Data / Nonprofits / California / Fullerton / Community improvement and capacity building
Community improvement and capacity building nonprofits in Fullerton, CA: 19 registered with the IRS
19 community improvement and capacity building nonprofits are registered with the IRS in Fullerton, CA, 12 of them 501(c)(3) charities; the 8 that report revenue took in $3.4 million. The largest by revenue: California Association of Mutual Water Companies ($2.3 million), Medical Staff of St Jude Medical Center ($359,391), Fullerton Airport Pilot Association ($239,558).
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Every organization, largest by revenue first
Other causes in Fullerton, CA
- Religion-related 215
- Education 113
- Human services 55
- Philanthropy, voluntarism and grantmaking foundations 41
- Recreation and sports 38
- Arts, culture and humanities 36
- Youth development 25
- Mental health and crisis intervention 18
- Health care 14
- International, foreign affairs and national security 12
- Animal-related 12
- Public and societal benefit 11
- Housing and shelter 7
- Environment 6
- Crime and legal-related 5
- Diseases, disorders and medical disciplines 4
- Social science 4
- Mutual and membership benefit 4
- Science and technology 4
- Public safety, disaster preparedness and relief 3
Every nonprofit in Fullerton, 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.