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. Kappa Kappa Psi - Nu Pi Chapter

    EIN 990799744 · Headquarters: Stillwater, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  2. Kappa Kappa Psi - Nu Psi Chapter

    EIN 990829589 · Headquarters: Stillwater, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  3. Kappa Kappa Psi - Nu Rho Chapter

    EIN 990825666 · Headquarters: Stillwater, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  4. Kappa Kappa Psi - Nu Sigma Chapter

    EIN 990939267 · Headquarters: Stillwater, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  5. Kappa Kappa Psi - Nu Upsilon Chapter

    EIN 990670525 · Headquarters: Stillwater, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  6. Kappa Kappa Psi - Nu Xi Chapter

    EIN 990751149 · Headquarters: Stillwater, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  7. Kappa Kappa Psi - Xi Alpha Chapter

    EIN 990765206 · Headquarters: Stillwater, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  8. Kappa Kappa Psi - Xi Beta Chapter

    EIN 990737597 · Headquarters: Stillwater, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  9. Kappa Kappa Psi - Xi Delta

    EIN 934309765 · Headquarters: Stillwater, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  10. Kappa Kappa Psi - Xi Eta Chapter

    EIN 991237405 · Headquarters: Stillwater, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  11. Kappa Kappa Psi - Xi Gamma Chapter

    EIN 990686170 · Headquarters: Stillwater, OK, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  12. Kappa Kappa Psi - Xi Iota Chapter

    EIN 332572208 · Headquarters: Stillwater, OK, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  13. Kappa Kappa Psi - Xi Theta

    EIN 331757522 · Headquarters: Stillwater, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  14. Kappa Kappa Psi - Xi Zeta Chapter

    EIN 934338253 · Headquarters: Stillwater, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  15. Kappa Kappa Psi Fraternity

    EIN 232012022 · Headquarters: Stillwater, OK, US · Education · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  16. Kappa Kappa Psi Fraternity

    EIN 232012091 · Headquarters: Stillwater, OK, US · Education · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  17. Kappa Kappa Psi Fraternity

    EIN 232012093 · Headquarters: Stillwater, OK, US · Education · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  18. Kappa Kappa Psi Fraternity

    EIN 237270185 · Headquarters: Stillwater, OK, US · Education · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  19. Kappa Kappa Psi Fraternity

    EIN 251308740 · Headquarters: Stillwater, OK, US · Education · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  20. Kappa Kappa Psi Fraternity

    EIN 251308741 · Headquarters: Stillwater, OK, US · Education · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  21. Kappa Kappa Psi Fraternity

    EIN 421295213 · Headquarters: Stillwater, OK, US · Education · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  22. Kappa Kappa Psi Fraternity

    EIN 510202081 · Headquarters: Stillwater, OK, US · Arts, Culture & Humanities · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  23. Kappa Kappa Psi Fraternity

    EIN 510202083 · Headquarters: Stillwater, OK, US · Education · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  24. Kappa Kappa Psi Fraternity

    EIN 510202085 · Headquarters: Stillwater, OK, US · Education · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  25. Kappa Kappa Psi Fraternity

    EIN 510202086 · Headquarters: Stillwater, OK, US · Education · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  26. Kappa Kappa Psi Fraternity

    EIN 510202087 · Headquarters: Stillwater, OK, US · Education · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  27. Kappa Kappa Psi Fraternity

    EIN 510202088 · Headquarters: Stillwater, OK, US · Education · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  28. Kappa Kappa Psi Fraternity

    EIN 510202089 · Headquarters: Stillwater, OK, US · Education · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  29. Kappa Kappa Psi Fraternity

    EIN 510202091 · Headquarters: Stillwater, OK, US · Education · Latest available filing year: 2008 · Primary form: IRS Form 990-N

  30. Kappa Kappa Psi Fraternity

    EIN 510202092 · Headquarters: Stillwater, OK, US · Education · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  31. Kappa Kappa Psi Fraternity

    EIN 510202093 · Headquarters: Stillwater, OK, US · Education · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  32. Kappa Kappa Psi Fraternity

    EIN 510202094 · Headquarters: Stillwater, OK, US · Education · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  33. Kappa Kappa Psi Fraternity

    EIN 510202096 · Headquarters: Stillwater, OK, US · Education · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  34. Kappa Kappa Psi Fraternity

    EIN 510202097 · Headquarters: Stillwater, OK, US · Education · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  35. Kappa Kappa Psi Fraternity

    EIN 510202101 · Headquarters: Stillwater, OK, US · Education · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  36. Kappa Kappa Psi Fraternity

    EIN 510202102 · Headquarters: Stillwater, OK, US · Education · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  37. Kappa Kappa Psi Fraternity

    EIN 510202103 · Headquarters: Stillwater, OK, US · Education · Latest available filing year: 2008 · Primary form: IRS Form 990-N

  38. Kappa Kappa Psi Fraternity

    EIN 510202104 · Headquarters: Stillwater, OK, US · Education · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  39. Kappa Kappa Psi Fraternity

