Nonprofits in California

Nonprofits in California. Browse 229,931 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. Sigma Alpha Mu Fraternity

    EIN 311235020 · Headquarters: San Diego, CA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  2. Sigma Alpha Mu Fraternity

    EIN 510240501 · Headquarters: Davis, CA, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  3. Sigma Alpha Mu Fraternity

    EIN 900446748 · Headquarters: Orange, CA, US · Education · Latest available filing year: 2011 · Primary form: IRS Form 990-N

  4. Sigma Alpha Mu Fraternity Sigma Sigma Chapter

    EIN 510240500 · Headquarters: BERKELEY, CA, USA · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990

  5. Sigma Alpha Omega Christian Sorority Inc

    EIN 270419086 · Headquarters: Chico, CA, US · Education · Latest available filing year: 2011 · Primary form: IRS Form 990-N

  6. Sigma Alpha Omega Christian Sorority Inc

    EIN 820930548 · Headquarters: Costa Mesa, CA, US · Education · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  7. Sigma Alpha Sorority

    EIN 316047264 · Headquarters: BAKERSFIELD, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  8. Sigma Alpha Sorority

    EIN 800334002 · Headquarters: San Luis Obispo, CA, US · Education · Latest available filing year: 2010 · Primary form: IRS Form 990-N

  9. Sigma Alpha Sorority

    EIN 800460268 · Headquarters: Chico, CA, US · Education · Latest available filing year: 2010 · Primary form: IRS Form 990-N

  10. Sigma Beta Xi Inc

    EIN 300779014 · Headquarters: MORENO VALLEY, CA, USA · Public & Societal Benefit · Latest available filing year: 2024 · Primary form: IRS Form 990

  11. Sigma Chapter of Alpha Chi Sigma House Association

    EIN 946136538 · Headquarters: BERKELEY, CA, USA · Community Improvement & Capacity Building · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  12. Sigma Chi - Alpha Upsilon Chapter

    EIN 951222430 · Headquarters: Los Angeles, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  13. Sigma Chi - Delta Eta Chapter

    EIN 951716023 · Headquarters: Los Angeles, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  14. Sigma Chi Alpha Fraternity

    EIN 330367307 · Headquarters: San Marcos, CA, US · Education · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  15. Sigma Chi Fraternity

    EIN 330140394 · Headquarters: POMONA, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  16. Sigma Chi Fraternity

    EIN 455535724 · Headquarters: GRANITE BAY, CA, US · Education · Latest available filing year: 2012 · Primary form: IRS Form 990-N

  17. Sigma Chi Fraternity

    EIN 800339463 · Headquarters: Davis, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  18. Sigma Chi Fraternity

    EIN 823140489 · Headquarters: SAN DIEGO, CA, US · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  19. Sigma Chi Fraternity

    EIN 940276805 · Headquarters: Berkeley, CA, USA · Recreation & Sports · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  20. Sigma Chi Fraternity

    EIN 946109446 · Headquarters: Moraga, CA, US · Education · Latest available filing year: 2011 · Primary form: IRS Form 990-N

  21. Sigma Chi Fraternity

    EIN 954730642 · Headquarters: Malibu, CA, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  22. Sigma Chi Fraternity Beta Pi Chapter

    EIN 930280630 · Headquarters: MORAGA, CA, USA · Education · Latest available filing year: 2016 · Primary form: IRS Form 990-EZ

  23. Sigma Chi Fraternity Epsilon Theta Chapter

    EIN 941242287 · Headquarters: San Jose, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  24. Sigma Chi Fraternity Eta Beta Chapter

    EIN 275106305 · Headquarters: Long Beach, CA, US · Recreation & Sports · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  25. Sigma Chi Fraternity Eta Sigma Chapter

    EIN 050537527 · Headquarters: IRVINE, CA, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-EZ

  26. Sigma Chi Fraternity Housing Corp-f

    EIN 770005955 · Headquarters: FRESNO, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  27. Sigma Chi Fraternity Iota Omega Chapter

    EIN 954245585 · Headquarters: LOS ANGELES, CA, USA · Education · Latest available filing year: 2019 · Primary form: IRS Form 990-EZ

  28. Sigma Chi Fraternity Kappa Theta Chapter

    EIN 680385733 · Headquarters: Chico, CA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  29. Sigma Chi Fraternity Lambda Gamma

    EIN 611602591 · Headquarters: SANTA CLARA, CA, USA · Education · Latest available filing year: 2024 · Primary form: IRS Form 990

  30. Sigma Chi Fraternity Mu Beta Chapter Cal State U San Marcos

    EIN 474947496 · Headquarters: SAN MARCOS, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  31. Sigma Delta Alpha Alumni Corporation

    EIN 455503465 · Headquarters: Cerritos, CA, US · Mutual & Membership Benefit · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  32. Sigma Delta Alpha Fraternity National Board

