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. American Orff-schulwerk Association

    EIN 611816198 · Headquarters: BROKEN ARROW, OK, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  2. American Petroleum Institute Oklahoma City Chapter

    EIN 731517579 · Headquarters: Oklahoma City, OK, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  3. American Pharmacists Association Academy of Student Pharmacists

    EIN 736105955 · Headquarters: Weatherford, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  4. American Planning Association

    EIN 731174302 · Headquarters: Oklahoma City, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  5. American Postal Workers Union

    EIN 237340631 · Headquarters: Ponca City, OK, US · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  6. American Postal Workers Union

    EIN 237340659 · Headquarters: Woodward, OK, US · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  7. American Postal Workers Union

    EIN 237343490 · Headquarters: Clinton, OK, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  8. American Postal Workers Union

    EIN 237343497 · Headquarters: ENID, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  9. American Postal Workers Union

    EIN 731120287 · Headquarters: Tulsa, OK, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-EZ

  10. American Postal Workers Union

    EIN 731189734 · Headquarters: Stillwater, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  11. American Postal Workers Union 86

    EIN 736105290 · Headquarters: OKLAHOMA CITY, OK, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990

  12. AMERICAN POSTAL WORKERS UNION DBA Tulsa Area Local 1348

    EIN 730942457 · Headquarters: Tulsa, OK, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  13. American Rental Association

    EIN 742355836 · Headquarters: Oklahoma City, OK, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  14. American Rose Society

    EIN 237200265 · Headquarters: Tulsa, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  15. American Rose Society

    EIN 581783193 · Headquarters: Oklahoma City, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  16. American Society for Training and Development

    EIN 237164045 · Headquarters: OKC, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  17. American Society for Training and Development

    EIN 237429563 · Headquarters: Tulsa, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  18. American Society of Agricultural Engineers

    EIN 311178918 · Headquarters: Inola, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  19. American Society of Appraisers

    EIN 830985392 · Headquarters: Shawnee, OK, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  20. American Society of Heating Refridgerating & Ac Engineers

    EIN 371520341 · Headquarters: Oklahoma City, OK, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  21. American Society of Heating Refrigerating & A-c Engineers

    EIN 731170710 · Headquarters: Tulsa, OK, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  22. American Society of Interior Designers

    EIN 237417518 · Headquarters: Edmond, OK, USA · Unknown & Unclassified · Latest available filing year: 2017 · Primary form: IRS Form 990-EZ

  23. American Society of Military Comptrollers

    EIN 900099512 · Headquarters: Fort Sill, OK, US · Unknown & Unclassified · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  24. American Society of Radiologic Technologists

    EIN 731020241 · Headquarters: Moore, OK, US · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  25. American Soybean Association

    EIN 363141916 · Headquarters: Claremore, OK, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  26. American Statistical Association

    EIN 521665959 · Headquarters: Oklahoma City, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  27. American String Teachers Association Incorporated

    EIN 383779146 · Headquarters: Edmond, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  28. American Thoracic Society Inc

    EIN 611666906 · Headquarters: OKC, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  29. American Veterinary Chiropractic Association

    EIN 364403990 · Headquarters: BLUEJACKET, OK, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  30. American Veterinary Medical Assocication Oklahoma State Student Chapter Avma

    EIN 736103133 · Headquarters: STILLWATER, OK, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  31. American Volkssport Association Inc

    EIN 731265373 · Headquarters: Oklahoma City, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  32. American Volkssport Association Inc

    EIN 731309492 · Headquarters: Tulsa, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  33. Ames Cemetery

    EIN 736105956 · Headquarters: Covington, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  34. Ami Housing Corporation Dba Torrey Place Apartments

    EIN 731442639 · Headquarters: BARTLESVILLE, OK, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  35. Amvets Post 6

    EIN 880898632 · Headquarters: Lexington, OK, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-EZ

  36. Anadarko Basin Museum of Natural History Inc

    EIN 731215414 · Headquarters: ELK CITY, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  37. Anadarko Chamber of Commerce

