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. O J Cloughly Educational Fdn

    EIN 436110578 · Headquarters: DALLAS, TX, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  2. O J Stout Scholarship Fund United Bank Trustee

    EIN 556029015 · Headquarters: PARKERSBURG, WV, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  3. O Jack Printz Charitable Foundation 10014600

    EIN 436306546 · Headquarters: KANSAS CITY, MO, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  4. O Jai Valley Chapt 1775 Women of the Moose

    EIN 770181258 · Headquarters: Glendale, AZ, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  5. O L Halsell Foundation

    EIN 956027266 · Headquarters: COSTA MESA, CA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  6. O L Loreto Family Housing Development Fund Corporation

    EIN 272237468 · Headquarters: Brooklyn, NY, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  7. O L Slaton Middle School

    EIN 756062619 · Headquarters: Lubbock, TX, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  8. O Leonard Moretz Fdn Tua

    EIN 580012117 · Headquarters: HICKORY, NC, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  9. O Max Gardner Foundation Inc

    EIN 560490704 · Headquarters: CARRBORO, NC, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  10. O Natalie Proctor Revocable Trust Xxxxx8003

    EIN 866216569 · Headquarters: CHICAGO, IL, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  11. O Neill Friends of the Library Inc

    EIN 470689920 · Headquarters: ONeill, NE, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  12. O Paul Decker Memorial Foundation

    EIN 366112151 · Headquarters: MONTGOMERY, TX, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  13. O R a Education Foundation Dba Oklahoma Hospitality Foundation

    EIN 731006627 · Headquarters: OKLAHOMA CITY, OK, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  14. O R U Golden Eagle Club Inc

    EIN 237164698 · Headquarters: Tulsa, OK, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  15. O S B C T Training Foundation

    EIN 311149656 · Headquarters: COLUMBUS, OH, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  16. O T C Employees Club

    EIN 411296955 · Headquarters: Owatonna, MN, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  17. O Temple Sloan Jr Foundation

    EIN 561870844 · Headquarters: RALEIGH, NC, USA · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-PF

  18. O U T R E a C H

    EIN 331157945 · Headquarters: Mt Gilead, NC, US · Unknown & Unclassified · Latest available filing year: 2008 · Primary form: IRS Form 990-N

  19. O W Davis Tr Uw Char

    EIN 316019413 · Headquarters: PITTSBURGH, PA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  20. O W Havens Foundation

    EIN 222175726 · Headquarters: JOHNS ISLAND, SC, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  21. O Yes I Can

    EIN 271412836 · Headquarters: Columbia, MO, US · Unknown & Unclassified · Latest available filing year: 2011 · Primary form: IRS Form 990-N

  22. O&r Global Messes & Recreation

    EIN 364669728 · Headquarters: Arlington, VA, US · Unknown & Unclassified · Latest available filing year: 2010 · Primary form: IRS Form 990-N

  23. O'bleness Charles - Foundation

    EIN 316042978 · Headquarters: COLUMBUS, OH, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  24. O'brien County Sportsmen's Club

    EIN 421281891 · Headquarters: ARCHER, IA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  25. O'brien Foundation

    EIN 746062067 · Headquarters: REFUGIO, TX, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  26. O'brien Memorial Library

    EIN 943060866 · Headquarters: BLUE RIVER, OR, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  27. O'brien-vrba Scholarship Tuw

    EIN 376277500 · Headquarters: PITTSBURGH, PA, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-PF

  28. O'brion Frank Trust Uw

    EIN 066154532 · Headquarters: BROOKLYN, OH, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  29. O'Bryan Foundation

    EIN 366199176 · Headquarters: Wilmington, DE, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  30. O'Bryonville Business Association

    EIN 311250580 · Headquarters: Cincinnati, OH, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  31. O'callaghan Family Foundation

    EIN 931285835 · Headquarters: NEWPORT, OR, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  32. O'connell Family Foundation Inc C/o Daniel S O'connell

