Nonprofits in Oklahoma

Nonprofits in Oklahoma. Browse 25,638 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. Oklahoma Garden Clubs

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

  2. Oklahoma Garden Clubs

    EIN 736097385 · Headquarters: Edmond, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  3. Oklahoma Garden Clubs

    EIN 736107992 · Headquarters: Bartlesville, OK, US · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  4. Oklahoma Garden Clubs

    EIN 736120799 · Headquarters: Edmond, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  5. Oklahoma Garden Clubs

    EIN 742854228 · Headquarters: Bartlesville, OK, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  6. Oklahoma Garden Clubs

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

  7. Oklahoma Garden Clubs

    EIN 800507919 · Headquarters: Edmond, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  8. Oklahoma Garden Glubs

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

  9. Oklahoma Gardeners Association

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

  10. Oklahoma Garsen Club

    EIN 383988422 · Headquarters: Bartlesville, OK, US · Unknown & Unclassified · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  11. Oklahoma Gas Association

    EIN 731339530 · Headquarters: Oklahoma City, OK, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  12. Oklahoma Gay Political Caucus Inc

    EIN 731259563 · Headquarters: OKLAHOMA CITY, OK, US · Unknown & Unclassified · Latest available filing year: 2011 · Primary form: IRS Form 990-N

  13. Oklahoma Genealogical Society

    EIN 736102616 · Headquarters: Oklahoma City, OK, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  14. Oklahoma Genetics Inc

    EIN 731728055 · Headquarters: STILLWATER, OK, USA · Food, Agriculture & Nutrition · Latest available filing year: 2025 · Primary form: IRS Form 990

  15. Oklahoma German Shepherd Rescue Inc

    EIN 832389998 · Headquarters: JENKS, OK, USA · Animal Related · Latest available filing year: 2025 · Primary form: IRS Form 990

  16. Oklahoma Ghanaian Community Group

    EIN 208390616 · Headquarters: MOORE, OK, US · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  17. Oklahoma Giant Pumpkin Growers Club

    EIN 824078320 · Headquarters: Bartlesville, OK, US · Recreation & Sports · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  18. Oklahoma Golf Course Superintendent Associati

    EIN 731396848 · Headquarters: Oklahoma City, OK, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  19. Oklahoma Golf Hall of Fame Foundation

    EIN 472323982 · Headquarters: OKLAHOMA CITY, OK, USA · Recreation & Sports · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  20. Oklahoma Good Roads & Streets Association

    EIN 730725163 · Headquarters: Oklahoma City, OK, US · Community Improvement & Capacity Building · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  21. Oklahoma Governors International Team Inc

    EIN 311762307 · Headquarters: Oklahoma City, OK, US · Community Improvement & Capacity Building · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  22. Oklahoma Grain & Feed Association Inc

    EIN 730712247 · Headquarters: ENID, OK, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  23. Oklahoma Grand Assembly Charitable Educational Foundation

    EIN 550887457 · Headquarters: GUTHRIE, OK, USA · Education · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  24. Oklahoma Grand Assembly International Order of Rainbow

    EIN 731281917 · Headquarters: GUTHRIE, OK, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  25. Oklahoma Grape Industry Council

    EIN 274184245 · Headquarters: Washington, OK, US · Community Improvement & Capacity Building · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  26. Oklahoma Grazing Lands Coalition Inc

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

  27. Oklahoma Green Schools Program Inc

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

  28. Oklahoma Greyhound Association

    EIN 731347972 · Headquarters: BLAIR, OK, US · Animal Related · Latest available filing year: 2011 · Primary form: IRS Form 990-N

  29. Oklahoma Grit Youth Sports Inc

    EIN 301150467 · Headquarters: Cushing, OK, US · Recreation & Sports · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  30. Oklahoma Grocers Education Foundation

    EIN 731377411 · Headquarters: OKLAHOMA CITY, OK, USA · Arts, Culture & Humanities · Latest available filing year: 2024 · Primary form: IRS Form 990

  31. Oklahoma Ground Water Association

    EIN 134225995 · Headquarters: EDMOND, OK, USA · Community Improvement & Capacity Building · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  32. Oklahoma Growth Alliance Inc

    EIN 813175973 · Headquarters: OKLAHOMA CITY, OK, USA · Civil Rights, Social Action & Advocacy · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  33. Oklahoma Guardian Ad Litem Institute

    EIN 812175628 · Headquarters: EDMOND, OK, USA · Crime & Legal Related · Latest available filing year: 2025 · Primary form: IRS Form 990

  34. Oklahoma Guitar and Mandolin Orchestra Inc

    EIN 273085406 · Headquarters: Norman, OK, US · Arts, Culture & Humanities · Latest available filing year: 2017 · Primary form: IRS Form 990-N

  35. Oklahoma Halfway House Inc

    EIN 730766287 · Headquarters: Oklahoma City, OK, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  36. Oklahoma Hall of Fame

