Unknown & Unclassified nonprofits

Unknown & Unclassified nonprofits. Browse 557,756 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 Cemetery Association

    EIN 731415230 · Headquarters: Magnolia, TX, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  2. Oklahoma Center for Civic Education

    EIN 921907843 · Headquarters: Oklahoma City, OK, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  3. Oklahoma Central Credit Union

    EIN 730731221 · Headquarters: TULSA, OK, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  4. Oklahoma Certified Installers Association Inc

    EIN 010744123 · Headquarters: Edmond, OK, US · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  5. Oklahoma Chamber of Commerce Executives Association Inc

    EIN 730712609 · Headquarters: BROKEN ARROW, OK, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  6. Oklahoma Chapter National Electrical Contractors Association

    EIN 730528978 · Headquarters: OKLAHOMA CITY, OK, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  7. Oklahoma Chapter of National Corvette Restorers Society Inc

    EIN 731462191 · Headquarters: Broken Arrow, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  8. Oklahoma Chapter of Risk Management Association

    EIN 432053507 · Headquarters: Moore, OK, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  9. Oklahoma Chapter of the American College of Surgeons Inc

    EIN 731050777 · Headquarters: Metairie, LA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  10. Oklahoma Chapter of the American Society of Landscape Architects

    EIN 731081993 · Headquarters: Tulsa, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  11. Oklahoma Chapter of the Society of Industrial and Office Realtors

    EIN 471211235 · Headquarters: TULSA, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  12. Oklahoma Chapter of the Soil and Water Conservation Society

    EIN 731179874 · Headquarters: Weatherford, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  13. Oklahoma Chapter of Women In Public Fina C/o Municipal Advisory Council of Texas

    EIN 872201943 · Headquarters: Austin, TX, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  14. Oklahoma Chevelle & El Camino Owners Association

    EIN 383792266 · Headquarters: Tulsa, OK, US · Unknown & Unclassified · Latest available filing year: 2014 · Primary form: IRS Form 990-N

  15. Oklahoma Childrens Cancer Association

    EIN 237389292 · Headquarters: Oklahoma City, OK, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  16. Oklahoma Childrens Theatre Inc

    EIN 731289903 · Headquarters: OKLAHOMA CITY, OK, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  17. Oklahoma Chinese Association

    EIN 851068295 · Headquarters: Norman, OK, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  18. Oklahoma Choral Association

    EIN 731085328 · Headquarters: OKLAHOMA CITY, OK, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  19. Oklahoma Christian School

    EIN 730972978 · Headquarters: Edmond, OK, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  20. Oklahoma City Advertising Club

    EIN 730986183 · Headquarters: OKLAHOMA CITY, OK, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  21. Oklahoma City Aft Local 2309

    EIN 730955513 · Headquarters: OKLAHOMA CITY, OK, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  22. Oklahoma City Assoc of Professional Land and Title Analysts Inc

    EIN 273644011 · Headquarters: OKLAHOMA CITY, OK, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  23. Oklahoma City Association of Professional Petroleum Landmen

    EIN 731099493 · Headquarters: OKLAHOMA CITY, OK, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  24. Oklahoma City Association of the Deaf

    EIN 237001008 · Headquarters: OKLAHOMA CITY, OK, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  25. Oklahoma City Audubon Society Inc

    EIN 731190908 · Headquarters: EDMOND OK, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  26. Oklahoma City Auto Patch Association Inc

    EIN 730927999 · Headquarters: MIDWEST CITY, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  27. Oklahoma City Boat Club

    EIN 736063875 · Headquarters: Oklahoma City, OK, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  28. Oklahoma City Chapter of the Assoc of Legal Administrators Inc

    EIN 731366967 · Headquarters: Oklahoma City, OK, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  29. Oklahoma City Charter Chapter of the American Business Womens Assoc

    EIN 237339551 · Headquarters: YUKON, OK, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  30. Oklahoma City Clinical Society

    EIN 730658478 · Headquarters: Oklahoma City, OK, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  31. Oklahoma City Coin Club

    EIN 736104145 · Headquarters: EDMOND, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  32. Oklahoma City Community College Faculty Association

    EIN 471740790 · Headquarters: Oklahoma City, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  33. Oklahoma City Court 78 Royal Order of Jesters

    EIN 237096561 · Headquarters: OKLAHOMA CITY, OK, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  34. Oklahoma City Democratic Socialists Syndicate

