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 Petroleum Marketers & Convenience Stores Association Inc

    EIN 730709109 · Headquarters: OKLAHOMA CITY, OK, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  2. Oklahoma Pharmacists Association

    EIN 730582468 · Headquarters: Ardmore, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  3. Oklahoma Pharmacists Helping Pharmacists

    EIN 731391653 · Headquarters: NORMAN, OK, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  4. Oklahoma Physical Therapy Association

    EIN 237056789 · Headquarters: TULSA, OK, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  5. Oklahoma Pilots Association

    EIN 731357652 · Headquarters: Bethany, OK, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  6. Oklahoma Pinto Horse Association

    EIN 731382669 · Headquarters: CLAREMORE, OK, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  7. Oklahoma Podiatric Medical Association

    EIN 731080341 · Headquarters: Oklahoma City, OK, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  8. Oklahoma Police Chiefs Training Foundation Inc

    EIN 731289104 · Headquarters: TULSA, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  9. Oklahoma Predictive Maintenance

    EIN 731413933 · Headquarters: STILLWATER, OK, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  10. Oklahoma Press Association

    EIN 730383650 · Headquarters: Oklahoma City, OK, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  11. Oklahoma Propane Gas Association

    EIN 730606470 · Headquarters: OKLAHOMA CITY, OK, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  12. Oklahoma Property and Casualty Insurance Guaranty Association

    EIN 731121874 · Headquarters: OKLAHOMA CITY, OK, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  13. Oklahoma Prosperity Project

    EIN 993056256 · Headquarters: Oklahoma City, OK, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  14. Oklahoma Psychiatric Physicians Assoc

    EIN 736111803 · Headquarters: Norman, OK, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  15. Oklahoma Psychological Association

    EIN 730983274 · Headquarters: NORMAN, OK, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  16. Oklahoma Ptg Chapter 731

    EIN 460992639 · Headquarters: EDMOND, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  17. Oklahoma Public Employees Association

    EIN 730992657 · Headquarters: OKLAHOMA CITY, OK, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  18. Oklahoma Public Fund Trustee Education Conference Association

    EIN 921723062 · Headquarters: Oklahoma City, OK, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  19. Oklahoma Quarter Horse Association

    EIN 730777189 · Headquarters: Oklahoma City, OK, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  20. Oklahoma Quarter Horse Racing Association Inc

    EIN 731348198 · Headquarters: EDMOND, OK, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  21. Oklahoma Railroad Association Inc

    EIN 731393761 · Headquarters: NORMAN, OK, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  22. Oklahoma Railway Museum Limited

    EIN 731234341 · Headquarters: Oklahoma City, OK, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  23. Oklahoma Ready Mixed Concrete Association

    EIN 730658701 · Headquarters: PIEDMONT, OK, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  24. Oklahoma Recreation & Park Society Inc

    EIN 731172557 · Headquarters: Edmond, OK, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  25. Oklahoma Recyclers Association

    EIN 731371284 · Headquarters: MUSKOGEE, OK, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  26. Oklahoma Redbirds Baseball - Club

    EIN 472855734 · Headquarters: Yukon, OK, US · Unknown & Unclassified · Latest available filing year: 2016 · Primary form: IRS Form 990-N

  27. Oklahoma Redbirds Club

    EIN 471670932 · Headquarters: Skiatook, OK, US · Unknown & Unclassified · Latest available filing year: 2014 · Primary form: IRS Form 990-N

  28. Oklahoma Region Sports Car Club of America Inc

    EIN 736102697 · Headquarters: Moore, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  29. Oklahoma Region Volleyball Association Inc

    EIN 731346899 · Headquarters: EDMOND, OK, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  30. Oklahoma Regional Health Partners Inc

    EIN 813077538 · Headquarters: Oklahoma City, OK, US · Unknown & Unclassified · Latest available filing year: 2016 · Primary form: IRS Form 990-N

  31. Oklahoma Regional Training Center Inc Fka Sooner Wrestling Club Inc

    EIN 731074106 · Headquarters: EDMOND, OK, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  32. Oklahoma Registry of Interpreters for the Deaf

    EIN 731582123 · Headquarters: Yukon, OK, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  33. Oklahoma Reining Horse Association

    EIN 320030461 · Headquarters: KIEFER, OK, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  34. Oklahoma Rental Dealers Association

