Nonprofits in Arcata, California

Nonprofits in Arcata, California. Browse 179 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. Adult Day Health Care of Mad River

    EIN 943005997 · Headquarters: ARCATA, CA, USA · Human Services · Latest available filing year: 2024 · Primary form: IRS Form 990

  2. Aes Booster Club

    EIN 881304768 · Headquarters: Arcata, CA, US · Education · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  3. Alliance for Sustainable Jobs and the Environment

    EIN 943341423 · Headquarters: Arcata, CA, US · Environment · Latest available filing year: 2010 · Primary form: IRS Form 990-N

  4. Amateur Athletic Union of the United States

    EIN 421755796 · Headquarters: arcata, CA, US · Recreation & Sports · Latest available filing year: 2008 · Primary form: IRS Form 990-N

  5. American Federation of Teachers

    EIN 800179376 · Headquarters: Arcata, CA, US · Education · Latest available filing year: 2010 · Primary form: IRS Form 990-N

  6. Amigos De Fuente Nueva

    EIN 461421380 · Headquarters: Arcata, CA, US · Education · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  7. Arcata & Mad River Railroad Historical Society

    EIN 680192580 · Headquarters: Arcata, CA, US · Arts, Culture & Humanities · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  8. Arcata Chamber of Commerce

    EIN 941211704 · Headquarters: ARCATA, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  9. Arcata Children's Center

    EIN 942601412 · Headquarters: Arcata, CA, USA · Human Services · Latest available filing year: 2012 · Primary form: IRS Form 990

  10. Arcata Community Recycling Center Inc

    EIN 942586999 · Headquarters: Arcata, CA, USA · Environment · Latest available filing year: 2012 · Primary form: IRS Form 990

  11. Arcata Downtown Business Community

    EIN 680167959 · Headquarters: Arcata, CA, USA · Community Improvement & Capacity Building · Latest available filing year: 2023 · Primary form: IRS Form 990-EZ

  12. Arcata House Partnership

    EIN 943163269 · Headquarters: ARCATA, CA, USA · Housing & Shelter · Latest available filing year: 2024 · Primary form: IRS Form 990

  13. Arcata Interfaith Gospel Choir Inc

    EIN 911850607 · Headquarters: Arcata, CA, US · Arts, Culture & Humanities · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  14. Arcata Little League & Babe Ruth League Inc

    EIN 237110595 · Headquarters: ARCATA, CA, US · Recreation & Sports · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  15. Arcata Masonic Hall Association

    EIN 941745365 · Headquarters: Arcata, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  16. Arcata Post No 274 the American Legion Department of Ca

    EIN 946083103 · Headquarters: ARCATA, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  17. Arcata-camoapa Sister City Project

    EIN 943399692 · Headquarters: Arcata, CA, US · Human Services · Latest available filing year: 2016 · Primary form: IRS Form 990-N

  18. Associated Students of Cal Poly Humboldt

    EIN 941201195 · Headquarters: ARCATA, CA, USA · Youth Development · Latest available filing year: 2024 · Primary form: IRS Form 990

  19. Bird Ally X

    EIN 272811727 · Headquarters: Arcata, CA, USA · Animal Related · Latest available filing year: 2024 · Primary form: IRS Form 990

  20. Breast and Gyn Health Project

    EIN 651205183 · Headquarters: ARCATA, CA, USA · Health Care · Latest available filing year: 2025 · Primary form: IRS Form 990

  21. Brotherhood of the Divine Holy Ghost of California

    EIN 237616042 · Headquarters: Arcata, CA, US · Religion Related · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  22. Cal Poly Humboldt

    EIN 946050071 · Headquarters: Arcata, CA, US · Education · Latest available filing year: 2024 · Primary form: IRS Form 990

  23. Cal Poly Humboldt Foundation

    EIN 946077724 · Headquarters: ARCATA, CA, USA · Education · Latest available filing year: 2024 · Primary form: IRS Form 990

  24. Cal Poly Humboldt Real Estate Holdings

    EIN 812593561 · Headquarters: ARCATA, CA, USA · Education · Latest available filing year: 2024 · Primary form: IRS Form 990

  25. California Federation of Womens Clubs Redwood District 1

    EIN 237230857 · Headquarters: Arcata, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  26. California Teachers Association

    EIN 942751293 · Headquarters: Arcata, CA, US · Mutual & Membership Benefit · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  27. Californians for Alternatives to Toxic Sprays

    EIN 680003741 · Headquarters: Arcata, CA, US · Environment · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  28. Cannabis for Conservation

    EIN 824519087 · Headquarters: ARCATA, CA, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  29. Centro Del Pueblo Movimiento Indigena Migrante

    EIN 920411172 · Headquarters: Arcata, CA, USA · Human Services · Latest available filing year: 2025 · Primary form: IRS Form 990

  30. Chamber Players of the Redwoods

    EIN 352396623 · Headquarters: Arcata, CA, US · Arts, Culture & Humanities · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  31. Chi Phi Fraternity