    EIN 770499924 · Headquarters: Hollister, CA, US · Education · Latest available filing year: 2012 · Primary form: IRS Form 990-N

  33. Sigma Delta Epsilon Graduate Women in Science Inc

    EIN 330250384 · Headquarters: Long Beach, CA, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  34. Sigma Delta Epsilon Graduate Women in Science Inc

    EIN 956095676 · Headquarters: San Diego, CA, US · Education · Latest available filing year: 2017 · Primary form: IRS Form 990-N

  35. Sigma Delta Epsilon Graduate Womens Scientific Frat

    EIN 813819501 · Headquarters: Los Angeles, CA, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  36. Sigma Delta House Corporation

    EIN 863968926 · Headquarters: SAN DIEGO, CA, USA · Education · Latest available filing year: 2024 · Primary form: IRS Form 990

  37. Sigma Delta Phi of Southern Ca Alumnae Association

    EIN 470956701 · Headquarters: North Hollywood, CA, US · Human Services · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  38. Sigma Delta Tau

    EIN 364523926 · Headquarters: Sherman Oaks, CA, US · Education · Latest available filing year: 2014 · Primary form: IRS Form 990-N

  39. Sigma Delta Tau Society Mu Chapter

    EIN 320199065 · Headquarters: LOS ANGELES, CA, USA · Education · Latest available filing year: 2010 · Primary form: IRS Form 990-EZ

  40. Sigma Epsilon Omega National Fraternity

    EIN 851492789 · Headquarters: Sacramento, CA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  41. Sigma Epsilon Omega National Fraternity - Alpha Alumni Chapter

    EIN 861802114 · Headquarters: Sacramento, CA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  42. Sigma Epsilon Omega National Fraternity - Alpha Chpater

    EIN 861840526 · Headquarters: Sacramento, CA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  43. Sigma Epsilon Omega National Fraternity - Alpha Housing Corpora

    EIN 871482418 · Headquarters: Sacramento, CA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  44. Sigma Eta Zeta Chapter

    EIN 522319130 · Headquarters: Long Beach, CA, US · Education · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  45. Sigma Foundation

    EIN 320608623 · Headquarters: Manhattan Beach, CA, US · Education · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  46. Sigma Gamma Rho Sorority

    EIN 851036650 · Headquarters: SAN DIEGO, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  47. Sigma Gamma Rho Sorority Inc

    EIN 205019337 · Headquarters: EASTVALE, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  48. Sigma Gamma Rho Sorority Inc

    EIN 205965868 · Headquarters: San Diego, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  49. Sigma Gamma Rho Sorority Inc

    EIN 260467512 · Headquarters: Los Angeles, CA, US · Education · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  50. Sigma Gamma Rho Sorority Inc

    EIN 270502414 · Headquarters: HAYWARD, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  51. Sigma Gamma Rho Sorority Inc

    EIN 311227360 · Headquarters: Los Angeles, CA, US · Education · Latest available filing year: 2012 · Primary form: IRS Form 990-N

  52. Sigma Gamma Rho Sorority Inc

    EIN 311239025 · Headquarters: Sacramento, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  53. Sigma Gamma Rho Sorority Inc

    EIN 311321575 · Headquarters: Sacramento, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  54. Sigma Gamma Rho Sorority Inc

    EIN 311321576 · Headquarters: LONG BEACH, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  55. Sigma Gamma Rho Sorority Inc

    EIN 311321651 · Headquarters: LOS ANGELES, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  56. Sigma Gamma Rho Sorority Inc

    EIN 311327785 · Headquarters: EMERYVILLE, CA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  57. Sigma Gamma Rho Sorority Inc

    EIN 320211927 · Headquarters: Torrance, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  58. Sigma Gamma Rho Sorority Inc

    EIN 320388349 · Headquarters: LOS ANGELES, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  59. Sigma Gamma Rho Sorority Inc

    EIN 364086913 · Headquarters: RIVERSIDE, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  60. Sigma Gamma Rho Sorority Inc

    EIN 364090297 · Headquarters: CULVER CITY, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  61. Sigma Gamma Rho Sorority Inc

    EIN 364093454 · Headquarters: LOS ANGELES, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  62. Sigma Gamma Rho Sorority Inc

    EIN 364136815 · Headquarters: LOS ANGELES, CA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  63. Sigma Gamma Rho Sorority Inc

    EIN 364766286 · Headquarters: HAYWARD, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  64. Sigma Gamma Rho Sorority Inc

    EIN 384040178 · Headquarters: Mira Loma, CA, US · Unknown & Unclassified · Latest available filing year: 2017 · Primary form: IRS Form 990-N

  65. Sigma Gamma Rho Sorority Inc

    EIN 470984147 · Headquarters: LOS ANGELES, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  66. Sigma Gamma Rho Sorority Inc