    EIN 133745912 · Headquarters: GREENWICH, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  33. O'connell Nell V Tuw

    EIN 946058893 · Headquarters: SAINT LOUIS, MO, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  34. O'connell Thomas J - Tuw

    EIN 946064086 · Headquarters: SAINT LOUIS, MO, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  35. O'connor Co-piller Foundation

    EIN 480932998 · Headquarters: LAWRENCE, KS, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  36. O'connor Moseley Foundation

    EIN 431474292 · Headquarters: MISSION, KS, USA · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-PF

  37. O'connor William B Tuw

    EIN 826062179 · Headquarters: SAINT LOUIS, MO, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  38. O'dea High School Foundation

    EIN 911307532 · Headquarters: SEATTLE, WA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  39. O'dell Women's Center Inc

    EIN 866746563 · Headquarters: SPRINGFIELD, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  40. O'donnell Foundation

    EIN 756023326 · Headquarters: DALLAS, TX, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  41. O'donnell Iselin Foundation Inc

    EIN 516016471 · Headquarters: VALLEY STREAM, NY, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  42. O'Fallon Columbus Club Inc

    EIN 370845242 · Headquarters: O Fallon, IL, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  43. O'fallon Elks Lodge #2587

    EIN 510241027 · Headquarters: OFALLON, MO, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  44. O'fallon Fire Department of O'fallon Illinois

    EIN 376032524 · Headquarters: OFALLON, IL, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  45. O'Fallon-Shiloh Chamber of Commerce

    EIN 371059980 · Headquarters: OFallon, IL, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  46. O'leary Tuw Fbo St Jeromes Parish

    EIN 036016859 · Headquarters: BUFFALO, NY, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  47. O'Malley PTA

    EIN 920102442 · Headquarters: Anchorage, AK, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  48. O'meara Foundation Inc

    EIN 066034580 · Headquarters: WETHERSFIELD, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  49. O'meara J Law School Scholarship

    EIN 356399940 · Headquarters: SAINT LOUIS, MO, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  50. O'neal Credit Union

    EIN 630459546 · Headquarters: BIRMINGHAM, AL, USA · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990

  51. O'neill Area Chamber of Commerce

    EIN 470527399 · Headquarters: ONEILL, NE, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  52. O'neill Senior Center Inc

    EIN 311172529 · Headquarters: MARIETTA, OH, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  53. O'rourke Schof Family Foundation

    EIN 356437238 · Headquarters: FORT WAYNE, IN, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  54. O-a Incorporated

    EIN 275490626 · Headquarters: Tulsa, OK, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  55. O-ia-da Intl Inc

    EIN 223555210 · Headquarters: ELIZABETH, NJ, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  56. O-k Chisholm Trail Cattle Drovers Association

    EIN 815201224 · Headquarters: MEDFORD, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  57. O-zi-ya Community Club

    EIN 872105902 · Headquarters: Stanwood, WA, US · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  58. O2 Project

    EIN 932610234 · Headquarters: Jupiter, FL, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  59. O2 to the Rescue

    EIN 611674885 · Headquarters: Melbourne, FL, US · Unknown & Unclassified · Latest available filing year: 2017 · Primary form: IRS Form 990-N

  60. O3 Safe

    EIN 842767590 · Headquarters: Sioux Center, IA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  61. Oa Bargaining Unit Sunshine Fund

    EIN 611685369 · Headquarters: Boston, MA, US · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  62. Oaa89 Northamerica

    EIN 461235324 · Headquarters: MILPITAS, CA, US · Unknown & Unclassified · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  63. Oabcig Education Association

    EIN 237439588 · Headquarters: Ida Grove, IA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  64. Oac Swim Team

    EIN 272179330 · Headquarters: suwanee, GA, US · Unknown & Unclassified · Latest available filing year: 2012 · Primary form: IRS Form 990-N

  65. Oada Legal Defense Fund

    EIN 311163138 · Headquarters: DUBLIN, OH, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  66. Oagc Foundation Inc

