Unknown & Unclassified nonprofits in Michigan

Unknown & Unclassified nonprofits in Michigan. Browse 16,606 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. Okemos Athletic Boosters Club Inc

    EIN 382494473 · Headquarters: Okemos, MI, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  2. Okemos Education Association Inc

    EIN 383247151 · Headquarters: Okemos, MI, US · Unknown & Unclassified · Latest available filing year: 2013 · Primary form: IRS Form 990-N

  3. Okemos Education Foundation

    EIN 382571832 · Headquarters: OKEMOS, MI, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  4. Okemos High School Parent Group

    EIN 383107555 · Headquarters: OKEMOS, MI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  5. Okemos Masonic Temple Assoc

    EIN 386092521 · Headquarters: OKEMOS, MI, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  6. Okemos Music Patrons

    EIN 382485477 · Headquarters: OKEMOS, MI, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  7. Okinawan Sanchin-ryu Karate Association

    EIN 382600954 · Headquarters: Leslie, MI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  8. Old Crowd Inc

    EIN 320291495 · Headquarters: Chesterfield Township, MI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  9. Old Forge Cemetery Assoc Irrev

    EIN 900581189 · Headquarters: DETROIT, MI, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  10. Old Homestead Association Inc

    EIN 386071418 · Headquarters: Farmington Hills, MI, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  11. Old Mission Peninsula Historical Society

    EIN 383139637 · Headquarters: Old Mission, MI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  12. Old Mission Peninsula School Pto

    EIN 800182318 · Headquarters: Traverse City, MI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  13. Old Newsboys Assoc of Marine City Mich

    EIN 386094594 · Headquarters: China, MI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  14. Old Newsboys Association of Port Huron Michigan

    EIN 382496656 · Headquarters: MARYSVILLE, MI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  15. Old Newsboys of Flint Inc

    EIN 386020365 · Headquarters: FLINT, MI, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  16. Old Ore Creek Hoa

    EIN 934768261 · Headquarters: Fenton, MI, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  17. Old Saginaw City Inc

    EIN 382367788 · Headquarters: SAGINAW, MI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  18. Old Settlers Post No 4659 Veterans

    EIN 381536644 · Headquarters: SHELBY TOWNSHIP, MI, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  19. Old St Joseph Neighborhood Preservation Association

    EIN 382445113 · Headquarters: Saint Joseph, MI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  20. Old West Side Association Inc

    EIN 237019039 · Headquarters: ANN ARBOR, MI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  21. Olds Forge Flyers Inc

    EIN 386089486 · Headquarters: Lansing, MI, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  22. Oldsmobile Club of America Inc

    EIN 237099735 · Headquarters: EATON RAPIDS, MI, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  23. Oleson Foundation

    EIN 386083080 · Headquarters: TRAVERSE CITY, MI, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  24. Olive Branch Masonic Temple Association

    EIN 382702264 · Headquarters: Warren, MI, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  25. Oliver Dewey Marcks Foundation

    EIN 386081311 · Headquarters: WARREN, MI, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  26. Oliver Felton Charitable Trust First Bank

    EIN 396792654 · Headquarters: MARQUETTE, MI, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  27. Olivet All Sports Boosters Club

    EIN 382428729 · Headquarters: OLIVET, MI, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  28. Ollie and Jones Family Reunion

    EIN 473687105 · Headquarters: FARMINGTON HILLS, MI, US · Unknown & Unclassified · Latest available filing year: 2015 · Primary form: IRS Form 990-N

  29. Olson-Kulka Foundation

    EIN 386074650 · Headquarters: Southfield, MI, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  30. Omega Psi Phi Fraternity

    EIN 382405006 · Headquarters: Muskegon Heights, MI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  31. Omega Psi Phi Fraternity

    EIN 510174202 · Headquarters: Kalamazoo, MI, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  32. Omegabots Robotic Team

    EIN 814047247 · Headquarters: NORTHVILLE, MI, US · Unknown & Unclassified · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  33. Omena Presbyterian Church

    EIN 383488862 · Headquarters: Omena, MI, US · Unknown & Unclassified · Latest available filing year: 2014 · Primary form: IRS Form 990-N

  34. Omena Traverse Yacht Club

    EIN 381641213 · Headquarters: OMENA, MI, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  35. Omicron-rho Alumni Chapter of the Kappa Sigma Fraternity

    EIN 992758390 · Headquarters: Washington Township, MI, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  36. OMNI Community Credit Union

    EIN 381401260 · Headquarters: Battle Creek, MI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  37. Omni Medical Services Inc

    EIN 352656855 · Headquarters: Ypsilanti, MI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  38. Omni Temple

    EIN 335057810 · Headquarters: Willis, MI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  39. On Michigan

    EIN 923719813 · Headquarters: LANSING, MI, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  40. On the Aisle Inc

    EIN 364733101 · Headquarters: St Clair Shores, MI, US · Unknown & Unclassified · Latest available filing year: 2012 · Primary form: IRS Form 990-N

  41. On the Rail 4-H Club

    EIN 933459409 · Headquarters: Benton Harbor, MI, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  42. On-point Shooting Sports 4-H Club

    EIN 933935651 · Headquarters: Fremont, MI, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  43. Onaway Area Ambulance Equipment Fund

    EIN 382200940 · Headquarters: Onaway, MI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  44. One Bloomfield United

    EIN 452032322 · Headquarters: West Bloomfield, MI, US · Unknown & Unclassified · Latest available filing year: 2015 · Primary form: IRS Form 990-N

  45. One Church Midland

    EIN 853994851 · Headquarters: Sanford, MI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  46. One Detroit Credit Union

    EIN 380480308 · Headquarters: DETROIT, MI, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  47. One Detroit for All of Us

