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. Silverado Country Club Membership

    EIN 942819032 · Headquarters: Napa, CA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  2. Silverado Credit Union

    EIN 941276845 · Headquarters: ANGWIN, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  3. Silverado Middle School PTA

    EIN 943402876 · Headquarters: Roseville, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  4. Silverado Trail Pony Club

    EIN 394723437 · Headquarters: NAPA, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  5. Silverliners Socal

    EIN 993446694 · Headquarters: San Clemente, CA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  6. Silverthorn Summer Homes Inc

    EIN 946117558 · Headquarters: BELLA VISTA, CA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  7. Silverwood Elementary Pta

    EIN 237406181 · Headquarters: CONCORD, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  8. Silvio & Mary Garaventa Family Foundation

    EIN 680100302 · Headquarters: CONCORD, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  9. Simchas Rochel

    EIN 922176082 · Headquarters: Los Angeles, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  10. Simha and Sara Lainer Family Foundation

    EIN 956962300 · Headquarters: VAN NUYS, CA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  11. Simi Educators Association

    EIN 952315033 · Headquarters: Simi Valley, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  12. Simi Valley Chamber of Commerce

    EIN 952215253 · Headquarters: SIMI VALLEY, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  13. Simi Valley Chapter 1959 Women of the Moose

    EIN 770393870 · Headquarters: SIMI VALLEY, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  14. Simi Valley Columbian Club Inc

    EIN 952506611 · Headquarters: Simi Valley, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  15. Simi Valley Community Council

    EIN 770317038 · Headquarters: Simi Valley, CA, US · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  16. Simi Valley Corvettes

    EIN 770320874 · Headquarters: Simi Valley, CA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  17. Simi Valley Cultural Arts Center Foundation

    EIN 770411438 · Headquarters: SIMI VALLEY, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  18. Simi Valley Engineers Association

    EIN 992057268 · Headquarters: Simi Valley, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  19. Simi Valley Fliers Radio Control Club

    EIN 953831186 · Headquarters: SIMI VALLEY, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  20. Simi Valley Masonic Temple Association

    EIN 956087591 · Headquarters: Simi Valley, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  21. Simi Valley Moose Lodge 1902

    EIN 952456035 · Headquarters: Simi Valley, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  22. Simi Valley Music Boosters

    EIN 237259724 · Headquarters: SIMI VALLEY, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  23. Simi Valley Police Officers' Association

    EIN 953411056 · Headquarters: SIMI VALLEY, CA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  24. Simi Valley Reserve Police Officers Association

    EIN 912154322 · Headquarters: Simi Valley, CA, US · Unknown & Unclassified · Latest available filing year: 2015 · Primary form: IRS Form 990-N

  25. Simi Valley Unified Group Inc

    EIN 394137654 · Headquarters: Simi Valley, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  26. Simmons Dawson Family Foundation

    EIN 330411052 · Headquarters: LONG BEACH, CA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  27. Simmons Family Charitable Foundation Co Nicholas R Simmons Trustee

    EIN 953978508 · Headquarters: BURBANK, CA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  28. Simone Ascoli

    EIN 452703204 · Headquarters: Roseville, CA, US · Unknown & Unclassified · Latest available filing year: 2012 · Primary form: IRS Form 990-N

  29. Simons House

    EIN 680083073 · Headquarters: Clearlake, CA, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  30. Simple Hygiene Bank

    EIN 833022675 · Headquarters: Sacramento, CA, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  31. Simple Loaf of Bread

    EIN 464727359 · Headquarters: WILTON, CA, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  32. Simplefi Wellness Inc

    EIN 462301946 · Headquarters: Palo Alto, CA, US · Unknown & Unclassified · Latest available filing year: 2014 · Primary form: IRS Form 990-N

  33. Simpson Elementary Pta

    EIN 933835134 · Headquarters: Rialto, CA, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  34. Simpson Psb Fund

    EIN 680168017 · Headquarters: ORINDA, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  35. Sin See Scholarship Committee