    EIN 800433013 · Headquarters: ARCATA, CA, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  32. Coalition for Responsible Transportation Priorities

    EIN 851133849 · Headquarters: Arcata, CA, USA · Community Improvement & Capacity Building · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  33. Coastal Grove Charter School

    EIN 364597600 · Headquarters: Arcata, CA, USA · Education · Latest available filing year: 2024 · Primary form: IRS Form 990

  34. Coastal Grove Charter School Parent Organization

    EIN 870787442 · Headquarters: ARCATA, CA, USA · Education · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  35. Connexus Communications

    EIN 371566825 · Headquarters: Arcata, CA, US · Arts, Culture & Humanities · Latest available filing year: 2008 · Primary form: IRS Form 990-N

  36. Conselho Supremo Da Uniao Portugueza Do Estado Da California

    EIN 237532096 · Headquarters: Arcata, CA, US · Mutual & Membership Benefit · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  37. Conservation Unlimited Alumni Association

    EIN 946184435 · Headquarters: Arcata, CA, US · Education · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  38. Creative Sanctuary

    EIN 474860438 · Headquarters: ARCATA, CA, USA · Arts, Culture & Humanities · Latest available filing year: 2024 · Primary form: IRS Form 990

  39. Cumbre Humboldt

    EIN 841788919 · Headquarters: ARCATA, CA, US · Education · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  40. Cutting to the Chase Inc

    EIN 463080459 · Headquarters: Arcata, CA, US · Employment · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  41. Disabled Adventure Outfitters

    EIN 680418938 · Headquarters: ARCATA, CA, US · Recreation & Sports · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  42. Energy & Resource Advocates Inc

    EIN 680226011 · Headquarters: Arcata, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  43. Environmental Protection Information Center

    EIN 942798433 · Headquarters: Arcata, CA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990

  44. Equinox Center for Education

    EIN 237116546 · Headquarters: Arcata, CA, USA · Education · Latest available filing year: 2024 · Primary form: IRS Form 990

  45. Evolve Youth Services

    EIN 812500610 · Headquarters: ARCATA, CA, USA · Youth Development · Latest available filing year: 2025 · Primary form: IRS Form 990

  46. Exitheatre

    EIN 942967043 · Headquarters: ARCATA, CA, USA · Arts, Culture & Humanities · Latest available filing year: 2025 · Primary form: IRS Form 990

  47. Explore North Coast Inc

    EIN 201549404 · Headquarters: Arcata, CA, US · Public Safety, Disaster Preparedness & Relief · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  48. Falderal Musical Theater Co Inc

    EIN 043609552 · Headquarters: Arcata, CA, US · Arts, Culture & Humanities · Latest available filing year: 2010 · Primary form: IRS Form 990-N

  49. Foundation for Curriculum Theory Inc

    EIN 264201612 · Headquarters: Arcata, CA, US · Education · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  50. Free and Accepted Masons Six Rivers Lodge 106

    EIN 941519133 · Headquarters: Arcata, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  51. Friends of the Arcata Library

    EIN 680414807 · Headquarters: Arcata, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  52. Friends of the Arcata Marsh

    EIN 680232871 · Headquarters: Arcata, CA, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  53. Friends of the Dunes

    EIN 680373871 · Headquarters: ARCATA, CA, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  54. Friends of the Eel River

    EIN 680423026 · Headquarters: ARCATA, CA, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990

  55. Fuente Nueva Charter School

    EIN 261785934 · Headquarters: Arcata, CA, USA · Education · Latest available filing year: 2024 · Primary form: IRS Form 990

  56. Full Circle Foundation for Integrated Medicine Inc

    EIN 010730564 · Headquarters: Arcata, CA, US · Health Care · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  57. G I Rights Network

    EIN 161778851 · Headquarters: arcata, CA, US · Education · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  58. Gatecom Educational Corporation

    EIN 942842811 · Headquarters: Arcata, CA, US · Education · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  59. Godwit Days

    EIN 201860551 · Headquarters: Arcata, CA, USA · Animal Related · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  60. Greenwood Cemetery Association of Arcata

    EIN 941194380 · Headquarters: ARCATA, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  61. Hertha Elisabeth and Robert Moritz Solmitz Archive

    EIN 450525729 · Headquarters: ARCATA, CA, US · Arts, Culture & Humanities · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  62. Historical Sites Society of Arcata Incorporated

    EIN 237301654 · Headquarters: Arcata, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  63. Hope Equestrian Relay Organization Incorporated

    EIN 270994681 · Headquarters: ARCATA, CA, US · Diseases, Disorders & Medical Disciplines · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  64. Humboldt B525

    EIN 465368561 · Headquarters: Arcata, CA, US · Recreation & Sports · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  65. Humboldt Bay Center for Sustainable Living

    EIN 261104153 · Headquarters: Arcata, CA, US · Environment · Latest available filing year: 2011 · Primary form: IRS Form 990-N

