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Data / Nonprofits / California / Eureka / Community improvement and capacity building

Community improvement and capacity building nonprofits in Eureka, CA: 17 registered with the IRS

17 community improvement and capacity building nonprofits are registered with the IRS in Eureka, CA, 9 of them 501(c)(3) charities; the 11 that report revenue took in $15.4 million. The largest by revenue: Arcata Economic Development Corporation ($12.7 million), Humboldt Lodging Alliance Inc ($1.5 million), Humboldt Masonic Temple Asso ($224,959).

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Every organization, largest by revenue first

OrganizationTypeSinceRevenueAssetsFiling
Arcata Economic Development Corporation501(c)(3)1980$12.7 million$16.9 million2026-06
Humboldt Lodging Alliance Inc501(c)(6)2013$1.5 million$4.3 million2025-06
Humboldt Masonic Temple Asso501(c)(2)2019$224,959$3.3 million2025-12
North Coast Fishermens Cable Committee501(c)(6)2021$220,708$294,2752025-12
Redwood Coast Chamber Foundation501(c)(3)2024$216,853$41,9602025-12
Humboldt Made Corporation501(c)(3)2025$183,965$88,5932025-06
California Federation of Womens Clubs501(c)(3)2018$153,394$331,0482026-05
California Fishermens Resiliency Association501(c)(6)2022$86,782$1,5092025-12
Eureka 1923 Public Benefit Corporation501(c)(3)2010$53,752$73,7872025-06
Rotary International501(c)(4)1966$35,576$50,6992025-06
North Coast Small Business Resource Center501(c)(3)1985$5,005$5,4392025-12
Fram Building Association Inc501(c)(2)2018$0$02025-12
Humboldt Bay Development Association Inc501(c)(3)2016$0$2942025-06
Humboldt County Bar Association501(c)(6)2024$0$02025-12
Humboldt Trails Council501(c)(3)2006$0$02025-12
Redwood Family Camp501(c)(3)2025
Supreme Emblem Club of the United States of America Inc501(c)(10)1949$0$02025-12

Other causes in Eureka, CA

Every nonprofit in Eureka, CA · Community improvement and capacity building nonprofits across the state · 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.