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. Southern California Motorcycle Club

    EIN 954710760 · Headquarters: Newhall, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  2. Southern California Mufon Inc

    EIN 301490689 · Headquarters: San Pedro, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  3. Southern California Municipal Athletic Federation

    EIN 956047952 · Headquarters: S EL MONTE, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  4. Southern California Neurorestoration Foundation

    EIN 862036972 · Headquarters: Bakersfield, CA, US · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  5. Southern California Nisei Womens Golf Association

    EIN 330428979 · Headquarters: Villa Park, CA, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  6. Southern California Operating & Maintenance Engineers Appren & Tng Trust

    EIN 237061941 · Headquarters: WEST COVINA, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  7. Southern California Orchid Species Society

    EIN 800549041 · Headquarters: Placentia, CA, US · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  8. Southern California Orthopedic Research and Education Center

    EIN 953706499 · Headquarters: Van Nuys, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  9. Southern California Paddle Source

    EIN 412890263 · Headquarters: Van Nuys, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  10. Southern California Painters and Decorators Labor-mgmt Cooperation Committee Trust

    EIN 954492322 · Headquarters: MONTEREY PARK, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  11. Southern California Painting and Drywall Industries Health & Welfare Trust Fund

    EIN 951731374 · Headquarters: COVINA, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  12. Southern California Paleontological Society

    EIN 953867006 · Headquarters: Redondo Beach, CA, US · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  13. Southern California PDCA Trust Fund

    EIN 336123866 · Headquarters: Tustin, CA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  14. Southern California Peace Corps Service Council

    EIN 237401380 · Headquarters: Los Angeles, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  15. Southern California Peruvian Paso Horse Club

    EIN 237202091 · Headquarters: San Jacinto, CA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  16. Southern California Peruvian- American Medical Society Inc

    EIN 954030802 · Headquarters: Chatsworth, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  17. Southern California Pipe Trades Christmas Bonus Fund

    EIN 954349805 · Headquarters: LOS ANGELES, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  18. Southern California Planning Congress

    EIN 956095495 · Headquarters: Pasadena, CA, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  19. Southern California Plastering Institute Apprenticeship Trust

    EIN 952249118 · Headquarters: POMONA, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  20. Southern California Plastering Institute Group Benefit Trust Fund

    EIN 951917053 · Headquarters: PASADENA, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  21. Southern California Plastering Institute Work Preservation Labor-management

    EIN 954129169 · Headquarters: PASADENA, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  22. Southern California Promotional Committee Trust Fund

    EIN 526252909 · Headquarters: CITY OF INDUSTRY, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  23. Southern California Psychiatric Society

    EIN 952083669 · Headquarters: PALM DESERT, CA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  24. Southern California Pygmy Goat Association

    EIN 812332727 · Headquarters: La Mesa, CA, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  25. Southern California Quality Assurance Association

    EIN 954299357 · Headquarters: East Irvine, CA, US · Unknown & Unclassified · Latest available filing year: 2010 · Primary form: IRS Form 990-N

  26. Southern California Region II of The American College of Physicians

    EIN 330871787 · Headquarters: Redlands, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  27. Southern California Registry of Interpreters for the Deaf

    EIN 753164401 · Headquarters: West Covina, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  28. Southern California Rehabilitation Services Inc

    EIN 953411383 · Headquarters: PASADENA, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  29. Southern California Reined Cow Horse Association

    EIN 330950476 · Headquarters: TEMECULA, CA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  30. Southern California Renegades Travel Team Baseball Club

    EIN 453325315 · Headquarters: west covina, CA, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  31. Southern California Rental Housing Association

    EIN 950500288 · Headquarters: SAN DIEGO, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  32. Southern California Residential Drywall Contract Administration Committee Inc

    EIN 954404955 · Headquarters: ONTARIO, CA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  33. Southern California Romance Writers

    EIN 760237687 · Headquarters: Santee, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  34. Southern California Rotorcraft Association

    EIN 953992640 · Headquarters: Covina, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  35. Southern California Rowing Foundation

