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. International Aviation Heritage Foundation

    EIN 331981623 · Headquarters: Oklahoma City, OK, US · Arts, Culture & Humanities · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  2. International Betta Congress

    EIN 311040416 · Headquarters: TALALA, OK, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  3. International Bridge Corporation

    EIN 470939161 · Headquarters: Oklahoma City, OK, US · International, Foreign Affairs & National Security · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  4. International Brotherhd - Boilrmkrs Ir Shp Bldrs Blcksmth Frgrs & Hlpr

    EIN 730609610 · Headquarters: ADA, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  5. International Brotherhood of Boiler Makers Iron Ship Builders Blacksmi

    EIN 736103039 · Headquarters: Garvin, OK, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  6. International Brotherhood of Boilermakers Iron Ship Builders

    EIN 736103595 · Headquarters: TULSA, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  7. International Brotherhood of Electrical Workers 1141

    EIN 730298080 · Headquarters: OKLAHOMA CITY, OK, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  8. International Brotherhood of Electrical Workers Lo

    EIN 730298082 · Headquarters: PONCA CITY, OK, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  9. International Brotherhood of Electrical Workers Local No 1002

    EIN 730386475 · Headquarters: TULSA, OK, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  10. International Brotherhood of Teamst Local Union No 516

    EIN 730243025 · Headquarters: MUSKOGEE, OK, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  11. International Brotherhood of Teamsters

    EIN 731249249 · Headquarters: Oklahoma City, OK, US · Employment · Latest available filing year: 2007 · Primary form: IRS Form 990-N

  12. International Brotherhood of Teamsters 886

    EIN 730298085 · Headquarters: OKLAHOMA CITY, OK, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  13. International Brotherhood of Teamsters Local 523

    EIN 730243029 · Headquarters: TULSA, OK, USA · Employment · Latest available filing year: 2018 · Primary form: IRS Form 990

  14. International Childrens Aid Network

    EIN 934636276 · Headquarters: EDMOND, OK, US · Human Services · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  15. International Christian Accrediting Association

    EIN 731363953 · Headquarters: TULSA, OK, USA · Education · Latest available filing year: 2024 · Primary form: IRS Form 990

  16. International Christian Association

    EIN 731559383 · Headquarters: BARTLESVILLE, OK, USA · Religion Related · Latest available filing year: 2025 · Primary form: IRS Form 990

  17. International Christian Institute of Higher Education

    EIN 731463720 · Headquarters: BIXBY, OK, USA · Youth Development · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  18. International Christian Photographe

    EIN 201570026 · Headquarters: Edmond, OK, US · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  19. International Church Ministries Inc

    EIN 431899430 · Headquarters: TULSA, OK, USA · Religion Related · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  20. International Community Ministries

    EIN 461338033 · Headquarters: Sapulpa, OK, USA · Human Services · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  21. International Community Outreach Inc

    EIN 731573489 · Headquarters: TULSA, OK, USA · Religion Related · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  22. International Congress of Churches and Ministries

    EIN 461873305 · Headquarters: Lawton, OK, US · Religion Related · Latest available filing year: 2014 · Primary form: IRS Form 990-N

  23. International Connections Inc

    EIN 731545195 · Headquarters: SHAWNEE, OK, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2019 · Primary form: IRS Form 990

  24. International Council for Machinery Lubrication Inc

    EIN 731604134 · Headquarters: Broken Arrow, OK, USA · Community Improvement & Capacity Building · Latest available filing year: 2024 · Primary form: IRS Form 990

  25. International Federation of Professional & Technical Engineers

    EIN 736106003 · Headquarters: TULSA, OK, US · Employment · Latest available filing year: 2008 · Primary form: IRS Form 990-N

  26. International Fellowship of Christian Businessmen USA

    EIN 731461829 · Headquarters: Bixby, OK, US · Religion Related · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  27. International Full Gospel Mission Inc

    EIN 823705662 · Headquarters: SAND SPRINGS, OK, USA · Religion Related · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  28. International Gospel Center Incorporated

    EIN 731428665 · Headquarters: TULSA, OK, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  29. International Gospel Mission Inc

    EIN 731097966 · Headquarters: BETHANY, OK, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  30. International Gospel Outreach Assoc

    EIN 731381129 · Headquarters: Bethany, OK, US · Religion Related · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  31. International Gymnastics Hall of Fame Inc

    EIN 330181169 · Headquarters: Norman, OK, USA · Arts, Culture & Humanities · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  32. International Hope Full Gospel Ministry Inc

    EIN 731584988 · Headquarters: Noble, OK, USA · Religion Related · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  33. International Impact Ministries In

    EIN 463171889 · Headquarters: ENID, OK, USA · Religion Related · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  34. International James Joyce Foundation

