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. Marine Corps League

    EIN 956225376 · Headquarters: Sacramento, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  2. Marine Corps League South Coast Detachment 022

    EIN 330450163 · Headquarters: SAN CLEMENTE, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  3. Marine Corps Tankers Association

    EIN 330183517 · Headquarters: EL CAJON, CA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  4. Marine Exchange Lalb Harbor

    EIN 951471115 · Headquarters: SAN PEDRO, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  5. Marine Firemen's Union

    EIN 940740780 · Headquarters: SAN FRANCISCO, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  6. Marine Hotel Association

    EIN 592557841 · Headquarters: SAUSALITO, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  7. Marine Science Institute

    EIN 941719649 · Headquarters: Redwood City, CA, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990

  8. Marine View Middle Ptsa

    EIN 330250515 · Headquarters: HUNTINGTON BEACH, CA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  9. Mariners Christian School

    EIN 330225468 · Headquarters: COSTA MESA, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  10. Marines' Memorial Association

    EIN 941055967 · Headquarters: SAN FRANCISCO, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  11. Marintrace Foundation

    EIN 863972382 · Headquarters: San Francisco, CA, US · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  12. Mario Ghilotti Family Foundation

    EIN 946182691 · Headquarters: SAN RAFAEL, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  13. Mariposa County Chamber of Commerce

    EIN 942577055 · Headquarters: MARIPOSA, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  14. Mariposa County Farm Bureau

    EIN 946102756 · Headquarters: MARIPOSA, CA, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-EZ

  15. Mariposa County Fish & Game Protective Assoc

    EIN 510172444 · Headquarters: Mariposa, CA, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  16. Mariposa County Pioneer Wagon Train Inc

    EIN 770056093 · Headquarters: Mariposa, CA, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  17. Mariposa County Public Financing Corporation

    EIN 311592545 · Headquarters: Mariposa, CA, US · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  18. Mariposa County Schools Foundation

    EIN 770323058 · Headquarters: MARIPOSA, CA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  19. Mariposa Cta

    EIN 471869764 · Headquarters: midpines, CA, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  20. Mariposa Elementary School PTA California Congress

    EIN 956208125 · Headquarters: Brea, CA, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-EZ

  21. Mariposa Gem and Mineral Club

    EIN 770311738 · Headquarters: Mariposa, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  22. Mariposa Golden Agers Incorporated

    EIN 942835728 · Headquarters: Mariposa, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  23. Mariposa Housing Inc

    EIN 770313172 · Headquarters: MONTEREY, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  24. Mariposa Hunters Point Yacht Club

    EIN 237176601 · Headquarters: San Francisco, CA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  25. Mariposa International

    EIN 473882598 · Headquarters: Hayward, CA, US · Unknown & Unclassified · Latest available filing year: 2017 · Primary form: IRS Form 990-N

  26. Mariposa Masonic Temple Association

    EIN 941737383 · Headquarters: Mariposa, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  27. Mariposa Museum & History Center Inc

    EIN 946050425 · Headquarters: Mariposa, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  28. Mariposa Rising Foundation

    EIN 463486986 · Headquarters: Sacramento, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  29. Mariposa-Yosemite Rotary Club

    EIN 942537155 · Headquarters: Mariposa, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  30. Marital Subtrust Ot - Williams Rev Tr/2 Dtd 9/1/1998

    EIN 466390566 · Headquarters: SAN DIEGO, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  31. Maritimo Sport Club

    EIN 770311926 · Headquarters: SANTA CLARA, CA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  32. Mark & Mary Randy Charitable Foundation

    EIN 770326216 · Headquarters: MODESTO, CA, USA · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-PF

  33. Mark and Carolyn Guidry Foundation

    EIN 943185161 · Headquarters: LOS ALTOS, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  34. Mark Chapin Johnson Foundation

    EIN 330441985 · Headquarters: MISSION VIEJO, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  35. Mark Day School

    EIN 942598891 · Headquarters: SAN RAFAEL, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  36. Mark H and Blanche M Harrington Foundation

    EIN 956025594 · Headquarters: ONTARIO, CA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  37. Mark Ka Williams Memorial Scholarship Foundation

    EIN 954166084 · Headquarters: PALM DESERT, CA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  38. Mark Keppel High School Chorale Booster Club

    EIN 933009527 · Headquarters: Monterey Park, CA, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  39. Mark Medina Project to End Homelessness Inc

    EIN 812839606 · Headquarters: CHINO HILLS, CA, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  40. Mark Prairie Heritage

    EIN 474262461 · Headquarters: La Habra, CA, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  41. Mark Talley Memorial Inc

    EIN 953957535 · Headquarters: El Segundo, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  42. Mark Twain Elementary Pta

    EIN 205311021 · Headquarters: RIVERSIDE, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  43. Mark Twain Pta

    EIN 956208299 · Headquarters: LONG BEACH, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  44. Mark West Meadows Mutual Water Company

    EIN 942782437 · Headquarters: Fremont, CA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  45. Market Street Railway

    EIN 942499217 · Headquarters: San Francisco, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  46. Marketing for All

    EIN 922857278 · Headquarters: Walnut Creek, CA, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  47. Markham Arboretum Society

    EIN 942081745 · Headquarters: Concord, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  48. Markleeville Enhancement Club

    EIN 830540934 · Headquarters: Markleeville, CA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  49. Markleeville Water Company

    EIN 941549124 · Headquarters: MARKLEEVILLE, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  50. Marks Growing Center Inc Mustard Seed

    EIN 680024617 · Headquarters: Vacaville, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  51. Marlin Club

    EIN 952123030 · Headquarters: SAN DIEGO, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  52. Maroon & Gold Soccer Boosters

