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. National Association of Letter Carriers

    EIN 942761792 · Headquarters: RICHMOND, CA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  2. National Association of Letter Carriers

    EIN 946089142 · Headquarters: FRESNO, CA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  3. National Association of Letter Carriers

    EIN 946102874 · Headquarters: EUREKA, CA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  4. National Association of Letter Carriers

    EIN 946102876 · Headquarters: Modesto, CA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  5. National Association of Letter Carriers

    EIN 946174022 · Headquarters: STOCKTON, CA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  6. National Association of Letter Carriers

    EIN 946174024 · Headquarters: Napa, CA, USA · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-EZ

  7. National Association of Letter Carriers

    EIN 946174032 · Headquarters: monterey, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  8. National Association of Letter Carriers

    EIN 952474188 · Headquarters: SANTA BARBARA, CA, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-EZ

  9. National Association of Letter Carriers

    EIN 956123856 · Headquarters: Hawthorne, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  10. National Association of Letter Carriers

    EIN 956126065 · Headquarters: SAN BERNARDINO, CA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  11. National Association of Letter Carriers

    EIN 956187849 · Headquarters: BURBANK, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  12. National Association of Letter Carriers

    EIN 956187855 · Headquarters: El Centro, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  13. National Association of Letter Carriers

    EIN 956187872 · Headquarters: Brawley, CA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  14. National Association of Letter Carriers

    EIN 956187877 · Headquarters: Calexico, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  15. National Association of Letter Carriers

    EIN 956187878 · Headquarters: Escondido, CA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  16. National Association of Letter Carriers

    EIN 956187933 · Headquarters: camarillo, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  17. National Association of Letter Carriers

    EIN 956187973 · Headquarters: La Habra, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  18. National Association of Letter Carriers 133 Nalc

    EIN 946102878 · Headquarters: NORTH HIGHLANDS, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  19. National Association of Letter Carriers Branch 1100

    EIN 952818029 · Headquarters: GARDEN GROVE, CA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  20. National Association of Letter Carriers Branch 1427 Santa Clara Ca

    EIN 946102880 · Headquarters: SANTA CLARA, CA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  21. National Association of Letter Carriers Branch 1439

    EIN 330489438 · Headquarters: ONTARIO, CA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  22. National Association of Letter Carriers Branch 1469

    EIN 946174038 · Headquarters: porterville, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  23. National Association of Letter Carriers Branch 193

    EIN 946081608 · Headquarters: SAN JOSE, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  24. National Association of Letter Carriers Branch 2200

    EIN 953600732 · Headquarters: PASADENA, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  25. National Association of Letter Carriers Branch 24

    EIN 956187862 · Headquarters: LOS ANGELES, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  26. National Association of Letter Carriers Branch 3656

    EIN 680453451 · Headquarters: Mendocino, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  27. National Association of Letter Carriers Branch 4430

    EIN 954276842 · Headquarters: LANCASTER, CA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  28. National Association of Letter Carriers Branch 52

    EIN 953450025 · Headquarters: SAN LUIS OBISPO, CA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  29. National Association of Letter Carriers Branch 737

    EIN 956093640 · Headquarters: SANTA ANA, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  30. National Association of Letter Carriers Branch 782

    EIN 956187848 · Headquarters: Bakersfield, CA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  31. National Association of Letter Carriers Branch 857

    EIN 946174027 · Headquarters: Watsonville, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  32. National Association of Letter Carriers California State Association

    EIN 770185729 · Headquarters: Santee, CA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  33. National Association of Letter Carriers Heart of the Valley Branch

    EIN 956187879 · Headquarters: VAN NUYS, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  34. National Association of Letter Carriers Nalc Branch 2901

    EIN 956187889 · Headquarters: HEMET, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  35. National Association of Miniature Enthusiasts

    EIN 311449640 · Headquarters: Culver City, CA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  36. National Association of Miniature Enthusiasts

    EIN 900984023 · Headquarters: Elk Grove, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  37. National Association of Miniature Enthusiasts

    EIN 954058457 · Headquarters: Tarzana, CA, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  38. National Association of Minority Landscape Architects

    EIN 852056701 · Headquarters: Sherman Oaks, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  39. National Association of Neonatal Nurses

    EIN 330651397 · Headquarters: San Bernardino, CA, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  40. National Association of Neonatal Nurses

    EIN 931045008 · Headquarters: San Marcos, CA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  41. National Association of Neonatal Nurses

    EIN 943139241 · Headquarters: Emeryville, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  42. National Association of Orthopaedic Technologists Inc

    EIN 863817002 · Headquarters: El Cajon, CA, US · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  43. National Association of Orthopedic Nurses Inc

    EIN 222646250 · Headquarters: Irvine, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  44. National Association of Postal Supervisors Branch 159

    EIN 472927849 · Headquarters: SAN DIEGO, CA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  45. National Association of Professional Mortgage Women

    EIN 770259967 · Headquarters: Bakersfield, CA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  46. National Association of Professional Mortgage Women

    EIN 770443850 · Headquarters: Visalia, CA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  47. National Association of Retired & Veteran Railway Employees

    EIN 363631735 · Headquarters: Rocklin, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  48. National Association of Retired & Veteran Railway Employees

    EIN 363881123 · Headquarters: Fresno, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  49. National Association of Retired & Veteran Railway Employees

    EIN 465744156 · Headquarters: Pleasant Hill, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  50. National Association of Retired & Veteran Railway Employees

    EIN 800561464 · Headquarters: Barstow, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  51. National Association of Retired & Veteran Railway Employees

    EIN 800737244 · Headquarters: Arcadia, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  52. National Association of Retired & Veteran Railway Employees

    EIN 800750045 · Headquarters: Stockton, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  53. National Association of Retired & Veteran Railway Employees

