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. Marine Corps League

    EIN 205045928 · Headquarters: LAWTON, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  2. Marine Corps League

    EIN 263656795 · Headquarters: Sapulpa, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  3. Marine Corps League

    EIN 270340439 · Headquarters: MIAMI, OK, US · Unknown & Unclassified · Latest available filing year: 2012 · Primary form: IRS Form 990-N

  4. Marine Corps League

    EIN 364623432 · Headquarters: TULSA, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  5. Marine Corps League

    EIN 392067049 · Headquarters: TULSA, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  6. Marine Corps League

    EIN 461218784 · Headquarters: Muldrow, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  7. Marine Corps League

    EIN 464038084 · Headquarters: Indiahoma, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  8. Marine Corps League

    EIN 510598819 · Headquarters: Claremore, OK, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  9. Marine Corps League

    EIN 731234982 · Headquarters: Norman, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  10. Marine Corps League

    EIN 731334704 · Headquarters: Barnsdall, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  11. Marine Corps League

    EIN 731503249 · Headquarters: Tulsa, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  12. Marine Corps League

    EIN 800844461 · Headquarters: TULSA, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  13. Marine Family Support Organization

    EIN 460807167 · Headquarters: Oklahoma City, OK, US · Unknown & Unclassified · Latest available filing year: 2012 · Primary form: IRS Form 990-N

  14. Marjorie Clayton Testamentary Trust

    EIN 206376188 · Headquarters: TULSA, OK, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  15. Mark Diehl Trust

    EIN 736215491 · Headquarters: CLAREMORE, OK, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  16. Mark Little Ministries Inc

    EIN 731149868 · Headquarters: Edmond, OK, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  17. Mark Vancuren Friends Of

    EIN 823703515 · Headquarters: OWASSO, OK, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-EZ

  18. Markoma Christian Ministries Inc

    EIN 730114179 · Headquarters: TAHLEQUAH, OK, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  19. Marlow After-prom Organization

    EIN 833859371 · Headquarters: Duncan, OK, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  20. Marlow Chamber of Commerce

    EIN 730340037 · Headquarters: Marlow, OK, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  21. Marlow Firefighters Association

    EIN 842848502 · Headquarters: Marlow, OK, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  22. Marlow Samaritans

    EIN 731396740 · Headquarters: Marlow, OK, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  23. Marshall County Chamber of Commerce

    EIN 730543623 · Headquarters: MADILL, OK, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  24. Marshall County Fair Board

    EIN 731210540 · Headquarters: Madill, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  25. Marshall County Water Coproration

    EIN 730939020 · Headquarters: MADILL, OK, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990

  26. Marshall W Maupin Testamentary Trust

    EIN 746445416 · Headquarters: CLAREMORE, OK, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  27. Marsy's Law for Oklahoma Sq 794

    EIN 822417753 · Headquarters: OKLAHOMA CITY, OK, USA · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990

  28. Martin Family Association Incorporated

    EIN 851168890 · Headquarters: Moore, OK, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  29. Martin Luther King Jr Lions Pta

    EIN 813779330 · Headquarters: OKLAHOMA CITY, OK, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  30. Martin Reunion

    EIN 371762353 · Headquarters: Leedey, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  31. Mary Cochran Quincy Memorial Fund Inc

    EIN 731182571 · Headquarters: MCALESTER, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  32. Mary E Jones Student Trust

    EIN 736133947 · Headquarters: OKLAHOMA CITY, OK, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  33. Mary Jane Dowse Charitable Trust

    EIN 116573892 · Headquarters: CLAREMORE, OK, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  34. Mary K Ashbrook Foundation for El Reno Ok

    EIN 731049531 · Headquarters: EL RENO, OK, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  35. Mary L Livermore Foundation

    EIN 751623098 · Headquarters: Poteau, OK, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-PF

  36. Mary Lou Trolinger Senior Center Association

    EIN 731193977 · Headquarters: CROWDER, OK, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  37. Masonic Building Association of Muskogee Oklahoma

    EIN 730342340 · Headquarters: Muskogee, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  38. Masonic Hospital Association

    EIN 731591288 · Headquarters: Cherokee, OK, US · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  39. Massey Cemetery Association

    EIN 421678577 · Headquarters: mcalester, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  40. Matt 25 40 Group Inc

    EIN 870877970 · Headquarters: Broken Arrow, OK, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  41. Matumaini Ministries Incorporated

    EIN 471308352 · Headquarters: MCALESTER, OK, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  42. Maude Bryant Scholarship Trust

    EIN 731177021 · Headquarters: Blackwell, OK, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  43. Maverick Lab Rescue Inc

    EIN 208371293 · Headquarters: YUKON, OK, US · Unknown & Unclassified · Latest available filing year: 2007 · Primary form: IRS Form 990-N

  44. Maxwell Family Charitable Foundation

    EIN 731603064 · Headquarters: Tulsa, OK, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  45. May Thompson Henry Trust Stride Bank Na

    EIN 731308178 · Headquarters: ENID, OK, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  46. Mayer County Medical Society

    EIN 731213896 · Headquarters: Oklahoma City, OK, US · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  47. Mayes County Historical Society

    EIN 237267553 · Headquarters: Pryor, OK, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  48. Mayo Demonstration School for Science and Technology Foundation

    EIN 731409548 · Headquarters: Tulsa, OK, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  49. Mayo Demonstration School PTA

    EIN 731409308 · Headquarters: TULSA, OK, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  50. Mayors Commission on the Status of Women

    EIN 451645324 · Headquarters: Lawton, OK, US · Unknown & Unclassified · Latest available filing year: 2014 · Primary form: IRS Form 990-N

