Unknown & Unclassified nonprofits

Unknown & Unclassified nonprofits. Browse 557,756 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. San Bruno Dog Obedience School Inc

    EIN 943190083 · Headquarters: San Mateo, CA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  2. San Bruno Gators Basketball

    EIN 472687328 · Headquarters: SAN BRUNO, CA, US · Unknown & Unclassified · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  3. San Bruno Library Foundation

    EIN 680400583 · Headquarters: San Bruno, CA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  4. San Buenaventura Heritage Inc

    EIN 953310789 · Headquarters: Ventura, CA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  5. San Buenaventura Sister City Association

    EIN 871201617 · Headquarters: Ventura, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  6. San Carlos Airport Pilots Association

    EIN 262539170 · Headquarters: San Carlos, CA, US · Unknown & Unclassified · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  7. San Carlos Charter Learning Center Fundraising Association

    EIN 900120643 · Headquarters: San Carlos, CA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  8. San Carlos Foundation

    EIN 680040121 · Headquarters: Berkeley, CA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  9. San Carlos Little League Inc

    EIN 592680962 · Headquarters: ESTERO, FL, USA · Unknown & Unclassified · Latest available filing year: 2013 · Primary form: IRS Form 990-EZ

  10. San Carlos Masonic Temple Association

    EIN 946091568 · Headquarters: San Carlos, CA, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  11. San Carlos Service Clubs for Seniors

    EIN 943139838 · Headquarters: San Carlos, CA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  12. San Carlos Tennis Association Inc

    EIN 943157787 · Headquarters: Redwood City, CA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  13. San Carlos Youth Center Foundation

    EIN 943189169 · Headquarters: San Carlos, CA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  14. San Cayetano Mutual Water Company

    EIN 951184410 · Headquarters: Fillmore, CA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  15. San Chicago Corporation

    EIN 742502399 · Headquarters: ARMSTRONG, TX, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  16. San Clemente Aquatic Team Corporation

    EIN 330112862 · Headquarters: SAN CLEMENTE, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  17. San Clemente Area Republican Womens Federation

    EIN 953754078 · Headquarters: SAN CLEMENTE, CA, US · Unknown & Unclassified · Latest available filing year: 2010 · Primary form: IRS Form 990-N

  18. San Clemente Arts and Crafts Club

    EIN 956111713 · Headquarters: San Clemente, CA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  19. San Clemente Chamber of Commerce

    EIN 951451751 · Headquarters: SAN CLEMENTE, CA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  20. San Clemente City Employees Association

    EIN 330560355 · Headquarters: SAN CLEMENTE, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  21. San Clemente Friendship Center Inc

    EIN 953807722 · Headquarters: SAN CLEMENTE, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  22. San Clemente Little League

    EIN 330272337 · Headquarters: San Clemente, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  23. San Clemente Mens Golf Club

    EIN 953743590 · Headquarters: San Clemente, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  24. San Clemente Ocean Festival

    EIN 953637016 · Headquarters: SAN CLEMENTE, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  25. San Clemente Rotary Club

    EIN 956095693 · Headquarters: SAN CLEMENTE, CA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  26. San Clemente Scooter Club

    EIN 263404847 · Headquarters: San Clemente, CA, US · Unknown & Unclassified · Latest available filing year: 2010 · Primary form: IRS Form 990-N

  27. San Clemente Seniors Inc

    EIN 952981158 · Headquarters: SAN CLEMENTE, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  28. San Clemente Shorecliffs Beach Club Association

    EIN 952272026 · Headquarters: ALISO VIEJO, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  29. San Clemente Sunrise Rotary Club

    EIN 330516234 · Headquarters: SAN CLEMENTE, CA, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  30. San Clemente Surf Life Saving Association

    EIN 952482733 · Headquarters: San Clemente, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  31. San Clemente Vacation Rentals Alliance

    EIN 820872017 · Headquarters: Coto de Caza, CA, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  32. San Damiano College for the Trades

    EIN 991668678 · Headquarters: SPRINGFIELD, IL, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  33. San Damiano Inc

    EIN 752865849 · Headquarters: CROWLEY, TX, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  34. San Diegans 4 Spay Neuter Impact Pl an Inc

