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. National Kappa Kappa Iota Inc

    EIN 731200553 · Headquarters: Tulsa, OK, US · Education · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  2. National Kappa Kappa Iota Inc

    EIN 731200564 · Headquarters: MOORELAND, OK, USA · Education · Latest available filing year: 2011 · Primary form: IRS Form 990-EZ

  3. National Kappa Kappa Iota Inc

    EIN 731200567 · Headquarters: Tulsa, OK, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  4. National Kappa Kappa Iota Inc

    EIN 731202803 · Headquarters: Carnegie, OK, US · Education · Latest available filing year: 2007 · Primary form: IRS Form 990-N

  5. National Kappa Kappa Iota Inc

    EIN 731202805 · Headquarters: Kingfisher, OK, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  6. National Kappa Kappa Iota Inc

    EIN 731202807 · Headquarters: Guymon, OK, US · Education · Latest available filing year: 2011 · Primary form: IRS Form 990-N

  7. National Kappa Kappa Iota Inc

    EIN 731202809 · Headquarters: Tulsa, OK, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  8. National Kappa Kappa Iota Inc

    EIN 731202819 · Headquarters: Norman, OK, US · Education · Latest available filing year: 2007 · Primary form: IRS Form 990-N

  9. National Kappa Kappa Iota Inc

    EIN 731202820 · Headquarters: Bsrtlesville, OK, US · Education · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  10. National Kappa Kappa Iota Inc

    EIN 731202826 · Headquarters: Muskogee, OK, US · Education · Latest available filing year: 2007 · Primary form: IRS Form 990-N

  11. National Kappa Kappa Iota Inc

    EIN 731202828 · Headquarters: Tulsa, OK, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  12. National Kappa Kappa Iota Inc

    EIN 731202835 · Headquarters: Stillwater, OK, US · Education · Latest available filing year: 2007 · Primary form: IRS Form 990-N

  13. National Kappa Kappa Iota Inc

    EIN 731202840 · Headquarters: Owasso, OK, US · Education · Latest available filing year: 2013 · Primary form: IRS Form 990-N

  14. National Kappa Kappa Iota Inc

    EIN 731202841 · Headquarters: Lawton, OK, US · Education · Latest available filing year: 2010 · Primary form: IRS Form 990-N

  15. National Kappa Kappa Iota Inc

    EIN 731202842 · Headquarters: Tulsa, OK, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  16. National Kappa Kappa Iota Inc

    EIN 731202855 · Headquarters: Choctaw, OK, US · Education · Latest available filing year: 2008 · Primary form: IRS Form 990-N

  17. National Kappa Kappa Iota Inc

    EIN 731203212 · Headquarters: Broken Arrow, OK, US · Education · Latest available filing year: 2010 · Primary form: IRS Form 990-N

  18. National Kappa Kappa Iota Inc

    EIN 731203389 · Headquarters: Tulsa, OK, US · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  19. National Kappa Kappa Iota Inc

    EIN 731203391 · Headquarters: Midwest City, OK, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  20. National Kappa Kappa Iota Inc

    EIN 731203395 · Headquarters: TULSA, OK, US · Education · Latest available filing year: 2008 · Primary form: IRS Form 990-N

  21. National Kappa Kappa Iota Inc

    EIN 731203404 · Headquarters: Tulsa, OK, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  22. National Kappa Kappa Iota Inc

    EIN 731203439 · Headquarters: Cushing, OK, US · Education · Latest available filing year: 2014 · Primary form: IRS Form 990-N

  23. National Kappa Kappa Iota Inc

    EIN 731203441 · Headquarters: Broken Arrow, OK, US · Education · Latest available filing year: 2007 · Primary form: IRS Form 990-N

  24. National Kappa Kappa Iota Inc

    EIN 731284790 · Headquarters: Tulsa, OK, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  25. National Kappa Kappa Iota Inc

    EIN 731358371 · Headquarters: Yukon, OK, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  26. National Kappa Kappa Iota Inc

    EIN 731385917 · Headquarters: Locust Grove, OK, US · Education · Latest available filing year: 2007 · Primary form: IRS Form 990-N

  27. National Kappa Kappa Iota Inc

    EIN 731469809 · Headquarters: Tulsa, OK, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  28. National Kappa Kappa Iota Inc

    EIN 731481645 · Headquarters: Tulsa, OK, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  29. National Kappa Kappa Iota Inc

    EIN 742307449 · Headquarters: Tulsa, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  30. National Kappa Kappa Iota Inc

    EIN 742307553 · Headquarters: Tulsa, OK, US · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  31. National Kappa Kappa Iota Inc

    EIN 742307554 · Headquarters: Tulsa, OK, US · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  32. National Kappa Kappa Iota Inc