    EIN 730127790 · Headquarters: ANADARKO, OK, USA · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-EZ

  38. Ancient & Accepted Scottish Rite of Free Masonry So Jurisd Valley of Tulsa

    EIN 730669804 · Headquarters: TULSA, OK, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  39. Ancient & Accepted Scottish Rite of Free Masonry Sojursid Valley of Mcalester

    EIN 237269478 · Headquarters: MCALESTER, OK, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  40. Ancient & Accepted Scottish Rite of Valley of Guthrie & Coord Bodies

    EIN 730268790 · Headquarters: GUTHRIE, OK, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  41. Ancient & Acdepted Scottish Rite of Free Masonry

    EIN 812195774 · Headquarters: Broken Arrow, OK, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  42. Ancient Egyptian Arabic Order Nobles Mystic Shrine of N & S Amer

    EIN 237536470 · Headquarters: Lawton, OK, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  43. Ancient Egyption Arabic Order

    EIN 237536458 · Headquarters: Oklahoma City, OK, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  44. Ancient Free & Accepted Free Masons

    EIN 237164119 · Headquarters: OWASSO, OK, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  45. Ancient Free & Accepted Masons of 125 Pond Creek

    EIN 736098247 · Headquarters: POND CREEK, OK, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990

  46. Ancient Free & Accepted Masons of 276 Dba Siloam Lodge No 276

    EIN 730127953 · Headquarters: OKLAHOMA CITY, OK, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  47. Ancient Free & Accepted Masons of 66 Red Oak

    EIN 237531597 · Headquarters: RED OAK, OK, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  48. Ancient Free & Accepted Masons of Okla Sand Springs Masonic Lodge 475

    EIN 237143268 · Headquarters: Sand Springs, OK, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  49. Ancient Free & Accepted Masons of Oklaho

    EIN 237143273 · Headquarters: Ardmore, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  50. Ancient Free & Accepted Masons of Oklaho Coweta Masonic Lodge No 251 Af & Am

    EIN 237531725 · Headquarters: COWETA, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  51. Ancient Free & Accepted Masons of Oklaho Delta Lodge No 425

    EIN 730538364 · Headquarters: TULSA, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  52. Ancient Free & Accepted Masons of Oklahoma

    EIN 030491610 · Headquarters: Oklahoma City, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  53. Ancient Free & Accepted Masons of Oklahoma

    EIN 237107867 · Headquarters: Moore, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  54. Ancient Free & Accepted Masons of Oklahoma

    EIN 237143250 · Headquarters: Altus, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  55. Ancient Free & Accepted Masons of Oklahoma

    EIN 237143251 · Headquarters: Guthrie, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  56. Ancient Free & Accepted Masons of Oklahoma

    EIN 237143252 · Headquarters: Stillwater, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  57. Ancient Free & Accepted Masons of Oklahoma

    EIN 237143253 · Headquarters: Tahlequah, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  58. Ancient Free & Accepted Masons of Oklahoma

    EIN 237143256 · Headquarters: Chickasha, OK, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  59. Ancient Free & Accepted Masons of Oklahoma

    EIN 237143257 · Headquarters: McAlester, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  60. Ancient Free & Accepted Masons of Oklahoma

    EIN 237143258 · Headquarters: Marlow, OK, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  61. Ancient Free & Accepted Masons of Oklahoma

    EIN 237143260 · Headquarters: Elk City, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  62. Ancient Free & Accepted Masons of Oklahoma

    EIN 237143262 · Headquarters: Cushing, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  63. Ancient Free & Accepted Masons of Oklahoma

    EIN 237143263 · Headquarters: Broken Arrow, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  64. Ancient Free & Accepted Masons of Oklahoma

    EIN 237143264 · Headquarters: ENID, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  65. Ancient Free & Accepted Masons of Oklahoma

    EIN 237153276 · Headquarters: Norman, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  66. Ancient Free & Accepted Masons of Oklahoma

    EIN 237531554 · Headquarters: Eufaula, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  67. Ancient Free & Accepted Masons of Oklahoma

