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Data / Nonprofits / California / Arcata

Nonprofits in Arcata, CA: 162 registered with the IRS

162 nonprofits are registered with the IRS in Arcata, CA, 140 of them 501(c)(3) charities; the 66 that report revenue took in $456 million. The largest by revenue: Open Door Community Health Centers ($132.4 million), Internews Network ($111.3 million), United Indian Health Services Inc ($62 million). Most common causes: education (28), arts, culture and humanities (16), environment (14).

SpecStream is the live web data engine for teams and agents. It reads the IRS register of exempt organizations as the IRS updates it, and this page is that reading. Ask for the nonprofits you need by place, cause and size, with their latest Form 990 figures and websites, and they arrive in your sheet, CRM, Slack or agent.

Every organization, largest by revenue first

OrganizationCategoryTypeSinceRevenueAssetsFiling
Open Door Community Health CentersHealth care501(c)(3)1971$132.4 million$104.6 million2025-12
Internews NetworkArts, culture and humanities501(c)(3)1987$111.3 million$37.7 million2024-12
United Indian Health Services IncHealth care501(c)(3)1970$62 million$81.1 million2025-06
Cal Poly Humboldt Sponsored Programs FoundationEducation501(c)(3)1952$61 million$34.3 million2025-06
Cal Poly Humboldt FoundationEducation501(c)(3)1947$15.9 million$70.5 million2025-06
Northcoast Childrens Services IncEducation501(c)(3)1973$14.5 million$4.8 million2025-06
Arcata House PartnershipHousing and shelter501(c)(3)2014$12.1 million$22.9 million2024-12
The Seventh Generation Fund for Indigenous Peoples IncHuman services501(c)(3)1984$4.5 million$31.7 million2024-12
Coastal Grove Charter SchoolEducation501(c)(3)2008$4.1 million$1.1 million2025-06
Conservation Strategy FundEnvironment501(c)(3)1998$3.7 million$3.7 million2024-12
Laurel Tree Charter SchoolEducation501(c)(3)2013$3.4 million$3.9 million2025-06
Pacific Coast Fish Wildlife and Wetlands AssocEnvironment501(c)(3)1996$3.2 million$754,0482025-12
Fuente Nueva Charter SchoolEducation501(c)(3)2008$2.8 million$1.2 million2025-06
North Coast Growers AssociationFood, agriculture and nutrition501(c)(3)2009$2.2 million$1.5 million2025-12
Evolve Youth ServicesYouth development501(c)(3)2016$1.7 million$716,8792025-12
Northcoast Preparatory & Performing Arts AcademyEducation501(c)(3)2007$1.6 million$861,1052025-06
North Coast Rape Crisis Team501(c)(3)1982$1.6 million$722,5452025-12
Union Street CharterEducation501(c)(3)2007$1.6 million$1 million2025-06
Friends of the DunesEnvironment501(c)(3)1996$1.5 million$3.4 million2024-12
Queer HumboldtCivil rights, social action and advocacy501(c)(3)2006$1.5 million$867,4532024-12
Adult Day Health Care of Mad RiverHuman services501(c)(3)1986$917,339$485,1322026-06
Wisdom of the Heart ChurchReligion-related501(c)(3)2004$904,819$2.5 million2024-12
Associated Students of Cal Poly HumboldtYouth development501(c)(3)1991$899,108$670,1432025-06
Mattole Salmon GroupAnimal-related501(c)(3)1983$895,414$445,6242024-12
Centro Del Pueblo Movimiento Indigena MigranteHuman services501(c)(3)2022$877,843$624,9232025-12
Trillium Charter SchoolEducation501(c)(3)2008$843,080$494,4592025-06
Playhouse ArtsArts, culture and humanities501(c)(3)2008$814,488$267,6802025-06
