Mutual & Membership Benefit nonprofits in California

Mutual & Membership Benefit nonprofits in California. Browse 2,396 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 Branch 2608

    EIN 946174053 · Headquarters: Susanville, CA, US · Mutual & Membership Benefit · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  2. National Association of Naval Employees Welfare Benefit Plan

    EIN 680445330 · Headquarters: SACRAMENTO, CA, USA · Mutual & Membership Benefit · Latest available filing year: 2019 · Primary form: IRS Form 990-EZ

  3. National Association of Royalty Owners - California Inc

    EIN 463240506 · Headquarters: Bakersfield, CA, USA · Mutual & Membership Benefit · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  4. National Charity League Inc South Bay Chapter

    EIN 472125154 · Headquarters: MANHATTAN BEACH, CA, USA · Mutual & Membership Benefit · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  5. National Cheng Chi University Alumni Associates

    EIN 770524692 · Headquarters: Cupertino, CA, US · Mutual & Membership Benefit · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  6. National Ives Royal Order of Jesterettes

    EIN 521654313 · Headquarters: Santa Monica, CA, US · Mutual & Membership Benefit · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  7. National Kaba

    EIN 392298197 · Headquarters: Irvine, CA, US · Mutual & Membership Benefit · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  8. National Members Redding California Inc

    EIN 271643218 · Headquarters: Redding, CA, US · Mutual & Membership Benefit · Latest available filing year: 2014 · Primary form: IRS Form 990-N

  9. National Private Educators and Affiliates Assoc Health & Welfare Trust

    EIN 467375970 · Headquarters: Mission Viejo, CA, USA · Mutual & Membership Benefit · Latest available filing year: 2022 · Primary form: IRS Form 990

  10. National Society of Entertainment and Lawyers

    EIN 812830613 · Headquarters: BEVERLY HILLS, CA, USA · Mutual & Membership Benefit · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  11. National Taiwan Normal University Alumni Association of Northern Cal

    EIN 770545518 · Headquarters: FREMONT, CA, US · Mutual & Membership Benefit · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  12. Native Daughters of the Golden West Grand Parlor

    EIN 943248410 · Headquarters: Crescent City, CA, US · Mutual & Membership Benefit · Latest available filing year: 2007 · Primary form: IRS Form 990-N

  13. Navy Yard Association of Mare Island

    EIN 941209543 · Headquarters: VALLEJO, CA, US · Mutual & Membership Benefit · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  14. Ncavad Inc

    EIN 475021842 · Headquarters: SAN JOSE, CA, USA · Mutual & Membership Benefit · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  15. Neca West Payroll Guarantee Trust Fund

    EIN 680254582 · Headquarters: SAN JOSE, CA, USA · Mutual & Membership Benefit · Latest available filing year: 2010 · Primary form: IRS Form 990

  16. Neca-ibew Drug-free Workforce Trust

    EIN 260086997 · Headquarters: SAN DIEGO, CA, USA · Mutual & Membership Benefit · Latest available filing year: 2023 · Primary form: IRS Form 990

  17. Neff Subdivision Mutual Water Company

    EIN 201041512 · Headquarters: Woodlake, CA, US · Mutual & Membership Benefit · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  18. Negrense Volunteers for Change Inc Foundation - USA

    EIN 464203608 · Headquarters: BELMONT, CA, USA · Mutual & Membership Benefit · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  19. Nenkin Support Center of America

    EIN 852750711 · Headquarters: POWAY, CA, US · Mutual & Membership Benefit · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  20. Ner Tamid Jewish Cemetery Association

    EIN 201775676 · Headquarters: OAKVILLE, CA, USA · Mutual & Membership Benefit · Latest available filing year: 2017 · Primary form: IRS Form 990-PF

  21. Newmark Wholesale Mart Association

    EIN 272179849 · Headquarters: LOS ANGELES, CA, USA · Mutual & Membership Benefit · Latest available filing year: 2025 · Primary form: IRS Form 990

  22. Newport Mastermind Collective

    EIN 922873565 · Headquarters: Newport Beach, CA, US · Mutual & Membership Benefit · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  23. Nichols Canyon Neighborhood Association

    EIN 831998693 · Headquarters: West Hollywood, CA, US · Mutual & Membership Benefit · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  24. Nonprofit Benefits Trust Dba California Assoc of Nonprofits Dental & Vision Plan

    EIN 306560313 · Headquarters: CAPITOLA, CA, USA · Mutual & Membership Benefit · Latest available filing year: 2024 · Primary form: IRS Form 990

  25. Nonprofits Insurance Alliance

    EIN 770203935 · Headquarters: Santa Cruz, CA, US · Mutual & Membership Benefit · Latest available filing year: 2024 · Primary form: IRS Form 990

