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. Alpha Psi of Alpha Delta Pi House Corporation

    EIN 956056936 · Headquarters: Los Angeles, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  2. Alpha Rho Alumni Assn

    EIN 911153825 · Headquarters: MORAGA, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  3. Alpha Sigma Alpha Sorority - Southern California Alumnae Chapte

    EIN 933827342 · Headquarters: San Jacinto, CA, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  4. Alpha Sigma Chapter

    EIN 941188566 · Headquarters: MORAGA, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  5. Alpha Sigma Phi Fraternity Inc

    EIN 992210973 · Headquarters: Modesto, CA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  6. Alpha Tau Delta National Fraternity for Professional Nurses

    EIN 237235850 · Headquarters: Los Angeles, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  7. Alpha Tau Delta National Fraternity for Professional Nurses

    EIN 320457746 · Headquarters: San Jose, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  8. Alpha Tau Delta National Fraternity for Professional Nurses

    EIN 510204760 · Headquarters: Los Angeles, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  9. Alpha Tau Delta National Fraternity for Professional Nurses

    EIN 510204776 · Headquarters: Los Angeles, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  10. Alpha Tau Delta National Fraternity for Professional Nurses

    EIN 510204804 · Headquarters: Los Angeles, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  11. Alpha Tau Delta National Fraternity for Professional Nurses

    EIN 510204817 · Headquarters: Los Angeles, CA, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  12. Alpha Tau Delta National Fraternity for Professional Nurses

    EIN 900527030 · Headquarters: Northridge, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  13. Alpha Tau Delta National Fraternity for Professional Nurses

    EIN 900670785 · Headquarters: Irvine, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  14. Alpha Tau Delta National Fraternity for Professional Nurses

    EIN 954097283 · Headquarters: Los Angeles, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  15. Alpha Tau Omega Fraternity

    EIN 951689420 · Headquarters: Los Angeles, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  16. Alpha Tau Omega House Assoc C/o Edward Hulsy

    EIN 946078276 · Headquarters: SAN FRANCISCO, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  17. Alpha Upsilon Alumni Corporation of San Luis Obispo

    EIN 952467125 · Headquarters: NEWARK, CA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  18. Alpha Xi Building Association Kappa Alpha House Corp

    EIN 946107162 · Headquarters: BERKELEY, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  19. Alpha Xi Delta Alumnae Association of San Diego Ca

    EIN 814091623 · Headquarters: San Diego, CA, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  20. Alpha Zeta Association of Pi Kappa Phi Corp

    EIN 930388548 · Headquarters: MORAGA, CA, USA · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990

  21. Alphonse a Burnand Medical and Educational Foundation

    EIN 956083677 · Headquarters: COSTA MESA, CA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  22. Alpine Cemetery Association

    EIN 951903660 · Headquarters: Alpine, CA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  23. Alpine Chamber of Commerce

    EIN 952313268 · Headquarters: Alpine, CA, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-EZ

  24. Alpine County Chamber of Commerce

    EIN 941698855 · Headquarters: MARKLEEVILLE, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  25. Alpine Harbison Canyon Little Leagu

    EIN 237311469 · Headquarters: ALPINE, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  26. Alpine Hills Tennis & Swimming Club Inc

    EIN 941424758 · Headquarters: PORTOLA VALLEY, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  27. Alpine Historical & Conservation Society

    EIN 237455663 · Headquarters: ALPINE, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  28. Alpine Library Friends Association

    EIN 953170560 · Headquarters: ALPINE, CA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  29. Alpine Meadows Property Owners Association Inc

    EIN 941614906 · Headquarters: COLFAX, CA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  30. Alpine Stagecoach Lions Club

    EIN 203024194 · Headquarters: ALPINE, CA, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  31. Alpine Water Company

    EIN 953255655 · Headquarters: BISHOP, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  32. Alpine Water Users Association

    EIN 950487800 · Headquarters: TWIN PEAKS, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  33. Alpine Woman's Club Scholarship Preservation and Education Foundation

    EIN 330519865 · Headquarters: ALPINE, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  34. Alpine Womans Club

    EIN 956080666 · Headquarters: Alpine, CA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  35. Alpinewest Menlo Little League

    EIN 943105375 · Headquarters: MENLO PARK, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  36. Alram Mutual Water Co Inc

    EIN 770392467 · Headquarters: New Almaden, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  37. ALS and Neuromuscular Research Foundation

    EIN 942786931 · Headquarters: San Francisco, CA, USA · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-EZ

  38. Alta California Eye Research Foundation

    EIN 941683691 · Headquarters: SAN FRANCISCO, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  39. Alta California Regional Center

    EIN 941720511 · Headquarters: SACRAMENTO, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  40. Alta Housing

    EIN 942159989 · Headquarters: Palo Alto, CA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  41. Alta Loma Educators Association

    EIN 953645753 · Headquarters: ONTARIO, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  42. Alta Loma High School Entertainment Boosters Inc

    EIN 931468952 · Headquarters: Alta Loma, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  43. Alta Loma Junior High Ptsa

    EIN 330822297 · Headquarters: Alta Loma, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  44. Alta Loma Pta

    EIN 993194757 · Headquarters: Los Angeles, CA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  45. Alta Mesa Airpark

    EIN 800185688 · Headquarters: Wilton, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  46. Alta Mesa Booster Club

    EIN 900759579 · Headquarters: Redding, CA, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  47. Alta Murrieta Elementary Pta

    EIN 330375080 · Headquarters: MURREITA, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  48. Alta Research Institute

    EIN 412949088 · Headquarters: San Jacinto, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  49. Alta Sierra Airport Owners Association

    EIN 680287752 · Headquarters: GRASS VALLEY, CA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  50. Alta Sierra Mutual Water Company