Environmental Protection Information Center IncEnvironment501(c)(3)1990$737,556$771,1092025-12
Thrive 777Public and societal benefit501(c)(3)2024$460,676$128,6932025-12
Bird Ally XAnimal-related501(c)(3)2012$419,178$338,0832024-12
Road Runners Club of America501(c)(3)1976$417,485$462,8902025-07
Arcata Area Chamber of Commerce501(c)(6)1952$365,717$451,6182024-12
Creative SanctuaryArts, culture and humanities501(c)(3)2015$359,985$208,5752025-06
Friends of the Eel RiverEnvironment501(c)(3)1999$358,368$499,9402025-12
Humboldt State University Center Board of DirectorEducation501(c)(3)1970$355,447$7.4 million2025-06
Siskiyou Land ConservancyEnvironment501(c)(3)2004$341,379$2 million2025-12
Realgirl FoundationYouth development501(c)(3)2014$261,776$238,1522025-12
Northcoast Environmental CenterEnvironment501(c)(3)1971$251,777$432,8762025-12
Free & Accepted Masons of California501(c)(10)1940$240,094$2.4 million2024-12
Greenwood Cemetery Association of Arcata Inc501(c)(13)1950$216,967$1.8 million2025-06
Humboldt WaterkeeperEnvironment501(c)(3)2023$181,988$172,6582025-12
Mad River Youth Soccer League IncRecreation and sports501(c)(3)2016$179,192$98,1132025-12
Cal Poly Humboldt Real Estate HoldingsEducation501(c)(3)2016$171,210$6.2 million2025-06
Humboldt Light Opera CompanyArts, culture and humanities501(c)(3)1979$166,731$99,4572025-06
ExitheatreArts, culture and humanities501(c)(3)1985$164,335$135,7262026-06
Mad River Girls Fastpitch Softball Association IncRecreation and sports501(c)(3)2020$138,103$30,5162024-12
Coastal Grove Charter School Parent OrganizationEducation501(c)(3)2008$134,914$215,5992025-06
Humboldt WildRecreation and sports501(c)(3)2011$131,219$8,0552025-12
Nature Rights CouncilHuman services501(c)(3)2015$119,257$23,1692024-12
Mad River Community Hospital Volunteers501(c)(3)1987$118,821$276,5472025-12
Redwood Coast Mountain Bike Association IncEducation501(c)(3)2026$111,667$114,0672025-12
American Legion501(c)(19)2021$95,829$28,7182024-12
Redwood Raks CollectiveArts, culture and humanities501(c)(3)2020$91,879$53,0282025-12
Arcata Volunteer Firefighters Association IncPublic safety, disaster preparedness and relief501(c)(3)2009$90,406$79,4582025-12
Equinox Center for EducationEducation501(c)(3)1971$82,357$400,9672025-06
Humboldt Center for New Growth IncMental health and crisis intervention501(c)(3)2023$77,782$63,8422025-12
Klamath Forest AllianceEnvironment501(c)(3)1994$63,529$56,7002025-06
Energy and Resource Advocates501(c)(3)1994$62,338$24,5092025-12
Humboldt Folklife SocietyArts, culture and humanities501(c)(3)1996$58,185$38,1752024-12
Coalition for Responsible Transportation PrioritiesCommunity improvement and capacity building501(c)(3)2020$51,635$67,0352025-12
Godwit DaysAnimal-related501(c)(3)2005$47,336$50,7372025-06
Rotary Club of Arcata Sunrise Community FoundationHuman services501(c)(3)2008$45,031$27,6062025-06
Trib ResearchEnvironment501(c)(3)2021$32,188$12,3212025-12
Redwood Curtain ConsortiumArts, culture and humanities501(c)(3)2007$25,535$48,3802024-12
Pacific Union School PtoEducation501(c)(3)2013$13,338$113,7552025-06
Open Door Capital SupportPhilanthropy, voluntarism and grantmaking foundations501(c)(3)2015$6,075$268,1362025-12
Aes Booster ClubEducation501(c)(3)2022$0$02026-04
Amigos de Fuente NuevaEducation501(c)(3)2013$0$02025-06
Anne S Pierson L & A FoundationPhilanthropy, voluntarism and grantmaking foundations501(c)(3)2026
