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. American Postal Workers Union

    EIN 952791957 · Headquarters: BAKERSFIELD, CA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  2. American Postal Workers Union

    EIN 952860893 · Headquarters: OXNARD, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  3. American Postal Workers Union

    EIN 952868733 · Headquarters: Costa Mesa, CA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  4. American Postal Workers Union

    EIN 956093652 · Headquarters: PASADENA, CA, USA · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-EZ

  5. American Postal Workers Union 1071

    EIN 237338489 · Headquarters: MERCED, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  6. AMERICAN POSTAL WORKERS UNION Aka APWU California Area Local 4635

    EIN 953525119 · Headquarters: Upland, CA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  7. American Postal Workers Union Auxiliary

    EIN 462164230 · Headquarters: Upland, CA, US · Unknown & Unclassified · Latest available filing year: 2013 · Primary form: IRS Form 990-N

  8. American Postal Workers Union Ca

    EIN 237072547 · Headquarters: PALMDALE, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  9. American Postal Workers Union Fresno Local 339

    EIN 237338829 · Headquarters: FRESNO, CA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  10. American Postal Workers Union High Desert Area Local

    EIN 510228313 · Headquarters: Lancaster, CA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  11. American Postal Workers Union Local 197

    EIN 237018453 · Headquarters: SAN DIEGO, CA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  12. American Postal Workers Union Local 960

    EIN 680011587 · Headquarters: REDDING, CA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  13. American Postal Workers Union SF Local

    EIN 942184774 · Headquarters: San Francisco, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  14. American Postal Workers Union Stockton Local 320

    EIN 680146677 · Headquarters: STOCKTON, CA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  15. AMERICAN POSTAL WORKERS UNION Tri County Area Local 0423

    EIN 237340221 · Headquarters: Fontana, CA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  16. American Power Boat Association Region Eleven

    EIN 942930625 · Headquarters: Modesto, CA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  17. American Prime Trust

    EIN 866363425 · Headquarters: Coronado, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  18. American Primrose Primula & Auricula Society Inc

    EIN 936033081 · Headquarters: Alameda, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  19. American Production & Inventory Control Society

    EIN 330711826 · Headquarters: Orange, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  20. American Production & Inventory Control Society

    EIN 770456213 · Headquarters: MADERA, CA, US · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  21. American Production & Inventory Control Society #112

    EIN 953707427 · Headquarters: CLAREMONT, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  22. American Production & Inventory Control Society-Orange County Chapter No 70

    EIN 953391830 · Headquarters: Santa Ana, CA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  23. American Production and Inventory Control Society Chapter 240

    EIN 953750655 · Headquarters: Santa Maria, CA, US · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  24. American Prosthodontic Society

    EIN 316049753 · Headquarters: SAN DIEGO, CA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  25. American Quarter Horse Breeders of Santa Clara Valley

    EIN 510209420 · Headquarters: GILROY, CA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  26. American Radio Association Vacation

    EIN 135611786 · Headquarters: Alameda, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  27. American Region of the Josephite Fathers Charitable Trust

    EIN 201459814 · Headquarters: Santa Maria, CA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  28. American Rehabilitation Economics Association

    EIN 950139087 · Headquarters: EL CAJON, CA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  29. American Relief Family

    EIN 994331258 · Headquarters: Chino Hills, CA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  30. American Rental Association

    EIN 201793829 · Headquarters: Santa Cruz, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  31. American Retirees Association

    EIN 330246743 · Headquarters: Redlands, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  32. American Rhododendron Society

    EIN 680227798 · Headquarters: Eureka, CA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  33. American Rhododendron Society

    EIN 942444289 · Headquarters: PALO ALTO, CA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  34. American Rhododendron Society

    EIN 942839335 · Headquarters: Fort Bragg, CA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  35. American Rhododendron Society

    EIN 946088195 · Headquarters: NOVATO, CA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  36. American Ridge Road Maint Assoc

    EIN 472594411 · Headquarters: QUINCY, CA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  37. American River Canyon North Homeowners Association

    EIN 680239897 · Headquarters: FOLSOM, CA, US · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  38. American River Muzzle Loaders

    EIN 680166550 · Headquarters: Rio Linda, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  39. American River Recreation Association Inc

    EIN 942715986 · Headquarters: Coloma, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  40. American River Republican Women Federated

    EIN 770621219 · Headquarters: Folsom, CA, US · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  41. American Romanian Academy of Arts and Sciences

    EIN 953107639 · Headquarters: CITRUS HEIGHTS, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  42. American Rose Society

    EIN 300667597 · Headquarters: Riverside, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  43. American Rose Society

    EIN 330428167 · Headquarters: TEMECULA, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  44. American Rose Society

    EIN 371564455 · Headquarters: San Diego, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  45. American Rose Society

    EIN 581783187 · Headquarters: Soquel, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  46. American Rose Society

    EIN 581783202 · Headquarters: Redwood City, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  47. American Rose Society

    EIN 581783216 · Headquarters: San Francisco, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  48. American Rose Society

    EIN 581783236 · Headquarters: SANTA BARBARA, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  49. American Rose Society

    EIN 581783638 · Headquarters: VALLEJO, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  50. American Rose Society

