Environment nonprofits in Oklahoma

Environment nonprofits in Oklahoma. Browse 264 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. Ace Educational Foundation Inc

    EIN 820610516 · Headquarters: Edmond, OK, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990

  2. Ada Recycling Coalition Incorporated

    EIN 731397008 · Headquarters: Ada, OK, US · Environment · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  3. Adair County Litter Free & Green Association

    EIN 473483621 · Headquarters: Stilwell, OK, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  4. Advocates for Blueriver Foundation

    EIN 825010102 · Headquarters: Tishomingo, OK, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  5. African Violet Society of Greater Tulsa

    EIN 542076440 · Headquarters: Broken Arrow, OK, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  6. American Energy & Enviornmental Research Foundation

    EIN 272888646 · Headquarters: TULSA, OK, USA · Environment · Latest available filing year: 2013 · Primary form: IRS Form 990-PF

  7. American Iris Society

    EIN 432007159 · Headquarters: Ponca City, OK, US · Environment · Latest available filing year: 2016 · Primary form: IRS Form 990-N

  8. Appraisal Institute

    EIN 431609759 · Headquarters: Tulsa, OK, US · Environment · Latest available filing year: 2017 · Primary form: IRS Form 990-N

  9. Arbuckle Land Conservancy Inc

    EIN 880579882 · Headquarters: SHAWNEE, OK, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  10. Ardmore Beautification Council

    EIN 731481529 · Headquarters: ARDMORE, OK, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  11. Ardmore Regional Park Authority

    EIN 731495040 · Headquarters: Ardmore, OK, US · Environment · Latest available filing year: 2012 · Primary form: IRS Form 990-N

  12. Audubon Society of Central Oklahoma Inc

    EIN 731190646 · Headquarters: Oklahoma City, OK, US · Environment · Latest available filing year: 2008 · Primary form: IRS Form 990-N

  13. Buena Vista Club of Oklahoma

    EIN 731543150 · Headquarters: Pawnee, OK, US · Environment · Latest available filing year: 2012 · Primary form: IRS Form 990-N

  14. Cactus & Succulent Society of Tulsa

    EIN 721200407 · Headquarters: Broken Arrow, OK, US · Environment · Latest available filing year: 2011 · Primary form: IRS Form 990-N

  15. Capital Association of Professional Division Order Analysts

    EIN 800280138 · Headquarters: OKLAHOMA CITY, OK, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  16. Carrie Dickerson Foundation

    EIN 010765811 · Headquarters: TULSA, OK, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  17. Cdots Institute for Innovation & Economi

    EIN 412682426 · Headquarters: OKLAHOMA CITY, OK, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  18. Cedar Lake Growth Inc

    EIN 261518473 · Headquarters: Hinton, OK, US · Environment · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  19. Center for the Study of Carbon and Energy Markets

    EIN 262101543 · Headquarters: Tulsa, OK, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  20. Central Oklahoma Cactus & Succulent Society

    EIN 901041249 · Headquarters: Moore, OK, US · Environment · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  21. Central Oklahoma Stormwater Alliance Inc

    EIN 853458893 · Headquarters: Oklahoma City, OK, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  22. Central Park Community Garden Inc

    EIN 881096519 · Headquarters: Oklahoma City, OK, US · Environment · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  23. Cherokee Ozarks Greenway Foundation Inc

    EIN 461068158 · Headquarters: Tahlequah, OK, US · Environment · Latest available filing year: 2017 · Primary form: IRS Form 990-N

  24. Chisholm Trail Historical Preservation Society

    EIN 731363492 · Headquarters: Yukon, OK, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  25. Cimarron Range Preservation Association

    EIN 364666666 · Headquarters: Freedom, OK, US · Environment · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  26. Cimarron Terrace Water Association Inc

    EIN 873730982 · Headquarters: Ames, OK, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  27. Clean Resources Oklahoma Inc

    EIN 473442624 · Headquarters: Oklahoma City, OK, US · Environment · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  28. Cleveland County Master Gardener Association

    EIN 300151328 · Headquarters: Norman, OK, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  29. Coalition of Oklahoma Landowners Inc

    EIN 873817791 · Headquarters: Tuttle, OK, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  30. Color Duncan Beautiful

    EIN 833794195 · Headquarters: Duncan, OK, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  31. Compatible Lands Foundation

    EIN 271693939 · Headquarters: CLAREMORE, OK, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  32. Conservation Coalition of Oklahoma