  51. Maysville Senior Citizens Association

    EIN 731221535 · Headquarters: Maysville, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  52. Mazzaroth Inc

    EIN 731236720 · Headquarters: Oklahoma City, OK, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  53. Mcalester Chamber Foundation Inc

    EIN 731082229 · Headquarters: McAlester, OK, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  54. Mcalester Chamber of Commerce and Agriculture

    EIN 730344760 · Headquarters: MCALESTER, OK, USA · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-EZ

  55. Mcalester Main Street Association

    EIN 731292834 · Headquarters: MCALESTER, OK, US · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  56. Mcalester Masonic Cemetery

    EIN 731060770 · Headquarters: McAlester, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  57. Mcalester Regional Literacy Council

    EIN 731307002 · Headquarters: McAlester, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  58. Mcalester Rotary Foundation Inc

    EIN 731115821 · Headquarters: McAlester, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  59. Mcanaw Family Foundation

    EIN 731427545 · Headquarters: BARTLESVILLE, OK, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  60. McCall's Communities for Life Enrichment

    EIN 736271145 · Headquarters: Ada, OK, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  61. McCasland Foundation

    EIN 736096032 · Headquarters: Duncan, OK, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  62. Mcclain County Historical Society

    EIN 731217267 · Headquarters: Purcell, OK, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  63. Mcclenagan Music Ministries Inc

    EIN 731104116 · Headquarters: GUYMON, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  64. Mccool Ministries Incorporated

    EIN 464851208 · Headquarters: OKLAHOMA CITY, OK, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  65. Mccord Rural Water District No 3

    EIN 730781241 · Headquarters: PONCA CITY, OK, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  66. Mccurtain County Geneological Society

    EIN 731312889 · Headquarters: Idabel, OK, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  67. Mccurtain County Historical Society

    EIN 731123286 · Headquarters: Idabel, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  68. MCHS Band Boosters Inc

    EIN 923999029 · Headquarters: Midwest City, OK, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  69. Mcmahon Foundation

    EIN 730664314 · Headquarters: LAWTON, OK, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  70. Mcmillan Council No 15 Allied Masonic Degrees

    EIN 352376430 · Headquarters: Skiatook, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  71. Md Institute

    EIN 824147988 · Headquarters: edmond, OK, US · Unknown & Unclassified · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  72. Meagan Pinkney Ministries

    EIN 832904736 · Headquarters: Tulsa, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  73. Meals on Wheels of Metro Tulsa Inc Endownment Trust

    EIN 731342306 · Headquarters: Tulsa, OK, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  74. Meeting Professionals International

    EIN 731223347 · Headquarters: Oklahoma City, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  75. Meinig Family Foundation

    EIN 731373991 · Headquarters: TULSA, OK, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  76. Mel Piper Ministries Inc

    EIN 731470463 · Headquarters: BROKEN ARROW, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  77. Melissa Hines Foundation

    EIN 465200887 · Headquarters: Oklahoma City, OK, US · Unknown & Unclassified · Latest available filing year: 2014 · Primary form: IRS Form 990-N

  78. Memorial Park

    EIN 730351435 · Headquarters: TULSA, OK, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  79. Memorial Park Cemetery A Trust

    EIN 730351480 · Headquarters: Enid, OK, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  80. Memory Lane Inc

    EIN 730744938 · Headquarters: KINGFISHER, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  81. Memphis Tia Piah Society

    EIN 621419539 · Headquarters: POCOLA, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  82. Mens Dinner Club

    EIN 736111270 · Headquarters: Oklahoma City, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  83. Mental Illness Advocacy and Awareness Organization Inc

    EIN 731134383 · Headquarters: OKLAHOMA CITY, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  84. Mercedes-benz Club of America

    EIN 824870711 · Headquarters: Broken Arrow, OK, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  85. Mercy

    EIN 452998842 · Headquarters: GUTHRIE, OK, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  86. Mercy

    EIN 462288155 · Headquarters: ADA, OK, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  87. Mercy Health Foundation Ada

    EIN 463596274 · Headquarters: ADA, OK, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  88. Mercy Health Foundation Ardmore

    EIN 710962525 · Headquarters: ARDMORE, OK, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  89. Mercy Health Foundation of Oklahoma

    EIN 454732301 · Headquarters: OKLAHOMA CITY, OK, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  90. Mercy Health Foundation Oklahoma City

    EIN 463184231 · Headquarters: OKLAHOMA CITY, OK, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  91. Mercy Health Oklahoma Communities

    EIN 731453048 · Headquarters: OKLAHOMA CITY, OK, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  92. Mercy Hospital Healdton

    EIN 263173902 · Headquarters: HEALDTON, OK, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  93. Mercy Hospital Kingfisher Inc

    EIN 463433074 · Headquarters: KINGFISHER, OK, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  94. Mercy Hospital Watonga Inc

    EIN 455199762 · Headquarters: WATONGA, OK, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  95. Meridian Technology Center Foundation Inc

    EIN 731257840 · Headquarters: STILLWATER, OK, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  96. Merkel Family Foundation

    EIN 736248411 · Headquarters: TULSA, OK, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  97. Mervin Bovaird Foundation

    EIN 736102163 · Headquarters: Tulsa, OK, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  98. Messer Volunteer Fire Department Inc

    EIN 731301081 · Headquarters: Hugo, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  99. Metal Blessing Radio Corp

    EIN 465004940 · Headquarters: collinsville, OK, US · Unknown & Unclassified · Latest available filing year: 2014 · Primary form: IRS Form 990-N

  100. Metro Area Development Corporation

    EIN 731214992 · Headquarters: OKLAHOMA CITY, OK, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

First page and all pages