    EIN 273486878 · Headquarters: LAGUNA NIGUEL, CA, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  36. Sinag-tala Filipino Theater and Performing Arts Association

    EIN 223901572 · Headquarters: Sacramento, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  37. Sinaloa Lake Owners Association Inc

    EIN 770053612 · Headquarters: CAMARILLO, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  38. Sindhi Association of Southern Ca

    EIN 330269065 · Headquarters: NORWALK, CA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  39. Singing Wood Hill Homeowners Assn

    EIN 953252994 · Headquarters: PALM SPRINGS, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  40. Single Boomers Social Club

    EIN 453515989 · Headquarters: Santa Rosa, CA, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  41. Single Cyclists

    EIN 680291107 · Headquarters: San Rafael, CA, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  42. Single Parents Advocacy and Resource Center

    EIN 852469051 · Headquarters: Sacramento, CA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  43. Singularity Film Inc

    EIN 931391027 · Headquarters: Foster City, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  44. Sinking Deep Ministry

    EIN 393027144 · Headquarters: Newbury Park, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  45. Sinkler Miller Medical Association

    EIN 943101790 · Headquarters: OAKLAND, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  46. Sino American Assoc for Buddhist Practices Inc

    EIN 953640642 · Headquarters: ANAHEIM, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  47. Sino American Buddhist Cultural Center Inc

    EIN 953315547 · Headquarters: Downey, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  48. Sino American Trade Development Association

    EIN 472172957 · Headquarters: TEMPLE CITY, CA, US · Unknown & Unclassified · Latest available filing year: 2016 · Primary form: IRS Form 990-N

  49. Sino-american Century Educational Foundation

    EIN 814826038 · Headquarters: SEAL BEACH, CA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  50. Sino-american Certified Public Accountants Association

    EIN 330632138 · Headquarters: CITY OF INDUSTRY, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  51. Sino-american Finance Association

    EIN 812889235 · Headquarters: EL MONTE, CA, US · Unknown & Unclassified · Latest available filing year: 2016 · Primary form: IRS Form 990-N

  52. SIOR Northern California Chapter

    EIN 942822416 · Headquarters: ORINDA, CA, USA · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990

  53. Sir Thomas Beecham Society Inc

    EIN 800178192 · Headquarters: Topanga, CA, US · Unknown & Unclassified · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  54. Sirens Professional Association of Fire Service Women

    EIN 203945040 · Headquarters: Long Beach, CA, US · Unknown & Unclassified · Latest available filing year: 2010 · Primary form: IRS Form 990-N

  55. Sirrah Foundation

    EIN 770652111 · Headquarters: Los Angeles, CA, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  56. Sisar Mutual Water Co

    EIN 956095719 · Headquarters: SANTA PAULA, CA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  57. Siskiyou Bowmen and Field Archers

    EIN 946107881 · Headquarters: HORNBROOK, CA, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  58. Siskiyou Child Care Council Inc

    EIN 942674706 · Headquarters: WEED, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  59. Siskiyou County Farm Bureau

    EIN 941198510 · Headquarters: YREKA, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  60. Siskiyou County Fire Chiefs Inc

    EIN 941689311 · Headquarters: Yreka, CA, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  61. Siskiyou County Historical Society

    EIN 946107637 · Headquarters: YREKA, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  62. Siskiyou County Library Vestal Foundation

    EIN 680397898 · Headquarters: YREKA, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  63. Siskiyou County Probation and Juvenile Peace Officers Associatio

    EIN 611565666 · Headquarters: Yreka, CA, US · Unknown & Unclassified · Latest available filing year: 2017 · Primary form: IRS Form 990-N

  64. Siskiyou Credit Union

    EIN 941588778 · Headquarters: YREKA, CA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  65. Siskiyou Habitat for Humanity

    EIN 680159627 · Headquarters: YREKA, CA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  66. Siskiyou History Alliance

    EIN 472886566 · Headquarters: Yreka, CA, US · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  67. Siskiyou Institute

    EIN 943167747 · Headquarters: FORT JONES, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  68. Siskiyou Lake Highlands Mutual Water Co