  26. NonProfits United

    EIN 680590352 · Headquarters: Sacramento, CA, US · Mutual & Membership Benefit · Latest available filing year: 2025 · Primary form: IRS Form 990

  27. Nor Cal Road Knights Inc

    EIN 680168008 · Headquarters: Redding, CA, US · Mutual & Membership Benefit · Latest available filing year: 2013 · Primary form: IRS Form 990-N

  28. Nordahl Hall

    EIN 237260006 · Headquarters: Los Gatos, CA, US · Mutual & Membership Benefit · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  29. Norris Canyon Property Owners Association

    EIN 946122010 · Headquarters: CASTRO VALLEY, CA, USA · Mutual & Membership Benefit · Latest available filing year: 2016 · Primary form: IRS Form 990-EZ

  30. Norstar Commanders of the Rite

    EIN 365003238 · Headquarters: Murrieta, CA, US · Mutual & Membership Benefit · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  31. North American Chaoshan Doctoral Association

    EIN 820808589 · Headquarters: SAN RAMON, CA, USA · Mutual & Membership Benefit · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  32. North American Collection Agency Regulatory Association

    EIN 812263950 · Headquarters: San Diego, CA, USA · Mutual & Membership Benefit · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  33. North Bay Bash

    EIN 922601595 · Headquarters: Santa Rosa, CA, US · Mutual & Membership Benefit · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  34. North CA Mason Contractors Association BeneSys Desiree Eaton

    EIN 943035294 · Headquarters: Pleasanton, CA, USA · Mutual & Membership Benefit · Latest available filing year: 2025 · Primary form: IRS Form 990

  35. North County Dispatch Jpa Veba Trust

    EIN 852914095 · Headquarters: RANCHO SANTA FE, CA, USA · Mutual & Membership Benefit · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  36. North Kranenburg Water System Mutual Water Company

    EIN 464352627 · Headquarters: Bakersfield, CA, US · Mutual & Membership Benefit · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  37. North Muroc Mutual Water Company

    EIN 820839124 · Headquarters: North Edwards, CA, USA · Mutual & Membership Benefit · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  38. North Natomas Knights

    EIN 262756039 · Headquarters: Sacramento, CA, US · Mutual & Membership Benefit · Latest available filing year: 2011 · Primary form: IRS Form 990-N

  39. North Star Lodge No 91 Masonic Hall Association

    EIN 942435187 · Headquarters: Fort Jones, CA, US · Mutual & Membership Benefit · Latest available filing year: 2008 · Primary form: IRS Form 990-N

  40. North Wawona Park Mutual Water Company

    EIN 941612608 · Headquarters: Wawona, CA, US · Mutual & Membership Benefit · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  41. Northbay Business Connections

    EIN 880668254 · Headquarters: NOVATO, CA, US · Mutual & Membership Benefit · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  42. Northern California 7-11 Owners Association Inc

    EIN 680006281 · Headquarters: SHERIDAN, CA, USA · Mutual & Membership Benefit · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  43. Northern California Bakery Wagon Drivers Negotiating Committee

    EIN 364584216 · Headquarters: Oakland, CA, USA · Mutual & Membership Benefit · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  44. Northern California Chapter of Nigp

    EIN 874838376 · Headquarters: AUBURN, CA, US · Mutual & Membership Benefit · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  45. Northern California Publishers and Authors

    EIN 880994402 · Headquarters: Sacramento, CA, US · Mutual & Membership Benefit · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  46. Northern California Registry Of

    EIN 942476570 · Headquarters: San Francisco, CA, USA · Mutual & Membership Benefit · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  47. Northern California Tile Industry Vacation and Holiday Trust Fund

    EIN 800560254 · Headquarters: Pleasanton, CA, USA · Mutual & Membership Benefit · Latest available filing year: 2024 · Primary form: IRS Form 990

  48. Northern Nevada Operating Engineers Vacation and Holiday Pay Plan

    EIN 946169593 · Headquarters: ALAMEDA, CA, USA · Mutual & Membership Benefit · Latest available filing year: 2017 · Primary form: IRS Form 990-EZ

  49. Norway Day Inc

    EIN 943237629 · Headquarters: SAN FRANCISCO, CA, USA · Mutual & Membership Benefit · Latest available filing year: 2011 · Primary form: IRS Form 990-EZ

  50. Nrlca Ca Auxiliary

    EIN 942592898 · Headquarters: Elk Grove, CA, US · Mutual & Membership Benefit · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  51. Nursing Network on Violence Against Women International

    EIN 680414799 · Headquarters: Modesto, CA, US · Mutual & Membership Benefit · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  52. Nuview Knights Athletics Booster Club

    EIN 204368319 · Headquarters: Nuevo, CA, US · Mutual & Membership Benefit · Latest available filing year: 2017 · Primary form: IRS Form 990-N