    EIN 770382152 · Headquarters: Simi Valley, CA, US · Unknown & Unclassified · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  53. Marpark Owners Association

    EIN 352627128 · Headquarters: Oakland, CA, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  54. Marquez Knolls Property Owners Association Inc

    EIN 954538074 · Headquarters: Pacific Palisades, CA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  55. Marrakesh Country Club

    EIN 953053333 · Headquarters: PALM DESERT, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  56. Marriage Equality USA Issues Committee

    EIN 263063166 · Headquarters: Oakland, CA, US · Unknown & Unclassified · Latest available filing year: 2010 · Primary form: IRS Form 990-N

  57. Mars Hill University

    EIN 472899880 · Headquarters: Los Angeles, CA, US · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  58. Marsh Robinson Academy of Oral Surgeons Inc

    EIN 953076586 · Headquarters: Whittier, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  59. Marsh Trust for Cryobiological Research & Development Co Jane Devine Trustee

    EIN 686103786 · Headquarters: MORGAN HILL, CA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  60. Marshall Blessing Inc

    EIN 275011019 · Headquarters: Concord, CA, US · Unknown & Unclassified · Latest available filing year: 2012 · Primary form: IRS Form 990-N

  61. Marshall Canyon Mens Golf Club

    EIN 451477972 · Headquarters: La Vern, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  62. Marshall Elementary School Pta

    EIN 542173518 · Headquarters: San Francisco, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  63. Marshall P Riddick Youth Center

    EIN 956096625 · Headquarters: Los Angeles, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  64. Martfam Foundation

    EIN 330102680 · Headquarters: SANTA ANA, CA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  65. Martha 4 USA Veterans Inc

    EIN 811979751 · Headquarters: NORTH HOLLYWOOD, CA, US · Unknown & Unclassified · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  66. Martha Seaney Trust #1020000043 C/o Farmers & Merchants Trust Co

    EIN 956040503 · Headquarters: LONG BEACH, CA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  67. Martha Way Corporation

    EIN 943185162 · Headquarters: SANTA ROSA, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  68. Martial Arts Funding Group

    EIN 264008199 · Headquarters: SACRAMENTO, CA, US · Unknown & Unclassified · Latest available filing year: 2012 · Primary form: IRS Form 990-N

  69. Martin & Clarisse Clancy Foundation

    EIN 330568464 · Headquarters: LONG BEACH, CA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  70. Martin and Ami Weiss Foundation

    EIN 954278230 · Headquarters: ENCINO, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  71. Martin Family Foundation

    EIN 396584789 · Headquarters: SARATOGA, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  72. Martin Family Industries

    EIN 871836983 · Headquarters: SAN DIEGO, CA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  73. Martin Field Foundation

    EIN 946124174 · Headquarters: INDIAN WELLS, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  74. Martin Froeschner & Associates

    EIN 462155033 · Headquarters: Livermore, CA, US · Unknown & Unclassified · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  75. Martin Luther King Jr Rally Committee

    EIN 463587911 · Headquarters: Oakland, CA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  76. Martin Luther King Navy Booster Club

    EIN 330969007 · Headquarters: Riverside, CA, US · Unknown & Unclassified · Latest available filing year: 2011 · Primary form: IRS Form 990-N

  77. Martin V and Martha K Smith Foundation

    EIN 770048451 · Headquarters: CAMARILLO, CA, USA · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990

  78. Martinez Arts Association

    EIN 237107073 · Headquarters: Martinez, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  79. Martinez Chamber of Commerce

    EIN 940659616 · Headquarters: MARTINEZ, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  80. Martinez Citizens for Private Property Parks and Open Space

    EIN 825290463 · Headquarters: Sacramento, CA, US · Unknown & Unclassified · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  81. Martinez Education Foundation

    EIN 680031693 · Headquarters: Martinez, CA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  82. Martinez Fair and Responsible Growth Coalition

    EIN 272428859 · Headquarters: MARTINEZ, CA, US · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  83. Martinez Family Foundation

    EIN 330542809 · Headquarters: ESCONDIDO, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  84. Martinez Gun Club

    EIN 941638007 · Headquarters: MARTINEZ, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  85. Martinez Historical Society

    EIN 942374716 · Headquarters: MARTINEZ, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  86. Martinez Lady Lions

    EIN 871526515 · Headquarters: Martinez, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  87. Martinez Masonic Temple Association

    EIN 454447859 · Headquarters: Martinez, CA, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  88. Martinez Music Mafia

    EIN 834144253 · Headquarters: Martinez, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  89. Martinez Police Officers Association

    EIN 237417584 · Headquarters: MARTINEZ, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  90. Martinez Public Improvement Corporation

    EIN 680190739 · Headquarters: MARTINEZ, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  91. Martinez Rotary Club

    EIN 946174099 · Headquarters: MARTINEZ, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  92. Martinez Sportsmens Club

    EIN 942492644 · Headquarters: MARTINEZ, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  93. Martinez Yacht Club

    EIN 942446256 · Headquarters: Martinez, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  94. Martinez Youth Baseball and Softball Association

    EIN 521288103 · Headquarters: Martinez, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  95. Martinson Child Development Center

    EIN 941709391 · Headquarters: Alviso, CA, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990

  96. Martvest Foundation

    EIN 330617551 · Headquarters: Indio, CA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  97. Marvelous Marin Breakfast Club

    EIN 946135386 · Headquarters: SAN RAFAEL, CA, USA · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-EZ

  98. Marvin Boyer Memorial Scholarship Fund

    EIN 330245562 · Headquarters: SAN DIEGO, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  99. Mary a Crocker Trust

    EIN 946051917 · Headquarters: SAN FRANCISCO, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  100. Mary Aaron Memorial Trust Museum Fund

    EIN 946086487 · Headquarters: YUBA CITY, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

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