956380 · Headquarters: Lakewood, CO, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  31. Kay Electronics Recycling Llc

    EIN 880579079 · Headquarters: Denver, CO, US · Environment · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  32. Kdad Black Hills Ce

    EIN 821188571 · Headquarters: BOULDER, CO, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  33. Keep Colorado Beautiful 1876

    EIN 392276147 · Headquarters: FORT COLLINS, CO, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  34. Keep Colorado Springs Beautiful Inc

    EIN 841173852 · Headquarters: Colorado Springs, CO, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  35. Keep Mo Heights Rural

    EIN 853069977 · Headquarters: Carbondale, CO, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  36. Keep Pueblo Beautiful Association

    EIN 237089087 · Headquarters: PUEBLO, CO, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  37. Keep Routt Wild Inc

    EIN 833842939 · Headquarters: STEAMBOAT SPRINGS, CO, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  38. Keep Thornton Beautiful a Colorado Nonprofit Corporation

    EIN 263360908 · Headquarters: Thornton, CO, US · Environment · Latest available filing year: 2017 · Primary form: IRS Form 990-N

  39. Keystone Center

    EIN 840688506 · Headquarters: KEYSTONE, CO, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990

  40. Keystone Ecosystems Initiative

    EIN 920848461 · Headquarters: SALIDA, CO, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  41. Kingfisher Wild Land Trust Inc

    EIN 921309702 · Headquarters: SILVERTON, CO, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  42. Koscove Agricultural Learning Center

    EIN 991319124 · Headquarters: Gardner, CO, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  43. La Plata Open Space Conservancy

    EIN 841204273 · Headquarters: Durango, CO, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  44. La Reserva Forest Foundation Inc

    EIN 205662094 · Headquarters: Boulder, CO, US · Environment · Latest available filing year: 2007 · Primary form: IRS Form 990-N

  45. La Veta Beautification Inc

    EIN 934461691 · Headquarters: La Veta, CO, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  46. La Veta Trails Incorporated

    EIN 473405188 · Headquarters: La Veta, CO, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  47. Lake County High Riders Snow Trails Association

    EIN 463742596 · Headquarters: Leadville, CO, US · Environment · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  48. Lake Fork Valley Conservancy

    EIN 841487921 · Headquarters: LAKE CITY, CO, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990

  49. Lake George Community Associtaion

    EIN 432024363 · Headquarters: Lake George, CO, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  50. Lance Ramsay Raymond Foundation

    EIN 843869054 · Headquarters: DENVER, CO, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  51. Land Use Coalition

    EIN 841503056 · Headquarters: Boulder, CO, US · Environment · Latest available filing year: 2016 · Primary form: IRS Form 990-N

  52. Land Use Resource Center

    EIN 841226087 · Headquarters: Boulder, CO, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  53. Laundry Turtle Foundation

    EIN 365105384 · Headquarters: LAKEWOOD, CO, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  54. Lc Real Estate Group Foundation

    EIN 834720478 · Headquarters: LOVELAND, CO, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  55. Learning by Doing Inc

    EIN 301176284 · Headquarters: HOT SULPHUR SPRINGS, CO, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  56. Leave No Trace Center for Outdoor Ethics

    EIN 841303335 · Headquarters: BOULDER, CO, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990

  57. Lee Lateral Ditch Company

    EIN 810757789 · Headquarters: Wheat Ridge, CO, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  58. Legacy Land Trust

    EIN 841277019 · Headquarters: Lakewood, CO, USA · Environment · Latest available filing year: 2015 · Primary form: IRS Form 990

  59. Life Abd Environment Sustainable Management and Improvement Org

    EIN 260108539 · Headquarters: DENVER, CO, US · Environment · Latest available filing year: 2010 · Primary form: IRS Form 990-N

  60. Life Tree Learning Systems

    EIN 452931920 · Headquarters: Denver, CO, US · Environment · Latest available filing year: 2012 · Primary form: IRS Form 990-N

  61. Light Co2

    EIN 844891036 · Headquarters: Denver, CO, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  62. Lighthawk

    EIN 840852104 · Headquarters: GRAND JUNCTION, CO, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  63. Lighthouse Reef Research Repository Limited

    EIN 332955124 · Headquarters: Fort Collins, CO, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  64. Little Thompson Watershed Coalition

    EIN 810761335 · Headquarters: BERTHOUD, CO, US · Environment · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  65. Littleton Crabapple Trail Inc