    EIN 412450528 · Headquarters: San Diego, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  35. San Diegans for Better Housing Now

    EIN 263749025 · Headquarters: La Jolla, CA, US · Unknown & Unclassified · Latest available filing year: 2008 · Primary form: IRS Form 990-N

  36. San Diegans for Full Voter Participation Sponsored by SEIU Local 221 PAC

    EIN 384055121 · Headquarters: Sacramento, CA, USA · Unknown & Unclassified · Latest available filing year: 2018 · Primary form: IRS Form 990

  37. San Diegans for Jobs and Sustainable Communities

    EIN 473279079 · Headquarters: LOS ANGELES, CA, US · Unknown & Unclassified · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  38. San Diegans for the Common Good

    EIN 831482040 · Headquarters: Sacramento, CA, USA · Unknown & Unclassified · Latest available filing year: 2018 · Primary form: IRS Form 990-EZ

  39. San Diegans for the Minimum Wage

    EIN 811220354 · Headquarters: Sacaramento, CA, USA · Unknown & Unclassified · Latest available filing year: 2016 · Primary form: IRS Form 990

  40. San Diego & IMP County School Admin Foundation

    EIN 330169658 · Headquarters: Chula Vista, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  41. San Diego Academy of Child and Adolescent Psychiatry

    EIN 800264095 · Headquarters: San Diego, CA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  42. San Diego Academy of Family Physicians

    EIN 946128841 · Headquarters: SAN DIEGO, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  43. San Diego Academy of Otolaryngology

    EIN 956141673 · Headquarters: Encinitas, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  44. San Diego Aerie 244

    EIN 950750530 · Headquarters: San Diego, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  45. San Diego African American Museum of Fine Arts

    EIN 464919537 · Headquarters: San Diego, CA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  46. San Diego Alumnae Assn of Alpha Delta Pi

    EIN 010955921 · Headquarters: San Diego, CA, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  47. San Diego Alumni Association of Triangle Fraternity

    EIN 932203349 · Headquarters: Hayward, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  48. San Diego and Imperial Counties Chapter of Cnma

    EIN 464839655 · Headquarters: Encinitas, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  49. San Diego and Imperial Counties Community College Foundation

    EIN 330104231 · Headquarters: El Cajon, CA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  50. San Diego and Imperial Counties Labor Council AFL-CIO

    EIN 800180809 · Headquarters: San Diego, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  51. San Diego Antique Bottle Club

    EIN 680623585 · Headquarters: La Mesa, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  52. San Diego Arabian Horse Association

    EIN 510180485 · Headquarters: RAMONA, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  53. San Diego Area Alumni Association of Sigma Alpha Epsilon

    EIN 463328170 · Headquarters: La Mesa, CA, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  54. San Diego Area Law Libraries

    EIN 330826917 · Headquarters: San Diego, CA, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  55. San Diego Area Local Retiree Chapter

    EIN 862415210 · Headquarters: San Diego, CA, US · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  56. San Diego Association of Health Underwriters

    EIN 900342321 · Headquarters: SAN DIEGO, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  57. San Diego Astronomy Association

    EIN 510183640 · Headquarters: SAN DIEGO, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  58. San Diego Badminton Club

    EIN 330252926 · Headquarters: San Diego, CA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  59. San Diego Ballet

    EIN 330461414 · Headquarters: San Diego, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  60. San Diego Bankruptcy Forum

    EIN 330354388 · Headquarters: SAN DIEGO, CA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  61. San Diego Bible Students

    EIN 953320055 · Headquarters: San Diego, CA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  62. San Diego Bird Breeders Inc

    EIN 205827454 · Headquarters: Vista, CA, US · Unknown & Unclassified · Latest available filing year: 2013 · Primary form: IRS Form 990-N

  63. San Diego Black Nurses Association

    EIN 953397384 · Headquarters: SAN DIEGO, CA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  64. San Diego Bldg Owners & Managers Assn

    EIN 330072052 · Headquarters: SAN DIEGO, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  65. San Diego Blood Bank

    EIN 951696732 · Headquarters: SAN DIEGO, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  66. San Diego Braille Club Inc