    EIN 510202105 · Headquarters: Stillwater, OK, US · Education · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  40. Kappa Kappa Psi Fraternity

    EIN 510202106 · Headquarters: Stillwater, OK, US · Education · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  41. Kappa Kappa Psi Fraternity

    EIN 510202107 · Headquarters: Stillwater, OK, US · Education · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  42. Kappa Kappa Psi Fraternity

    EIN 510202108 · Headquarters: Stillwater, OK, US · Education · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  43. Kappa Kappa Psi Fraternity

    EIN 510202109 · Headquarters: Stillwater, OK, US · Education · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  44. Kappa Kappa Psi Fraternity

    EIN 510202110 · Headquarters: Stillwater, OK, US · Education · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  45. Kappa Kappa Psi Fraternity

    EIN 510202112 · Headquarters: Stillwater, OK, US · Education · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  46. Kappa Kappa Psi Fraternity

    EIN 510202113 · Headquarters: Stillwater, OK, US · Education · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  47. Kappa Kappa Psi Fraternity

    EIN 510202115 · Headquarters: Stillwater, OK, US · Education · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  48. Kappa Kappa Psi Fraternity

    EIN 510202119 · Headquarters: Stillwater, OK, US · Education · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  49. Kappa Kappa Psi Fraternity

    EIN 510202122 · Headquarters: Stillwater, OK, US · Education · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  50. Kappa Kappa Psi Fraternity

    EIN 510202123 · Headquarters: Stillwater, OK, US · Education · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  51. Kappa Kappa Psi Fraternity

    EIN 510202127 · Headquarters: Stillwater, OK, US · Education · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  52. Kappa Kappa Psi Fraternity

    EIN 510202131 · Headquarters: Stillwater, OK, US · Education · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  53. Kappa Kappa Psi Fraternity

    EIN 510202135 · Headquarters: Stillwater, OK, US · Education · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  54. Kappa Kappa Psi Fraternity

    EIN 510202137 · Headquarters: Stillwater, OK, US · Education · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  55. Kappa Kappa Psi Fraternity

    EIN 510202139 · Headquarters: Stillwater, OK, US · Education · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  56. Kappa Kappa Psi Fraternity

    EIN 510202142 · Headquarters: Stillwater, OK, US · Education · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  57. Kappa Kappa Psi Fraternity

    EIN 510202146 · Headquarters: Stillwater, OK, US · Education · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  58. Kappa Kappa Psi Fraternity

    EIN 510202149 · Headquarters: Stillwater, OK, US · Education · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  59. Kappa Kappa Psi Fraternity

    EIN 510202151 · Headquarters: Stillwater, OK, US · Education · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  60. Kappa Kappa Psi Fraternity

    EIN 510202153 · Headquarters: Stillwater, OK, US · Education · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  61. Kappa Kappa Psi Fraternity

    EIN 510202156 · Headquarters: Stillwater, OK, US · Education · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  62. Kappa Kappa Psi Fraternity

    EIN 510202162 · Headquarters: Stillwater, OK, US · Education · Latest available filing year: 2008 · Primary form: IRS Form 990-N

  63. Kappa Kappa Psi Fraternity

    EIN 510202165 · Headquarters: Stillwater, OK, US · Education · Latest available filing year: 2013 · Primary form: IRS Form 990-N

  64. Kappa Kappa Psi Fraternity

    EIN 510202182 · Headquarters: Stillwater, OK, US · Education · Latest available filing year: 2008 · Primary form: IRS Form 990-N

  65. Kappa Kappa Psi Fraternity

    EIN 510202183 · Headquarters: Stillwater, OK, US · Education · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  66. Kappa Kappa Psi Fraternity

    EIN 510202185 · Headquarters: Stillwater, OK, US · Education · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  67. Kappa Kappa Psi Fraternity

    EIN 510202190 · Headquarters: Stillwater, OK, US · Education · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  68. Kappa Kappa Psi Fraternity

    EIN 510202192 · Headquarters: Stillwater, OK, US · Education · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  69. Kappa Kappa Psi Fraternity

    EIN 510202193 · Headquarters: Stillwater, OK, US · Education · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  70. Kappa Kappa Psi Fraternity

    EIN 510202195 · Headquarters: Stillwater, OK, US · Education · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  71. Kappa Kappa Psi Fraternity

    EIN 510202196 · Headquarters: Stillwater, OK, US · Education · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  72. Kappa Kappa Psi Fraternity

    EIN 510202198 · Headquarters: Stillwater, OK, US · Education · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  73. Kappa Kappa Psi Fraternity

    EIN 510202200 · Headquarters: Stillwater, OK, US · Education · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  74. Kappa Kappa Psi Fraternity

    EIN 510202205 · Headquarters: Stillwater, OK, US · Education · Latest available filing year: 2017 · Primary form: IRS Form 990-N

