Unknown & Unclassified nonprofits in California

Unknown & Unclassified nonprofits in California. Browse 48,218 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. Old Globe Endowment Trust Xxx-xx-xxxx

    EIN 336125358 · Headquarters: SAN DIEGO, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  2. Old Mill Elementary Pta

    EIN 946173276 · Headquarters: MILL VALLEY, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  3. Old Mission Beach Athletic Club

    EIN 953031579 · Headquarters: SAN DIEGO, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  4. Old Mission Grammar School Parents Club

    EIN 953679419 · Headquarters: SAN LUIS OBISPO, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  5. Old Mission Rotary Club Inc

    EIN 956093572 · Headquarters: El Cajon, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  6. Old Monterey Business Association

    EIN 770097315 · Headquarters: MONTEREY, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  7. Old Mountain View Neighborhood Association

    EIN 770637812 · Headquarters: Mountain View, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  8. Old Pros

    EIN 830406456 · Headquarters: Laguna Hills, CA, US · Unknown & Unclassified · Latest available filing year: 2012 · Primary form: IRS Form 990-N

  9. Old River School PTA

    EIN 954653803 · Headquarters: Downey, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  10. Old Riverside Foundation

    EIN 953407036 · Headquarters: Riverside, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  11. Old Timers Fire Fighters Inc

    EIN 942761178 · Headquarters: Corning, CA, US · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  12. Old Town Chamber of Commerce

    EIN 956099551 · Headquarters: SAN DIEGO, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  13. Old Town Clovis Kiwanis Foundation K16030

    EIN 912066789 · Headquarters: CLOVIS, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  14. Old Towne Preservation Association

    EIN 330316696 · Headquarters: ORANGE, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  15. Older Americans Housing Inc

    EIN 942314263 · Headquarters: FRESNO, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  16. Oldtime-holiness Revival Center

    EIN 953786043 · Headquarters: Los Angeles, CA, US · Unknown & Unclassified · Latest available filing year: 2015 · Primary form: IRS Form 990-N

  17. Oldtimers Baseball Association of San Francisco

    EIN 946061093 · Headquarters: SAN FRANCISCO, CA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  18. Olema Cemetery Association

    EIN 680184036 · Headquarters: INVERNESS, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  19. Olg Conference

    EIN 831637680 · Headquarters: SACRAMENTO, CA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  20. Olinda Village Homeowners Association Incorporated

    EIN 952481437 · Headquarters: Brea, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  21. Olinder Residents Inc

    EIN 942370778 · Headquarters: San Jose, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  22. Olita Elementry Pta

    EIN 956207668 · Headquarters: LA HABRA, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  23. Olivas Weekend Womens Golf Club

    EIN 371752935 · Headquarters: Ventura, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  24. Olive Branch Assembly of God of Hemet

    EIN 364017552 · Headquarters: HEMET, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-T

  25. Olive Court Corporation

    EIN 680151668 · Headquarters: FAIRFIELD, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  26. Olive Crest Abused Children's Foundation

    EIN 330367975 · Headquarters: SANTA ANA, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  27. Olive Growers Council of California

    EIN 942349793 · Headquarters: CLOVIS, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  28. Olive View Medical Center Patient Welfare Fund

    EIN 956061214 · Headquarters: Sylmar, CA, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-EZ

  29. Olive View Sanatorium Canteen Fund

    EIN 951858942 · Headquarters: Sylmar, CA, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-EZ

  30. Olive View-ucla Education and Research Institue Inc

    EIN 952249539 · Headquarters: SYLMAR, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  31. Olivenhain Pioneer Elementary School Pta

    EIN 330611904 · Headquarters: CARLSBAD, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  32. Oliver the Road

    EIN 922472807 · Headquarters: LONG BEACH, CA, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  33. Oliver Wendell Holmes Elementary PTA

    EIN 956207672 · Headquarters: San Diego, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  34. Olives Cat Sanctuary 1411