    EIN 611661052 · Headquarters: Oklahoma City, OK, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  33. Council of Greenville Garden Clubs Inc

    EIN 237336059 · Headquarters: LAWTON, OK, US · Environment · Latest available filing year: 2008 · Primary form: IRS Form 990-N

  34. Cpasa Inc

    EIN 320115786 · Headquarters: TISHOMINGO, OK, USA · Environment · Latest available filing year: 2023 · Primary form: IRS Form 990-EZ

  35. Creators Gift Community Garden

    EIN 471896143 · Headquarters: Poteau, OK, US · Environment · Latest available filing year: 2016 · Primary form: IRS Form 990-N

  36. Creek County Prescribed Burn Association

    EIN 454378854 · Headquarters: Bristow, OK, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  37. Cross Timbers Rc&d Association

    EIN 731393062 · Headquarters: OKMULGEE, OK, USA · Environment · Latest available filing year: 2017 · Primary form: IRS Form 990-EZ

  38. Crosstimbers Prescribed Burn Association

    EIN 471357998 · Headquarters: Chandler, OK, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  39. Downtown Cushing Revitalization Ass

    EIN 731474731 · Headquarters: Cushing, OK, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  40. Downtown Muskogee Inc

    EIN 262171164 · Headquarters: MUSKOGEE, OK, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990

  41. Durant Sustainability Coalition Inc

    EIN 931875779 · Headquarters: Durant, OK, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  42. Durant Trails and Open Space

    EIN 815101097 · Headquarters: Durant, OK, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  43. Earth Rebirth

    EIN 275295659 · Headquarters: Oklahoma City, OK, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  44. Ecolaw Institute Inc

    EIN 731364484 · Headquarters: STILWELL, OK, US · Environment · Latest available filing year: 2013 · Primary form: IRS Form 990-N

  45. Edmond Land Conservancy Inc

    EIN 743109213 · Headquarters: Edmond, OK, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  46. Electronic Synergy Foundation

    EIN 471034524 · Headquarters: TULSA, OK, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  47. Energy Education Partnership Inc

    EIN 731507278 · Headquarters: OKLAHOMA CITY, OK, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  48. Environmental Health Foundation

    EIN 680022441 · Headquarters: YUKON, OK, US · Environment · Latest available filing year: 2011 · Primary form: IRS Form 990-N

  49. Environmental Innovators of America Inc

    EIN 881086042 · Headquarters: Edmond, OK, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  50. Every Environment Foundation

    EIN 464685991 · Headquarters: Edmond, OK, US · Environment · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  51. Explorology Foundation

    EIN 272389211 · Headquarters: EDMOND, OK, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  52. Fish Lake Land Trust Inc

    EIN 271186167 · Headquarters: Tulsa, OK, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  53. Forest Essence Foundation

    EIN 461991857 · Headquarters: Spavinaw, OK, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  54. Friends of Blue Thumb Inc

    EIN 461815572 · Headquarters: Oklahoma City, OK, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  55. Friends of Cpasa

    EIN 274638686 · Headquarters: Thishomingo, OK, US · Environment · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  56. Friends of Grand Lake Audubon Society

    EIN 993568094 · Headquarters: Grove, OK, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  57. Friends of Heavener Runestone Inc

    EIN 800710948 · Headquarters: Heavener, OK, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  58. Friends of Northern Flyer Alliance Inc

    EIN 273699438 · Headquarters: Stillwater, OK, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  59. Friends of Sanborn Nature Camp Inc

    EIN 824498022 · Headquarters: Stillwater, OK, USA · Environment · Latest available filing year: 2018 · Primary form: IRS Form 990-EZ

  60. Friends of the Deep Fork National Wildlife Refuge Inc

    EIN 752971757 · Headquarters: Okmulgee, OK, US · Environment · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  61. Friends of the Met Inc

    EIN 273280831 · Headquarters: Tulsa, OK, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  62. Friends of the Youth Expo Inc

    EIN 383865355 · Headquarters: ALVA, OK, US · Environment · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  63. Friends of Will Rogers Gardens Foundation

    EIN 833162792 · Headquarters: Oklahoma City, OK, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  64. Fun Country Resource Conservation & Development Are Association

    EIN 731356551 · Headquarters: Pauls Valley, OK, US · Environment · Latest available filing year: 2010 · Primary form: IRS Form 990-N

  65. Gar Creek Community Center Inc

    EIN 463068818 · Headquarters: Wewoka, OK, US · Environment · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  66. Garden Lakes Wetlands Conservancy

