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. Friends of High Camp

    EIN 883925215 · Headquarters: TELLURIDE, CO, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990

  2. Friends of Highline Lake State Park

    EIN 931892710 · Headquarters: FRUITA, CO, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  3. Friends of Larimer County Parks and Open Lands

    EIN 202699989 · Headquarters: Loveland, CO, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  4. Friends of Lory State Park

    EIN 462565796 · Headquarters: Bellvue, CO, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  5. Friends of Marolt Park

    EIN 841475363 · Headquarters: ASPEN, CO, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  6. Friends of Monument Preserve

    EIN 841503376 · Headquarters: Monument, CO, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  7. Friends of Monument Valley Park Inc

    EIN 841589887 · Headquarters: Colorado Springs, CO, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  8. Friends of Mount Evans & Lost Creek Wildernesses

    EIN 203783342 · Headquarters: EVERGREEN, CO, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  9. Friends of Roxborough State Park

    EIN 841338909 · Headquarters: Littleton, CO, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  10. Friends of Staunton State Park

    EIN 461422154 · Headquarters: Pine, CO, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  11. Friends of the Dillon Ranger District

    EIN 202343008 · Headquarters: Silverthorne, CO, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  12. Friends of the Longleaf Pines

    EIN 871890831 · Headquarters: COLORADO SPRINGS, CO, US · Environment · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  13. Friends of the Peak

    EIN 841344926 · Headquarters: Colorado Springs, CO, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  14. Friends of the River Uncompahgre Foru

    EIN 260828070 · Headquarters: MONTROSE, CO, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  15. Friends of the San Juans

    EIN 471876039 · Headquarters: Durango, CO, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  16. Friends of the Yampa Inc

    EIN 273657002 · Headquarters: STEAMBOAT SPRINGS, CO, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  17. Friends of Trinidad Lake State Park

    EIN 814822877 · Headquarters: Trinidad, CO, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  18. Friends of Ute Pass Trails

    EIN 872613069 · Headquarters: Green Mountain Falls, CO, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  19. Friends of Wilderness

    EIN 204597607 · Headquarters: STEAMBOAT SPRINGS, CO, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  20. Friends of Willow Springs Open Space Inc

    EIN 815398658 · Headquarters: Morrison, CO, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  21. Front Range Envorinmental Resource Coalition

    EIN 262193090 · Headquarters: Monument, CO, US · Environment · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  22. Front Range Nesting Bald Eagle Studies

    EIN 824123314 · Headquarters: Boulder, CO, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  23. Front Range Open Space

    EIN 882062645 · Headquarters: THORNTON, CO, US · Environment · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  24. Frontier Pathways Scenic Byways Inc

    EIN 841321239 · Headquarters: PENROSE, CO, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  25. Frontrange Earth Force

    EIN 841477193 · Headquarters: Denver, CO, US · Environment · Latest available filing year: 2011 · Primary form: IRS Form 990-N

  26. Full Circle Alliance Inc

    EIN 824738473 · Headquarters: Coaldale, CO, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  27. Full Circle Expeditions Inc

    EIN 873294093 · Headquarters: CORTEZ, CO, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  28. Fundacion Para La Juventud El Ambiente Y Los Deportes

    EIN 463049628 · Headquarters: denver, CO, US · Environment · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  29. Future Earth

    EIN 815033986 · Headquarters: FORT COLLINS, CO, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  30. Future of Yesterday Foundation

    EIN 461871338 · Headquarters: Canon City, CO, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  31. Gaia Institute Wellness Center

    EIN 841415052 · Headquarters: Pueblo, CO, US · Environment · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  32. Garden Bloggers Fling of Denver

    EIN 830754301 · Headquarters: NIWOT, CO, US · Environment · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  33. Garden Club of Denver

    EIN 846030278 · Headquarters: Denver, CO, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  34. Garden of the Gods Foundation

    EIN 274984658 · Headquarters: Colorado Springs, CO, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  35. Garden Park Paleontology Society

    EIN 841132999 · Headquarters: Canon City, CO, US · Environment · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  36. Gardens Restoring Our World

    EIN 832868551 · Headquarters: Grand Junction, CO, US · Environment · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  37. Garrigues Lateral Company

    EIN 422207635 · Headquarters: Fort Morgan, CO, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  38. GEB

    EIN 475657840 · Headquarters: Grand Junction, CO, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  39. Geothermal Greenhouse Partnership Inc

    EIN 454786340 · Headquarters: PAGOSA SPRINGS, CO, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  40. Ghostprint

    EIN 844444554 · Headquarters: PARKER, CO, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  41. Giggling Goat Farms

    EIN 921866201 · Headquarters: Norwood, CO, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  42. Glacier Rescue Project

    EIN 851340223 · Headquarters: Denver, CO, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  43. Glenwood Springs Citizens Alliance

    EIN 825527585 · Headquarters: Glenwood Springs, CO, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  44. Glenwood Springs Riverside Botanical Gardens

    EIN 393514047 · Headquarters: Glenwood Springs, CO, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  45. Global Biomass Network Project Inc

    EIN 262550592 · Headquarters: Colorado Springs, CO, US · Environment · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  46. Global Economic Education Alliance Nfp

    EIN 454869470 · Headquarters: Colorado Springs, CO, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  47. Global Ecovillage Network-united States

    EIN 621793769 · Headquarters: DENVER, CO, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  48. Global Greengrants Fund

    EIN 841612422 · Headquarters: Boulder, CO, United States · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  49. Global Warming Mitigation Project

    EIN 823056808 · Headquarters: ASPEN, CO, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  50. Go Nuclear Inc

    EIN 273532717 · Headquarters: Denver, CO, US · Environment · Latest available filing year: 2014 · Primary form: IRS Form 990-N