    EIN 934056582 · Headquarters: Hesperia, CA, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  35. Olivet Christian Fellowship in America

    EIN 237203263 · Headquarters: Hacienda Heights, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  36. Olivet Missionary Baptist Church

    EIN 942692148 · Headquarters: Oakland, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  37. Olivewood Memorial Park

    EIN 330960970 · Headquarters: RIVERSIDE, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  38. Olivia Hudson Foundation

    EIN 463048152 · Headquarters: SAN DIEGO, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  39. Olr Wizards

    EIN 454483244 · Headquarters: Fresno, CA, US · Unknown & Unclassified · Latest available filing year: 2017 · Primary form: IRS Form 990-N

  40. Olson Tract Water Association

    EIN 473516049 · Headquarters: Los Gatos, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  41. Olympia Joint Port Labor Relations Committee

    EIN 910716581 · Headquarters: SAN FRANCISCO, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  42. Olympia Phiharmonic Society

    EIN 330329346 · Headquarters: ARCADIA, CA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  43. Olympic Isle Inc

    EIN 237416132 · Headquarters: Atwood, CA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  44. Omalley Foundation

    EIN 952484314 · Headquarters: TORRANCE, CA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  45. Ombience Inc

    EIN 264300641 · Headquarters: PACIFIC PALISADES, CA, US · Unknown & Unclassified · Latest available filing year: 2016 · Primary form: IRS Form 990-N

  46. Omega Alumni of Phi Sigma Kappa

    EIN 943163661 · Headquarters: OAKLAND, CA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  47. Omega Center

    EIN 330163066 · Headquarters: RIALTO, CA, USA · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-PF

  48. Omega House Corporation of Kappa Alpha Theta

    EIN 941042798 · Headquarters: SAN MARCOS, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  49. Omega Learn

    EIN 871025814 · Headquarters: San Jose, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  50. Omega Nu Alpha Iota Chapter

    EIN 946094854 · Headquarters: SONORA, CA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  51. Omega Nu Beta Chapter

    EIN 510212235 · Headquarters: Chico, CA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  52. Omega Psi Phi Franternity

    EIN 854343245 · Headquarters: San Diego, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  53. Omega Psi Phi Franternity

    EIN 862019238 · Headquarters: Oceanside, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  54. Omega Psi Phi Fraternity

    EIN 770107958 · Headquarters: Oxnard, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  55. Omega Psi Phi Fraternity

    EIN 956150710 · Headquarters: Los Angeles, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  56. Omega Psi Phi Fraternity Delta Iota Iota Chapter

    EIN 201125816 · Headquarters: Stockton, CA, US · Unknown & Unclassified · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  57. Omega Psi Phi Fraternity Inc 12Th District

    EIN 911631300 · Headquarters: Los Angeles, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  58. Omeric Rehabilitation Inc

    EIN 237107946 · Headquarters: North Hills, CA, USA · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990

  59. Omg-wtf Action

    EIN 832251946 · Headquarters: VAN NUYS, CA, US · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  60. Omicron Kappa Building Corporation of Chi Omega

    EIN 942352842 · Headquarters: DAVIS, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  61. Omicron Kappa Chapter of Chi Omega

    EIN 942353210 · Headquarters: Davis, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  62. Omicron Kappa Upsilon-honorary Dental Society

    EIN 462577545 · Headquarters: Pomona, CA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  63. Omicron Theta Chi Sorority

    EIN 371657167 · Headquarters: San Francisco, CA, US · Unknown & Unclassified · Latest available filing year: 2012 · Primary form: IRS Form 990-N

  64. Omicron Theta Inc

    EIN 956054227 · Headquarters: SAN JUAN CAPISTRANO, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  65. Omni Family Events Fund

    EIN 953928591 · Headquarters: Los Angeles, CA, US · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  66. OMNI Sports