    EIN 730784696 · Headquarters: OKLAHOMA CITY, OK, USA · Arts, Culture & Humanities · Latest available filing year: 2024 · Primary form: IRS Form 990

  37. Oklahoma Hall of Fame for City and Town Officials Foundation

    EIN 731587533 · Headquarters: Oklahoma City, OK, US · Arts, Culture & Humanities · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  38. Oklahoma Harm Reduction Alliance Inc

    EIN 862303636 · Headquarters: TULSA, OK, USA · Mental Health & Crisis Intervention · Latest available filing year: 2024 · Primary form: IRS Form 990

  39. Oklahoma Harness Horse Association

    EIN 861151842 · Headquarters: Claremore, OK, US · Recreation & Sports · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  40. Oklahoma Hawks Basketball Association

    EIN 710985629 · Headquarters: MOORE, OK, US · Recreation & Sports · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  41. Oklahoma Head Start Directors Association

    EIN 731156798 · Headquarters: Pawnee, OK, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  42. Oklahoma Health Action Network Assn

    EIN 384092200 · Headquarters: OKLAHOMA CITY, OK, USA · Health Care · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  43. Oklahoma Health Care Workforce Ctr

    EIN 352364349 · Headquarters: Oklahoma City, OK, USA · Health Care · Latest available filing year: 2014 · Primary form: IRS Form 990

  44. Oklahoma Health Center Clinical Pastoral Education Institute Inc

    EIN 731620986 · Headquarters: EDMOND, OK, US · Health Care · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  45. Oklahoma Health Equity Network Inc

    EIN 823537388 · Headquarters: Oklahoma City, OK, US · Health Care · Latest available filing year: 2016 · Primary form: IRS Form 990-N

  46. Oklahoma Health Information Management Association

    EIN 731090531 · Headquarters: WEATHERFORD, OK, USA · Health Care · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  47. Oklahoma Health Occupation Education Teachers

    EIN 731354085 · Headquarters: STILLWATER, OK, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-EZ

  48. Oklahoma Health Professionals Program Inc

    EIN 208477202 · Headquarters: OKLAHOMA CITY, OK, USA · Mental Health & Crisis Intervention · Latest available filing year: 2024 · Primary form: IRS Form 990

  49. Oklahoma Health Sciences Facility

    EIN 730762267 · Headquarters: OKLAHOMA CITY, OK, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  50. Oklahoma Health Sciences Librarians Association

    EIN 731040741 · Headquarters: Oklahoma City, OK, US · Community Improvement & Capacity Building · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  51. Oklahoma Healthy Birth Alliance Incorporated

    EIN 475194447 · Headquarters: Edmond, OK, US · Health Care · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  52. Oklahoma Hearing Aid Dispensers Association Inc

    EIN 810802081 · Headquarters: TULSA, OK, US · Community Improvement & Capacity Building · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  53. Oklahoma Heart Gallery Inc

    EIN 462867545 · Headquarters: OKLAHOMA CITY, OK, US · Human Services · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  54. Oklahoma Heart Hospital Research Foundation Inc

    EIN 731455900 · Headquarters: OKLAHOMA CITY, OK, USA · Medical Research · Latest available filing year: 2024 · Primary form: IRS Form 990

  55. Oklahoma Heart Hospital Volunteer Auxiliary Inc

    EIN 870698579 · Headquarters: OKLAHOMA CITY, OK, USA · Health Care · Latest available filing year: 2014 · Primary form: IRS Form 990-EZ

  56. Oklahoma Heart Research and Education Foundation Inc

    EIN 731432360 · Headquarters: Tulsa, OK, USA · Medical Research · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  57. Oklahoma Hemophilia Foundation Inc

    EIN 730754621 · Headquarters: TULSA, OK, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  58. Oklahoma Hereford Assn

    EIN 730719759 · Headquarters: Skiatook, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  59. Oklahoma Hereford Hog Association

    EIN 815319210 · Headquarters: Arapaho, OK, US · Food, Agriculture & Nutrition · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  60. Oklahoma Heritage Horse Sanctuary Inc

    EIN 471869442 · Headquarters: Rattan, OK, US · Animal Related · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  61. Oklahoma Herpetological Society

    EIN 731109517 · Headquarters: Claremore, OK, US · Animal Related · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  62. Oklahoma High School Fishing Corporation

    EIN 883729397 · Headquarters: Broken Arrow, OK, US · Recreation & Sports · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  63. Oklahoma High School Rodeo Association

    EIN 731467592 · Headquarters: Freedom, OK, USA · Recreation & Sports · Latest available filing year: 2024 · Primary form: IRS Form 990

  64. Oklahoma High School Sailing Association

    EIN 731579569 · Headquarters: Oklahoma City, OK, US · Education · Latest available filing year: 2007 · Primary form: IRS Form 990-N

