Nonprofits in Castro Valley, California

Nonprofits in Castro Valley, California. Browse 355 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. Inner Wheel USA Inc

    EIN 650145056 · Headquarters: Castro Valley, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  2. Inner Wheel USA Inc

    EIN 660396821 · Headquarters: Castro Valley, CA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  3. Inner Wheel USA Inc

    EIN 680231932 · Headquarters: Castro Valley, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  4. Inner Wheel USA Inc

    EIN 680382539 · Headquarters: Castro Valley, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  5. Inner Wheel USA Inc

    EIN 680426127 · Headquarters: Castro Valley, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  6. Inner Wheel USA Inc

    EIN 680426223 · Headquarters: Castro Valley, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  7. Inner Wheel USA Inc

    EIN 770048933 · Headquarters: Castro Valley, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  8. Inner Wheel USA Inc

    EIN 942667495 · Headquarters: Castro Valley, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  9. Inner Wheel USA Inc

    EIN 942951843 · Headquarters: Castro Valley, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  10. Inner Wheel USA Inc

    EIN 943040252 · Headquarters: Castro Valley, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  11. International Academy of Earthquake Prediction

    EIN 453308949 · Headquarters: Castro Valley, CA, US · Public Safety, Disaster Preparedness & Relief · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  12. International Brotherhood Electrical Workers Health & Welfare Trust Fund 202

    EIN 946109077 · Headquarters: CASTRO VALLEY, CA, US · Mutual & Membership Benefit · Latest available filing year: 2015 · Primary form: IRS Form 990-N

  13. International Org - Unity

    EIN 237506637 · Headquarters: CASTRO VALLEY, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  14. Italian Catholic Federation of California Inc

    EIN 237641100 · Headquarters: Castro Valley, CA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  15. Jenny Lin Foundation

    EIN 943208797 · Headquarters: Castro Valley, CA, US · Crime & Legal Related · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  16. Jullan Foundation

    EIN 813118663 · Headquarters: castro valley, CA, US · Education · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  17. Karol Uryga-Nawarowski Foundation

    EIN 680040630 · Headquarters: Castro Valley, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  18. Keongmas Association

    EIN 264443546 · Headquarters: Castro Valley, CA, US · Education · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  19. Kiante Vernae Foundation

    EIN 822919056 · Headquarters: Castro Valley, CA, US · Mental Health & Crisis Intervention · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  20. Kiwanis International Inc

    EIN 946098390 · Headquarters: Castro Valley, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  21. Knights of Columbus

    EIN 822638614 · Headquarters: Castro Valley, CA, US · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  22. Koamrus Mission Foundation

    EIN 450506797 · Headquarters: Castro Valley, CA, US · Religion Related · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  23. Lake Merritt Sailing Club Incorporated

    EIN 946079614 · Headquarters: CASTRO VALLEY, CA, US · Recreation & Sports · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  24. Lap Dog Lounge and Adoptions

    EIN 821507514 · Headquarters: Castro Valley, CA, US · Animal Related · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  25. Latin America Community Assistance Foundation

    EIN 943154527 · Headquarters: Castro Valley, California, USA · International, Foreign Affairs & National Security · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  26. League of Women Voters of the Eden Area

    EIN 942564627 · Headquarters: Castro Valley, CA, US · Public & Societal Benefit · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  27. Les Dames Descoffier Internationalsan Francisco Chapter

    EIN 205341764 · Headquarters: CASTRO VALLEY, CA, USA · Education · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  28. Level Up Foundation

    EIN 922239982 · Headquarters: Castro Valley, CA, USA · Human Services · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  29. Lglp Ministries

    EIN 464795321 · Headquarters: CASTRO VALLEY, CA, USA · Youth Development · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  30. Light of Hope

    EIN 311794083 · Headquarters: Castro Valley, CA, US · International, Foreign Affairs & National Security · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  31. Little League Baseball Inc

    EIN 270937012 · Headquarters: CASTRO VALLEY, CA, US · Recreation & Sports · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  32. Luso-american Financial a Fraternal Benefit Society

    EIN 237533652 · Headquarters: CASTRO VALLEY, CA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  33. Making Colors Matter Inc

    EIN 832689494 · Headquarters: Castro Valley, CA, US · Youth Development · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  34. Masters Hand Foundation

    EIN 473034111 · Headquarters: CASTRO VALLEY, CA, US · Public & Societal Benefit · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  35. Mei De And Nai Kang Foundation

    EIN 464255458 · Headquarters: Castro Valley, CA, USA · International, Foreign Affairs & National Security · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  36. Mental Health Association For Chinese Communities

    EIN 824322450 · Headquarters: Castro Valley, CA, USA · Mental Health & Crisis Intervention · Latest available filing year: 2025 · Primary form: IRS Form 990

  37. Missions of Compassion

    EIN 300268743 · Headquarters: Castro Valley, CA, USA · Religion Related · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  38. Modern Woodmen of America

