Unknown & Unclassified nonprofits in Oklahoma

Unknown & Unclassified nonprofits in Oklahoma. Browse 6,510 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 237205314 · Headquarters: Tulsa, OK, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  2. National Kappa Kappa Iota Inc

    EIN 237444452 · Headquarters: Tulsa, OK, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  3. National Kappa Kappa Iota Inc

    EIN 730737343 · Headquarters: TULSA, OK, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  4. National Kappa Kappa Iota Inc

    EIN 731031304 · Headquarters: Tulsa, OK, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  5. National Kappa Kappa Iota Inc

    EIN 731184301 · Headquarters: Tulsa, OK, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  6. National Kappa Kappa Iota Inc

    EIN 731200513 · Headquarters: Tulsa, OK, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  7. National Kappa Kappa Iota Inc

    EIN 731200519 · Headquarters: Tulsa, OK, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  8. National Kappa Kappa Iota Inc

    EIN 731200521 · Headquarters: Tulsa, OK, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  9. National Kappa Kappa Iota Inc

    EIN 731200526 · Headquarters: Tulsa, OK, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  10. National Kappa Kappa Iota Inc

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

  11. National Kappa Kappa Iota Inc

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

  12. National Kappa Kappa Iota Inc

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

  13. National Kappa Kappa Iota Inc

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

  14. National Kappa Kappa Iota Inc

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

  15. National Kappa Kappa Iota Inc

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

  16. 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

  17. National Kappa Kappa Iota Inc

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

  18. National Kappa Kappa Iota Inc

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

  19. National Kappa Kappa Iota Inc

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

  20. National Kappa Kappa Iota Inc

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

  21. National Kappa Kappa Iota Inc

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

  22. National Kappa Kappa Iota Inc

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

  23. National Kappa Kappa Iota Inc

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

  24. National Kappa Kappa Iota Inc

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

  25. National Kappa Kappa Iota Inc

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

  26. National Livestock Credit Corporation

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

  27. National Management Association

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

  28. 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

  29. 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

  30. 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

  31. 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

  32. National Rural Water Association

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

  33. National School Chaplain Assoc Inc

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

  34. National School Public Relations Association

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

  35. 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

  36. 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

  37. 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

  38. 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

  39. 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

  40. 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

  41. 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

  42. 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

  43. 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

  44. 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

  45. 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

  46. 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

  47. 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

  48. 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

  49. 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

  50. 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

  51. 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

  52. 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

  53. 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

  54. 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

  55. 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

  56. 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

  57. 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

  58. 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

  59. 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

  60. 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

  61. 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

  62. 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

  63. 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

  64. 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

  65. 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

  66. National Society of the Daughters of the American Revolution

    EIN 731357269 · Headquarters: Chouteau, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  67. National Society of the Daughters of the American Revolution

    EIN 731378730 · Headquarters: FORT TOWSON, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  68. National Society of the Daughters of the American Revolution

    EIN 736096809 · Headquarters: Oklahoma City, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  69. National Society of the Daughters of the American Revolution

    EIN 736097370 · Headquarters: Marland, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  70. National Society of the Daughters of the American Revolution

    EIN 736099219 · Headquarters: Tulsa, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  71. National Society of the Daughters of the American Revolution

    EIN 736100074 · Headquarters: Muskogee, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  72. National Society of the Daughters of the American Revolution

    EIN 736102137 · Headquarters: Bartlesville, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  73. National Society of the Daughters of the American Revolution

    EIN 736102140 · Headquarters: Cushing, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  74. National Society of the Daughters of the American Revolution

    EIN 736102141 · Headquarters: NORMAN, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  75. National Society of the Daughters of the American Revolution

    EIN 736102143 · Headquarters: Tahlequah, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  76. National Society of the Daughters of the American Revolution

    EIN 736102145 · Headquarters: Woodward, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  77. National Society of the Daughters of the American Revolution

    EIN 736102335 · Headquarters: Ardmore, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  78. National Society of the Daughters of the American Revolution

    EIN 736102336 · Headquarters: Clinton, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  79. National Society of the Daughters of the American Revolution

    EIN 736102337 · Headquarters: Duncan, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  80. National Society of the Daughters of the American Revolution

    EIN 736102338 · Headquarters: Durant, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  81. National Society of the Daughters of the American Revolution

    EIN 736102339 · Headquarters: Enid, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  82. National Society of the Daughters of the American Revolution

    EIN 736102345 · Headquarters: Oklahoma City, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  83. National Society of the Daughters of the American Revolution

    EIN 736102347 · Headquarters: Sapulpa, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  84. National Society of the Daughters of the American Revolution

    EIN 736102348 · Headquarters: SEMINOLE, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  85. National Society of the Daughters of the American Revolution

    EIN 736102349 · Headquarters: Stillwater, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  86. National Society of the Daughters of the American Revolution

    EIN 736102350 · Headquarters: Tulsa, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  87. National Society of the Daughters of the American Revolution

    EIN 736102351 · Headquarters: vinita, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  88. National Society of the Daughters of the American Revolution

    EIN 736102752 · Headquarters: OKLAHOMA CITY, 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 736102950 · Headquarters: Tulsa, 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 736103641 · Headquarters: Alva, 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 736104089 · Headquarters: Lawton, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  92. National Society of the Daughters of the American Revolution

    EIN 900438243 · Headquarters: Yukon, 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 990386294 · Headquarters: Tulsa, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  94. National Society of the Sons of the American Revolution

    EIN 271427090 · Headquarters: Ardmore, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  95. National Society of the Sons of the American Revolution

    EIN 311227163 · Headquarters: Mustang, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  96. National Society of the Sons of the American Revolution

    EIN 331576764 · Headquarters: Mustang, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  97. National Society of the Sons of the American Revolution

    EIN 455368180 · Headquarters: BARTLESVILLE, OK, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  98. National Society of the Sons of the American Revolution

    EIN 731255474 · Headquarters: NORMAN, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  99. National Society of the Sons of the American Revolution

    EIN 736102585 · Headquarters: Broken Arrow, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  100. National Society of the Sons of the American Revolution

    EIN 736103159 · Headquarters: Edmond, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

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