Arcata Campbell Creek Connexion501(c)(3)1963
Arcata Church of the Nazarene501(c)(3)1963
Arcata Interfaith Gospel Choir IncArts, culture and humanities501(c)(3)1999$0$02025-07
Arcata Little League & Babe Ruth League IncRecreation and sports501(c)(3)1973$0$02024-12
Arcata Masonic Hall Association501(c)(2)1972$0$02025-12
Arcata-Camoapa Sister City ProjectHuman services501(c)(3)2025
Bahais of Arcata501(c)(3)1965
Birdsong Wellness IncMental health and crisis intervention501(c)(3)2024$0$02026-06
Branches Humboldt IncReligion-related501(c)(3)2022
California Federation of Womens Clubs Redwood District 1501(c)(4)1973$0$02026-05
California Teachers AssociationMutual and membership benefit501(c)(5)2015$0$02025-12
Californians for Alternatives To Toxic SpraysEnvironment501(c)(3)1984$0$02023-12
Cannabis Device Safety Institute in CPublic and societal benefit501(c)(3)2026
Catalyst Church HumboldtReligion-related501(c)(3)2014
Chamber Players of the RedwoodsArts, culture and humanities501(c)(3)2017$0$02026-06
Chi Phiu Fraternity Epsilon Zeta Alumni Association501(c)(7)2025
Church of God 7TH Day of Arcata501(c)(3)1974
Conservation Unlimited Alumni AssociationEducation501(c)(3)2019$0$02025-12
Cumbre HumboldtEducation501(c)(3)2019$0$02025-12
Disabled Adventure OutfittersRecreation and sports501(c)(3)1998$0$02025-05
Earth Church InternationalReligion-related501(c)(3)1997
Equine Empowered Education IncMental health and crisis intervention501(c)(3)2025$0$02025-06
Explore North Coast IncPublic safety, disaster preparedness and relief501(c)(3)2005$0$02025-12
Fieldbrook Community Church501(c)(3)1989
First Baptist Church501(c)(3)1955
First United Pentecostal Church501(c)(3)1958
Foundation for Curriculum Theory IncEducation501(c)(3)2017$0$02025-12
Friends of the Arcata MarshEnvironment501(c)(3)1991$0$02025-09
Full Circle Foundation for Integrated Medicine IncHealth care501(c)(3)2006$0$02024-12
G I Rights NetworkEducation501(c)(3)2010$0$02024-12
Gatecom Educational CorporationEducation501(c)(3)1983$0$02025-06
Historical Sites Society of Arcata Incorporated501(c)(3)1974$0$02026-06
Hope Equestrian Relay Organization IncorporatedDiseases, disorders and medical disciplines501(c)(3)2010$0$02024-12
Humboldt Bay Mycological Society501(c)(7)1994$0$02025-12
Humboldt County Beekeepers AssociationFood, agriculture and nutrition501(c)(3)2015$0$02025-12
Humboldt Del Norte Vet Med AssocAnimal-related501(c)(3)2017$0$02024-12
Humboldt Folk DancersArts, culture and humanities501(c)(3)2010$0$02025-12
Humboldt Handweavers & Spinners Gui LDEducation501(c)(3)1973$0$02025-12
Humboldt Highlanders Pipe Band IncArts, culture and humanities501(c)(3)2023$0$02025-12
Humboldt Orchid SocietyEnvironment501(c)(3)2007$0$02025-12
Humboldt Permaculture GuildFood, agriculture and nutrition501(c)(3)2012$0$02025-12
Humboldt Soccer LeagueRecreation and sports501(c)(4)2022$0$02025-12
Humboldt Soups OnHuman services501(c)(3)2024$0$02025-12
Humboldt TimberwolvesRecreation and sports501(c)(3)2025$0$02025-12
Humboldt Trinity HealthcareHealth care501(c)(3)2015$0$02024-06
International Association of Machinists & Aerospace Workers501(c)(5)1940$0$02025-12
Islamic Center of HumboldtReligion-related501(c)(3)2023
Italian Catholic Federation of California Inc501(c)(8)1972$0$02025-12
Justin Fox MinistriesEducation501(c)(3)1996$0$02025-12