  53. Oak Glen Mutual Water Company

    EIN 463372193 · Headquarters: Nipoma, CA, US · Mutual & Membership Benefit · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  54. Oak Manor Water Company

    EIN 942802543 · Headquarters: PRUNEDALE, CA, USA · Mutual & Membership Benefit · Latest available filing year: 2024 · Primary form: IRS Form 990

  55. Oak Trail Estates Mutual Water Company

    EIN 770412328 · Headquarters: SOLVANG, CA, USA · Mutual & Membership Benefit · Latest available filing year: 2025 · Primary form: IRS Form 990

  56. Oakland Firefighters Retiree Subsidy Plan

    EIN 863179959 · Headquarters: DUBLIN, CA, USA · Mutual & Membership Benefit · Latest available filing year: 2024 · Primary form: IRS Form 990

  57. Oakland High Twelve Club

    EIN 364962177 · Headquarters: OAKLAND, CA, US · Mutual & Membership Benefit · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  58. Oasis Veterans Club

    EIN 900643603 · Headquarters: Menifee, CA, US · Mutual & Membership Benefit · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  59. Obando - Los Angeles Chapter

    EIN 333106234 · Headquarters: ROSEMEAD, CA, US · Mutual & Membership Benefit · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  60. Obosi Development Association

    EIN 020641629 · Headquarters: Moreno Valley, CA, US · Mutual & Membership Benefit · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  61. Ocotillo Mutual Water Company

    EIN 952380929 · Headquarters: OCOTILLO, CA, USA · Mutual & Membership Benefit · Latest available filing year: 2022 · Primary form: IRS Form 990

  62. Ocu Health and Welfare Trust

    EIN 261574455 · Headquarters: COVINA, CA, USA · Mutual & Membership Benefit · Latest available filing year: 2024 · Primary form: IRS Form 990

  63. Olivenhain Municipal Water District Medical Savings Veba Trust

    EIN 473034049 · Headquarters: ENCINITAS, CA, USA · Mutual & Membership Benefit · Latest available filing year: 2025 · Primary form: IRS Form 990

  64. Olivet Masonic Temple Association

    EIN 946102900 · Headquarters: Corning, CA, USA · Mutual & Membership Benefit · Latest available filing year: 2019 · Primary form: IRS Form 990

  65. Olympic Valley Public Service District Trust

    EIN 301287849 · Headquarters: Olympic Valley, CA, USA · Mutual & Membership Benefit · Latest available filing year: 2024 · Primary form: IRS Form 990

  66. Omicron Kappa Upsilon-honorary Dental Society

    EIN 956133461 · Headquarters: Los Angeles, CA, US · Mutual & Membership Benefit · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  67. Ontario Fire Fighters Local 1430 Retiree Healthcare Savings Trust

    EIN 810696905 · Headquarters: ONTARIO, CA, USA · Mutual & Membership Benefit · Latest available filing year: 2025 · Primary form: IRS Form 990

  68. Ontario Lodge No 345 of the Independent Order of Odd Fellows

    EIN 237594359 · Headquarters: Ontario, CA, USA · Mutual & Membership Benefit · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  69. Open Source Collective

    EIN 822037583 · Headquarters: COVINA, CA, USA · Mutual & Membership Benefit · Latest available filing year: 2024 · Primary form: IRS Form 990

  70. Operating Engineers Local Union No 3 Vacation and Holiday Pay Plan

    EIN 946169594 · Headquarters: ALAMEDA, CA, USA · Mutual & Membership Benefit · Latest available filing year: 2018 · Primary form: IRS Form 990-EZ

  71. Operating Engineers Local Union No 3 Vacation Holiday and Sick Pay Trust Fund

    EIN 816631261 · Headquarters: ALAMEDA, CA, USA · Mutual & Membership Benefit · Latest available filing year: 2024 · Primary form: IRS Form 990

  72. Operating Engineers Public and Misc Employees Health and Welfare Trust Fund

    EIN 942567865 · Headquarters: Alameda, CA, USA · Mutual & Membership Benefit · Latest available filing year: 2024 · Primary form: IRS Form 990

  73. Optimist Club Of Arroyo Grande

    EIN 237455475 · Headquarters: Arroyo Grande, CA, USA · Mutual & Membership Benefit · Latest available filing year: 2023 · Primary form: IRS Form 990-EZ

  74. Orange County Employees Association Health and Welfare Trust

    EIN 330660405 · Headquarters: SANTA ANA, CA, USA · Mutual & Membership Benefit · Latest available filing year: 2024 · Primary form: IRS Form 990

  75. Orange County Professional Firefighters Association Group Benefit Plan

    EIN 336216448 · Headquarters: TUSTIN, CA, USA · Mutual & Membership Benefit · Latest available filing year: 2024 · Primary form: IRS Form 990