    EIN 237531555 · Headquarters: Caddo, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  68. Ancient Free & Accepted Masons of Oklahoma

    EIN 237531556 · Headquarters: ATOKA, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  69. Ancient Free & Accepted Masons of Oklahoma

    EIN 237531557 · Headquarters: Vinita, OK, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  70. Ancient Free & Accepted Masons of Oklahoma

    EIN 237531558 · Headquarters: Pauls Valley, OK, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  71. Ancient Free & Accepted Masons of Oklahoma

    EIN 237531560 · Headquarters: Colbert, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  72. Ancient Free & Accepted Masons of Oklahoma

    EIN 237531562 · Headquarters: Stilwell, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  73. Ancient Free & Accepted Masons of Oklahoma

    EIN 237531563 · Headquarters: Fort Gibson, OK, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  74. Ancient Free & Accepted Masons of Oklahoma

    EIN 237531564 · Headquarters: Cameron, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  75. Ancient Free & Accepted Masons of Oklahoma

    EIN 237531565 · Headquarters: Vian, OK, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  76. Ancient Free & Accepted Masons of Oklahoma

    EIN 237531567 · Headquarters: Anadarko, OK, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  77. Ancient Free & Accepted Masons of Oklahoma

    EIN 237531568 · Headquarters: Crowder, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  78. Ancient Free & Accepted Masons of Oklahoma

    EIN 237531569 · Headquarters: Healdton, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  79. Ancient Free & Accepted Masons of Oklahoma

    EIN 237531570 · Headquarters: Fairland, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  80. Ancient Free & Accepted Masons of Oklahoma

    EIN 237531571 · Headquarters: Lone Grove, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  81. Ancient Free & Accepted Masons of Oklahoma

    EIN 237531573 · Headquarters: Purcell, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  82. Ancient Free & Accepted Masons of Oklahoma

    EIN 237531575 · Headquarters: krebs, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  83. Ancient Free & Accepted Masons of Oklahoma

    EIN 237531576 · Headquarters: Edmond, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  84. Ancient Free & Accepted Masons of Oklahoma

    EIN 237531577 · Headquarters: Antlers, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  85. Ancient Free & Accepted Masons of Oklahoma

    EIN 237531578 · Headquarters: WYNNEWOOD, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  86. Ancient Free & Accepted Masons of Oklahoma

    EIN 237531579 · Headquarters: Comanche, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  87. Ancient Free & Accepted Masons of Oklahoma

    EIN 237531580 · Headquarters: Davis, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  88. Ancient Free & Accepted Masons of Oklahoma

    EIN 237531582 · Headquarters: Durant, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  89. Ancient Free & Accepted Masons of Oklahoma

    EIN 237531583 · Headquarters: Poteau, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  90. Ancient Free & Accepted Masons of Oklahoma

    EIN 237531584 · Headquarters: Spiro, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  91. Ancient Free & Accepted Masons of Oklahoma

    EIN 237531585 · Headquarters: el reno, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  92. Ancient Free & Accepted Masons of Oklahoma

    EIN 237531588 · Headquarters: Claremore, OK, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  93. Ancient Free & Accepted Masons of Oklahoma

    EIN 237531590 · Headquarters: Hennessey, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  94. Ancient Free & Accepted Masons of Oklahoma

    EIN 237531591 · Headquarters: Nowata, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  95. Ancient Free & Accepted Masons of Oklahoma

    EIN 237531592 · Headquarters: Chandler, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  96. Ancient Free & Accepted Masons of Oklahoma

    EIN 237531593 · Headquarters: Mangum, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  97. Ancient Free & Accepted Masons of Oklahoma

    EIN 237531600 · Headquarters: Tecumseh, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  98. Ancient Free & Accepted Masons of Oklahoma

    EIN 237531604 · Headquarters: Afton, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  99. Ancient Free & Accepted Masons of Oklahoma

    EIN 237531605 · Headquarters: Perry, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  100. Ancient Free & Accepted Masons of Oklahoma

    EIN 237531606 · Headquarters: Enid, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

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