Nonprofits in Windsor, California

Nonprofits in Windsor, California. Browse 138 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. 1287816 Airport Toastmasters

    EIN 900461720 · Headquarters: Windsor, CA, US · Public & Societal Benefit · Latest available filing year: 2012 · Primary form: IRS Form 990-N

  2. Amateur Athletic Union of the United States Inc

    EIN 464831795 · Headquarters: WINDSOR, CA, US · Recreation & Sports · Latest available filing year: 2014 · Primary form: IRS Form 990-N

  3. Amateur Athletic Unions of the Us Prolific Prep

    EIN 463597471 · Headquarters: WINDSOR, CA, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990

  4. Bamboo Bell

    EIN 810573037 · Headquarters: WINDSOR, CA, US · Arts, Culture & Humanities · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  5. Bleser Family Foundation Inc

    EIN 391585269 · Headquarters: WINDSOR, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  6. Boomerang Plus

    EIN 464189048 · Headquarters: Windsor, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  7. California Garden Clubs Inc

    EIN 270518196 · Headquarters: Windsor, CA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  8. Chosen Little Ones

    EIN 873668766 · Headquarters: Windsor, CA, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  9. Circuit Rider Community Services

    EIN 942345807 · Headquarters: WINDSOR, CA, USA · Employment · Latest available filing year: 2024 · Primary form: IRS Form 990

  10. Citizens for Windsor Association

    EIN 822094801 · Headquarters: Windsor, CA, US · Community Improvement & Capacity Building · Latest available filing year: 2017 · Primary form: IRS Form 990-N

  11. Clara Edith Vose Foundation

    EIN 956125526 · Headquarters: WINDSOR, CA, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2017 · Primary form: IRS Form 990-PF

  12. Cody Cares

    EIN 474111010 · Headquarters: Windsor, CA, US · Youth Development · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  13. Communication Schools Taxpayers Academics Results

    EIN 161715163 · Headquarters: Windsor, CA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  14. Creating Wellness Social Therapy Canine Program Inc

    EIN 473308237 · Headquarters: WINDSOR, CA, USA · Human Services · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  15. Dear Ole Dads Safe Monastery Inc

    EIN 463821149 · Headquarters: WINDSOR, CA, USA · Human Services · Latest available filing year: 2022 · Primary form: IRS Form 990-EZ

  16. Dengue Relief Foundation

    EIN 010834768 · Headquarters: Windsor, CA, US · International, Foreign Affairs & National Security · Latest available filing year: 2013 · Primary form: IRS Form 990-N

  17. Diabetes Plus

    EIN 882565966 · Headquarters: Windsor, CA, US · Education · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  18. Emf Safety Network

    EIN 994652457 · Headquarters: Windsor, CA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  19. End of Endo Project Inc

    EIN 821218312 · Headquarters: Windsor, CA, US · Human Services · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  20. Express Basketball

    EIN 994652195 · Headquarters: WINDSOR, CA, USA · Recreation & Sports · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  21. Family Winemakers of California

    EIN 943112959 · Headquarters: WINDSOR, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  22. Free & Accepted Masons of California Windsor 181

    EIN 942190410 · Headquarters: Windsor, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  23. French Family Foundation

    EIN 943294460 · Headquarters: WINDSOR, CA, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2014 · Primary form: IRS Form 990-PF

  24. Friends of Henry 1

    EIN 800784449 · Headquarters: Windsor, CA, US · Public Safety, Disaster Preparedness & Relief · Latest available filing year: 2016 · Primary form: IRS Form 990-N

  25. Friends of Windsor Library

    EIN 680374719 · Headquarters: Windsor, CA, US · Education · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  26. G&cs Advocacy and Rescue Corporation

    EIN 993772320 · Headquarters: windsor, CA, US · Animal Related · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  27. Gallaher Community Housing Inc

    EIN 922642291 · Headquarters: WINDSOR, CA, US · Housing & Shelter · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  28. Garrett Hardware Scholarship Fund Co Carole A Mascherini

    EIN 680402007 · Headquarters: Windsor, CA, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  29. Giving4life

    EIN 393567620 · Headquarters: Windsor, CA, US · Public & Societal Benefit · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  30. Greaney Family Charitable Foundation

    EIN 611632667 · Headquarters: WINDSOR, CA, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  31. Handicapables of Santa Rosa

    EIN 205562740 · Headquarters: Windsor, CA, US · Human Services · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  32. Healdsburg Freight Depot Museum Society

    EIN 475529052 · Headquarters: Windsor, CA, US · Arts, Culture & Humanities · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  33. Hearts for Veterans Inc

    EIN 823177298 · Headquarters: WINDSOR, CA, US · Human Services · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  34. Holiday Rambler Recreational

    EIN 753025950 · Headquarters: WINDSOR, CA, US · Recreation & Sports · Latest available filing year: 2013 · Primary form: IRS Form 990-N

  35. Holiday Rambler Recreational Vehicle Club Inc

    EIN 412085980 · Headquarters: Windsor, CA, US · Recreation & Sports · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  36. Hop Quality Group Inc