    EIN 742307663 · Headquarters: Tulsa, OK, US · Education · Latest available filing year: 2014 · Primary form: IRS Form 990-N

  33. National Kappa Kappa Iota Inc

    EIN 742307855 · Headquarters: Tulsa, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  34. National Kappa Kappa Iota Inc

    EIN 742548758 · Headquarters: Tulss, OK, US · Education · Latest available filing year: 2013 · Primary form: IRS Form 990-N

  35. National Kitchen & Bath Assoc

    EIN 731559095 · Headquarters: Bethany, OK, US · Community Improvement & Capacity Building · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  36. National League for Nursing Inc

    EIN 510248584 · Headquarters: Broken Arrow, OK, US · Health Care · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  37. National Lenders Insurance Council

    EIN 521988024 · Headquarters: Oklahoma City, OK, US · Mutual & Membership Benefit · Latest available filing year: 2010 · Primary form: IRS Form 990-N

  38. National Livestock Credit Corporation

    EIN 730369300 · Headquarters: OKLAHOMA CITY, OK, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  39. National Management Association

    EIN 475566368 · Headquarters: Oklahoma City, OK, US · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  40. National Museum of Knitting

    EIN 860664020 · Headquarters: Hugo, OK, US · Arts, Culture & Humanities · Latest available filing year: 2012 · Primary form: IRS Form 990-N

  41. National Native American Emergency

    EIN 860959145 · Headquarters: PARK HILL, OK, USA · Health Care · Latest available filing year: 2011 · Primary form: IRS Form 990-EZ

  42. National Omega Care Foundation

    EIN 202278481 · Headquarters: Oklahoma City, OK, US · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  43. National Organization of Alpha Sigma Kappa Women in Technical Stu

    EIN 731495568 · Headquarters: Norman, OK, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  44. National Organization of Black Law Enforcement Executives Noble

    EIN 933463461 · Headquarters: Muskogee, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  45. National Organization of Mothers of Twins Clubs Inc

    EIN 461852603 · Headquarters: TUTTLE, OK, US · Human Services · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  46. National Organization of Mothers of Twins Clubs Inc

    EIN 521484951 · Headquarters: NORMAN, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  47. National Organization of Mothers of Twins Clubs Inc

    EIN 731176571 · Headquarters: EDMOND, OK, US · Human Services · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  48. National Organization of Mothers of Twins Clubs Inc

    EIN 731416339 · Headquarters: LAWTON, OK, US · Human Services · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  49. National Organization of Poll-ettes

    EIN 756063526 · Headquarters: Chattanooga, OK, US · Food, Agriculture & Nutrition · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  50. National Pan Hellenic Council Nphc of Lawton Fort Sill Oklahoma

    EIN 843823869 · Headquarters: Lawton, OK, US · Public & Societal Benefit · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  51. National Paralegal Foundation

    EIN 205322970 · Headquarters: Tulsa, OK, US · Crime & Legal Related · Latest available filing year: 2010 · Primary form: IRS Form 990-N

  52. National Postal Mail Handlers 324 of Laborers International Union

    EIN 731059830 · Headquarters: OKLAHOMA CITY, OK, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  53. National Reining Horse Association

    EIN 310826605 · Headquarters: OKLAHOMA CITY, OK, USA · Food, Agriculture & Nutrition · Latest available filing year: 2024 · Primary form: IRS Form 990

  54. National Rod & Custom Car Hall of Fame Foundation

    EIN 731548396 · Headquarters: Afton, OK, US · Arts, Culture & Humanities · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  55. National Rural Letter Carriers Association

    EIN 237235161 · Headquarters: Collinsville, OK, US · Employment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  56. National Rural Letter Carriers Association

    EIN 237237830 · Headquarters: Collinsville, OK, US · Employment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  57. National Rural Letter Carriers Association

    EIN 237335195 · Headquarters: Collinsville, OK, US · Employment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  58. National Rural Water Association

    EIN 731006395 · Headquarters: Duncan, OK, United States · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  59. National School Attorneys Association

    EIN 923456442 · Headquarters: OKLAHOMA CITY, OK, USA · Education · Latest available filing year: 2024 · Primary form: IRS Form 990

  60. National School Chaplain Assoc Inc

    EIN 760324439 · Headquarters: NORMAN, OK, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  61. National School Public Relations Association

    EIN 731030723 · Headquarters: Lawton, OK, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  62. National Seed Corn Museum

    EIN 421330830 · Headquarters: Hugo, OK, US · Arts, Culture & Humanities · Latest available filing year: 2012 · Primary form: IRS Form 990-N

  63. National Senior Softball Hall of Fame Inc

    EIN 262978420 · Headquarters: MUSTANG, OK, US · Unknown & Unclassified · Latest available filing year: 2008 · Primary form: IRS Form 990-N