    EIN 956043193 · Headquarters: Wofford Heights, CA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  51. Alta Sierra Property Owners Associa

    EIN 237348384 · Headquarters: GRASS VALLEY, CA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  52. Alta Vista Credit Union

    EIN 951442266 · Headquarters: REDLANDS, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  53. Alta Vista Foundation Inc

    EIN 952576893 · Headquarters: SANTA BARBARA, CA, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-PF

  54. Alta Vista Golf Association

    EIN 956205394 · Headquarters: PLACENTIA, CA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  55. Alta Vista Heights Homeowners Associatio

    EIN 943119373 · Headquarters: SANTA ROSA, CA, USA · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990-EZ

  56. Alta Vista Water Company

    EIN 237027158 · Headquarters: TERRA BELLA, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  57. Altadena Chamber of Commerce a Corp

    EIN 951570869 · Headquarters: Altadena, CA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  58. Altadena Community Church

    EIN 956000044 · Headquarters: La Crescenta, CA, United States · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  59. Altadena Crown City Kiwanis Foundat Ion

    EIN 956047393 · Headquarters: Altadena, CA, US · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  60. Altadena Golf Club

    EIN 921584223 · Headquarters: Altadena, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  61. Altadena Guild of the Huntington Memorial Hospital

    EIN 956047392 · Headquarters: Pasadena, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  62. Altamed Foundation

    EIN 954090420 · Headquarters: LOS ANGELES, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  63. Alternative Childbirth Educators Inc

    EIN 953837581 · Headquarters: Livermore, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  64. Alternative Family Services Foundation

    EIN 943239351 · Headquarters: SANTA ROSA, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  65. Alternative Group Home Inc

    EIN 330490997 · Headquarters: Riverside, CA, USA · Unknown & Unclassified · Latest available filing year: 2009 · Primary form: IRS Form 990-EZ

  66. Alternatives Pregnancy Center

    EIN 942844514 · Headquarters: Sacramento, CA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  67. Alternatives to Violence Project Inc USA

    EIN 871095875 · Headquarters: Aromas, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  68. Alternatives to Violence Project USA Inc

    EIN 203227168 · Headquarters: Arcadia, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  69. Alternatives to Violence Project USA Inc

    EIN 472212392 · Headquarters: Arcadia, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  70. Alternatives to Violence Project USA Inc

    EIN 832766713 · Headquarters: Santa Rosa, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  71. Alternatives to Violence Project USA Inc

    EIN 853024617 · Headquarters: Lafayette, CA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  72. Alternatives to Violence Project USA Inc

    EIN 883027945 · Headquarters: Arcadia, CA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  73. Altman-aronow Charitable Foundation

    EIN 770261342 · Headquarters: SAN JOSE, CA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  74. Alto Velo Racing Club

    EIN 770377142 · Headquarters: Menlo Park, CA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  75. Altruistic Movement Corporation

    EIN 993002833 · Headquarters: GLENDORA, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  76. Altrusa Club of San Diego California Incorporated

    EIN 371767451 · Headquarters: San Diego, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  77. Altrusa Club of the Central Coast Foundation Inc

    EIN 200022642 · Headquarters: Santa Maria, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  78. Altrusa International Foundation Inc

    EIN 800308023 · Headquarters: VENTURA, CA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  79. Altrusa International Foundation Inc

    EIN 830475717 · Headquarters: La Jolla, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  80. Altrusa International Foundation of Santa Maria

    EIN 770322017 · Headquarters: SANTA MARIA, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  81. Altrusa International Inc

    EIN 352348338 · Headquarters: Santa Maria, CA, US · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  82. Altrusa International Inc

    EIN 822904386 · Headquarters: Anaheim, CA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  83. Altrusa International Inc

    EIN 953104164 · Headquarters: Pismo Beach, CA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  84. Altrusa International Inc

    EIN 953427242 · Headquarters: Ventura, CA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  85. Altrusa International Inc

    EIN 953783577 · Headquarters: OXNARD, CA, US · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  86. Altrusa International Inc

    EIN 956091683 · Headquarters: Santa Maria, CA, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  87. Altrusa International Inc

    EIN 956093138 · Headquarters: Chula Vista, CA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  88. Altrusa International Inc

    EIN 956097376 · Headquarters: RIDGECREST, CA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  89. Altrusa International Inc Central Coast Inc

    EIN 824013802 · Headquarters: Santa Maria, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  90. Altrusa International Inc-san Diego North County Coastalal

    EIN 680624382 · Headquarters: Carlsbad, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  91. Altrusa International of Eastern Sierra Inc

    EIN 824046917 · Headquarters: Bishop, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  92. Altrusa International of Los Angeles Inc

    EIN 842269055 · Headquarters: REDONDO BEACH, CA, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  93. Altrusa Intl District Eleven Inc

    EIN 822846852 · Headquarters: BISHOP, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  94. Altura Centers for Health

    EIN 770465378 · Headquarters: Tulare, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  95. Altura Credit Union

    EIN 952023588 · Headquarters: RIVERSIDE, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  96. Alum Rock Educators Association

    EIN 510159373 · Headquarters: LOS GATOS, CA, USA · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990

  97. Alumnae of the Sacred Heart San Francisco and Menlo Park

    EIN 946093278 · Headquarters: San Francisco, CA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  98. Alumni & Friends of West Visayan Academy

    EIN 474094945 · Headquarters: Riverside, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  99. Alumni and Volunteer Corp of the Ca Rho Chapter Sigma Phi Epsil

    EIN 473841127 · Headquarters: San Diego, CA, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  100. Alumni Association of Southern Medical University-na

    EIN 814421574 · Headquarters: ARCADIA, CA, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

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