    EIN 274271583 · Headquarters: WINDSOR, CA, USA · Community Improvement & Capacity Building · Latest available filing year: 2024 · Primary form: IRS Form 990

  37. Hope Works Santa Rosa

    EIN 205809407 · Headquarters: WINDSOR, CA, US · Religion Related · Latest available filing year: 2011 · Primary form: IRS Form 990-N

  38. Inclusion Revolution Inc A California Nonprofit Corporation

    EIN 810938138 · Headquarters: Windsor, CA, USA · Human Services · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  39. Independent Order of Odd Fellows

    EIN 940575394 · Headquarters: WINDSOR, CA, US · Mutual & Membership Benefit · Latest available filing year: 2011 · Primary form: IRS Form 990-N

  40. International Association of Fire Fighters

    EIN 364518762 · Headquarters: Windsor, CA, US · Public Safety, Disaster Preparedness & Relief · Latest available filing year: 2016 · Primary form: IRS Form 990-N

  41. Jnr Family Foundation

    EIN 810766506 · Headquarters: WINDSOR, CA, USA · Education · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  42. Julie Nation Academy Scholarship Foundation

    EIN 471011010 · Headquarters: WINDSOR, CA, US · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  43. Kiwanis International Inc

    EIN 680270664 · Headquarters: Windsor, CA, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  44. Latino Peace Officers Association- Sonoma County

    EIN 680263254 · Headquarters: Windsor, CA, US · Crime & Legal Related · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  45. Legal Secretaries Incorporated

    EIN 680096438 · Headquarters: WINDSOR, CA, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  46. Long Ears Institute

    EIN 452128599 · Headquarters: WINDSOR, CA, US · Animal Related · Latest available filing year: 2013 · Primary form: IRS Form 990-N

  47. Marley Stainer Foundation Inc

    EIN 883196965 · Headquarters: Windsor, CA, US · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  48. Math4everyone

    EIN 372102271 · Headquarters: Windsor, CA, US · Education · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  49. Men R Pigs Charity Golf

    EIN 760740143 · Headquarters: WINDSOR, CA, USA · Recreation & Sports · Latest available filing year: 2013 · Primary form: IRS Form 990

  50. Meritage Alliance

    EIN 264510017 · Headquarters: Windsor, CA, US · Community Improvement & Capacity Building · Latest available filing year: 2010 · Primary form: IRS Form 990-N

  51. Middle School Sports League

    EIN 010720511 · Headquarters: windsor, CA, US · Recreation & Sports · Latest available filing year: 2012 · Primary form: IRS Form 990-N

  52. Mozarts Amazing Musicians

    EIN 364504127 · Headquarters: Windsor, CA, US · Arts, Culture & Humanities · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  53. Napa Valley Dixieland Jazz Society

    EIN 680185667 · Headquarters: Windsor, CA, US · Education · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  54. National Association of Insurance Women

    EIN 813366053 · Headquarters: Windsor, CA, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  55. North Coast Youth Golf Association Dba First Tee North Coast

    EIN 824011426 · Headquarters: WINDSOR, CA, USA · Youth Development · Latest available filing year: 2025 · Primary form: IRS Form 990

  56. Northern California Working Group Association Inc

    EIN 542130397 · Headquarters: WINDSOR, CA, US · Community Improvement & Capacity Building · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  57. Norwich Terrier Club of Northern California

    EIN 270195299 · Headquarters: Windsor, CA, US · Recreation & Sports · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  58. Nuestra Comunidad

    EIN 830609417 · Headquarters: Windsor, CA, USA · Public Safety, Disaster Preparedness & Relief · Latest available filing year: 2025 · Primary form: IRS Form 990

  59. Oakmont Family Fund

    EIN 472165512 · Headquarters: WINDSOR, CA, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2020 · Primary form: IRS Form 990-PF

  60. Odd Fellows Hall Association of Windsor Inc

    EIN 900662229 · Headquarters: Windsor, CA, US · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  61. Old Downtown Windsor Business Improvement District

    EIN 201476259 · Headquarters: Windsor, CA, US · Community Improvement & Capacity Building · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  62. Open Employment

    EIN 813199944 · Headquarters: Windsor, CA, USA · Employment · Latest available filing year: 2025 · Primary form: IRS Form 990

  63. Operation Christmas Tree Inc

    EIN 854273692 · Headquarters: WINDSOR, CA, USA · Human Services · Latest available filing year: 2022 · Primary form: IRS Form 990

  64. Our Community Matters

    EIN 881802679 · Headquarters: WINDSOR, CA, US · Public Safety, Disaster Preparedness & Relief · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  65. Pacific Malinois Club

    EIN 813121310 · Headquarters: Windsor, CA, US · Animal Related · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  66. Packages for Preemies

    EIN 813434549 · Headquarters: Windsor, CA, US · Diseases, Disorders & Medical Disciplines · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  67. Pediatric Dental Initiative of the North Coast Inc

    EIN 342012430 · Headquarters: WINDSOR, CA, USA · Human Services · Latest available filing year: 2024 · Primary form: IRS Form 990

