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. Lendonwood Gardens Inc

    EIN 731509040 · Headquarters: GROVE, OK, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  2. Lillian Timber Farms Inc

    EIN 844169139 · Headquarters: Oklahoma City, OK, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  3. Little Souls Animal Rescue

    EIN 461822807 · Headquarters: Broken Arrow, OK, US · Environment · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  4. Local Environmental Action Demanded Agency Inc

    EIN 731592485 · Headquarters: MIAMI, OK, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  5. Lower Mountain Fork River Foundation

    EIN 810576891 · Headquarters: broken bow, OK, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  6. Mary K Oxley Nature Center

    EIN 237429560 · Headquarters: Tulsa, OK, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  7. Master Gardener Foundation of Tulsa

    EIN 731413573 · Headquarters: Tulsa, OK, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  8. Master Gardeners Association of Rogers County Inc

    EIN 371499875 · Headquarters: CLAREMORE, OK, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  9. Matthew 2540 Mission Inc

    EIN 113643437 · Headquarters: STILLWATER, OK, USA · Environment · Latest available filing year: 2023 · Primary form: IRS Form 990-EZ

  10. Mission503 Inc

    EIN 863050464 · Headquarters: Oklahoma City, OK, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  11. Mosaic Gardens Syndicate

    EIN 831415509 · Headquarters: Tulsa, OK, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  12. Myriad Gardens Foundation

    EIN 731293008 · Headquarters: OKLAHOMA CITY, OK, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  13. Native Preservation Co

    EIN 993914841 · Headquarters: TULSA, OK, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  14. Ne Okc Community & Cultural Center Garden

    EIN 852331497 · Headquarters: OKC, OK, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  15. New Hope Cemetery Fund

    EIN 920797761 · Headquarters: Westville, OK, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  16. Nichols Marine Vision for the Preservation of Fishing Inc

    EIN 680543790 · Headquarters: MCALESTER, OK, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  17. No Mo Styro

    EIN 412484016 · Headquarters: Tulsa, OK, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  18. Norman Area Land Conservancy Inc

    EIN 731587379 · Headquarters: Norman, OK, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  19. North America Telecommunications Damage Prevention Council Inc

    EIN 991663227 · Headquarters: Oklahoma City, OK, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  20. North American Trail Education Inc

    EIN 852797715 · Headquarters: CLINTON, OK, US · Environment · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  21. North American Wood Ape Conservancy

    EIN 208267639 · Headquarters: Oklahoma City, OK, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  22. North Central Range Improvement

    EIN 273049275 · Headquarters: Perry, OK, US · Environment · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  23. Oklahoma Association of Conservation Districts Inc

    EIN 730801393 · Headquarters: Oklahoma City, OK, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  24. Oklahoma Association of Resource Conservation & Development Council

    EIN 731414166 · Headquarters: Weatherford, OK, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  25. Oklahoma Asssociation for Environmental Education

    EIN 731529225 · Headquarters: Oklahoma City, OK, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  26. Oklahoma Bass Federation INC

    EIN 208126487 · Headquarters: CATOOSA, OK, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  27. Oklahoma Centennial Botanical Garden Inc

    EIN 470878581 · Headquarters: Tulsa, OK, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  28. Oklahoma City Beautiful Inc

    EIN 730785200 · Headquarters: Oklahoma City, OK, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  29. Oklahoma Clean Lakes Association

    EIN 731287690 · Headquarters: Oklahoma City, OK, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  30. Oklahoma Climbers Coalition

    EIN 881603038 · Headquarters: Oklahoma City, OK, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  31. Oklahoma Compost and Sustainability Association

    EIN 862133208 · Headquarters: Oklahoma City, OK, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  32. Oklahoma Conservation Congress Oklahoma Chapter

    EIN 731150552 · Headquarters: Stillwater, OK, US · Environment · Latest available filing year: 2007 · Primary form: IRS Form 990-N

  33. Oklahoma County Master Gardeners

    EIN 900392642 · Headquarters: BETHANY, OK, USA · Environment · Latest available filing year: 2016 · Primary form: IRS Form 990-EZ

  34. Oklahoma County Master Gardeners Association

    EIN 843832426 · Headquarters: Oklahoma City Oklahoma, OK, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  35. Oklahoma Daffodil and Tulip Society

    EIN 994045162 · Headquarters: Blanchard, OK, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  36. Oklahoma Ecology Project Inc

    EIN 884393354 · Headquarters: Tulsa, OK, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  37. Oklahoma Energy Education Foundation

    EIN 204707442 · Headquarters: OKLAHOMA CITY, OK, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  38. Oklahoma Floodplain Managers Assoc