    EIN 824781423 · Headquarters: Oklahoma City, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  35. Oklahoma City District Diete

    EIN 731357288 · Headquarters: Oklahoma City, OK, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  36. Oklahoma City Elks Lodge No 417

    EIN 730145540 · Headquarters: OKLAHOMA CITY, OK, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  37. Oklahoma City Estate Planning Council

    EIN 731296664 · Headquarters: OKLAHOMA CITY, OK, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  38. Oklahoma City Family Child Care Association

    EIN 900352450 · Headquarters: Bethany, OK, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  39. Oklahoma City Geological Society

    EIN 736097763 · Headquarters: OKLAHOMA CITY, OK, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  40. Oklahoma City Golf and Country Club

    EIN 730381320 · Headquarters: NICHOLS HILLS, OK, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  41. Oklahoma City Gridiron Club

    EIN 736101857 · Headquarters: OKLAHOMA CITY, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  42. Oklahoma City Gridiron Foundation Inc

    EIN 736104043 · Headquarters: OKLAHOMA CITY, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  43. Oklahoma City Gun Club

    EIN 731247606 · Headquarters: EDMOND, OK, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  44. Oklahoma City Human Resources Society

    EIN 731502433 · Headquarters: OKLAHOMA CITY, OK, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  45. Oklahoma City Innovation District Inc

    EIN 730756329 · Headquarters: OKLAHOMA CITY, OK, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  46. Oklahoma City International Folk Dancers Incorporated

    EIN 731340418 · Headquarters: OKLAHOMA CITY, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  47. Oklahoma City Livestock Exchange

    EIN 730381370 · Headquarters: Oklahoma City, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  48. Oklahoma City Metropolitan Alliance of Black School Educators Inc

    EIN 731424781 · Headquarters: Oklahoma City, OK, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  49. Oklahoma City Metropolitan Association of Realtors

    EIN 730381435 · Headquarters: OKLAHOMA CITY, OK, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  50. Oklahoma City Pagan Pride Day Inc

    EIN 465605657 · Headquarters: Oklahoma City, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  51. Oklahoma City Police Association In

    EIN 731313341 · Headquarters: OKLAHOMA CITY, OK, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  52. Oklahoma City Police Insurance Fund Inc

    EIN 731050294 · Headquarters: OKLAHOMA CITY, OK, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  53. Oklahoma City Redevelopment Corp

    EIN 731048428 · Headquarters: Oklahoma City, OK, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  54. Oklahoma City Retired Firefighters Association

    EIN 731042759 · Headquarters: Oklahoma City, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  55. Oklahoma City Running Club

    EIN 731427645 · Headquarters: OKLAHOMA CITY, OK, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  56. Oklahoma City Ski Club

    EIN 510173664 · Headquarters: Oklahoma City, OK, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  57. Oklahoma City Tennis Association

    EIN 272107003 · Headquarters: Oklahoma City, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  58. Oklahoma Club Calf Association

    EIN 731391898 · Headquarters: Morrison, OK, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  59. Oklahoma Coalition for Sex Offender Management Inc

    EIN 270531291 · Headquarters: Tulsa, OK, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  60. Oklahoma Coalition for Workers Righ Inc

    EIN 472846811 · Headquarters: EDMOND, OK, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  61. Oklahoma Coalition to Abolish the Death Penalty Inc

    EIN 731321377 · Headquarters: Oklahoma City, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  62. Oklahoma College of Occupational and Environmental Medicine Inc

    EIN 730999644 · Headquarters: OKLAHOMA CITY, OK, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  63. Oklahoma Community Orchestra Inc

    EIN 731307690 · Headquarters: Oklahoma City, OK, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  64. Oklahoma Congress of Parents and Teachers

    EIN 800747413 · Headquarters: Spencer, OK, US · Unknown & Unclassified · Latest available filing year: 2011 · Primary form: IRS Form 990-N

  65. Oklahoma Congress of Parents and Teachers

    EIN 800752518 · Headquarters: McLoud, OK, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  66. Oklahoma Congress of Parents and Teachers

    EIN 800873114 · Headquarters: Oklahoma City, OK, US · Unknown & Unclassified · Latest available filing year: 2017 · Primary form: IRS Form 990-N