    EIN 142004730 · Headquarters: Tulsa, OK, US · Arts, Culture & Humanities · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  35. International Languages Library Inc

    EIN 932518389 · Headquarters: Tulsa, OK, US · Education · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  36. International Literacy Association

    EIN 825173822 · Headquarters: Coyle, OK, US · Education · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  37. International Literary Union

    EIN 364840134 · Headquarters: EDMOND, OK, US · Arts, Culture & Humanities · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  38. International Love Ministries Inc

    EIN 873873219 · Headquarters: Coweta, OK, USA · Religion Related · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  39. International Medicine Network Inc

    EIN 731557919 · Headquarters: TULSA, OK, USA · International, Foreign Affairs & National Security · Latest available filing year: 2024 · Primary form: IRS Form 990

  40. International Military Archives Preservation Foundation

    EIN 431472453 · Headquarters: Tulsa, OK, US · Education · Latest available filing year: 2016 · Primary form: IRS Form 990-N

  41. International Mission Services Inc

    EIN 731369974 · Headquarters: Tulsa, OK, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  42. International Order of Jobs Daughters in Oklahoma Trust

    EIN 010942685 · Headquarters: Oklahoma City, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  43. International Order of the Rainbow

    EIN 730474600 · Headquarters: MCALESTER, OK, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  44. International Order of the Rainbow Girls

    EIN 201679892 · Headquarters: Guthrie, OK, US · Youth Development · Latest available filing year: 2008 · Primary form: IRS Form 990-N

  45. International Order of the Rainbow Girls

    EIN 237507136 · Headquarters: Guthrie, OK, US · Youth Development · Latest available filing year: 2010 · Primary form: IRS Form 990-N

  46. International Order of the Rainbow Girls

    EIN 237507137 · Headquarters: Tu, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  47. International Order of the Rainbow Girls

    EIN 237507140 · Headquarters: Oklahoma City, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  48. International Order of the Rainbow Girls

    EIN 237507146 · Headquarters: Cherokee, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  49. International Order of the Rainbow Girls

    EIN 237507159 · Headquarters: Alva, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  50. International Order of the Rainbow Girls

    EIN 237507161 · Headquarters: Guthrie, OK, US · Youth Development · Latest available filing year: 2017 · Primary form: IRS Form 990-N

  51. International Order of the Rainbow Girls

    EIN 237507163 · Headquarters: Guthrie, OK, US · Youth Development · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  52. International Order of the Rainbow Girls

    EIN 237507166 · Headquarters: Ringwood, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  53. International Order of the Rainbow Girls

    EIN 237507176 · Headquarters: Guthrie, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  54. International Order of the Rainbow Girls

    EIN 237507188 · Headquarters: Guthrie, OK, US · Youth Development · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  55. International Order of the Rainbow Girls

    EIN 237507190 · Headquarters: Guthrie, OK, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  56. International Order of the Rainbow Girls

    EIN 237507193 · Headquarters: Guthrie, OK, US · Youth Development · Latest available filing year: 2013 · Primary form: IRS Form 990-N

  57. International Order of the Rainbow Girls

    EIN 237507199 · Headquarters: Choctaw, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  58. International Order of the Rainbow Girls

    EIN 237507200 · Headquarters: Newcastle, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  59. International Order of the Rainbow Girls

    EIN 237507201 · Headquarters: Krebs, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  60. International Order of the Rainbow Girls

    EIN 237507206 · Headquarters: Noble, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  61. International Order of the Rainbow Girls

    EIN 237507212 · Headquarters: Collinsville, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  62. International Order of the Rainbow Girls

    EIN 237507221 · Headquarters: Guthrie, OK, US · Youth Development · Latest available filing year: 2008 · Primary form: IRS Form 990-N

  63. International Order of the Rainbow Girls

    EIN 237507226 · Headquarters: GUTHRIE, OK, US · Youth Development · Latest available filing year: 2015 · Primary form: IRS Form 990-N

  64. International Order of the Rainbow Girls

    EIN 237507228 · Headquarters: Prague, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  65. International Order of the Rainbow Girls

    EIN 237507229 · Headquarters: Alva, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  66. International Order of the Rainbow Girls

    EIN 237507724 · Headquarters: Alva, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  67. International Order of the Rainbow Girls

    EIN 237507727 · Headquarters: GUTHRIE, OK, US · Youth Development · Latest available filing year: 2011 · Primary form: IRS Form 990-N

  68. International Order of the Rainbow Girls

    EIN 237507805 · Headquarters: Guthrie, OK, US · Youth Development · Latest available filing year: 2008 · Primary form: IRS Form 990-N