    EIN 731295974 · Headquarters: Bixby, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  35. Oklahoma Residence Corporation

    EIN 730738239 · Headquarters: Muskogee, OK, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  36. Oklahoma Residential Assisted Livin

    EIN 731199479 · Headquarters: CLAREMORE, OK, USA · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990

  37. Oklahoma Restaurant Association

    EIN 730383792 · Headquarters: OKLAHOMA CITY, OK, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  38. Oklahoma Retired Educators Association

    EIN 731331032 · Headquarters: OKLAHOMA CITY, OK, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  39. Oklahoma Rose Chapter Nsdar

    EIN 843908838 · Headquarters: Tulsa, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  40. Oklahoma Rural Rehabilitation Corp

    EIN 730769502 · Headquarters: STILLWATER, OK, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  41. Oklahoma Rural Water Association

    EIN 237329973 · Headquarters: OKLAHOMA CITY, OK, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  42. Oklahoma Safety Center

    EIN 731443094 · Headquarters: TULSA, OK, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  43. Oklahoma Safety Management Council

    EIN 731416128 · Headquarters: JENKS, OK, USA · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990-EZ

  44. Oklahoma Saler Association

    EIN 731291976 · Headquarters: Ninnekah, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  45. Oklahoma Saved by Grace Outreach Mi

    EIN 843089238 · Headquarters: Oklahoma City, OK, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  46. Oklahoma School of Science and Mathematics

    EIN 731393705 · Headquarters: Oklahoma City, OK, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  47. Oklahoma Secondary School Activities Association

    EIN 730599761 · Headquarters: Oklahoma City, OK, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  48. Oklahoma Seed Trade Association Inc

    EIN 731154176 · Headquarters: ENID, OK, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  49. Oklahoma Senior Golf Association

    EIN 731068904 · Headquarters: Norman, OK, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  50. Oklahoma Sheriffs Association Inc

    EIN 731401947 · Headquarters: EDMOND, OK, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  51. Oklahoma Sign Association

    EIN 730797894 · Headquarters: YUKON, OK, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  52. Oklahoma Soccer Referee Association Inc

    EIN 474458957 · Headquarters: TULSA, OK, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  53. Oklahoma Society of Anesthesiologists

    EIN 730739936 · Headquarters: EDMOND, OK, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  54. Oklahoma Society of Association Executives Education and Research

    EIN 731414283 · Headquarters: Mustang, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  55. Oklahoma Society of Association Executives Inc

    EIN 731304820 · Headquarters: Mustang, OK, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  56. Oklahoma Society of Certified Public Accountants

    EIN 730689320 · Headquarters: OKLAHOMA CITY, OK, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  57. Oklahoma Society of Certified Public Accountants Educational Foun

    EIN 731339781 · Headquarters: OKLAHOMA CITY, OK, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  58. Oklahoma Society of Clinical Oncology I

    EIN 731392619 · Headquarters: OKLAHOMA CITY, OK, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  59. Oklahoma Society of Cpas (Group Return)

    EIN 731376933 · Headquarters: OKLAHOMA CITY, OK, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  60. Oklahoma Society of Health-system Pharmacists

    EIN 731043506 · Headquarters: OKLAHOMA CITY, OK, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  61. Oklahoma Society of Land Surveyors

    EIN 237260775 · Headquarters: EDMOND, OK, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  62. Oklahoma Society of Public Accountants

    EIN 736097122 · Headquarters: BROKEN ARROW, OK, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  63. Oklahoma Sooner Circuit of Dog Shows Club

    EIN 731568711 · Headquarters: Edmond, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  64. Oklahoma Sooner Private Process Server Association Inc

    EIN 473370269 · Headquarters: TULSA, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  65. Oklahoma Soybean Board Inc

    EIN 731521287 · Headquarters: CLAREMORE, OK, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  66. Oklahoma Speaker's Ball Inc

    EIN 202018083 · Headquarters: NORMAN, OK, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  67. Oklahoma Speech Theatre Communication Association Inc

    EIN 731211088 · Headquarters: Bethany, OK, US · Unknown & Unclassified · Latest available filing year: 2014 · Primary form: IRS Form 990-N

  68. Oklahoma Sportsmens Fund Inc

    EIN 871227117 · Headquarters: OKLAHOMA CITY, OK, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  69. Oklahoma State Afl-cio