    EIN 237028974 · Headquarters: LONG BEACH, CA, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  36. Southern California Section Institute of Food Technologists

    EIN 952497712 · Headquarters: Orange, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  37. Southern California Security Association

    EIN 953702078 · Headquarters: Los Angeles, CA, US · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  38. Southern California Seminary

    EIN 952111210 · Headquarters: El Cajon, CA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  39. Southern California Service Corps Inc

    EIN 953276670 · Headquarters: POMONA, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  40. Southern California Sheet Metal Joint Apprenticeship and Training Committee

    EIN 951794849 · Headquarters: CITY OF INDUSTRY, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  41. Southern California Shop Foreman Association Incorporated

    EIN 264018485 · Headquarters: North Hollywood, CA, US · Unknown & Unclassified · Latest available filing year: 2011 · Primary form: IRS Form 990-N

  42. Southern California Shopping Center Association

    EIN 330282505 · Headquarters: SAN DIMAS, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  43. Southern California Skandia Festival

    EIN 330482596 · Headquarters: VENTURA, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  44. Southern California Soccer League Coast Soccer League

    EIN 813763231 · Headquarters: LA MIRADA, CA, USA · Unknown & Unclassified · Latest available filing year: 2018 · Primary form: IRS Form 990-EZ

  45. Southern California Society for Child Psychiatry

    EIN 237428357 · Headquarters: PALM DESERT, CA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  46. Southern California Society of Gastroenterology

    EIN 954564175 · Headquarters: BREA, CA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  47. Southern California Speedboat Club

    EIN 956073972 · Headquarters: REDONDO BEACH, CA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  48. Southern California Squash Racquets Association

    EIN 824196814 · Headquarters: Santa Monica, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  49. Southern California Surveyors Joint Apprenticeship Trust

    EIN 952241440 · Headquarters: Rancho Cucamonga, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  50. Southern California Tax Revolt Coalition Inc

    EIN 274805815 · Headquarters: San Diego, CA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  51. Southern California Teo-chew Association

    EIN 953641200 · Headquarters: Los Angeles, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  52. Southern California Tile Marble & Terrazzo Compliance Trust

    EIN 956996137 · Headquarters: LA VERNE, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  53. Southern California Tracon Child Center Inc

    EIN 330552157 · Headquarters: SAN DIEGO, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  54. Southern California Trainers Network

    EIN 954871767 · Headquarters: Pasadena, CA, US · Unknown & Unclassified · Latest available filing year: 2012 · Primary form: IRS Form 990-N

  55. Southern California Trampoline Academy

    EIN 330282071 · Headquarters: Mission Viejo, CA, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  56. Southern California Transplantation Institute Research Foundation

    EIN 330791935 · Headquarters: Coronado, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  57. Southern California Trials Assoc

    EIN 900488223 · Headquarters: Oak Park, CA, US · Unknown & Unclassified · Latest available filing year: 2014 · Primary form: IRS Form 990-N

  58. Southern California Tribal Chairmen's Association

    EIN 237161267 · Headquarters: Valley Center, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  59. Southern California Tuna Club

    EIN 956533870 · Headquarters: LONG BEACH, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  60. Southern California Unified Bid for Icypaa

    EIN 990653080 · Headquarters: San Pedro, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  61. Southern California Users of Magnets

    EIN 873261230 · Headquarters: Los Angeles, CA, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  62. Southern California Veterinary Medical Association

    EIN 951855133 · Headquarters: CYPRESS, CA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  63. Southern California Viola Society - a Chapter of Avs

    EIN 273688343 · Headquarters: Burbank, CA, US · Unknown & Unclassified · Latest available filing year: 2010 · Primary form: IRS Form 990-N

  64. Southern California Viper Club

    EIN 954744061 · Headquarters: Newhall, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  65. Southern California Volleyball Association

    EIN 953450010 · Headquarters: IRVINE, CA, USA · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990

  66. Southern California Waste Management Forum

    EIN 956282870 · Headquarters: YORBA LINDA, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  67. Southern California World Services of AFG INC

    EIN 237449669 · Headquarters: Sun City, CA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  68. Southern California Yachting Association