  76. Orange County Training Managers Association Corp

    EIN 872021164 · Headquarters: Orange, CA, US · Mutual & Membership Benefit · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  77. Orange Glen High School Football Booster Club

    EIN 812112629 · Headquarters: Escondido, CA, US · Mutual & Membership Benefit · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  78. Orange Valley Lodge 13

    EIN 237517573 · Headquarters: Riverside, CA, US · Mutual & Membership Benefit · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  79. Order of Ahepa

    EIN 237566123 · Headquarters: Daly City, CA, US · Mutual & Membership Benefit · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  80. Order of Ahepa

    EIN 264797882 · Headquarters: Sacramento, CA, US · Mutual & Membership Benefit · Latest available filing year: 2016 · Primary form: IRS Form 990-N

  81. Order of Ahepa

    EIN 470852489 · Headquarters: San Francisco, CA, US · Mutual & Membership Benefit · Latest available filing year: 2007 · Primary form: IRS Form 990-N

  82. Order of Ahepa Oakland Chapter 171

    EIN 941638199 · Headquarters: SAN FRANCISCO, CA, US · Mutual & Membership Benefit · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  83. Order of Alhambra 218 Ben Ziri Caravan

    EIN 953141672 · Headquarters: FALLBROOK, CA, US · Mutual & Membership Benefit · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  84. Order of Amaranth Inc

    EIN 680443103 · Headquarters: Citrus Heights, CA, US · Mutual & Membership Benefit · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  85. Order of Calanthe

    EIN 330026205 · Headquarters: RIVERSIDE, CA, US · Mutual & Membership Benefit · Latest available filing year: 2015 · Primary form: IRS Form 990-N

  86. Order of Calanthe

    EIN 912020041 · Headquarters: OAKLAND, CA, US · Mutual & Membership Benefit · Latest available filing year: 2010 · Primary form: IRS Form 990-N

  87. Order of Runeberg

    EIN 237548168 · Headquarters: Sonoma, CA, US · Mutual & Membership Benefit · Latest available filing year: 2012 · Primary form: IRS Form 990-N

  88. Order of Runeberg

    EIN 237548184 · Headquarters: Crescent City, CA, US · Mutual & Membership Benefit · Latest available filing year: 2007 · Primary form: IRS Form 990-N

  89. Order of Saint John Vianney

    EIN 264304214 · Headquarters: Penn Valley, CA, US · Mutual & Membership Benefit · Latest available filing year: 2014 · Primary form: IRS Form 990-N

  90. Order of Saint Pius V

    EIN 463880191 · Headquarters: ESCALON, CA, USA · Mutual & Membership Benefit · Latest available filing year: 2015 · Primary form: IRS Form 990

  91. Order of Sons of Italy in America Lake County Lodge No 2537 Inc

    EIN 942899904 · Headquarters: Hidden Valley Lake, CA, US · Mutual & Membership Benefit · Latest available filing year: 2017 · Primary form: IRS Form 990-N

  92. Order of St Martin Inc

    EIN 263047583 · Headquarters: Irvine, CA, US · Mutual & Membership Benefit · Latest available filing year: 2010 · Primary form: IRS Form 990-N

  93. Order of the Alhambra

    EIN 237505639 · Headquarters: BURBANK, CA, US · Mutual & Membership Benefit · Latest available filing year: 2013 · Primary form: IRS Form 990-N

  94. Order of the Alhambra

    EIN 237505702 · Headquarters: Anaheim, CA, US · Mutual & Membership Benefit · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  95. Order of the Alhambra

    EIN 912117673 · Headquarters: Escondido, CA, US · Mutual & Membership Benefit · Latest available filing year: 2010 · Primary form: IRS Form 990-N

  96. Order of the Alhambra

    EIN 953982128 · Headquarters: Azusa, CA, US · Mutual & Membership Benefit · Latest available filing year: 2008 · Primary form: IRS Form 990-N

  97. Order of the Amaranth Inc

    EIN 237614745 · Headquarters: So San Fransisco, CA, US · Mutual & Membership Benefit · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  98. Order of the Amaranth Inc Supreme Council

    EIN 237614020 · Headquarters: Fallbrook, CA, US · Mutual & Membership Benefit · Latest available filing year: 2008 · Primary form: IRS Form 990-N

  99. Order of the Eastern Star of Calif Prince Hall Rite of Adoption

    EIN 237590495 · Headquarters: BLYTHE, CA, US · Mutual & Membership Benefit · Latest available filing year: 2011 · Primary form: IRS Form 990-N

  100. Order of the Eastern Star of Calif Prince Hall Rite of Adoption

    EIN 237590496 · Headquarters: SAN LEANDRO, CA, US · Mutual & Membership Benefit · Latest available filing year: 2011 · Primary form: IRS Form 990-N

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