    EIN 953749751 · Headquarters: SAN DIEGO, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  67. San Diego Brain Injury Foundation

    EIN 330072774 · Headquarters: San Diego, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  68. San Diego Business Travel Association

    EIN 330235379 · Headquarters: SAN DIEGO, CA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  69. San Diego Catholic Worker Inc

    EIN 953859329 · Headquarters: SAN DIEGO, CA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  70. San Diego Center for the Blind

    EIN 953076944 · Headquarters: SAN DIEGO, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  71. San Diego Central-California Now Chapter

    EIN 202419901 · Headquarters: SAN DIEGO, CA, US · Unknown & Unclassified · Latest available filing year: 2007 · Primary form: IRS Form 990-N

  72. San Diego Chamber Music Workshop Dba Socal Chamber Music Workshop

    EIN 330265815 · Headquarters: TUSTIN, CA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  73. San Diego Chapter Abc Training Trust Fund

    EIN 330144680 · Headquarters: POWAY, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  74. San Diego Chapter Association of Legal Administrators

    EIN 330015653 · Headquarters: SAN DIEGO, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  75. San Diego Chapter International Conference of Building Officials

    EIN 330002455 · Headquarters: San Diego, CA, US · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  76. San Diego Chapter Japanese American Citizens League Inc

    EIN 956117694 · Headquarters: CARLSBAD, CA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  77. San Diego Chapter Military Officers Association of America

    EIN 237066872 · Headquarters: SAN DIEGO, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  78. San Diego Chapter of the American Needlepoint Guild

    EIN 330154654 · Headquarters: La Mesa, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  79. San Diego Chapter of the American Society of Landscape Architects

    EIN 953094531 · Headquarters: El Cajon, CA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  80. San Diego Chapter of the Appraisal Institute

    EIN 237420980 · Headquarters: CHICAGO, IL, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  81. San Diego Chapter of the California Association of Marriage and Family

    EIN 330111805 · Headquarters: San Diego, CA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  82. San Diego Chapter of the Narpm Inc

    EIN 800157263 · Headquarters: SAN DIEGO, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  83. San Diego Chapter of the North American Versatile Hunting Dog Ass

    EIN 271951690 · Headquarters: Cardiff, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  84. San Diego Chapter of The Risk and Insurance Management Society Inc

    EIN 330368953 · Headquarters: San Diego, CA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  85. San Diego Chapter of the Society of Industrial and Office Realtors

    EIN 330720368 · Headquarters: SAN DIEGO, CA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  86. San Diego Chapter of the Western Manufactured Housing Association

    EIN 593837068 · Headquarters: La Mesa, CA, US · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  87. San Diego Chapter the Links Inc

    EIN 956122400 · Headquarters: SAN DIEGO, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  88. San Diego Children's Choir

    EIN 330488298 · Headquarters: San Diego, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  89. San Diego Childrens Dental Health

    EIN 953159075 · Headquarters: San Diego, CA, US · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  90. San Diego Chinese Cultural Association

    EIN 330008140 · Headquarters: SAN DIEGO, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  91. San Diego Chinese Women's Association

    EIN 330063395 · Headquarters: SAN DIEGO, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  92. San Diego Christian Foundation Inc

    EIN 953128560 · Headquarters: SAN DIEGO, CA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  93. San Diego Christian Servicemens Center Inc

    EIN 953165614 · Headquarters: SAN DIEGO, CA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  94. San Diego Church of Christ

    EIN 330291554 · Headquarters: San Diego, CA, USA · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-T

  95. San Diego City College Foundation

    EIN 237261624 · Headquarters: San Diego, CA, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990

  96. San Diego City Help

    EIN 330299302 · Headquarters: San Diego, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  97. San Diego Civic Youth Ballet

    EIN 237079373 · Headquarters: SAN DIEGO, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  98. San Diego Coastal United Teachers

    EIN 330414171 · Headquarters: OCEANSIDE, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  99. San Diego Community College Auxiliary Organization

    EIN 330428972 · Headquarters: San Diego, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  100. San Diego Concert Band

    EIN 330499812 · Headquarters: SANTEE, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

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