    EIN 852041994 · Headquarters: Sacramento, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  67. Omni Youth Programs

    EIN 942678792 · Headquarters: SACRAMENTO, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  68. Omotesenke Domonkai Northern California Region

    EIN 941747096 · Headquarters: SAN FRANCISCO, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  69. Oms Social Fund

    EIN 261837703 · Headquarters: San Bernardino, CA, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  70. On Lok House Inc

    EIN 942326678 · Headquarters: SAN FRANCISCO, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  71. On Our Own Inc

    EIN 942889651 · Headquarters: Vallejo, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  72. On Ping Association

    EIN 941507364 · Headquarters: SAN FRANCISCO, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  73. On Shore Foundation

    EIN 954100318 · Headquarters: Los Angeles, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  74. On the Frontline Ministries Inc

    EIN 770558148 · Headquarters: MODESTO, CA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  75. On Vibrato

    EIN 814347713 · Headquarters: Ladera Ranch, CA, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  76. On with Life Training Center

    EIN 711008067 · Headquarters: Inglewood, CA, US · Unknown & Unclassified · Latest available filing year: 2010 · Primary form: IRS Form 990-N

  77. Onbit Foundation

    EIN 392109384 · Headquarters: Pebble Beach, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  78. Onc Productions

    EIN 833080810 · Headquarters: Stockton, CA, USA · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-EZ

  79. Once Upon a Story C/o Robert D Jones

    EIN 330599679 · Headquarters: Mission Viejo, CA, US · Unknown & Unclassified · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  80. Once Upon a Time Family Therapy Center

    EIN 834121183 · Headquarters: GRASS VALLEY, CA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  81. Once Upon a Time Theater

    EIN 814646396 · Headquarters: Malibu, CA, USA · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-EZ

  82. Onclass Corporation

    EIN 814471585 · Headquarters: Sunnyvale, CA, US · Unknown & Unclassified · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  83. Oncology Nursing Society

    EIN 521776763 · Headquarters: Chico, CA, US · Unknown & Unclassified · Latest available filing year: 2007 · Primary form: IRS Form 990-N

  84. Ondalinda Foundation

    EIN 934381040 · Headquarters: WEST HOLLYWOOD, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  85. Ondulando Club Inc

    EIN 956064031 · Headquarters: Ventura, CA, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990

  86. One Archives Foundation

    EIN 953660779 · Headquarters: LOS ANGELES, CA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  87. One Ark Charity

    EIN 991763704 · Headquarters: IRVINE, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  88. One Church

    EIN 942182925 · Headquarters: Modesto, CA, United States · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  89. One Day One Mikvah

    EIN 934533641 · Headquarters: San Lorenzo, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  90. One Do None Foundation

    EIN 901676395 · Headquarters: SAN DIEGO, CA, USA · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-EZ

  91. One East Lane Company

    EIN 942925804 · Headquarters: NEWARK, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  92. One Embrace Inc

    EIN 872082648 · Headquarters: North Highlands, CA, US · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  93. One Fair Wage Action Inc

    EIN 465249734 · Headquarters: OAKLAND, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  94. One Fifty Parker Avenue School

    EIN 941691549 · Headquarters: San Francisco, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  95. One Foot Forward Foundation Inc

    EIN 461446165 · Headquarters: Pasadena, CA, US · Unknown & Unclassified · Latest available filing year: 2013 · Primary form: IRS Form 990-N

  96. One Foot Forward Inc

    EIN 423464454 · Headquarters: Napa, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  97. One God Circle Foundation

    EIN 770298422 · Headquarters: BAKERSFIELD, CA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  98. One Great Sailing Club

    EIN 861484411 · Headquarters: Lafayette, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  99. One Hundred Club of Contra Costa County

    EIN 680084810 · Headquarters: DANVILLE, CA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  100. One Hundred Club of San Mateo County

    EIN 237179241 · Headquarters: San Mateo, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

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