  68. Personnel Association of Sonoma County

    EIN 680160946 · Headquarters: WINDSOR, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  69. Peten Health

    EIN 815408198 · Headquarters: WINDSOR, CA, USA · International, Foreign Affairs & National Security · Latest available filing year: 2025 · Primary form: IRS Form 990

  70. Progression Gymnastics Boosters Club

    EIN 393654467 · Headquarters: Windsor, CA, US · Recreation & Sports · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  71. Progressive Tribal Alliance

    EIN 882678469 · Headquarters: WINDSOR, CA, USA · Arts, Culture & Humanities · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  72. Project Inform

    EIN 943052723 · Headquarters: Windsor, CA, USA · Diseases, Disorders & Medical Disciplines · Latest available filing year: 2018 · Primary form: IRS Form 990

  73. Project Safe Crossings

    EIN 461482383 · Headquarters: Windsor, CA, US · Public Safety, Disaster Preparedness & Relief · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  74. Pta California Congress of Parents

    EIN 900338056 · Headquarters: WINDSOR, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  75. Pta California Congress of Parents Teachers & Students Inc

    EIN 884218615 · Headquarters: Windsor, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  76. Pta California Congress of Parents Teachers & Students Inc

    EIN 946174812 · Headquarters: Windsor, CA, US · Education · Latest available filing year: 2015 · Primary form: IRS Form 990-N

  77. Puente Education Foundation

    EIN 472862790 · Headquarters: Windsor, CA, US · Education · Latest available filing year: 2017 · Primary form: IRS Form 990-N

  78. Racing for Science

    EIN 461888720 · Headquarters: Windsor, CA, US · Social Science · Latest available filing year: 2014 · Primary form: IRS Form 990-N

  79. Rebuilding Nepal Schools Inc

    EIN 474112742 · Headquarters: WINDSOR, CA, USA · International, Foreign Affairs & National Security · Latest available filing year: 2017 · Primary form: IRS Form 990-EZ

  80. Research Advantage Institute

    EIN 471815661 · Headquarters: Windsor, CA, US · Science & Technology · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  81. Rincon Valley Firemens Association

    EIN 946103411 · Headquarters: Windsor, CA, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  82. Rotary District 5130 Disaster Relief Fund

    EIN 830852722 · Headquarters: WINDSOR, CA, US · Public Safety, Disaster Preparedness & Relief · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  83. Russian River Masonic Temple Association

    EIN 263671765 · Headquarters: Windsor, CA, USA · Mutual & Membership Benefit · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  84. Russian River Valley Winegrowers Foundation Inc

    EIN 204984362 · Headquarters: Windsor, CA, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  85. Ruthie Lou Foundation

    EIN 465312498 · Headquarters: WINDSOR, CA, US · Health Care · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  86. Santa Rosa Express Youth Running Club Inc

    EIN 453267239 · Headquarters: Windsor, CA, US · Recreation & Sports · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  87. Santa Rosa Flying Club

    EIN 800936060 · Headquarters: Windsor, CA, US · Unknown & Unclassified · Latest available filing year: 2012 · Primary form: IRS Form 990-N

  88. Santa Tim

    EIN 452393071 · Headquarters: WINDSOR, CA, USA · Human Services · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  89. Sentry Saints

    EIN 923994528 · Headquarters: Windsor, CA, US · Human Services · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  90. Shasta Animal Welfare Foundation

    EIN 800354151 · Headquarters: Windsor, CA, US · Animal Related · Latest available filing year: 2012 · Primary form: IRS Form 990-N

  91. Shebang Ventures

    EIN 383828090 · Headquarters: Windsor, CA, US · Animal Related · Latest available filing year: 2017 · Primary form: IRS Form 990-N

  92. Social Service Data Solutions Inc

    EIN 832789717 · Headquarters: WINDSOR, CA, USA · Housing & Shelter · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  93. Sonder Ranch Inc

    EIN 562550671 · Headquarters: Windsor, CA, US · Human Services · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  94. Sonoma County Firefighters Foundation

    EIN 853396442 · Headquarters: WINDSOR, CA, US · Public Safety, Disaster Preparedness & Relief · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  95. Sonoma County Kidney Crisis Foundation

    EIN 237172126 · Headquarters: WINDSOR, CA, US · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  96. Sonoma County Premier Soccer

    EIN 825508360 · Headquarters: WINDSOR, CA, USA · Youth Development · Latest available filing year: 2025 · Primary form: IRS Form 990

  97. Sonoma County Reserve Deputies Association

    EIN 680421826 · Headquarters: Windsor, CA, US · Crime & Legal Related · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  98. Sonoma County Search and Rescue Incorporated

    EIN 263827539 · Headquarters: Windsor, CA, US · Public Safety, Disaster Preparedness & Relief · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  99. Sons in Retirement Incorporated

    EIN 946114266 · Headquarters: Windsor, CA, US · Housing & Shelter · Latest available filing year: 2014 · Primary form: IRS Form 990-N

  100. Soroptimist International of the Americas Inc

    EIN 201194309 · Headquarters: Windsor, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

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