    EIN 730674439 · Headquarters: OKLAHOMA CITY, OK, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  70. Oklahoma State Bureau of Investigation Employee Association

    EIN 731303818 · Headquarters: Oklahoma City, OK, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  71. Oklahoma State Chamber of Commerce and Industry Inc

    EIN 731270209 · Headquarters: Oklahoma City, OK, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  72. Oklahoma State Council of Mineralogical Societies

    EIN 731292790 · Headquarters: Enid, OK, US · Unknown & Unclassified · Latest available filing year: 2008 · Primary form: IRS Form 990-N

  73. Oklahoma State Demolay Mothers Club

    EIN 465623851 · Headquarters: Yukon, OK, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  74. Oklahoma State Dermatology and Dermatologic Surgery Society

    EIN 731044383 · Headquarters: Tulsa, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  75. Oklahoma State Electrologists Association

    EIN 731160428 · Headquarters: Tulsa, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  76. Oklahoma State Firefighters Assoc

    EIN 730704956 · Headquarters: OKLAHOMA CITY, OK, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  77. Oklahoma State Florists Association Inc

    EIN 736098193 · Headquarters: Muskogee, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  78. Oklahoma State Home Builders

    EIN 730683222 · Headquarters: OKLAHOMA CITY, OK, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  79. Oklahoma State Medical Asociation Auxiliary

    EIN 731103004 · Headquarters: Oklahoma City, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  80. Oklahoma State Medical Association

    EIN 730384245 · Headquarters: OKLAHOMA CITY, OK, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  81. Oklahoma State Organization Intl Good Sam Recreational Vehicle Club

    EIN 462657623 · Headquarters: BEGGS, OK, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  82. Oklahoma State Organization Intl Good Sam Recreational Vehicle Club

    EIN 731347764 · Headquarters: Beggs, OK, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  83. Oklahoma State Organization Intl Good Sam Recreational Vehicle Club

    EIN 731357671 · Headquarters: BEGGS, OK, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  84. Oklahoma State Organization Intl Good Sam Recreational Vehicle Club

    EIN 731357673 · Headquarters: BEGGS, OK, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  85. Oklahoma State Organization Intl Good Sam Recreational Vehicle Club

    EIN 731357674 · Headquarters: BEGGS, OK, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  86. Oklahoma State Organization Intl Good Sam Recreational Vehicle Club

    EIN 731357676 · Headquarters: BEGGS, OK, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  87. Oklahoma State Organization Intl Good Sam Recreational Vehicle Club

    EIN 731357996 · Headquarters: BEGGS, OK, US · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  88. Oklahoma State Organization Intl Good Sam Recreational Vehicle Club

    EIN 731357997 · Headquarters: BEGGS, OK, US · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  89. Oklahoma State Organization Intl Good Sam Recreational Vehicle Club

    EIN 731358007 · Headquarters: BEGGS, OK, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  90. Oklahoma State Organization Intl Good Sam Recreational Vehicle Club

    EIN 731358016 · Headquarters: BEGGS, OK, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  91. Oklahoma State Organization Intl Good Sam Recreational Vehicle Club

    EIN 731363964 · Headquarters: BEGGS, OK, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  92. Oklahoma State Organization Intl Good Sam Recreational Vehicle Club

    EIN 731365967 · Headquarters: BEGGS, OK, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  93. Oklahoma State Organization Intl Good Sam Recreational Vehicle Club

    EIN 731365969 · Headquarters: BEGGS, OK, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  94. Oklahoma State Organization Intl Good Sam Recreational Vehicle Club

    EIN 731365978 · Headquarters: BEGGS, OK, US · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  95. Oklahoma State Organization Intl Good Sam Recreational Vehicle Club

    EIN 743176572 · Headquarters: BEGGS, OK, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  96. Oklahoma State Organization Intl Good Sam Recreational Vehicle Club

    EIN 912026076 · Headquarters: BEGGS, OK, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  97. Oklahoma State Organization Intl Good Sam Recreational Vehicle Club

    EIN 912067875 · Headquarters: BEGGS, OK, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  98. Oklahoma State Quality Award Foundation Inc

    EIN 731437273 · Headquarters: Tulsa, OK, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  99. Oklahoma State Radiological Society Attn Gabe Graham

    EIN 731311694 · Headquarters: Porter, OK, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  100. Oklahoma State Troopers Association

    EIN 237395722 · Headquarters: YUKON, OK, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

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