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 Institute of Architects Los Angeles Chapter

    EIN 950491170 · Headquarters: LOS ANGELES, CA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  2. American Institute of Architects Monterey Bay Chapter

    EIN 946126832 · Headquarters: Monterey, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  3. American Institute of Architects Pasadena and Foothill Chapter

    EIN 951824223 · Headquarters: PASADENA, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  4. American Institute of Architects Redwood Empire Chapter

    EIN 942778543 · Headquarters: Santa Rosa, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  5. American Institute of Architects San Diego Chapter

    EIN 952006006 · Headquarters: SAN DIEGO, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  6. American Institute of Architects Ventura County Chapter

    EIN 956135731 · Headquarters: Ventura, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  7. American Institute of Chemical Engineers

    EIN 237424910 · Headquarters: Concord, CA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  8. American Institute of Chemical Engineers 21 Southern California L

    EIN 237309961 · Headquarters: CHINO HILLS, CA, US · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  9. American Institute of Commemorative Art Inc

    EIN 131642302 · Headquarters: Santa Barbara, CA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  10. American Institute of Fine Arts

    EIN 956195833 · Headquarters: CORONA, CA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  11. American Institute of Floral Designers

    EIN 953371649 · Headquarters: SACRAMENTO, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  12. American Institute of Graphics Arts Inc San Diego

    EIN 330239800 · Headquarters: San Diego, CA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  13. American Institute of Inspectors Inc

    EIN 943160741 · Headquarters: South Lake Tahoe, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  14. American Institute of Mathematics

    EIN 943205114 · Headquarters: PASADENA, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  15. American Institute of Medical Education

    EIN 953692383 · Headquarters: Olympic Valley, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  16. American Institute of Oral Biology

    EIN 941441071 · Headquarters: Loma Linda, CA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  17. American Institute of Wine and Food

    EIN 942780315 · Headquarters: San Francisco, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  18. American Insurance and Real Estate Association

    EIN 851282767 · Headquarters: IRVINE, CA, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  19. American International Cultural Exchange Inc

    EIN 822949326 · Headquarters: NEWHALL, CA, USA · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990

  20. American International Cultural Exchange Organization

    EIN 364758370 · Headquarters: DIAMOND BAR, CA, US · Unknown & Unclassified · Latest available filing year: 2013 · Primary form: IRS Form 990-N

  21. American Iris Society

    EIN 271307471 · Headquarters: Long Beach, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  22. American Iris Society

    EIN 311743517 · Headquarters: Colton, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  23. American Iris Society

    EIN 571121819 · Headquarters: Los Angeles, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  24. American Iris Society

    EIN 752930422 · Headquarters: Modesto, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  25. American Iris Society

    EIN 770237664 · Headquarters: Madera, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  26. American Iris Society

    EIN 942398636 · Headquarters: Hercules, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  27. American Iris Society

    EIN 942734140 · Headquarters: Healdburg, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  28. American Iris Society

    EIN 942747843 · Headquarters: Watsonville, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  29. American Iris Society

    EIN 942882844 · Headquarters: Sacramento, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  30. American Iris Society

    EIN 953775667 · Headquarters: Los Angeles, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  31. American Iris Society Foundation

    EIN 237230012 · Headquarters: GLENDALE, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  32. American Italian Club of Vista

    EIN 953459445 · Headquarters: Oceanside, CA, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  33. American Ju-jitsu Association

    EIN 237362589 · Headquarters: Valencia, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  34. American Kitefliers Association Inc

    EIN 541165154 · Headquarters: Cedar Ridge, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  35. American Korean Mission for Ukraine

    EIN 471640784 · Headquarters: Garden Grove, CA, US · Unknown & Unclassified · Latest available filing year: 2014 · Primary form: IRS Form 990-N

  36. American Korean Mission for Urraine

    EIN 471645807 · Headquarters: GARDEN GROVE, CA, US · Unknown & Unclassified · Latest available filing year: 2015 · Primary form: IRS Form 990-N

  37. American Langauge Programs Inc

    EIN 770001936 · Headquarters: San Jose, CA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  38. American Law Enforcement Alliance Inc

    EIN 412347236 · Headquarters: SACRAMENTO, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  39. American Lawn Bowls Association

    EIN 953112969 · Headquarters: LOS, CA, US · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  40. American Legion

    EIN 201206026 · Headquarters: Sacramento, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  41. American Legion

    EIN 202020427 · Headquarters: CERES, CA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  42. American Legion

    EIN 237085781 · Headquarters: Danville, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  43. American Legion

    EIN 237136692 · Headquarters: Yreka, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  44. American Legion

    EIN 237145257 · Headquarters: Templeton, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  45. American Legion

    EIN 237186174 · Headquarters: La Crescenta, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  46. American Legion