  64. National Silver Dollar Roundtable

    EIN 521384071 · Headquarters: BROKEN ARROW, OK, US · Education · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  65. National Society Children of the Am Erican Revolution - Bartlesville

    EIN 383988268 · Headquarters: Bartlesville, OK, US · Youth Development · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  66. National Society Colonel Dames Xvii Century

    EIN 736118993 · Headquarters: Claremore, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  67. National Society Colonel Dames Xvii Century

    EIN 736118994 · Headquarters: Enid, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  68. National Society Colonial Dames Xvii Century

    EIN 731045875 · Headquarters: Ardmore, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  69. National Society Colonial Dames Xvii Century

    EIN 736102618 · Headquarters: Edmond, OK, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  70. National Society Colonial Dames Xvii Century

    EIN 736118995 · Headquarters: Edmond, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  71. National Society Colonial Dames Xvii Century 1812

    EIN 731533501 · Headquarters: Blanchard, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  72. National Society Dames of the Court of Honor

    EIN 521277010 · Headquarters: Sapulpa, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  73. National Society Daughters of American Colonists

    EIN 273905640 · Headquarters: Ardmore, OK, US · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  74. National Society Daughters of Founders Patriots of America

    EIN 237584676 · Headquarters: Tulsa, OK, US · Arts, Culture & Humanities · Latest available filing year: 2007 · Primary form: IRS Form 990-N

  75. National Society Daughters of the American Revolution

    EIN 463981310 · Headquarters: Newcastle, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  76. National Society Daughters of the Union 1861-1865 Inc

    EIN 911999210 · Headquarters: Stillwater, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  77. National Society of Accountants for Cooperatives

    EIN 953690630 · Headquarters: Henryetta, OK, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  78. National Society of Black Engineers

    EIN 208365539 · Headquarters: Tulsa, OK, US · Education · Latest available filing year: 2008 · Primary form: IRS Form 990-N

  79. National Society of Colonial Dames of America in the State of Oklahom

    EIN 736107908 · Headquarters: Nichols Hills, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  80. National Society of New England Women

    EIN 510151524 · Headquarters: Lawton, OK, US · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  81. National Society of the Children of the American Revolution

    EIN 461184646 · Headquarters: Oklahoma City, OK, US · Arts, Culture & Humanities · Latest available filing year: 2014 · Primary form: IRS Form 990-N

  82. National Society of the Children of the American Revolution

    EIN 611562142 · Headquarters: Bethany, OK, US · Arts, Culture & Humanities · Latest available filing year: 2017 · Primary form: IRS Form 990-N

  83. National Society of the Children of the American Revolution

    EIN 800814895 · Headquarters: Tishomingo, OK, US · Arts, Culture & Humanities · Latest available filing year: 2014 · Primary form: IRS Form 990-N

  84. National Society of the Children of the American Revolution

    EIN 830511551 · Headquarters: OKLAHOMA CITY, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  85. National Society of the Children of the American Revolution

    EIN 834394865 · Headquarters: Oklahoma City, OK, US · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  86. National Society of the Children of the American Revolution

    EIN 900430944 · Headquarters: Broken Arrow, OK, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  87. National Society of the Children of the American Revolution

    EIN 900430945 · Headquarters: Lawton, OK, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  88. National Society of the Children of the American Revolution Oklahoma

    EIN 237248868 · Headquarters: Choctaw, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  89. National Society of the Daughters of the American Revolution

    EIN 237025963 · Headquarters: MCALESTER, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  90. National Society of the Daughters of the American Revolution

    EIN 237109207 · Headquarters: Ada, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  91. National Society of the Daughters of the American Revolution

    EIN 237442616 · Headquarters: Atoka, OK, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  92. National Society of the Daughters of the American Revolution

    EIN 260561915 · Headquarters: Sand Springs, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  93. National Society of the Daughters of the American Revolution

    EIN 264329320 · Headquarters: Owasso, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  94. National Society of the Daughters of the American Revolution

    EIN 271601086 · Headquarters: Mounds, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  95. National Society of the Daughters of the American Revolution

    EIN 471317242 · Headquarters: TULSA, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  96. National Society of the Daughters of the American Revolution

    EIN 521231743 · Headquarters: Choctaw, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  97. National Society of the Daughters of the American Revolution

    EIN 731005152 · Headquarters: Edmond, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  98. National Society of the Daughters of the American Revolution

    EIN 731094826 · Headquarters: MIDWEST CITY, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  99. National Society of the Daughters of the American Revolution

    EIN 731101804 · Headquarters: Chelsea, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  100. National Society of the Daughters of the American Revolution

    EIN 731175141 · Headquarters: Oklahoma City, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

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