    EIN 204078345 · Headquarters: OKLAHOMA CITY, OK, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  67. Garfield County Master Gardeners

    EIN 262927066 · Headquarters: ENID, OK, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  68. Gateway Gardens Homeowmers

    EIN 731146382 · Headquarters: Oklahoma City, OK, US · Environment · Latest available filing year: 2013 · Primary form: IRS Form 990-N

  69. Gloss Mountain Conservancy Inc

    EIN 731536160 · Headquarters: Fairview, OK, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  70. Grand Lake Audubon Society

    EIN 731502137 · Headquarters: GROVE, OK, US · Environment · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  71. Grand Lake O the Cherokees Watershed Alliance Foundation Inc

    EIN 260771111 · Headquarters: GROVE, OK, US · Environment · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  72. Great Plains Land and Wildlife Conservation Corporation

    EIN 824976224 · Headquarters: TULSA, OK, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  73. Great Plains Preservation and Development

    EIN 731437312 · Headquarters: Stillwater, OK, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  74. Green Chemistry Center Northwest

    EIN 463813409 · Headquarters: Tulsa, OK, US · Environment · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  75. Green Connections Inc

    EIN 731482041 · Headquarters: Oklahoma City, OK, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  76. Green Country Conservation Alliance

    EIN 880646840 · Headquarters: EUCHA, OK, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  77. Green Country Sustainable Conservation Club

    EIN 824540963 · Headquarters: INOLA, OK, US · Environment · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  78. Green-it Foundation Inc

    EIN 871649729 · Headquarters: Oklahoma City, OK, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  79. Hackberry Flat Foundation Inc

    EIN 731507552 · Headquarters: FREDERICK, OK, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  80. Hellenic Foundation for the Preservation of Hist&culture Inc

    EIN 113680336 · Headquarters: Tulsa, OK, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  81. Herbal Affair Inc

    EIN 261581989 · Headquarters: Sand Springs, OK, US · Environment · Latest available filing year: 2015 · Primary form: IRS Form 990-N

  82. High Plains Resource Conservation

    EIN 731412849 · Headquarters: BUFFALO, OK, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  83. Institute for Environmental Innovation

    EIN 731610432 · Headquarters: Coweta, OK, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  84. International Association of Administrative Professionals

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

  85. International Water for Life Inc

    EIN 611493475 · Headquarters: Oklahoma City, OK, US · Environment · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  86. Izaak Walton League of America Inc

    EIN 731424872 · Headquarters: STILLWATER, OK, US · Environment · Latest available filing year: 2007 · Primary form: IRS Form 990-N

  87. Kay County Master Gardeners Incorporated

    EIN 300588847 · Headquarters: Ponca City, OK, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  88. Keep Broken Arrow Beautiful Inc

    EIN 273325523 · Headquarters: Broken Arrow, OK, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  89. Keep Catoosa Beautiful Inc

    EIN 365140676 · Headquarters: CATOOSA, OK, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  90. Keep Edmond Beautiful Inc

    EIN 731235635 · Headquarters: Edmond, OK, US · Environment · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  91. Keep Oklahoma Beautiful Inc

    EIN 730747023 · Headquarters: OKLAHOMA CITY, OK, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  92. Keep Spavinaw Pure Inc

    EIN 824609637 · Headquarters: PEGGS, OK, US · Environment · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  93. Kiamichi River Legacy Alliance

    EIN 821902684 · Headquarters: Antlers, OK, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  94. Kingfisher Trails Inc

    EIN 331041811 · Headquarters: KINGFISHER, OK, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990

  95. Kirkpatrick Policy Group Inc

    EIN 823761840 · Headquarters: OKLAHOMA CITY, OK, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  96. Lake Bixhoma Foundation

    EIN 811497862 · Headquarters: Bixby, OK, US · Environment · Latest available filing year: 2015 · Primary form: IRS Form 990-N

  97. Lake McMurtry Friends Inc

    EIN 455191283 · Headquarters: Stillwater, OK, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  98. Lake O the Cherokees Sub-watershed Association

    EIN 862466744 · Headquarters: DISNEY, OK, US · Environment · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  99. Lake of the Arbuckles Watershed Association Inc

    EIN 825390803 · Headquarters: Sulphur, OK, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  100. Land Legacy Inc

    EIN 300137741 · Headquarters: Tulsa, OK, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990

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