  67. Oklahoma Congress of Parents and Teachers - Oklahoma Pta

    EIN 300381315 · Headquarters: Tulsa, OK, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  68. Oklahoma Congress of Parents and Teachers - Oklahoma Pta

    EIN 900993544 · Headquarters: Broken Arrow, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  69. Oklahoma Congress of Parents and Teachers-Oklahoma Pta

    EIN 320389805 · Headquarters: Tulsa, OK, US · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  70. Oklahoma Congress of Parents and Teachers-Oklahoma Pta

    EIN 421716185 · Headquarters: Oklahoma City, OK, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  71. Oklahoma Consumer Finance Assoc Inc

    EIN 731526295 · Headquarters: TULSA, OK, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  72. Oklahoma Cotton Council

    EIN 730593782 · Headquarters: ALTUS, OK, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  73. Oklahoma Council of Child & Adolescent Psychiatry Inc

    EIN 731372727 · Headquarters: Norman, OK, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  74. Oklahoma Council of Deans and Chairpersons of Bsn Programs Inc

    EIN 364464003 · Headquarters: Tulsa, OK, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  75. Oklahoma Council of Deliberation

    EIN 870774536 · Headquarters: Lawton, OK, US · Unknown & Unclassified · Latest available filing year: 2014 · Primary form: IRS Form 990-N

  76. Oklahoma Council of Teachers of Mathematics

    EIN 237271082 · Headquarters: Norman, OK, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  77. Oklahoma Council of Trout Unlimited

    EIN 911928277 · Headquarters: TULSA, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  78. Oklahoma Council on Economic Education

    EIN 736102613 · Headquarters: EDMOND, OK, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  79. Oklahoma County Bar Association

    EIN 730732668 · Headquarters: OKLAHOMA CITY, OK, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  80. Oklahoma County Farm Bureau

    EIN 730711872 · Headquarters: Edmond, OK, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  81. Oklahoma County Medical Society

    EIN 730381790 · Headquarters: Oklahoma City, OK, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  82. Oklahoma County Retired Educators Association

    EIN 800919487 · Headquarters: Oklahoma City, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  83. Oklahoma Court Reporters Association

    EIN 731334127 · Headquarters: Claremore, OK, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  84. Oklahoma Cowboys

    EIN 800691259 · Headquarters: Perry, OK, US · Unknown & Unclassified · Latest available filing year: 2014 · Primary form: IRS Form 990-N

  85. Oklahoma Crime Stoppers Inc

    EIN 731394438 · Headquarters: Bartlesville, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  86. Oklahoma Criminal Defense Lawyers Association Inc

    EIN 731029901 · Headquarters: OKLAHOMA CITY, OK, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  87. Oklahoma Crop Improvement Association

    EIN 730592606 · Headquarters: STILLWATER, OK, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  88. Oklahoma Czechs Inc

    EIN 237122849 · Headquarters: Yukon, OK, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  89. Oklahoma Decides Inc

    EIN 841868822 · Headquarters: Oklahoma City, OK, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  90. Oklahoma Dental Assistants Association

    EIN 731029788 · Headquarters: Oklahoma City, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  91. Oklahoma Dental Association

    EIN 730384196 · Headquarters: OKLAHOMA CITY, OK, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  92. Oklahoma Dental Association

    EIN 736110751 · Headquarters: Oklahoma City, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  93. Oklahoma Dental Association Group Return

    EIN 237144710 · Headquarters: OKLAHOMA CITY, OK, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  94. Oklahoma Dental Hygienists Association

    EIN 736099255 · Headquarters: TULSA, OK, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  95. Oklahoma Diamond Girls Club

    EIN 473189055 · Headquarters: Tulsa, OK, US · Unknown & Unclassified · Latest available filing year: 2017 · Primary form: IRS Form 990-N

  96. Oklahoma Dirt Dawgs

    EIN 273621738 · Headquarters: Owasso, OK, US · Unknown & Unclassified · Latest available filing year: 2011 · Primary form: IRS Form 990-N

  97. Oklahoma District Attorneys Association

    EIN 562670177 · Headquarters: OKLAHOMA CITY, OK, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  98. Oklahoma District Attorneys Association Inc

    EIN 731417376 · Headquarters: Oklahoma City, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  99. Oklahoma Division of Student Assistance

    EIN 731086249 · Headquarters: DURANT, OK, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  100. Oklahoma Education Association

    EIN 730384310 · Headquarters: OKLAHOMA CITY, OK, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

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