    EIN 237208522 · Headquarters: PACIFICA, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  47. American Legion

    EIN 237350715 · Headquarters: Rohnert Park, CA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  48. American Legion

    EIN 237400250 · Headquarters: MARTINEZ, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  49. American Legion

    EIN 260737926 · Headquarters: GLENDALE, CA, US · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  50. American Legion

    EIN 270402252 · Headquarters: YORBA LINDA, CA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  51. American Legion

    EIN 300075015 · Headquarters: HAYWARD, CA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  52. American Legion

    EIN 301283948 · Headquarters: LOS ANGELES, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  53. American Legion

    EIN 320309220 · Headquarters: San Francisco, CA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  54. American Legion

    EIN 330254549 · Headquarters: FULLERTON, CA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  55. American Legion

    EIN 330530034 · Headquarters: Carson, CA, US · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  56. American Legion

    EIN 330764677 · Headquarters: Temecula, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  57. American Legion

    EIN 330802164 · Headquarters: Apple Valley, CA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  58. American Legion

    EIN 330817928 · Headquarters: LAKEWOOD, CA, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  59. American Legion

    EIN 364877170 · Headquarters: Truckee, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  60. American Legion

    EIN 462097283 · Headquarters: Santee, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  61. American Legion

    EIN 462606137 · Headquarters: Laguna Niguel, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  62. American Legion

    EIN 464712163 · Headquarters: Rancho Cordova, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  63. American Legion

    EIN 470944258 · Headquarters: Independence, CA, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  64. American Legion

    EIN 471238044 · Headquarters: FALLBROOK, CA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  65. American Legion

    EIN 471580141 · Headquarters: Chowchilla, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  66. American Legion

    EIN 510137656 · Headquarters: Lake Isabella, CA, US · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  67. American Legion

    EIN 510186536 · Headquarters: CUPERTINO, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  68. American Legion

    EIN 510186811 · Headquarters: Lake Arrowhead, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  69. American Legion

    EIN 680266199 · Headquarters: Valley Springs, CA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  70. American Legion

    EIN 680336400 · Headquarters: Vallejo, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  71. American Legion

    EIN 680354587 · Headquarters: Elk Grove, CA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  72. American Legion

    EIN 680355200 · Headquarters: Roseville, CA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  73. American Legion

    EIN 680439682 · Headquarters: san jacinto, CA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  74. American Legion

    EIN 770139568 · Headquarters: Squaw Valley, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  75. American Legion

    EIN 770334879 · Headquarters: Santa Clara, CA, US · Unknown & Unclassified · Latest available filing year: 2010 · Primary form: IRS Form 990-N

  76. American Legion

    EIN 770338233 · Headquarters: Paso Robles, CA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  77. American Legion

    EIN 770400922 · Headquarters: STOCKTON, CA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  78. American Legion

    EIN 770553182 · Headquarters: CAMPBELL, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  79. American Legion

    EIN 800165980 · Headquarters: Long Beach, CA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  80. American Legion

    EIN 800293249 · Headquarters: BOONVILLE, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  81. American Legion

    EIN 821792758 · Headquarters: Rancho Palos Verdes, CA, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  82. American Legion

    EIN 831556793 · Headquarters: Folsom, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  83. American Legion

    EIN 831901293 · Headquarters: NILAND, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  84. American Legion

    EIN 854094472 · Headquarters: Oragne, CA, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  85. American Legion

    EIN 912072626 · Headquarters: Los Angeles, CA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  86. American Legion

    EIN 921693322 · Headquarters: Helendale, CA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  87. American Legion

    EIN 940280838 · Headquarters: Auburn, CA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  88. American Legion

    EIN 940280896 · Headquarters: Marysville, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  89. American Legion

    EIN 940481412 · Headquarters: Eureka, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  90. American Legion

    EIN 941033855 · Headquarters: Antioch, CA, US · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  91. American Legion

    EIN 941143484 · Headquarters: Vallejo, CA, US · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  92. American Legion

    EIN 941377252 · Headquarters: Healdsburg, CA, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  93. American Legion

    EIN 941415604 · Headquarters: Orange Cove, CA, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  94. American Legion

    EIN 941535531 · Headquarters: Kingsburg, CA, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  95. American Legion

    EIN 941548088 · Headquarters: SACRAMENTO, CA, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  96. American Legion

    EIN 942628390 · Headquarters: Reedley, CA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  97. American Legion

    EIN 942635519 · Headquarters: Fremont, CA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  98. American Legion

    EIN 942781985 · Headquarters: Modesto, CA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  99. American Legion

    EIN 943445866 · Headquarters: Woodland Hills, CA, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  100. American Legion

    EIN 946073204 · Headquarters: Livermore, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

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