  51. Goals

    EIN 264664955 · Headquarters: Evergreen, CO, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  52. Gold Belt Tour Scenic and Historic Byway Association Inc

    EIN 841492275 · Headquarters: GUFFEY, CO, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  53. Good Trouble Climate Network

    EIN 331693956 · Headquarters: Durango, CO, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  54. Governors Climate and Forests Fund

    EIN 451025044 · Headquarters: FORT COLLINS, CO, USA · Environment · Latest available filing year: 2018 · Primary form: IRS Form 990

  55. Grand Co Water Information Network

    EIN 870726908 · Headquarters: GRAND LAKE, CO, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  56. Grand County Wilderness Group

    EIN 841414537 · Headquarters: Fraser, CO, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  57. Grand Resource & Recycle Coalition Inc

    EIN 900577958 · Headquarters: Hot Sulphur Springs, CO, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  58. Grand Valley Audubon Society

    EIN 237205741 · Headquarters: GRAND JUNCTION, CO, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  59. Great Outdoors Denver

    EIN 841334474 · Headquarters: DENVER, CO, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  60. Great West Sustainable Research Center Inc

    EIN 274473649 · Headquarters: DENVER, CO, US · Environment · Latest available filing year: 2013 · Primary form: IRS Form 990-N

  61. Great Western Institute

    EIN 203148654 · Headquarters: LITTLETON, CO, USA · Environment · Latest available filing year: 2011 · Primary form: IRS Form 990-EZ

  62. Great Western Trail Foundation

    EIN 822392453 · Headquarters: Severance, CO, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  63. Greater Arkansas River Nature Assoc

    EIN 841321011 · Headquarters: SALIDA, CO, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990

  64. Green Bag Lady

    EIN 472169697 · Headquarters: Littleton, CO, US · Environment · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  65. Green Cities Coalition of the Pikes Peak Region

    EIN 262517467 · Headquarters: COLORADO SPRINGS, CO, US · Environment · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  66. Green Corps Inc

    EIN 232687791 · Headquarters: DENVER, CO, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  67. Green Earth Initiative

    EIN 334940502 · Headquarters: SUPERIOR, CO, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  68. Green Events Inc

    EIN 455318667 · Headquarters: FORT COLLINS, CO, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  69. Green Mountain Irrigation Company

    EIN 846034858 · Headquarters: Lakewood, CO, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  70. Green Steps Alliance

    EIN 335057050 · Headquarters: COLORADO SPGS, CO, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  71. Green Up Our Schools

    EIN 275464366 · Headquarters: BOULDER, CO, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  72. Greencio

    EIN 874375221 · Headquarters: Denver, CO, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  73. GreenLatinos

    EIN 263386082 · Headquarters: Boulder, CO, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  74. Greenwood Village Foundation Inc

    EIN 205233882 · Headquarters: GREENWOOD VILLAGE, CO, USA · Environment · Latest available filing year: 2012 · Primary form: IRS Form 990-EZ

  75. Groundwork

    EIN 824526989 · Headquarters: Paonia, CO, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  76. Growing Empowerment

    EIN 812867478 · Headquarters: Carbondale, CO, US · Environment · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  77. Growing Gardens of Boulder County

    EIN 841454093 · Headquarters: BOULDER, CO, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990

  78. Growthbusters Inc

    EIN 922886581 · Headquarters: Colorado Springs, CO, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  79. Guffey Recycling Program

    EIN 843251977 · Headquarters: Divide, CO, US · Environment · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  80. Guidestone

    EIN 208782291 · Headquarters: Salida, CO, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990

  81. Gunnison Legacy Fund Dba Gunnison Ranchland Conservation

    EIN 841339198 · Headquarters: GUNNISON, CO, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990

  82. Gunnison Trails Inc

    EIN 113785204 · Headquarters: Gunnison, CO, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  83. Gunnison Valley Climbers

    EIN 820854535 · Headquarters: Gunnison, CO, US · Environment · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  84. H2o Media Ltd

    EIN 463205286 · Headquarters: Denver, CO, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  85. Happiness Project

    EIN 200278984 · Headquarters: Greenwood Village, CO, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  86. Harvest of All First Nations

    EIN 883183155 · Headquarters: BOULDER, CO, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  87. Headwaters Alliance

    EIN 814405786 · Headquarters: CREEDE, CO, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  88. Heart of a Building Llc

    EIN 844064173 · Headquarters: PAGOSA SPRINGS, CO, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  89. Heart-J Center for Experiential Lear

    EIN 464993961 · Headquarters: Loveland, CO, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  90. Hearth Institute

    EIN 993303583 · Headquarters: Ridgway, CO, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  91. Hearts and Spades Community Garden

    EIN 452613580 · Headquarters: Lake City, CO, US · Environment · Latest available filing year: 2015 · Primary form: IRS Form 990-N

  92. Hearts of Peace Foundation

    EIN 841575017 · Headquarters: BOULDER, CO, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  93. Henry and Baloo Foundation

    EIN 844889553 · Headquarters: Denver, CO, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  94. Hidden Playground

    EIN 843473765 · Headquarters: Englewood, CO, US · Environment · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  95. High Altitude Garden Club of Westcliffe

    EIN 205252211 · Headquarters: WESTCLIFFE, CO, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  96. High Country Conservation Center

    EIN 840740775 · Headquarters: FRISCO, CO, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  97. High Country News

    EIN 237015336 · Headquarters: PAONIA, CO, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  98. High Line Canal Preservation Association

    EIN 841167038 · Headquarters: Denver, CO, US · Environment · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  99. High Plains Environmental Center

    EIN 841581875 · Headquarters: LOVELAND, CO, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  100. High Plains Foundation

    EIN 841581860 · Headquarters: LOVELAND, CO, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

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