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. Orange County Amateur Radio Club Inc

    EIN 956049642 · Headquarters: Tustin, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  2. Orange County Apartment House Associatio

    EIN 952245478 · Headquarters: Anaheim, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  3. Orange County Area Service Office of Narcotics Anonymous

    EIN 930994593 · Headquarters: ANAHEIM, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  4. Orange County Arts and Disability

    EIN 953252590 · Headquarters: Anaheim, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  5. Orange County Asian American Bar Asso

    EIN 330604476 · Headquarters: NEWPORT BEACH, CA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  6. Orange County Association for Buddhist Practices Inc

    EIN 330420666 · Headquarters: ANAHEIM, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  7. Orange County Association for Mental Health

    EIN 952036972 · Headquarters: SANTA ANA, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  8. Orange County Association of Health Underwriters

    EIN 330188496 · Headquarters: ORANGE, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  9. Orange County Astronomers

    EIN 237140331 · Headquarters: Costa Mesa, CA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  10. Orange County Athletic Directors Association

    EIN 330405416 · Headquarters: Irvine, CA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  11. Orange County Attorneys Association

    EIN 330166816 · Headquarters: SANTA ANA, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  12. Orange County Automobile Dealers Assoc

    EIN 952126029 · Headquarters: Newport Beach, CA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  13. Orange County Bar Association

    EIN 952395855 · Headquarters: NEWPORT BEACH, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  14. Orange County Bicycle Coalition

    EIN 330623176 · Headquarters: San Clemente, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  15. Orange County Business Council

    EIN 237084107 · Headquarters: IRVINE, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  16. Orange County California Genealogical Society

    EIN 956116860 · Headquarters: Huntington Beach, CA, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  17. Orange County Callers Association

    EIN 800781886 · Headquarters: Palm Springs, CA, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  18. Orange County Central Lions Club Inc

    EIN 453557540 · Headquarters: ORANGE, CA, USA · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-EZ

  19. Orange County Chapter American Society for Training and Development

    EIN 953722294 · Headquarters: ANAHEIM, CA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  20. Orange County Chapter Charities Inc

    EIN 953416160 · Headquarters: WESTMINSTER, CA, USA · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990

  21. Orange County Chapter Neca

    EIN 952076968 · Headquarters: ORANGE, CA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  22. Orange County Chapter of Risk Management Association

    EIN 311602374 · Headquarters: TUSTIN, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  23. Orange County Chapter of the Piano Technicians Guild Inc

    EIN 330591380 · Headquarters: Oceanside, CA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  24. Orange County Chapter the American Institute of Architects

    EIN 952250295 · Headquarters: NEWPORT BEACH, CA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  25. Orange County Chapter The Institute of Internal

    EIN 953030657 · Headquarters: Irvine, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  26. Orange County Child Care Association

    EIN 953285550 · Headquarters: Santa Ana, CA, USA · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-EZ

  27. Orange County Chinese American Chamber of Commerce

    EIN 330370396 · Headquarters: IRVINE, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  28. Orange County Citizens for the Prevention of Gun Violence

    EIN 330663734 · Headquarters: Trabuco Canyon, CA, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  29. Orange County Commercial Association of Realtors

    EIN 330626503 · Headquarters: Anaheim, CA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  30. Orange County Community Praise Choir

    EIN 453663308 · Headquarters: Westminster, CA, US · Unknown & Unclassified · Latest available filing year: 2015 · Primary form: IRS Form 990-N

  31. Orange County Council 039 Boy Scouts of America

    EIN 951727660 · Headquarters: SANTA ANA, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  32. Orange County Council of Hospital Volunteers

    EIN 330667209 · Headquarters: Anaheim, CA, US · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  33. Orange County Council of Parent Participation Nursery Schools

    EIN 237257542 · Headquarters: MISSION VIEJO, CA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  34. Orange County Crazies Inc

    EIN 330575320 · Headquarters: SANTA ANA, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  35. Orange County Democratic Socialists of America

    EIN 851193957 · Headquarters: Santa Ana, CA, US · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  36. Orange County Dental Society Inc

    EIN 951820365 · Headquarters: ORANGE, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  37. Orange County District Calif Garden Clubs Inc

    EIN 330579986 · Headquarters: Lake Forest, CA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  38. Orange County Education Advancement Network

    EIN 330646347 · Headquarters: SANTA ANA, CA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  39. Orange County Educators Uniserv

    EIN 460537745 · Headquarters: ORANGE, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  40. Orange County Electrical Joint Apprenticeship and Training Trust

    EIN 957129576 · Headquarters: SANTA ANA, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  41. Orange County Employee Benefit Council

    EIN 330018347 · Headquarters: RANCHO MISSION VIEJO, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  42. Orange County Employees Association

    EIN 951685796 · Headquarters: Santa Ana, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  43. Orange County Escrow Association

    EIN 952418859 · Headquarters: Pico Rivera, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  44. Orange County Estate Planning Council

    EIN 953105008 · Headquarters: ORANGE, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  45. Orange County Fair Housing

    EIN 952538829 · Headquarters: SANTA ANA, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  46. Orange County Farm Bureau Inc

    EIN 951695258 · Headquarters: IRVINE, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  47. Orange County Figure Skating Club Inc

    EIN 953213727 · Headquarters: Laguna Hills, CA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  48. Orange County Fire Authority Firefighters Benevolent Association

    EIN 330189613 · Headquarters: Irvine, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  49. Orange County Flyers

    EIN 952512665 · Headquarters: Laguna Niguel, CA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  50. Orange County Four Season Orchestra

    EIN 330437592 · Headquarters: REDONDO BEACH, CA, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-EZ

  51. Orange County Fuchsia Society

    EIN 464898127 · Headquarters: Upland, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  52. Orange County Funeral Directors Association Inc