  69. International Order of the Rainbow Girls

    EIN 237507806 · Headquarters: Kingfisher, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  70. International Order of the Rainbow Girls

    EIN 260086475 · Headquarters: Bartlesville, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  71. International Order of the Rainbow Girls

    EIN 364824275 · Headquarters: Guthrie, OK, US · Youth Development · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  72. International Order of the Rainbow Girls

    EIN 371872297 · Headquarters: Guthire, OK, US · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  73. International Order of the Rainbow Girls

    EIN 432093551 · Headquarters: Elk City, OK, US · Youth Development · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  74. International Order of the Rainbow Girls

    EIN 460518338 · Headquarters: Guthrie, OK, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  75. International Order of the Rainbow Girls

    EIN 731609383 · Headquarters: Claremore, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  76. International Order of the Rainbow Girls

    EIN 753205858 · Headquarters: Alva, OK, US · Youth Development · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  77. International Order of the Rainbow Girls Supreme Assembly

    EIN 352498053 · Headquarters: Mustang, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  78. International Order of the Rainbow Girls Supreme Assembly

    EIN 364866013 · Headquarters: McAlester, OK, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  79. International Ornithologists Union

    EIN 472490986 · Headquarters: Norman, OK, US · Social Science · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  80. International Orphan Aid Inc

    EIN 272403326 · Headquarters: Broken Arrow, OK, USA · International, Foreign Affairs & National Security · Latest available filing year: 2011 · Primary form: IRS Form 990-EZ

  81. International Outreach

    EIN 731038821 · Headquarters: Guymon, OK, US · International, Foreign Affairs & National Security · Latest available filing year: 2007 · Primary form: IRS Form 990-N

  82. International Outreach Center Inc

    EIN 920867153 · Headquarters: Muldrow, OK, US · Religion Related · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  83. International Outreach Ministers Ne

    EIN 465635480 · Headquarters: Owasso, OK, US · Religion Related · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  84. International Prophets Fellowship Inc

    EIN 994768547 · Headquarters: Edmond, OK, US · Religion Related · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  85. International Reading Association

    EIN 010963449 · Headquarters: Comanche, OK, US · Education · Latest available filing year: 2015 · Primary form: IRS Form 990-N

  86. International Reading Association Inc

    EIN 237065241 · Headquarters: Norman, OK, US · Education · Latest available filing year: 2008 · Primary form: IRS Form 990-N

  87. International Reading Association Inc

    EIN 237101489 · Headquarters: Bethany, OK, US · Education · Latest available filing year: 2010 · Primary form: IRS Form 990-N

  88. International Reading Association Inc

    EIN 731085511 · Headquarters: Lawton, OK, US · Education · Latest available filing year: 2010 · Primary form: IRS Form 990-N

  89. International Reading Association Inc

    EIN 731095569 · Headquarters: Edmond, OK, US · Education · Latest available filing year: 2010 · Primary form: IRS Form 990-N

  90. International Reading Association Inc

    EIN 731097054 · Headquarters: Enid, OK, US · Education · Latest available filing year: 2012 · Primary form: IRS Form 990-N

  91. International Reading Association Inc

    EIN 731183545 · Headquarters: Vinita, OK, US · Education · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  92. International Reading Association Inc

    EIN 731219152 · Headquarters: Enid, OK, US · Education · Latest available filing year: 2014 · Primary form: IRS Form 990-N

  93. International Reading Association Inc

    EIN 731291471 · Headquarters: Chickasha, OK, US · Education · Latest available filing year: 2008 · Primary form: IRS Form 990-N

  94. International Reading Association Inc

    EIN 731369024 · Headquarters: Okeene, OK, US · Education · Latest available filing year: 2010 · Primary form: IRS Form 990-N

  95. International Reading Association Inc

    EIN 731425106 · Headquarters: Woodward, OK, US · Education · Latest available filing year: 2016 · Primary form: IRS Form 990-N

  96. International Reading Association Inc

    EIN 736106774 · Headquarters: Woodward, OK, US · Education · Latest available filing year: 2017 · Primary form: IRS Form 990-N

  97. International Reading Association Inc

    EIN 736106777 · Headquarters: Tulsa, OK, US · Education · Latest available filing year: 2016 · Primary form: IRS Form 990-N

  98. International Reading Association Inc

    EIN 930678514 · Headquarters: Stillwater, OK, US · Education · Latest available filing year: 2016 · Primary form: IRS Form 990-N

  99. International Sacred Arts Museum

    EIN 201864099 · Headquarters: Hugo, OK, US · Arts, Culture & Humanities · Latest available filing year: 2012 · Primary form: IRS Form 990-N

  100. International School of Hydrocarbon Measurement Inc

    EIN 731042758 · Headquarters: NORMAN, OK, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

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