    EIN 800754045 · Headquarters: Colton, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  54. National Association of Retired & Veteran Railway Employees

    EIN 900908630 · Headquarters: Bakersfield, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  55. National Association of Retired & Veteran Railway Employees

    EIN 946181680 · Headquarters: Mount Shasta, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  56. National Association of Science Writers Inc

    EIN 111782759 · Headquarters: BERKELEY, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  57. National Association of Seventh Day Adventist Dentists

    EIN 956072664 · Headquarters: Loma Linda, CA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  58. National Association of Standby Generator Dealers

    EIN 393389786 · Headquarters: San Ramon, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  59. National Association of Tax Professionals Inc

    EIN 770312596 · Headquarters: RIVERSIDE, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  60. National Association of Teachers of Singing

    EIN 330052616 · Headquarters: Fullerton, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  61. National Association of Teachers of Singing Inc

    EIN 460923247 · Headquarters: Fresno, CA, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  62. National Association of Television Program Executives Inc

    EIN 231709417 · Headquarters: LOS ANGELES, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  63. National Association of the Remodeling Industry Silicon Valley Chapter Inc

    EIN 770331243 · Headquarters: CAMPBELL, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  64. National Association of University Women

    EIN 954546175 · Headquarters: Los Angeles, CA, US · Unknown & Unclassified · Latest available filing year: 2015 · Primary form: IRS Form 990-N

  65. National Association of Watc San Fernando Valley Chapter

    EIN 953714126 · Headquarters: Reseda, CA, US · Unknown & Unclassified · Latest available filing year: 2010 · Primary form: IRS Form 990-N

  66. National Association of Watch & Clock Collectors Inc 69 Orange Cou

    EIN 237303892 · Headquarters: Corona, CA, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  67. National Association of Watch and Clock Collectors

    EIN 510172606 · Headquarters: SAN DIEGO, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  68. National Association of Women Business Owners

    EIN 330476257 · Headquarters: San Diego, CA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  69. National Association of Women Business Owners-orange County

    EIN 330502579 · Headquarters: Los Alamitos, CA, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  70. National Association of Women Business Owners-silicon Valley

    EIN 770222288 · Headquarters: Santa Clara, CA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  71. National Association of Women in Construction

    EIN 300964347 · Headquarters: San Francisco, CA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  72. National Association of Women in Construction

    EIN 510136370 · Headquarters: Clovis, CA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  73. National Association of Women in Construction

    EIN 946105059 · Headquarters: Sacramento, CA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  74. National Association of Women in Construction

    EIN 946122423 · Headquarters: Santa Clara, CA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  75. National Association of Women in Construction

    EIN 956097369 · Headquarters: Los Angeles, CA, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  76. National Association of Women in Construction

    EIN 956120661 · Headquarters: Tustin, CA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  77. National Association Women Business Owners Sacrame

    EIN 680343810 · Headquarters: SACRAMENTO, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  78. National Asssociation of Women Business Owners-la

    EIN 930959834 · Headquarters: LOS ANGELES, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  79. National Auxiliary of the Sons of Union Veterans of Civil War

    EIN 264105684 · Headquarters: Oakland, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  80. National Auxiliary of the Sons of Union Veterans of Civil War

    EIN 371782420 · Headquarters: Gridley, CA, US · Unknown & Unclassified · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  81. National Auxiliary of the Sons of Union Veterans of the Civil War

    EIN 260087008 · Headquarters: Gilroy, CA, US · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  82. National Bicycle Dealers Association

    EIN 330566061 · Headquarters: IRVINE, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  83. National Black Contractors Assocation of USA Inc

    EIN 330397378 · Headquarters: San Diego, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  84. National Black Nurses Association Inc

    EIN 237172050 · Headquarters: LOS ANGELES, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  85. National Black Nurses Association Inc

    EIN 830590751 · Headquarters: SACRAMENTO, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  86. National Bowling Association Junior Program & Scholarship Program Inc

    EIN 133028697 · Headquarters: Antioch, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  87. National Button Society

    EIN 396050508 · Headquarters: SAN DIEGO, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  88. National Campus Violence Reduction Initiative

    EIN 273439758 · Headquarters: Montclair, CA, USA · Unknown & Unclassified · Latest available filing year: 2016 · Primary form: IRS Form 990-EZ

  89. National Center Against Injustice

    EIN 275250609 · Headquarters: Fontana, CA, US · Unknown & Unclassified · Latest available filing year: 2012 · Primary form: IRS Form 990-N

  90. National Center for Employee Ownership

    EIN 521210536 · Headquarters: Covina, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  91. National Center for Equine Facilitated Therapy

    EIN 942378104 · Headquarters: WOODSIDE, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  92. National Center for International Schools

    EIN 943160528 · Headquarters: SAN FRANCISCO, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  93. National Center for Lgbtq Rights Fka National Center for Lesbian Rights

    EIN 943086885 · Headquarters: SACRAMENTO, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  94. National Center for Youth Law

    EIN 942506933 · Headquarters: Oakland, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  95. National Charitable Partners Inc

    EIN 330256090 · Headquarters: SAN DIEGO, CA, USA · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-PF

  96. National Charity League - Capistrano Coast Chapter

    EIN 330238134 · Headquarters: San Juan Capistrano, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  97. National Charity League Coachella Valley

    EIN 956106717 · Headquarters: PALM DESERT, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  98. National Charity League Inc

    EIN 956196017 · Headquarters: PALM SPRINGS, CA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  99. National Charity League Inc Conejo Valley Chapter

    EIN 953553623 · Headquarters: WESTLAKE VILLAGE, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  100. National Charity League Inc Foothill Chapter

    EIN 956060191 · Headquarters: Upland, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

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