  75. Kappa Kappa Psi Fraternity

    EIN 510202221 · Headquarters: Stillwater, OK, US · Education · Latest available filing year: 2017 · Primary form: IRS Form 990-N

  76. Kappa Kappa Psi Fraternity

    EIN 510202224 · Headquarters: Stillwater, OK, US · Education · Latest available filing year: 2017 · Primary form: IRS Form 990-N

  77. Kappa Kappa Psi Fraternity

    EIN 510202227 · Headquarters: Stillwater, OK, US · Education · Latest available filing year: 2017 · Primary form: IRS Form 990-N

  78. Kappa Kappa Psi Fraternity

    EIN 510202229 · Headquarters: Stillwater, OK, US · Education · Latest available filing year: 2008 · Primary form: IRS Form 990-N

  79. Kappa Kappa Psi Fraternity

    EIN 510202232 · Headquarters: Stillwater, OK, US · Education · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  80. Kappa Kappa Psi Fraternity

    EIN 510202236 · Headquarters: Stillwater, OK, US · Education · Latest available filing year: 2017 · Primary form: IRS Form 990-N

  81. Kappa Kappa Psi Fraternity

    EIN 510202242 · Headquarters: Stillwater, OK, US · Education · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  82. Kappa Kappa Psi Fraternity

    EIN 510202244 · Headquarters: Stillwater, OK, US · Education · Latest available filing year: 2017 · Primary form: IRS Form 990-N

  83. Kappa Kappa Psi Fraternity

    EIN 510202245 · Headquarters: Stillwater, OK, US · Education · Latest available filing year: 2017 · Primary form: IRS Form 990-N

  84. Kappa Kappa Psi Fraternity

    EIN 510202247 · Headquarters: Stillwater, OK, US · Education · Latest available filing year: 2017 · Primary form: IRS Form 990-N

  85. Kappa Kappa Psi Fraternity

    EIN 510202257 · Headquarters: Stillwater, OK, US · Education · Latest available filing year: 2017 · Primary form: IRS Form 990-N

  86. Kappa Kappa Psi Fraternity

    EIN 510202258 · Headquarters: Stillwater, OK, US · Education · Latest available filing year: 2017 · Primary form: IRS Form 990-N

  87. Kappa Kappa Psi Fraternity

    EIN 510202259 · Headquarters: Stillwater, OK, US · Education · Latest available filing year: 2017 · Primary form: IRS Form 990-N

  88. Kappa Kappa Psi Fraternity

    EIN 510202260 · Headquarters: Stillwater, OK, US · Education · Latest available filing year: 2017 · Primary form: IRS Form 990-N

  89. Kappa Kappa Psi Fraternity

    EIN 510202261 · Headquarters: Stillwater, OK, US · Education · Latest available filing year: 2017 · Primary form: IRS Form 990-N

  90. Kappa Kappa Psi Fraternity

    EIN 510202263 · Headquarters: Stillwater, OK, US · Education · Latest available filing year: 2017 · Primary form: IRS Form 990-N

  91. Kappa Kappa Psi Fraternity

    EIN 510202265 · Headquarters: Stillwater, OK, US · Education · Latest available filing year: 2017 · Primary form: IRS Form 990-N

  92. Kappa Kappa Psi Fraternity

    EIN 510202266 · Headquarters: Stillwater, OK, US · Education · Latest available filing year: 2017 · Primary form: IRS Form 990-N

  93. Kappa Kappa Psi Fraternity

    EIN 510202269 · Headquarters: Stillwater, OK, US · Education · Latest available filing year: 2017 · Primary form: IRS Form 990-N

  94. Kappa Kappa Psi Fraternity

    EIN 510202270 · Headquarters: Stillwater, OK, US · Education · Latest available filing year: 2017 · Primary form: IRS Form 990-N

  95. Kappa Kappa Psi Fraternity

    EIN 510202271 · Headquarters: Stillwater, OK, US · Education · Latest available filing year: 2008 · Primary form: IRS Form 990-N

  96. Kappa Kappa Psi Fraternity

    EIN 510202272 · Headquarters: Stillwater, OK, US · Education · Latest available filing year: 2017 · Primary form: IRS Form 990-N

  97. Kappa Kappa Psi Fraternity

    EIN 510202273 · Headquarters: Stillwater, OK, US · Education · Latest available filing year: 2017 · Primary form: IRS Form 990-N

  98. Kappa Kappa Psi Fraternity

    EIN 510202300 · Headquarters: Stillwater, OK, US · Education · Latest available filing year: 2017 · Primary form: IRS Form 990-N

  99. Kappa Kappa Psi Fraternity

    EIN 510202302 · Headquarters: Stillwater, OK, US · Education · Latest available filing year: 2017 · Primary form: IRS Form 990-N

  100. Kappa Kappa Psi Fraternity

    EIN 510202306 · Headquarters: Stillwater, OK, US · Education · Latest available filing year: 2017 · Primary form: IRS Form 990-N

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