    EIN 823653723 · Headquarters: LANSING, MI, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  48. One Hut Project

    EIN 832269833 · Headquarters: Oak Park, MI, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  49. One Life Inc

    EIN 852463049 · Headquarters: Detroit, MI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  50. One True North Fund

    EIN 333465039 · Headquarters: LANSING, MI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  51. One Until Everyone

    EIN 844040249 · Headquarters: Saginaw, MI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  52. Onekama Education Association

    EIN 472958651 · Headquarters: Ludington, MI, US · Unknown & Unclassified · Latest available filing year: 2014 · Primary form: IRS Form 990-N

  53. Onekama Lions Club 4852

    EIN 237333655 · Headquarters: ONEKAMA, MI, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  54. Onequest Foundation

    EIN 383080740 · Headquarters: HOLLAND, MI, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  55. Onigaming Yacht Club

    EIN 382678278 · Headquarters: Houghton, MI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  56. Onsted Education Association Inc

    EIN 382243590 · Headquarters: Tecumseh, MI, USA · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990-EZ

  57. Onsted Wrestling Club

    EIN 383988088 · Headquarters: Manitou Beach, MI, US · Unknown & Unclassified · Latest available filing year: 2016 · Primary form: IRS Form 990-N

  58. Ontonagon Amateur Hockey Association

    EIN 382822681 · Headquarters: Ontonagon, MI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  59. Ontonagon County Cancer Association

    EIN 382865670 · Headquarters: Ontonagon, MI, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  60. Ontonagon County Historical Society

    EIN 386089488 · Headquarters: ONTONAGON, MI, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  61. Ontonagon County Rural Electrification Association

    EIN 380895655 · Headquarters: ONTONAGON, MI, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  62. Ontonagon Golf Club

    EIN 380895690 · Headquarters: Ontonagon, MI, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  63. Ontonagon-white Pine Rotary

    EIN 382842412 · Headquarters: Ontonagon, MI, US · Unknown & Unclassified · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  64. Open Arms Link

    EIN 820763984 · Headquarters: LANSING, MI, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  65. Operating Engineers 324

    EIN 381940673 · Headquarters: Bloomfield Township, MI, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  66. Operating Engineers Local 324 Building Corporation

    EIN 386082362 · Headquarters: BLOOMFIELD TOWNSHIP, MI, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  67. Operating Engineers' Local 324 Journey- Man and Apprentice Training Fund Inc

    EIN 383215444 · Headquarters: HOWELL, MI, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  68. Operating Engineers' Local 324 Labor Management Education Committee

    EIN 382872986 · Headquarters: BLOOMFIELD TOWNSHIP, MI, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  69. Operating Engineers' Local 324 Vacation and Holiday Fund of Michigan

    EIN 386195525 · Headquarters: TROY, MI, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  70. Operation Action Up

    EIN 381710590 · Headquarters: MARQUETTE, MI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  71. Operative Plasterers- and Cement Masons Local 514

    EIN 380407375 · Headquarters: MADISON HEIGHTS, MI, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  72. Opportunities for All Michigan

    EIN 872342269 · Headquarters: Grosse Pointe, MI, US · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  73. Opportunity for Michigans Future

    EIN 823109338 · Headquarters: Lansing, MI, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  74. Optical Illusions the Michigan Blind Skier

    EIN 382132706 · Headquarters: Ortonville, MI, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  75. Opticians Association of Michigan

    EIN 382073268 · Headquarters: DEWITT, MI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  76. Optimist Club Foundation of Central Detroit

    EIN 382832969 · Headquarters: Detroit, MI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  77. Optimist International

    EIN 237010105 · Headquarters: Grand Rapids, MI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  78. Optimist International

    EIN 237010107 · Headquarters: MUSKEGON, MI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  79. Optimist International

    EIN 237068511 · Headquarters: Davison, MI, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  80. Optimist International

    EIN 237105614 · Headquarters: NILES, MI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  81. Optimist International

    EIN 237164897 · Headquarters: West Bloomfield, MI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  82. Optimist International

    EIN 237305565 · Headquarters: KEEGO HARBOR, MI, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  83. Optimist International

    EIN 237396550 · Headquarters: Rogers City, MI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  84. Optimist International

    EIN 300083790 · Headquarters: Howell, MI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  85. Optimist International

    EIN 382258480 · Headquarters: Auburn Hills, MI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  86. Optimist International

    EIN 382319861 · Headquarters: Grosse Pointe Farms, MI, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  87. Optimist International

    EIN 382372072 · Headquarters: West Branch, MI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  88. Optimist International

    EIN 382830122 · Headquarters: Portage, MI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  89. Optimist International

    EIN 382948223 · Headquarters: Auburn Hills, MI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  90. Optimist International

    EIN 382954270 · Headquarters: Mount Pleasant, MI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  91. Optimist International

    EIN 382954974 · Headquarters: Clinton Township, MI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  92. Optimist International

    EIN 383001910 · Headquarters: Battle Creek, MI, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  93. Optimist International

    EIN 383046101 · Headquarters: Roseville, MI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  94. Optimist International

    EIN 383073646 · Headquarters: SAINT CLAIR SHORES, MI, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-EZ

  95. Optimist International

    EIN 383225423 · Headquarters: Muskegon Heights, MI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  96. Optimist International

    EIN 386077017 · Headquarters: Swartz Creek, MI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  97. Optimist International

    EIN 386082289 · Headquarters: Dearborn, MI, US · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  98. Optimist International

    EIN 386088853 · Headquarters: Muskegon, MI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  99. Optimist International

    EIN 386090713 · Headquarters: Ludington, MI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  100. Optimist International

    EIN 386091421 · Headquarters: Canton, MI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

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