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. Oklahoma State Union of the Farmers Edu- Cational & Cooperative Union of America

    EIN 730235820 · Headquarters: Oklahoma City, OK, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  2. Oklahoma Steel Guitar Association

    EIN 731440284 · Headquarters: MOUNDS, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  3. Oklahoma Stewardship Council Inc

    EIN 475596112 · Headquarters: Oklahoma City, OK, US · Unknown & Unclassified · Latest available filing year: 2015 · Primary form: IRS Form 990-N

  4. Oklahoma Suna Society of Urologic Nurses and Associates

    EIN 800219654 · Headquarters: Edmond, OK, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  5. Oklahoma Swift Academy Inc

    EIN 851285212 · Headquarters: Broken Arrow, OK, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  6. Oklahoma Swimming Inc

    EIN 311012862 · Headquarters: BROKEN ARROW, OK, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  7. Oklahoma Telephone Association

    EIN 730384315 · Headquarters: OKLAHOMA CITY, OK, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  8. Oklahoma Texas Panhandle Chapter of Ida

    EIN 731080839 · Headquarters: OKLAHOMA CITY, OK, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  9. Oklahoma Titans Football Association Inc

    EIN 473535081 · Headquarters: KELLYVILLE, OK, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  10. Oklahoma Transit Association PMB # 13281

    EIN 752129006 · Headquarters: Oklahoma City, OK, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  11. Oklahoma Travel Industry Association

    EIN 731301841 · Headquarters: OKLAHOMA CITY, OK, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  12. Oklahoma Trial Judges Association

    EIN 731519195 · Headquarters: Oklahoma City, OK, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  13. Oklahoma Trucking Association

    EIN 730132840 · Headquarters: Oklahoma City, OK, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  14. Oklahoma Turnaround Fund

    EIN 832545172 · Headquarters: NORMAN, OK, USA · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990

  15. Oklahoma United 2031

    EIN 921075723 · Headquarters: MINCO, OK, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  16. Oklahoma United for Progress Inc

    EIN 861617355 · Headquarters: TULSA, OK, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  17. Oklahoma Urban and Community Forestry Council Inc

    EIN 731385498 · Headquarters: OKLAHOMA CITY, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  18. Oklahoma Venture Forum

    EIN 731294392 · Headquarters: OKLAHOMA CITY, OK, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  19. Oklahoma Veterans Council

    EIN 731286535 · Headquarters: Duncan, OK, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  20. Oklahoma Veterans Memorial

    EIN 731209026 · Headquarters: Oklahoma City, OK, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  21. Oklahoma Veterinary Medical Association

    EIN 731160358 · Headquarters: OKLAHOMA CITY, OK, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  22. Oklahoma Vocational Ag Teacher's Association

    EIN 731172026 · Headquarters: STILLWATER, OK, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  23. Oklahoma Well Log Library Inc

    EIN 730708636 · Headquarters: Tulsa, OK, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  24. Oklahoma Wheat Growers Association

    EIN 730707334 · Headquarters: ENID, OK, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  25. Oklahoma Women Veterans Organization Inc

    EIN 731279885 · Headquarters: CHOCTAW, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  26. Oklahoma Workforce and Citizens of Tomorrow Coalitioninc

    EIN 813640584 · Headquarters: OKLAHOMA CITY, OK, USA · Unknown & Unclassified · Latest available filing year: 2018 · Primary form: IRS Form 990

  27. Oklahoma Wrecker Owners Association

    EIN 731172982 · Headquarters: Oklahoma City, OK, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  28. Oklahoma Writers Federation Inc

    EIN 731318789 · Headquarters: POTEAU, OK, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-EZ

  29. Oklahoma's Red Carpet Country Inc

    EIN 730733019 · Headquarters: ENID, OK, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  30. Oklahoma-Texas Meat Processors Association

    EIN 510190139 · Headquarters: Perkins, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  31. Oklahomalionspintradersclubinc

    EIN 710973759 · Headquarters: Ponca City, OK, US · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  32. Oklahomans for Energy and Jobs