    EIN 237106715 · Headquarters: SEAL BEACH, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  69. Southern California Yee Family

    EIN 952691604 · Headquarters: LOS ANGELES, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  70. Southern California Youth Bull Riders

    EIN 824328165 · Headquarters: Valley Center, CA, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  71. Southern Californians for Wired Solution for Smart Meters

    EIN 463357122 · Headquarters: APPLE VALLEY, CA, US · Unknown & Unclassified · Latest available filing year: 2015 · Primary form: IRS Form 990-N

  72. Southern Counties Dairy Herd Improvement Association

    EIN 952859256 · Headquarters: SHAFTER, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  73. Southern Dance Instructors

    EIN 364776223 · Headquarters: San Luis Obispo, CA, US · Unknown & Unclassified · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  74. Southern Eeg Society Inc

    EIN 620961532 · Headquarters: San Francisco, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  75. Southern High Sierra Corvettes

    EIN 800879683 · Headquarters: Oakhurst, CA, US · Unknown & Unclassified · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  76. Southern Humboldt Community Park

    EIN 753073362 · Headquarters: Garberville, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  77. Southern Lassen County Senior Club

    EIN 680075705 · Headquarters: Doyle, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  78. Southern Marin Youth Football Inc

    EIN 680032605 · Headquarters: Mill Valley, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  79. Southern Mono Historical Society Inc

    EIN 770053500 · Headquarters: MAMMOTH LAKES, CA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  80. Southern Monterey County Memorial Hospital Foundation

    EIN 770357968 · Headquarters: KING CITY, CA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  81. Southern Nevada Operating Engineers Contract Compliance Trust

    EIN 880269875 · Headquarters: Pasadena, CA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  82. Southern Nevada Operating Engineers Journeyman & Apprentice Training Trust

    EIN 880094927 · Headquarters: Pasadena, CA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  83. Southern Orange County Alumnae Panhellenic

    EIN 831962233 · Headquarters: Laguna Niguel, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  84. Southern Pacific AAU Sports Amateur Athletic Union of the United Sta

    EIN 562532764 · Headquarters: Temecula, CA, USA · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990

  85. Southern Peninsula Emergency Communications System Users Group

    EIN 770214189 · Headquarters: Los Altos, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  86. Southern Sierra Amateur Radio Society

    EIN 542165876 · Headquarters: Tehachapi, CA, US · Unknown & Unclassified · Latest available filing year: 2011 · Primary form: IRS Form 990-N

  87. Southern Sierra Climbers Association

    EIN 261485650 · Headquarters: Exeter, CA, US · Unknown & Unclassified · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  88. Southern Sierra Council Boy Scouts of America

    EIN 951642363 · Headquarters: BAKERSFIELD, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  89. Southern Sierras Chapter National Electrical Contractors Associates Inc

    EIN 952265383 · Headquarters: SAN BERNARDINO, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  90. Southern Skis

    EIN 954522056 · Headquarters: Pacific Palisades, CA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  91. Southern Trinity Area Rescue Inc

    EIN 331810165 · Headquarters: MAD RIVER, CA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  92. Southern Tuolumne County Historical Society

    EIN 770132781 · Headquarters: BIG OAK FLAT, CA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  93. Southern Yosemite Visitors Bureau

    EIN 770394433 · Headquarters: Oakhurst, CA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  94. Southgate Elementary PTA

    EIN 946174506 · Headquarters: Hayward, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  95. Southgate Youth Football Inc

    EIN 954321732 · Headquarters: SOUTH GATE, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  96. Southlake Mobile Home Owners Association

    EIN 900878498 · Headquarters: Fremont, CA, US · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  97. Southland Credit Union

    EIN 951585409 · Headquarters: Whittier, CA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  98. Southland Economic Development Corporation

    EIN 953560326 · Headquarters: SANTA ANA, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  99. Southland Farmers Market Association

    EIN 953830216 · Headquarters: SANTA BARBARA, CA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  100. Southland Integrated Services Inc

    EIN 953403526 · Headquarters: Garden Grove, CA, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990

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