    EIN 471254229 · Headquarters: BAKERSFIELD, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  67. Sigma Gamma Rho Sorority Inc

    EIN 611546658 · Headquarters: Los Angeles, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  68. Sigma Gamma Rho Sorority Inc

    EIN 770663859 · Headquarters: San Francisco, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  69. Sigma Gamma Rho Sorority Inc

    EIN 800608374 · Headquarters: EASTVALE, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  70. Sigma Gamma Rho Sorority Inc

    EIN 830589477 · Headquarters: BAKERSFIELD, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  71. Sigma Gamma Rho Sorority Inc

    EIN 854046241 · Headquarters: VICTORVILLE, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  72. Sigma Gamma Rho Sorority Inc

    EIN 911923822 · Headquarters: HEMET, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  73. Sigma Gamma Rho Sorority Inc

    EIN 911949294 · Headquarters: INGLEWOOD, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  74. Sigma Gamma Rho Sorority Inc

    EIN 912024225 · Headquarters: CARSON, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  75. Sigma Gamma Rho Sorority Inc

    EIN 912047296 · Headquarters: HAYWARD, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  76. Sigma Gamma Rho Sorority Inc

    EIN 912136330 · Headquarters: LANCASTER, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  77. Sigma Gamma Rho Sorority Inc

    EIN 946122417 · Headquarters: HAYWARD, CA, US · Education · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  78. Sigma Gamma Rho Sorority Inc

    EIN 956196226 · Headquarters: LOS ANGELES, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  79. Sigma Gamma Rho Sorority Inc - Delta Zeta Sigma Chapter

    EIN 823479900 · Headquarters: Compton, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  80. Sigma Gamma Rho Sorority Inc - Tau Lambda

    EIN 813208105 · Headquarters: Oceanside, CA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  81. Sigma Gamma Rho Sorority Inc Delta Gamma Chapter San Diego State

    EIN 510214051 · Headquarters: SAN DIEGO, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  82. Sigma Gamma Rho Sorority Western Region

    EIN 201616943 · Headquarters: Los Angeles, CA, USA · Education · Latest available filing year: 2024 · Primary form: IRS Form 990

  83. Sigma Gamma Tau National Honor Society in Aerospace Engineering

    EIN 954605197 · Headquarters: Los Angeles, CA, US · Education · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  84. Sigma Kappa Corporation of San Diego

    EIN 952114042 · Headquarters: SAN DIEGO, CA, USA · Education · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  85. Sigma Kappa Foundation Northridge

    EIN 953382284 · Headquarters: Woodland Hills, CA, US · Education · Latest available filing year: 2015 · Primary form: IRS Form 990-N

  86. Sigma Kappa House Corporation Epsilon Lambda

    EIN 237055783 · Headquarters: Citrus Heights, CA, US · Education · Latest available filing year: 2014 · Primary form: IRS Form 990-N

  87. Sigma Kappa Sorority

    EIN 330194032 · Headquarters: Chula Vista, CA, US · Education · Latest available filing year: 2014 · Primary form: IRS Form 990-N

  88. Sigma Kappa Sorority of Berkeley Inc

    EIN 941166469 · Headquarters: Berkeley, CA, USA · Education · Latest available filing year: 2024 · Primary form: IRS Form 990

  89. Sigma Lambda Gamma Northern California Alumnae Association

    EIN 204753903 · Headquarters: Santa Clara, CA, US · Education · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  90. Sigma Nu - Epsilon Pi Chapter

    EIN 951667045 · Headquarters: Los Angeles, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  91. Sigma Nu Alumni Scholarship Fund

    EIN 956193282 · Headquarters: Los Angeles, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  92. Sigma Nu Aztecs for Knowledge & Education Inc

    EIN 812852142 · Headquarters: SAN DIEGO, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  93. Sigma Nu Epsilon Omicron Chapter

    EIN 952528365 · Headquarters: Los Angeles, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  94. Sigma Nu Fraternity

    EIN 237343207 · Headquarters: San Diego, CA, USA · Education · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  95. Sigma Nu Fraternity

    EIN 330465242 · Headquarters: Fullerton, CA, US · Education · Latest available filing year: 2007 · Primary form: IRS Form 990-N

  96. Sigma Nu Fraternity

    EIN 364662586 · Headquarters: Northridge, CA, US · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  97. Sigma Nu Fraternity

    EIN 800712063 · Headquarters: Goleta, CA, US · Education · Latest available filing year: 2013 · Primary form: IRS Form 990-N

  98. Sigma Nu Fraternity

    EIN 940867885 · Headquarters: San Francisco, CA, US · Education · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  99. Sigma Nu Fraternity

    EIN 946104513 · Headquarters: DAVIS, CA, USA · Education · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  100. Sigma Nu Fraternity

    EIN 946136603 · Headquarters: Clovis, CA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

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