    EIN 731437151 · Headquarters: TULSA, OK, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  39. Oklahoma Garden Clubs

    EIN 481269211 · Headquarters: Bartlesville, OK, US · Environment · Latest available filing year: 2013 · Primary form: IRS Form 990-N

  40. Oklahoma Garden Clubs

    EIN 731338874 · Headquarters: Hominy, OK, US · Environment · Latest available filing year: 2014 · Primary form: IRS Form 990-N

  41. Oklahoma Garden Clubs

    EIN 731358960 · Headquarters: NORMAN, OK, US · Environment · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  42. Oklahoma Garden Clubs

    EIN 731358976 · Headquarters: Waynoka, OK, US · Environment · Latest available filing year: 2011 · Primary form: IRS Form 990-N

  43. Oklahoma Garden Clubs

    EIN 731358980 · Headquarters: Anadarko, OK, US · Environment · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  44. Oklahoma Garden Clubs

    EIN 731359127 · Headquarters: Bartlesville, OK, US · Environment · Latest available filing year: 2017 · Primary form: IRS Form 990-N

  45. Oklahoma Garden Clubs

    EIN 731359134 · Headquarters: Bartlesville, OK, US · Environment · Latest available filing year: 2007 · Primary form: IRS Form 990-N

  46. Oklahoma Garden Clubs

    EIN 731359136 · Headquarters: Bartlesville, OK, US · Environment · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  47. Oklahoma Garden Clubs

    EIN 731359205 · Headquarters: Tulsa, OK, US · Environment · Latest available filing year: 2014 · Primary form: IRS Form 990-N

  48. Oklahoma Garden Clubs

    EIN 731359214 · Headquarters: Broken Arrow, OK, US · Environment · Latest available filing year: 2014 · Primary form: IRS Form 990-N

  49. Oklahoma Garden Clubs

    EIN 731359229 · Headquarters: Claremore, OK, US · Environment · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  50. Oklahoma Garden Clubs

    EIN 731359272 · Headquarters: FT COBB, OK, US · Environment · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  51. Oklahoma Garden Clubs

    EIN 731359295 · Headquarters: Guymon, OK, US · Environment · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  52. Oklahoma Garden Clubs

    EIN 731359381 · Headquarters: LAWTON, OK, US · Environment · Latest available filing year: 2011 · Primary form: IRS Form 990-N

  53. Oklahoma Garden Clubs

    EIN 731359383 · Headquarters: Lawton, OK, US · Environment · Latest available filing year: 2013 · Primary form: IRS Form 990-N

  54. Oklahoma Garden Clubs

    EIN 731359390 · Headquarters: Bartlesville, OK, US · Environment · Latest available filing year: 2016 · Primary form: IRS Form 990-N

  55. Oklahoma Garden Clubs

    EIN 731359402 · Headquarters: MIAMI, OK, US · Environment · Latest available filing year: 2013 · Primary form: IRS Form 990-N

  56. Oklahoma Garden Clubs

    EIN 731359405 · Headquarters: MIDWEST CITY, OK, US · Environment · Latest available filing year: 2013 · Primary form: IRS Form 990-N

  57. Oklahoma Garden Clubs

    EIN 731359409 · Headquarters: Bartlesville, OK, US · Environment · Latest available filing year: 2015 · Primary form: IRS Form 990-N

  58. Oklahoma Garden Clubs

    EIN 731359417 · Headquarters: Midwest City, OK, US · Environment · Latest available filing year: 2014 · Primary form: IRS Form 990-N

  59. Oklahoma Garden Clubs

    EIN 731359418 · Headquarters: Midwest City, OK, US · Environment · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  60. Oklahoma Garden Clubs

    EIN 731359426 · Headquarters: Muskogee, OK, US · Environment · Latest available filing year: 2010 · Primary form: IRS Form 990-N

  61. Oklahoma Garden Clubs

    EIN 731359428 · Headquarters: Norman, OK, US · Environment · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  62. Oklahoma Garden Clubs

    EIN 731359436 · Headquarters: Bartlesville, OK, US · Environment · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  63. Oklahoma Garden Clubs

    EIN 731359443 · Headquarters: Oklahoma City, OK, US · Environment · Latest available filing year: 2014 · Primary form: IRS Form 990-N

  64. Oklahoma Garden Clubs

    EIN 731359445 · Headquarters: Edmond, OK, US · Environment · Latest available filing year: 2008 · Primary form: IRS Form 990-N

  65. Oklahoma Garden Clubs

    EIN 731359515 · Headquarters: Ponca City, OK, US · Environment · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  66. Oklahoma Garden Clubs

    EIN 731359521 · Headquarters: Sapulpa, OK, US · Environment · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  67. Oklahoma Garden Clubs