    EIN 680318074 · Headquarters: WEED, CA, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-EZ

  69. Siskiyou Mountain Men

    EIN 680235570 · Headquarters: YREKA, CA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  70. Siskiyou South Lions Club

    EIN 823899071 · Headquarters: Mount Shasta, CA, US · Unknown & Unclassified · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  71. Siskypaa

    EIN 464928496 · Headquarters: Mount Shasta, CA, US · Unknown & Unclassified · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  72. Sister City Affiliation Committee

    EIN 956134130 · Headquarters: Montebello, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  73. Sister City Association of Garden Grove

    EIN 330424471 · Headquarters: GARDEN GROVE, CA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  74. Sister City Association of Huntington Beach Inc

    EIN 330149879 · Headquarters: HUNTINGTON BEACH, CA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  75. Sister City Association of Tracy Inc

    EIN 943127353 · Headquarters: Tracy, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  76. Sister City-ussr

    EIN 680178940 · Headquarters: Santa Rosa, CA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  77. Sister Connection for Breast Cancer

    EIN 142001237 · Headquarters: San Diego, CA, US · Unknown & Unclassified · Latest available filing year: 2008 · Primary form: IRS Form 990-N

  78. Sister League of San Diego Inc

    EIN 951793706 · Headquarters: San Diego, CA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  79. Sister Spice Ministries

    EIN 954183361 · Headquarters: Inglewood, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  80. Sisterhood of the Church of St Sergius of Radonezh

    EIN 812140891 · Headquarters: San Francisco, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  81. Sisters 4 Life Health Equity Group Inc

    EIN 821036069 · Headquarters: Los Angeles, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  82. Sisters Building Sisters Worldwide Ministries Inc

    EIN 300525642 · Headquarters: San Diego, CA, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  83. Sisters Coming Together in the Community

    EIN 923906996 · Headquarters: PASADENA, CA, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-EZ

  84. Sisters in Crime

    EIN 954360219 · Headquarters: S PASADENA, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  85. Sisters of Bethany CVD

    EIN 956071426 · Headquarters: Los Angeles, CA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  86. Sisters of Immaculate Heart of Mary of Mirinae

    EIN 954378226 · Headquarters: Los Angeles, CA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  87. Sisters of Nazareth of Fresno Real Estate Holdings Inc

    EIN 320207003 · Headquarters: San Diego, CA, US · Unknown & Unclassified · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  88. Sisters of Perpetual Indulgence Inc

    EIN 943032120 · Headquarters: San Francisco, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  89. Sisters of Saint Dominic Congregation of the Most Holy Name

    EIN 946080138 · Headquarters: SAN RAFAEL, CA, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-T

  90. Sisters of Scota Wmc

    EIN 800527292 · Headquarters: Dobbins, CA, US · Unknown & Unclassified · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  91. Sisters of St Francis - Mt Alverno Marian Residence

    EIN 204019358 · Headquarters: Santa Maria, CA, USA · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990

  92. Sisters of the One Drum Inc

    EIN 934730222 · Headquarters: Rancho Cucamonga, CA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  93. Sisters Servants of Mary Guild Inc

    EIN 956047896 · Headquarters: Burbank, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  94. Sitike Counseling Center

    EIN 943065810 · Headquarters: SOUTH SAN FRANCISCO, CA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  95. Sitting Room

    EIN 680012414 · Headquarters: Penngrove, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  96. SIU Pacific District Seafarers' Medical Center Fund

    EIN 942430964 · Headquarters: San Francisco, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  97. Siu Pacific District Supplemental Benefits Fund Inc

    EIN 941431246 · Headquarters: SAN FRANCISCO, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  98. Six Californias

    EIN 464920554 · Headquarters: Sacramento, CA, USA · Unknown & Unclassified · Latest available filing year: 2014 · Primary form: IRS Form 990

  99. Six Rivers Lions Club

    EIN 510196616 · Headquarters: BRIDGEVILLE, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  100. Six Rivers Running Club

    EIN 942620979 · Headquarters: ARCATA, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

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