    EIN 320380509 · Headquarters: Littleton, CO, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  66. Littleton Garden Club

    EIN 840935097 · Headquarters: Littleton, CO, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  67. Living Electricity Institute

    EIN 813731706 · Headquarters: Louisville, CO, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  68. Living with Harmony Inc

    EIN 462043974 · Headquarters: BOULDER, CO, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990

  69. Local Food Shift Group Inc

    EIN 830472699 · Headquarters: BOULDER, CO, USA · Environment · Latest available filing year: 2016 · Primary form: IRS Form 990-EZ

  70. Longmont Community Gardens

    EIN 852541143 · Headquarters: Longmont, CO, USA · Environment · Latest available filing year: 2022 · Primary form: IRS Form 990-EZ

  71. LoVa Trail Group

    EIN 841612182 · Headquarters: Glenwood Springs, CO, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  72. Lower Willow Creek Restoration Company

    EIN 453172015 · Headquarters: CREEDE, CO, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  73. Lowry Community Land Trust

    EIN 841601247 · Headquarters: DENVER, CO, USA · Environment · Latest available filing year: 2021 · Primary form: IRS Form 990

  74. Luscious Lands Foundation

    EIN 862829450 · Headquarters: Boulder, CO, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  75. Luzon Inc

    EIN 843723252 · Headquarters: Broomfield, CO, US · Environment · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  76. Lyons Community Farm Project

    EIN 862111389 · Headquarters: Lyons, CO, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  77. Madhvi4ecoethics

    EIN 823445666 · Headquarters: arvada, CO, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  78. Magnolia Forest Group Nfp

    EIN 471850399 · Headquarters: Nederland, CO, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  79. Manitou Pollinators

    EIN 863683585 · Headquarters: Manitou Springs, CO, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  80. Marine Ventures Foundation Inc % J Thomas Mcmurray

    EIN 522297698 · Headquarters: BOULDER, CO, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  81. Mariposa Foundation

    EIN 812600702 · Headquarters: BRECKENRIDGE, CO, USA · Environment · Latest available filing year: 2021 · Primary form: IRS Form 990-PF

  82. Mariposa Lily Project

    EIN 842261227 · Headquarters: Woody Creek, CO, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  83. Meridian Implementation Fund

    EIN 261917913 · Headquarters: DILLON, CO, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  84. Mesa County Land Conservancy Inc

    EIN 742155358 · Headquarters: GRAND JUNCTION, CO, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  85. Mesa Verde Back Country Horsemen Inc

    EIN 841571035 · Headquarters: Cortez, CO, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  86. Metempyrion Foundation

    EIN 260256375 · Headquarters: Pagosa Springs, CO, US · Environment · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  87. Mice Inc

    EIN 824516201 · Headquarters: Greeley, CO, US · Environment · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  88. Middle Boulder Creek Coalition Inc

    EIN 474684034 · Headquarters: Nederland, CO, US · Environment · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  89. Middle Colorado Watershed Council

    EIN 464352983 · Headquarters: RIFLE, CO, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990

  90. Middle South Platte River Alliance

    EIN 813658987 · Headquarters: BERTHOUD, CO, USA · Environment · Latest available filing year: 2019 · Primary form: IRS Form 990

  91. Million Solar Stars

    EIN 815032283 · Headquarters: Centennial, CO, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  92. Mineral Footprint Network Inc

    EIN 271367839 · Headquarters: Lakewood, CO, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  93. Montezuma County Motorsports Alliance

    EIN 850726985 · Headquarters: DOLORES, CO, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  94. Montezuma Land Conservancy

    EIN 311632961 · Headquarters: CORTEZ, CO, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  95. Montezuma School to Farm Project

    EIN 844298006 · Headquarters: CORTEZ, CO, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  96. Montrose Citizens for Responsible Growth

    EIN 204640999 · Headquarters: Montrose, CO, US · Environment · Latest available filing year: 2013 · Primary form: IRS Form 990-N

  97. Moonlight Ditch Association

    EIN 352367924 · Headquarters: Lewis, CO, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  98. Mother of Corals

    EIN 851247132 · Headquarters: Denver, CO, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  99. Mountain Area Land Trust

    EIN 846256809 · Headquarters: EVERGREEN, CO, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  100. Mountain Community Coalition

    EIN 332701292 · Headquarters: FLORISSANT, CO, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

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