    EIN 731359523 · Headquarters: Oklahoma City, OK, US · Environment · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  68. Oklahoma Garden Clubs

    EIN 731359526 · Headquarters: Shawnee, OK, US · Environment · Latest available filing year: 2012 · Primary form: IRS Form 990-N

  69. Oklahoma Garden Clubs

    EIN 731359534 · Headquarters: OKLAHOMA CITY, OK, US · Environment · Latest available filing year: 2007 · Primary form: IRS Form 990-N

  70. Oklahoma Garden Clubs

    EIN 731359541 · Headquarters: Sulphur, OK, US · Environment · Latest available filing year: 2014 · Primary form: IRS Form 990-N

  71. Oklahoma Garden Clubs

    EIN 731359554 · Headquarters: Texhoma, OK, US · Environment · Latest available filing year: 2011 · Primary form: IRS Form 990-N

  72. Oklahoma Garden Clubs

    EIN 731359556 · Headquarters: Tipton, OK, US · Environment · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  73. Oklahoma Garden Clubs

    EIN 731359561 · Headquarters: Tulsa, OK, US · Environment · Latest available filing year: 2008 · Primary form: IRS Form 990-N

  74. Oklahoma Garden Clubs

    EIN 731359566 · Headquarters: Edmond, OK, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  75. Oklahoma Garden Clubs

    EIN 731527356 · Headquarters: Wakita, OK, US · Environment · Latest available filing year: 2011 · Primary form: IRS Form 990-N

  76. Oklahoma Garden Clubs

    EIN 731527370 · Headquarters: Bartlesville, OK, US · Environment · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  77. Oklahoma Garden Clubs

    EIN 800408956 · Headquarters: Edmond, OK, US · Environment · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  78. Oklahoma Garden Glubs

    EIN 731527407 · Headquarters: Hastings, OK, US · Environment · Latest available filing year: 2011 · Primary form: IRS Form 990-N

  79. Oklahoma Gardeners Association

    EIN 820790596 · Headquarters: BETHANY, OK, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  80. Oklahoma Grazing Lands Coalition Inc

    EIN 731572740 · Headquarters: Oklahoma City, OK, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  81. Oklahoma Green Schools Program Inc

    EIN 371659825 · Headquarters: Oklahoma City, OK, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  82. Oklahoma Invasive Plant Council

    EIN 263051709 · Headquarters: Norman, OK, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  83. Oklahoma Natural Employees Association

    EIN 730737924 · Headquarters: Tulsa, OK, US · Environment · Latest available filing year: 2013 · Primary form: IRS Form 990-N

  84. Oklahoma Orchid Society

    EIN 161744105 · Headquarters: Norman, OK, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  85. Oklahoma Pastel Society

    EIN 812650148 · Headquarters: Oklahoma City, OK, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  86. Oklahoma Prescribed Burn Association

    EIN 460663267 · Headquarters: Stillwater, OK, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  87. Oklahoma Prescribed Burn Association

    EIN 812010742 · Headquarters: Springer, OK, US · Environment · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  88. Oklahoma Prescribed Burn Associaton Woodward County Prescribed Burn

    EIN 465290619 · Headquarters: WOODWARD, OK, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  89. Oklahoma Renewable Energy Council

    EIN 470878309 · Headquarters: Moore, OK, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  90. Oklahoma State Organization Intl Good Sam Recreational Vehicle Club

    EIN 731358000 · Headquarters: Edmond, OK, US · Environment · Latest available filing year: 2014 · Primary form: IRS Form 990-N

  91. Oklahoma Sustainability Network Association

    EIN 412030911 · Headquarters: OKLAHOMA CITY, OK, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  92. Oklahomans for Responsible Water Policy

    EIN 272625081 · Headquarters: BROKEN BOW, OK, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  93. Okra Oklahoma Recycling Association

    EIN 731501007 · Headquarters: TULSA, OK, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  94. Osage County Conservation Foundation

    EIN 731405749 · Headquarters: PAWHUSKA, OK, US · Environment · Latest available filing year: 2016 · Primary form: IRS Form 990-N

  95. Ouachita Mountains Resource Conservation & Development

    EIN 731312122 · Headquarters: Poteau, OK, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  96. Owasso Bouquet of Gardeners

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

  97. Ozark Cave Diving Alliance

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

  98. Paint Horse Club of Oklahoma Inc

    EIN 932943644 · Headquarters: Norman, OK, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  99. Payne County Conservation Foundation Inc

    EIN 731392958 · Headquarters: STILLWATER, OK, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  100. Piedmont Historical Society

    EIN 731409378 · Headquarters: PIEDMONT, OK, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

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