    EIN 953567565 · Headquarters: Orange, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  53. Orange County Head Start

    EIN 953411088 · Headquarters: Santa Ana, CA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  54. Orange County Historians

    EIN 473430119 · Headquarters: Brea, CA, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  55. Orange County Historical Society

    EIN 330015061 · Headquarters: SANTA ANA, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  56. Orange County Homeland Security Advisory Committee

    EIN 472887213 · Headquarters: NEWPORT BEACH, CA, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  57. Orange County Horse Shows Association

    EIN 330149825 · Headquarters: RCHO STA MARG, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  58. Orange County Housing Foundation

    EIN 953927716 · Headquarters: CHATSWORTH, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  59. Orange County Ibew-neca Labor-management Cooperation Committee

    EIN 330111811 · Headquarters: ORANGE, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  60. Orange County Independent Media Inc

    EIN 931814205 · Headquarters: Laguna Beach, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  61. Orange County Intellectual Property Law Association

    EIN 330327291 · Headquarters: Newport Beach, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  62. Orange County Intergroup Assoc Inc

    EIN 956100366 · Headquarters: SANTA ANA, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  63. Orange County Intergroup of Overeaters Anonymous Inc

    EIN 952861390 · Headquarters: SANTA ANA, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  64. Orange County Italian Cultural Association

    EIN 203623685 · Headquarters: Newport Coast, CA, US · Unknown & Unclassified · Latest available filing year: 2015 · Primary form: IRS Form 990-N

  65. Orange County Justice Fund

    EIN 823099041 · Headquarters: SANTA ANA, CA, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990

  66. Orange County Labor Federation Afl-cio

    EIN 950614067 · Headquarters: ORANGE, CA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  67. Orange County Lost Chord Club

    EIN 953282869 · Headquarters: Huntington Beach, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  68. Orange County Masonic Memorial Foundation

    EIN 953804502 · Headquarters: Santa Ana, CA, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  69. Orange County Masonic Officers Association

    EIN 454388902 · Headquarters: BUENA PARK, CA, US · Unknown & Unclassified · Latest available filing year: 2016 · Primary form: IRS Form 990-N

  70. Orange County Mathematics Council

    EIN 330207800 · Headquarters: Anaheim, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  71. Orange County Medical Association

    EIN 951605788 · Headquarters: NEWPORT BEACH, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  72. Orange County Mens Golf Club

    EIN 831350576 · Headquarters: PLACENTIA, CA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  73. Orange County Metropolitan Ballet Company

    EIN 330375945 · Headquarters: Huntington Beach, CA, USA · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-EZ

  74. Orange County Model a Ford Club

    EIN 330046370 · Headquarters: SANTA ANA, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  75. Orange County Musicians Union Local 7 Afm

    EIN 951537366 · Headquarters: SANTA ANA, CA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  76. Orange County Optometric Society

    EIN 956122686 · Headquarters: PLACENTIA, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  77. Orange County Orchid Society

    EIN 943462750 · Headquarters: Yorba Linda, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  78. Orange County Paralegal Association

    EIN 330197201 · Headquarters: Newport Beach, CA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  79. Orange County Peace Corps Association

    EIN 800629022 · Headquarters: SANTA ANA, CA, US · Unknown & Unclassified · Latest available filing year: 2016 · Primary form: IRS Form 990-N

  80. Orange County People for Animals

    EIN 330553824 · Headquarters: YORBA LINDA, CA, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  81. Orange County Podiatric Medical Association

    EIN 953274013 · Headquarters: FULLERTON, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  82. Orange County Police Canine Assoc

    EIN 330368481 · Headquarters: SANTA ANA, CA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  83. Orange County Private School Association

    EIN 461361214 · Headquarters: NEWPORT BEACH, CA, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-EZ

  84. Orange County Professional Firefighters Association Local 3631

    EIN 330672938 · Headquarters: TUSTIN, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  85. Orange County Psychiatric Society

    EIN 330099284 · Headquarters: NEWPORT BEACH, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  86. Orange County Psychological Association

    EIN 953404712 · Headquarters: Newport Beach, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  87. Orange County Public Facilities Corporation

    EIN 330062755 · Headquarters: Santa Ana, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  88. Orange County Quilters Guild

    EIN 953743598 · Headquarters: Anaheim, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  89. Orange County Realtors

    EIN 952873622 · Headquarters: Laguna Hills, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  90. Orange County Regional Chapter of the Community Associations Institute

    EIN 953326253 · Headquarters: Santa Ana, CA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  91. Orange County School Educators Asso California Teachers Association

    EIN 330251680 · Headquarters: ORANGE, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  92. Orange County Science and Engineering Fair Inc

    EIN 237335422 · Headquarters: Santa Ana, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  93. Orange County Self Help Center

    EIN 330254067 · Headquarters: Anaheim, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  94. Orange County Seniors Golf Association Co Jon Stanton

    EIN 952428038 · Headquarters: Manhattan Beach, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  95. Orange County Ski Club Inc

    EIN 237164434 · Headquarters: Fountain Valley, CA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  96. Orange County Society of Otolaryngology

    EIN 330411024 · Headquarters: Newport Beach, CA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  97. Orange County Softball Officials Association

    EIN 330479638 · Headquarters: HUNTINGTON BEACH, CA, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  98. Orange County South Chapter of Cce-ccl

    EIN 881513124 · Headquarters: San Juan Capistrano, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  99. Orange County Taxpayers Association

    EIN 943005786 · Headquarters: ORANGE, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  100. Orange County Theater Company

    EIN 731718136 · Headquarters: Tustin, CA, US · Unknown & Unclassified · Latest available filing year: 2012 · Primary form: IRS Form 990-N

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