    EIN 237502253 · Headquarters: CASTRO VALLEY, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  39. Monastery of St Mary

    EIN 264174163 · Headquarters: Castro Valley, CA, US · Religion Related · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  40. Montessori Discovery of the Child Found

    EIN 943147215 · Headquarters: CASTRO VALLEY, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  41. Mothers with a Purpose

    EIN 453556427 · Headquarters: CASTRO VALLEY, CA, US · Mental Health & Crisis Intervention · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  42. Muhyiddin Ibn Arabi Society

    EIN 942932606 · Headquarters: Castro Valley, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  43. National Image Inc

    EIN 943230743 · Headquarters: CASTRO VALLEY, CA, US · Community Improvement & Capacity Building · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  44. National Junior Basketball

    EIN 943338692 · Headquarters: Castro Valley, CA, US · Recreation & Sports · Latest available filing year: 2014 · Primary form: IRS Form 990-N

  45. National Organization of Mothers of Twins Clubs Inc

    EIN 943275952 · Headquarters: CASTRO VALLEY, CA, US · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  46. National Sos

    EIN 873822965 · Headquarters: Castro Valley, CA, US · Human Services · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  47. Native Sons of the Golden West Piedmont Parlor

    EIN 940708989 · Headquarters: CASTRO VALLEY, CA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  48. Newfoundland Health and Rescue Inc

    EIN 861050607 · Headquarters: Castro Valley, CA, US · Animal Related · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  49. Nfungotah Inc

    EIN 270275370 · Headquarters: Castro Valley, CA, US · Arts, Culture & Humanities · Latest available filing year: 2014 · Primary form: IRS Form 990-N

  50. Norcal Lawmen Football Organization

    EIN 371532234 · Headquarters: Castro Valley, CA, USA · Recreation & Sports · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  51. Norcal Punjabi Youth Foundation Inc

    EIN 454559887 · Headquarters: Castro Valley, CA, US · Arts, Culture & Humanities · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  52. Norris Canyon Property Owners Association

    EIN 946122010 · Headquarters: CASTRO VALLEY, CA, USA · Mutual & Membership Benefit · Latest available filing year: 2016 · Primary form: IRS Form 990-EZ

  53. North Bay Islamic Association

    EIN 680435904 · Headquarters: Castro Valley, CA, US · Religion Related · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  54. North Bay Queens of Cali

    EIN 933166160 · Headquarters: Castro Valley, CA, US · Human Services · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  55. Nuwakot America Samparka Samiti America

    EIN 861224373 · Headquarters: Castro Valley, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  56. Oconnell Family Foundation

    EIN 912065094 · Headquarters: CASTRO VALLEY, CA, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2014 · Primary form: IRS Form 990-PF

  57. One Perfect Circle Inc

    EIN 843370308 · Headquarters: CASTRO VALLEY, CA, USA · Community Improvement & Capacity Building · Latest available filing year: 2020 · Primary form: IRS Form 990-PF

  58. Operation Mom

    EIN 134233326 · Headquarters: Castro Valley, CA, US · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2014 · Primary form: IRS Form 990-N

  59. Oscar Grant Foundation

    EIN 371761761 · Headquarters: Castro Valley, CA, USA · Education · Latest available filing year: 2025 · Primary form: IRS Form 990

  60. Our Safehaven

    EIN 562333786 · Headquarters: CASTRO VALLEY, CA, USA · Human Services · Latest available filing year: 2024 · Primary form: IRS Form 990

  61. Oyster Bay Disc Golf Club

    EIN 873990758 · Headquarters: CASTRO VALLEY, CA, US · Recreation & Sports · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  62. Palomares Elementary Parent Teacher Club

    EIN 861104594 · Headquarters: Castro Valley, CA, US · Education · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  63. Pamela and Richard Rigg Foundation

    EIN 274911450 · Headquarters: CASTRO VALLEY, CA, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  64. Parent Booster USA Inc

    EIN 383883488 · Headquarters: Castro Valley, CA, USA · Education · Latest available filing year: 2024 · Primary form: IRS Form 990

  65. Parents in Tech Alliance

    EIN 850510212 · Headquarters: Castro Valley, CA, US · Science & Technology · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  66. Partimus

    EIN 205033488 · Headquarters: Castro Valley, CA, US · Education · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  67. Partnership for Christian Science Nursing

    EIN 943394834 · Headquarters: CASTRO VALLEY, CA, US · Education · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  68. Paws That Matter

    EIN 843673045 · Headquarters: Castro Valley, CA, US · Animal Related · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  69. Peace and Cross Cultural Education Foundation

    EIN 900907578 · Headquarters: Castro Valley, CA, USA · International, Foreign Affairs & National Security · Latest available filing year: 2025 · Primary form: IRS Form 990