    EIN 731099314 · Headquarters: Oklahoma City, OK, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  33. Oklahomans for Equality Inc

    EIN 731300864 · Headquarters: TULSA, OK, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  34. Oklahomans for Fiscal Responsibility C/o Frederic Dorwart

    EIN 272563645 · Headquarters: TULSA, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  35. Oklahomans for Healthcare Access Inc

    EIN 464274761 · Headquarters: Tulsa, OK, US · Unknown & Unclassified · Latest available filing year: 2015 · Primary form: IRS Form 990-N

  36. Oklahomans for Life Inc

    EIN 731052851 · Headquarters: Tulsa, OK, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  37. Oklahomans for Responsible Water Policy Now

    EIN 451200265 · Headquarters: BROKEN BOW, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  38. Oklahomas Credit Union

    EIN 736093655 · Headquarters: Oklahoma City, OK, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990

  39. Oklahombres Inc

    EIN 731350754 · Headquarters: Oklahoma City, OK, US · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  40. Okmulgee Chamber of Commerce

    EIN 730366969 · Headquarters: OKMULGEE, OK, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  41. Okmulgee County Cattlemens Associa

    EIN 800498625 · Headquarters: OKMULGEE, OK, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  42. Okmulgee County Humane Society

    EIN 731143270 · Headquarters: OKMULGEE, OK, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  43. Okmulgee Education Foundation

    EIN 731439808 · Headquarters: OKMULGEE, OK, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  44. Okmulgee Elks Lodge 1822

    EIN 730722963 · Headquarters: OKMULGEE, OK, USA · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-EZ

  45. Okmulgee Fraternal Order of Police Lodge 96 Inc

    EIN 237176960 · Headquarters: Okmulgee, OK, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  46. Okmulgee Medical Foundation Inc

    EIN 730766656 · Headquarters: OKMULGEE, OK, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  47. Okmulgee Service League Inc

    EIN 730761371 · Headquarters: Okmulgee, OK, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  48. Okrlca Auxilary

    EIN 800302845 · Headquarters: Gate, OK, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  49. OldGreer County Museun and Hall of Fame Inc

    EIN 237426496 · Headquarters: Mangum, OK, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  50. Oliver PTA

    EIN 731472601 · Headquarters: Broken Arrow, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  51. Omeg Vision for Humanity Inc

    EIN 334202399 · Headquarters: Jenks, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  52. Omega Psi Phi Fraternity

    EIN 450605724 · Headquarters: Edmond, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  53. Omega Psi Phi Fraternity

    EIN 736110763 · Headquarters: OKLAHOMA CITY, OK, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  54. On Holy Ground Ministries

    EIN 731272184 · Headquarters: Del City, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  55. On Stage Woodward

    EIN 731083004 · Headquarters: WOODWARD, OK, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  56. On White Horses

    EIN 270426195 · Headquarters: PADEN, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  57. Onaben

    EIN 931064121 · Headquarters: TULSA, OK, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  58. Oncology Nursing Society

    EIN 731296625 · Headquarters: Broken Arrow, OK, US · Unknown & Unclassified · Latest available filing year: 2017 · Primary form: IRS Form 990-N

  59. ONE Gas Inc NBU VEBA Master Trust

    EIN 320430913 · Headquarters: TULSA, OK, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  60. One to the Other Ministries Inc

    EIN 731318805 · Headquarters: TULSA, OK, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-EZ

  61. ONEOK Inc Employees Retiree Medical Benefit Trust

    EIN 364090934 · Headquarters: TULSA, OK, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  62. Ongoers

    EIN 731068821 · Headquarters: Tulsa, OK, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  63. Oolagah Talala Public School Foundation Inc

    EIN 731353563 · Headquarters: Owasso, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  64. Oologah Talala Fishing Team

    EIN 922236487 · Headquarters: TALALA, OK, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  65. Open Government Initiative Incorporated

    EIN 332895729 · Headquarters: Midwest City, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  66. Operation Aware of Oklahoma