  65. Oklahoma Higher Ed Reading Council

    EIN 412090146 · Headquarters: Enid, OK, US · Unknown & Unclassified · Latest available filing year: 2010 · Primary form: IRS Form 990-N

  66. Oklahoma Higher Edu Heritage Soc

    EIN 731383885 · Headquarters: OKLAHOMA CITY, OK, USA · Arts, Culture & Humanities · Latest available filing year: 2024 · Primary form: IRS Form 990

  67. Oklahoma Highway Patrol Chaplains Program Inc

    EIN 710899880 · Headquarters: NORMAN, OK, US · Mental Health & Crisis Intervention · Latest available filing year: 2015 · Primary form: IRS Form 990-N

  68. Oklahoma Hispanic Chamber Foundation

    EIN 710912258 · Headquarters: Tulsa, OK, US · Community Improvement & Capacity Building · Latest available filing year: 2010 · Primary form: IRS Form 990-N

  69. Oklahoma Historical Theatre Inc

    EIN 731397119 · Headquarters: Edmond, OK, US · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  70. Oklahoma Hockey Academy Incorporation

    EIN 842634746 · Headquarters: BETHANY, OK, USA · Recreation & Sports · Latest available filing year: 2020 · Primary form: IRS Form 990-EZ

  71. Oklahoma Holstein-Friesian Association

    EIN 731095559 · Headquarters: Perkins, OK, USA · Employment · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  72. Oklahoma Home & Community Education Inc

    EIN 263757085 · Headquarters: Newkirk, OK, US · Community Improvement & Capacity Building · Latest available filing year: 2014 · Primary form: IRS Form 990-N

  73. Oklahoma Home & Community Education Inc

    EIN 300969693 · Headquarters: Oklahoma City, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  74. Oklahoma Home and Community Education

    EIN 262320977 · Headquarters: Coalgate, OK, US · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  75. Oklahoma Home and Community Education

    EIN 262473952 · Headquarters: Kingfisher, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  76. Oklahoma Home and Community Education

    EIN 262910613 · Headquarters: Taloga, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  77. Oklahoma Home and Community Education

    EIN 462044500 · Headquarters: Deer Creek, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  78. Oklahoma Home and Community Education

    EIN 813598001 · Headquarters: Norman, OK, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  79. Oklahoma Home and Community Education Blaine County

    EIN 834369324 · Headquarters: Watonga, OK, US · Education · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  80. Oklahoma Home and Community Education Inc

    EIN 141901377 · Headquarters: Norman, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  81. Oklahoma Home and Community Education Inc

    EIN 204687469 · Headquarters: Chandler, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  82. Oklahoma Home and Community Education Inc

    EIN 261180350 · Headquarters: Chandler, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  83. Oklahoma Home and Community Education Inc

    EIN 262135499 · Headquarters: El Reno, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  84. Oklahoma Home and Community Education Inc

    EIN 262156604 · Headquarters: El Reno, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  85. Oklahoma Home and Community Education Inc

    EIN 262267856 · Headquarters: Stillwater, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  86. Oklahoma Home and Community Education Inc

    EIN 262288414 · Headquarters: Dewey, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  87. Oklahoma Home and Community Education Inc

    EIN 262299682 · Headquarters: Sayre, OK, US · Community Improvement & Capacity Building · Latest available filing year: 2013 · Primary form: IRS Form 990-N

  88. Oklahoma Home and Community Education Inc

    EIN 262299841 · Headquarters: Cordell, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  89. Oklahoma Home and Community Education Inc

    EIN 262299978 · Headquarters: Sayre, OK, US · Education · Latest available filing year: 2010 · Primary form: IRS Form 990-N

  90. Oklahoma Home and Community Education Inc

    EIN 262306330 · Headquarters: Cordell, OK, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  91. Oklahoma Home and Community Education Inc

    EIN 262306409 · Headquarters: Cordell, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  92. Oklahoma Home and Community Education Inc

    EIN 262306487 · Headquarters: Cordell, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  93. Oklahoma Home and Community Education Inc

    EIN 262306549 · Headquarters: Cordell, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  94. Oklahoma Home and Community Education Inc

    EIN 262310379 · Headquarters: Norman, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  95. Oklahoma Home and Community Education Inc

    EIN 262310508 · Headquarters: Norman, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  96. Oklahoma Home and Community Education Inc

    EIN 262310610 · Headquarters: NORMAN, OK, US · Education · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  97. Oklahoma Home and Community Education Inc

    EIN 262310664 · Headquarters: Norman, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  98. Oklahoma Home and Community Education Inc

    EIN 262310766 · Headquarters: Norman, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  99. Oklahoma Home and Community Education Inc

    EIN 262310811 · Headquarters: Norman, OK, US · Community Improvement & Capacity Building · Latest available filing year: 2014 · Primary form: IRS Form 990-N

  100. Oklahoma Home and Community Education Inc

    EIN 262312044 · Headquarters: Oklahoma City, OK, US · Education · Latest available filing year: 2010 · Primary form: IRS Form 990-N

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