  66. Humboldt Bay Mycological Society

    EIN 943214561 · Headquarters: Arcata, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  67. Humboldt Bay Tsunami Planning Foundation

    EIN 461858899 · Headquarters: Arcata, CA, US · Unknown & Unclassified · Latest available filing year: 2013 · Primary form: IRS Form 990-N

  68. Humboldt Center for New Growth Inc

    EIN 320735473 · Headquarters: Arcata, CA, USA · Mental Health & Crisis Intervention · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  69. Humboldt County Beekeepers Association

    EIN 465279488 · Headquarters: ARCATA, CA, US · Food, Agriculture & Nutrition · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  70. Humboldt Crabs Baseball Inc

    EIN 680351342 · Headquarters: ARCATA, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  71. Humboldt Del Norte Vet Med Assoc

    EIN 680066084 · Headquarters: Arcata, CA, US · Animal Related · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  72. Humboldt Educare

    EIN 942585609 · Headquarters: ARCATA, CA, USA · Education · Latest available filing year: 2022 · Primary form: IRS Form 990-EZ

  73. Humboldt Folk Dancers

    EIN 261791731 · Headquarters: Arcata, CA, US · Arts, Culture & Humanities · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  74. Humboldt Folklife Society

    EIN 680172772 · Headquarters: ARCATA, CA, USA · Arts, Culture & Humanities · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  75. Humboldt Handweavers

    EIN 237231102 · Headquarters: Arcata, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  76. Humboldt Highlanders Pipe Band Inc

    EIN 933191943 · Headquarters: Arcata, CA, US · Arts, Culture & Humanities · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  77. Humboldt Light Opera Company

    EIN 942549968 · Headquarters: ARCATA, CA, USA · Arts, Culture & Humanities · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  78. Humboldt Orchid Society

    EIN 680122923 · Headquarters: Arcata, CA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  79. Humboldt Permaculture Guild

    EIN 273186261 · Headquarters: Arcata, CA, US · Food, Agriculture & Nutrition · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  80. Humboldt Soccer League

    EIN 680065569 · Headquarters: Arcata, CA, US · Recreation & Sports · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  81. Humboldt Soups On

    EIN 991695234 · Headquarters: ARCATA, CA, US · Human Services · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  82. Humboldt State University Center Board of Directors

    EIN 941627074 · Headquarters: ARCATA, CA, USA · Education · Latest available filing year: 2024 · Primary form: IRS Form 990

  83. Humboldt Timberwolves

    EIN 205194791 · Headquarters: Arcata, CA, US · Recreation & Sports · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  84. Humboldt Trinity Healthcare

    EIN 452037128 · Headquarters: Arcata, CA, US · Health Care · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  85. Humboldt Waterkeeper

    EIN 861468130 · Headquarters: Arcata, CA, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  86. Humboldt Wild

    EIN 800561547 · Headquarters: ARCATA, CA, USA · Recreation & Sports · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  87. Humboldt Wildlife Care Center

    EIN 942816222 · Headquarters: Arcata, CA, USA · Animal Related · Latest available filing year: 2014 · Primary form: IRS Form 990-EZ

  88. Humboldt Woodworking Society

    EIN 270968303 · Headquarters: Arcata, CA, US · Arts, Culture & Humanities · Latest available filing year: 2015 · Primary form: IRS Form 990-N

  89. Institute for Wildlife Studies

    EIN 942612613 · Headquarters: Arcata, CA, USA · Animal Related · Latest available filing year: 2024 · Primary form: IRS Form 990

  90. International Association of Machinists & Aerospace Workers

    EIN 680327595 · Headquarters: Arcata, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  91. Internews Network

    EIN 943027961 · Headquarters: ARCATA, CA, USA · Arts, Culture & Humanities · Latest available filing year: 2024 · Primary form: IRS Form 990

  92. Italian Catholic Federation of California Inc

    EIN 237641124 · Headquarters: Arcata, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  93. Justin Fox Ministries

    EIN 931200982 · Headquarters: Arcata, CA, US · Education · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  94. Kappa Sigma Fraternity Tau-beta Chapter

    EIN 461055876 · Headquarters: ARCATA, CA, US · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  95. Kiwanis International Inc

    EIN 946107664 · Headquarters: arcata, CA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  96. Klamath Forest Alliance

    EIN 680204089 · Headquarters: ARCATA, CA, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  97. Knights of Columbus

    EIN 942792231 · Headquarters: ARCATA, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  98. Laurel Tree Charter School

    EIN 452661454 · Headquarters: ARCATA, CA, USA · Education · Latest available filing year: 2024 · Primary form: IRS Form 990

  99. League of Everyday People Dba Everyday People

    EIN 871333765 · Headquarters: ARCATA, CA, US · Arts, Culture & Humanities · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  100. Lesotho Young Authors Program

    EIN 273284464 · Headquarters: Arcata, CA, US · Arts, Culture & Humanities · Latest available filing year: 2011 · Primary form: IRS Form 990-N

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