    EIN 731112912 · Headquarters: TULSA, OK, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  67. Opportunities Development Corporation

    EIN 160912651 · Headquarters: Watonga, OK, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  68. Opportunity to Learn Foundation C/o Craig Heaton

    EIN 856710297 · Headquarters: NORMAN, OK, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  69. Optimist Club of Norman

    EIN 237106509 · Headquarters: NORMAN, OK, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  70. Optimist International

    EIN 736097041 · Headquarters: Muskogee, OK, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  71. Optimist International

    EIN 736112899 · Headquarters: Bixby, OK, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  72. Optimist International

    EIN 736117516 · Headquarters: Bethany, OK, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990

  73. Optimist International 07155 Iib Oc of Tulsa Oklahoma

    EIN 814150234 · Headquarters: TULSA, OK, USA · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-EZ

  74. Order of Easter Star of Oklahoma

    EIN 237526970 · Headquarters: DEWEY, OK, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  75. Order of Eastern Star of Louisiana Queen Esther Chapter No 199

    EIN 934978827 · Headquarters: Midwest City, OK, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  76. Order of Eastern Star of Oklahoma

    EIN 208875222 · Headquarters: Maud, OK, US · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  77. Order of Eastern Star of Oklahoma

    EIN 237526849 · Headquarters: ATOKA, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  78. Order of Eastern Star of Oklahoma

    EIN 237526850 · Headquarters: MCALESTER, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  79. Order of Eastern Star of Oklahoma

    EIN 237526852 · Headquarters: Muldrow, OK, US · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  80. Order of Eastern Star of Oklahoma

    EIN 237526853 · Headquarters: GUTHRIE, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  81. Order of Eastern Star of Oklahoma

    EIN 237526858 · Headquarters: Nowata, OK, US · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  82. Order of Eastern Star of Oklahoma

    EIN 237526859 · Headquarters: CHECOTAH, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  83. Order of Eastern Star of Oklahoma

    EIN 237526862 · Headquarters: Tecumseh, OK, US · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  84. Order of Eastern Star of Oklahoma

    EIN 237526866 · Headquarters: ENID, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  85. Order of Eastern Star of Oklahoma

    EIN 237526868 · Headquarters: MARLOW, OK, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  86. Order of Eastern Star of Oklahoma

    EIN 237526869 · Headquarters: DUNCAN, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  87. Order of Eastern Star of Oklahoma

    EIN 237526870 · Headquarters: KINGFISHER, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  88. Order of Eastern Star of Oklahoma

    EIN 237526871 · Headquarters: NORMAN, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  89. Order of Eastern Star of Oklahoma

    EIN 237526874 · Headquarters: ALTUS, OK, US · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  90. Order of Eastern Star of Oklahoma

    EIN 237526879 · Headquarters: MARAMEC, OK, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  91. Order of Eastern Star of Oklahoma

    EIN 237526883 · Headquarters: Coalgate, OK, US · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  92. Order of Eastern Star of Oklahoma

    EIN 237526885 · Headquarters: CHICKASHA, OK, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  93. Order of Eastern Star of Oklahoma

    EIN 237526892 · Headquarters: DIBBLE, OK, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  94. Order of Eastern Star of Oklahoma

    EIN 237526901 · Headquarters: Elk City, OK, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  95. Order of Eastern Star of Oklahoma

    EIN 237526904 · Headquarters: CLAREMORE, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  96. Order of Eastern Star of Oklahoma

    EIN 237526908 · Headquarters: Alva, OK, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  97. Order of Eastern Star of Oklahoma

    EIN 237526913 · Headquarters: TISHOMINGO, OK, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  98. Order of Eastern Star of Oklahoma

    EIN 237526921 · Headquarters: WOODWARD, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  99. Order of Eastern Star of Oklahoma

    EIN 237526937 · Headquarters: Broken Arrow, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  100. Order of Eastern Star of Oklahoma

    EIN 237526940 · Headquarters: SPIRO, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

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