Kiwanis International Inc501(c)(4)1956$0$02025-09
Knights of Columbus501(c)(8)1940$0$02025-12
Living Waters FoundationPhilanthropy, voluntarism and grantmaking foundations501(c)(3)2021$38,2952024-12
Long Prairie Gun and Archery ClubRecreation and sports501(c)(7)2010$0$02025-06
Long Range Education Empowerment and Action Project501(c)(3)1993$0$02025-12
Lost Coast Aviators Eaa Chapter 1418 IncorporatedArts, culture and humanities501(c)(3)2006$0$02025-12
Lost Coast Humane SocietyAnimal-related501(c)(3)2006$0$02025-06
Lost Coast VenturesEducation501(c)(3)2023$0$02025-06
Lutheran Church of Arcata501(c)(3)1941
Manila Community Church of God501(c)(3)1972
Marching Lumberjacks Alumni AssociationEducation501(c)(7)2015$0$02025-12
Mateel Environmental Justice FoundationEnvironment501(c)(3)1997$0$02025-05
Mountain Top Christian Fellowship IncReligion-related501(c)(3)1999
Neo Evolutionary Logic ProjectArts, culture and humanities501(c)(3)2019$0$02025-12
Noble Redwood Company501(c)(2)1955$0$02023-06
North Coast Section California Music Educators AssociationArts, culture and humanities501(c)(3)2025$0$02025-09
North Coast Stand DownHuman services501(c)(3)2007$0$02025-09
Northcoast Aikido FoundationEducation501(c)(3)2008$0$02025-12
Order of the Eastern Star of California501(c)(10)2020
Our HearthCommunity improvement and capacity building501(c)(3)2025
Pentecostal Church of God No Dist501(c)(3)1959
Psi Chi the National Honor Society in Psychology501(c)(3)1957$0$02025-06
Redwood Coast Emegency Training Center Inc501(c)(3)1989$0$02025-06
Redwood Coast Junior Golf Association501(c)(3)1985$0$02025-12
Redwood Coast Schutzhund ClubAnimal-related501(c)(7)2025$0$02025-12
Redwood Environmental Education Institute501(c)(3)1982$0$02024-12
Redwood Gun Club501(c)(4)1982$0$02024-12
Redwood Jazz AllianceArts, culture and humanities501(c)(3)2007$0$02025-07
Rooster ProjectAnimal-related501(c)(3)2025
Rotary Club of Arcata Community FoundationPhilanthropy, voluntarism and grantmaking foundations501(c)(3)2015$0$02025-06
Rotary International501(c)(4)1942$0$02026-06
Rotary International501(c)(4)1958$0$02025-06
SBMS Booster ClubEducation501(c)(3)2026
Schmidbauer Family FoundationPhilanthropy, voluntarism and grantmaking foundations501(c)(3)2014$18 million2025-06
Soroptimist International of the Americas IncCrime and legal-related501(c)(3)2002$0$02026-06
St Joseph Hospital Eureka501(c)(3)1946
Swim QuestRecreation and sports501(c)(3)2019$0$02025-12
Tamtams Farm SanctuaryAnimal-related501(c)(3)2024$0$02025-12
Telios Christian FellowshipReligion-related501(c)(3)1995
Tiferet Center IncReligion-related501(c)(3)2005$41,1272024-12
Tigers Gathering Energy Resource Services Inc501(c)(3)1985$0$02025-06
United States Amateur Rafting CoalitionRecreation and sports501(c)(3)2023$0$02025-12
Vietnam Friendship Village Project USA IncPhilanthropy, voluntarism and grantmaking foundations501(c)(3)1996$0$02025-09
Youth Golf Foundation of BaywoodRecreation and sports501(c)(3)2026

By cause in Arcata, CA

Nonprofits in every city of the state

Read from the IRS Exempt Organizations Business Master File, updated by the IRS on October 24, 2026 and rebuilt here every morning. Revenue and assets are from each organization's latest filing as the IRS lists it; the IRS record is the official one. Organizations only: no people are named on these pages.