    EIN 581783673 · Headquarters: Corte Madera, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  51. American Rose Society

    EIN 581783745 · Headquarters: Los Altos, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  52. American Rose Society

    EIN 581789166 · Headquarters: Palm Desert, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  53. American Rose Society

    EIN 581806341 · Headquarters: Carlsbad, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  54. American Rose Society

    EIN 581832592 · Headquarters: La Mesa, CA, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  55. American Rose Society

    EIN 581832598 · Headquarters: Roseville, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  56. American Rose Society

    EIN 581832601 · Headquarters: Ventura, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  57. American Rose Society

    EIN 581832603 · Headquarters: San Ramon, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  58. American Rose Society

    EIN 581840966 · Headquarters: Costa Mesa, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  59. American Rose Society

    EIN 581883573 · Headquarters: SANTA BARBARA, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  60. American Rose Society

    EIN 581926123 · Headquarters: Tustin, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  61. American Rose Society

    EIN 582151664 · Headquarters: Chico, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  62. American Rose Society

    EIN 621757171 · Headquarters: Woodbridge, CA, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  63. American Rose Society

    EIN 680459782 · Headquarters: Jackson, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  64. American Rose Society

    EIN 770102667 · Headquarters: Sacramento, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  65. American Rose Society

    EIN 900681107 · Headquarters: Studio City, CA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  66. American Rose Society

    EIN 942645646 · Headquarters: Granite Bay, CA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  67. American Rose Society

    EIN 942807096 · Headquarters: Piedmont, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  68. American Rose Society

    EIN 942858504 · Headquarters: Eureka, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  69. American Rose Society

    EIN 943023716 · Headquarters: San Francisco, CA, US · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  70. American Rose Society

    EIN 952285325 · Headquarters: SIERRA MADRE, CA, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  71. American Rose Society

    EIN 954380891 · Headquarters: Santa Clarita, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  72. American Rose Society DBA Redwood Empire Rose Society

    EIN 942761412 · Headquarters: Cotati, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  73. American Slavonic Social Club in Delano

    EIN 952005900 · Headquarters: DELANO, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  74. American Soc Civil Engr SD Section

    EIN 237381239 · Headquarters: San Diego, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  75. American Society for Clinical Laboratory Science

    EIN 237082579 · Headquarters: san bernardino, CA, US · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  76. American Society for Enology and Viticulture

    EIN 946089508 · Headquarters: DAVIS, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  77. American Society for Theatre Research

    EIN 116110103 · Headquarters: SANTA CRUZ, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  78. American Society for Training & Dev

    EIN 510222887 · Headquarters: Rancho Cordova, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  79. American Society for Training & Development - La Chapter

    EIN 952428620 · Headquarters: ANAHEIM, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  80. American Society for Training and Development - San Diego Chapter

    EIN 956196516 · Headquarters: SAN DIEGO, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  81. American Society for Training and Development Usc Special Division

    EIN 800645233 · Headquarters: Los Angeles, CA, US · Unknown & Unclassified · Latest available filing year: 2011 · Primary form: IRS Form 990-N

  82. American Society of Agricultural Engineers

    EIN 680264435 · Headquarters: San Luis Obispo, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  83. American Society of Appraisers

    EIN 521344644 · Headquarters: San Diego, CA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  84. American Society of Appraisers

    EIN 521531700 · Headquarters: LAKE BALBOA, CA, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  85. American Society of Chartered Life Underwriters Fresno Chapter

    EIN 946100072 · Headquarters: Fresno, CA, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  86. American Society of China Scholars

    EIN 800593538 · Headquarters: SAN DIEGO, CA, US · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  87. American Society of Civil Engineers La Section

    EIN 952594246 · Headquarters: Tustin, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  88. American Society of Civil Engineers San Francisco Section

    EIN 941402573 · Headquarters: SAN FRANCISCO, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  89. American Society of Heating Refrigerating & A-c Engineers

    EIN 237382599 · Headquarters: TUSTIN, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  90. American Society of Heating Refrigerating & A-c Engineers

    EIN 770043104 · Headquarters: Turlock, CA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  91. American Society of Heating Refrigerating & A-C Engineers

    EIN 942762892 · Headquarters: Folsom, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  92. American Society of Heating Refrigerating & A-c Engineers

    EIN 954607730 · Headquarters: San Dimas, CA, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  93. American Society of Hiroshima Nagasaki A-bomb Survivors

    EIN 954394038 · Headquarters: Buena Park, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  94. American Society of Interior Designers

    EIN 237417544 · Headquarters: ALISO VIEJO, CA, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-EZ

  95. American Society of Interior Designers Inc

    EIN 237417541 · Headquarters: Redwood City, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  96. American Society of Interior Designers Inc

    EIN 237417542 · Headquarters: Los Angeles, CA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  97. American Society of Interior Designers Inc

    EIN 946055875 · Headquarters: Sonoma, CA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  98. American Society of Landscape Architects Northern California Chapter

    EIN 946102473 · Headquarters: BRENTWOOD, CA, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-EZ

  99. American Society of Landscape Architects Southern California Chapter

    EIN 956071185 · Headquarters: Tustin, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  100. American Society of Media Photographers Inc

    EIN 131529272 · Headquarters: SAN FRANCISCO, CA, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990

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