    EIN 311143137 · Headquarters: Greeville, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  67. Oagc Region 4

    EIN 263125878 · Headquarters: Liberty Twp, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  68. Oagc Region 9

    EIN 272591106 · Headquarters: Reynoldsburg, OH, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  69. Oahe Chapel Preservation Society

    EIN 363358777 · Headquarters: Pierre, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  70. Oahe Child Development Center Inc

    EIN 237140269 · Headquarters: PIERRE, SD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  71. Oahe Electric Cooperative

    EIN 460221074 · Headquarters: Blunt, SD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  72. Oahe Habitat for Humanity Inc

    EIN 460430669 · Headquarters: PIERRE, SD, USA · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-EZ

  73. Oahspe Foundation

    EIN 237426862 · Headquarters: ASHLAND, OR, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  74. Oahu Cattlemens Association

    EIN 990268423 · Headquarters: Kapolei, HI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  75. Oahu Cemetery Assn Perpetual Care Trust

    EIN 996017086 · Headquarters: NASHVILLE, TN, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  76. Oahu Cemetery Association

    EIN 990050635 · Headquarters: HONOLULU, HI, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  77. Oahu Company of Historic Swordsmanship

    EIN 884262033 · Headquarters: HONOLULU, HI, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  78. Oahu Country Club

    EIN 990050650 · Headquarters: HONOLULU, HI, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  79. Oahu House Inc

    EIN 990315288 · Headquarters: HONOLULU, HI, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990

  80. Oahu International Christian Missio

    EIN 263558901 · Headquarters: WAIPAHU, HI, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  81. Oahu Junior Golf Association

    EIN 990149813 · Headquarters: PEARL CITY, HI, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  82. Oahu Mathematics League

    EIN 990284187 · Headquarters: Honolu, HI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  83. Oahu Military Homeschoolers Connection

    EIN 454251392 · Headquarters: Pearl City, HI, US · Unknown & Unclassified · Latest available filing year: 2014 · Primary form: IRS Form 990-N

  84. Oahu Retired Teachers Association

    EIN 996008893 · Headquarters: Honolulu, HI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  85. Oahu Vollyball Association

    EIN 990326035 · Headquarters: Honolulu, HI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  86. Oahu White Lightning Squad

    EIN 463145174 · Headquarters: Aiea, HI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  87. Oak Alley Foundation

    EIN 726032652 · Headquarters: Vacherie, LA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  88. Oak Avenue Properties

    EIN 824373534 · Headquarters: PANAMA CITY, FL, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  89. Oak Avenue School PTA

    EIN 956207647 · Headquarters: Los Altos, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  90. Oak Bluff Property Owners Association

    EIN 237102021 · Headquarters: Northport, AL, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  91. Oak Bluffs Assocation Inc

    EIN 043110673 · Headquarters: Oak Bluffs, MA, USA · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-EZ

  92. Oak Bluffs School Parent Teacher Organization

    EIN 043066372 · Headquarters: Oak Bluffs, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  93. Oak Branch Cemetery Assoc

    EIN 756019868 · Headquarters: MAYPERAL, TX, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  94. Oak Brook Civic Association

    EIN 363633960 · Headquarters: OAK BROOK, IL, US · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  95. Oak Brook Educational Foundation

    EIN 472664969 · Headquarters: oak brook, IL, US · Unknown & Unclassified · Latest available filing year: 2016 · Primary form: IRS Form 990-N

  96. Oak Brook Historical Society

    EIN 362929335 · Headquarters: Oak Brook, IL, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  97. Oak Brook Womens Club

    EIN 363028733 · Headquarters: Oak Brook, IL, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  98. Oak Center Towers

    EIN 942148270 · Headquarters: Glendale, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  99. Oak City Christian Church

    EIN 561392360 · Headquarters: Oak City, NC, US · Unknown & Unclassified · Latest available filing year: 2007 · Primary form: IRS Form 990-N

  100. Oak City Cycling Race Team

    EIN 334108147 · Headquarters: Raleigh, NC, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

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