  70. People People Media Foundation

    EIN 854227365 · Headquarters: Castro Valley, CA, US · Arts, Culture & Humanities · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  71. Pictureparity

    EIN 833354120 · Headquarters: Castro Valley, CA, USA · Civil Rights, Social Action & Advocacy · Latest available filing year: 2022 · Primary form: IRS Form 990-EZ

  72. Pilgrim Baptist Church

    EIN 943039437 · Headquarters: Castro Valley, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  73. Pilgrim Organization Inc

    EIN 043656021 · Headquarters: Castro Valley, CA, US · Human Services · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  74. Plantify

    EIN 931608515 · Headquarters: Castro Valley, CA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  75. Playcv Inc

    EIN 871612445 · Headquarters: CASTRO VALLEY, CA, USA · Education · Latest available filing year: 2024 · Primary form: IRS Form 990

  76. Plethos Productions

    EIN 823413654 · Headquarters: Castro Valley, CA, USA · Arts, Culture & Humanities · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  77. Portuguese Fraternal Society of America

    EIN 237532039 · Headquarters: CASTRO VALLEY, CA, US · Mutual & Membership Benefit · Latest available filing year: 2012 · Primary form: IRS Form 990-N

  78. Proctor Elementary PTA

    EIN 943076135 · Headquarters: Castro Valley, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  79. Proctor School Science and Technology Booster Inc

    EIN 450588514 · Headquarters: Castro Valley, CA, US · Education · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  80. Protect Your Record Project Inc

    EIN 352675781 · Headquarters: CASTRO VALLEY, CA, USA · Education · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  81. Pta California Congress of Parents Teachers & Students Inc

    EIN 911923714 · Headquarters: Castro Valley, CA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  82. Pta California Congress of Parents Teachers & Students Inc

    EIN 942925876 · Headquarters: Castro Valley, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  83. Pta California Congress of Parents Teachers & Students Inc

    EIN 943076631 · Headquarters: Castro Valley, CA, US · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  84. Pta California Congress of Parents Teachers & Students Inc

    EIN 943225085 · Headquarters: CASTRO VALLEY, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  85. Pta California Congress of Parents Teachers & Students Inc

    EIN 946172532 · Headquarters: Castro Valley, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  86. Punjabi Cultural Association of Tri Valley

    EIN 261608190 · Headquarters: Castro Valley, CA, US · Arts, Culture & Humanities · Latest available filing year: 2015 · Primary form: IRS Form 990-N

  87. Purogati

    EIN 204050438 · Headquarters: Castro Valley, CA, US · Health Care · Latest available filing year: 2010 · Primary form: IRS Form 990-N

  88. Rahmah Foundation

    EIN 263699782 · Headquarters: Castro Valley, CA, US · International, Foreign Affairs & National Security · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  89. Redwood Christian Schools

    EIN 237069060 · Headquarters: CASTRO VALLEY, CA, USA · Education · Latest available filing year: 2024 · Primary form: IRS Form 990

  90. Regional Parks Foundation

    EIN 237011877 · Headquarters: CASTRO VALLEY, CA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  91. Retired Oakland Police Officers Association

    EIN 270947284 · Headquarters: CASTRO VALLEY, CA, USA · Public Safety, Disaster Preparedness & Relief · Latest available filing year: 2025 · Primary form: IRS Form 990

  92. Rhythmic Pathways

    EIN 880630423 · Headquarters: Castro Valley, CA, USA · Arts, Culture & Humanities · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  93. Rob Warren Leadership Foundation

    EIN 882687983 · Headquarters: Castro Valley, CA, USA · Education · Latest available filing year: 2025 · Primary form: IRS Form 990

  94. Rotary Club of Castro Valley

    EIN 946103454 · Headquarters: Castro Valley, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  95. Rotary Club of Castro Valley- Endowment

    EIN 943090586 · Headquarters: Castro Valley, CA, USA · Community Improvement & Capacity Building · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  96. Row Chabot Inc

    EIN 900113168 · Headquarters: Castro Valley, CA, US · Youth Development · Latest available filing year: 2008 · Primary form: IRS Form 990-N

  97. Rowell Ranch Rodeo Inc

    EIN 942429688 · Headquarters: Castro Valley, CA, USA · Arts, Culture & Humanities · Latest available filing year: 2023 · Primary form: IRS Form 990

  98. Ruby's Place Inc

    EIN 942212241 · Headquarters: CASTRO VALLEY, CA, USA · Housing & Shelter · Latest available filing year: 2024 · Primary form: IRS Form 990

  99. Safe Shared Streets Inc

    EIN 831663899 · Headquarters: CASTRO VALLEY, CA, US · Public Safety, Disaster Preparedness & Relief · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  100. Safehouse Church

    EIN 811859164 · Headquarters: CASTRO VALLEY, CA, US · Religion Related · Latest available filing year: 2022 · Primary form: IRS Form 990-N

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