Data / Nonprofits / California / Alameda / Mutual and membership benefit
Mutual and membership benefit nonprofits in Alameda, CA: 6 registered with the IRS
6 mutual and membership benefit nonprofits are registered with the IRS in Alameda, CA, 0 of them 501(c)(3) charities; the 3 that report revenue took in $176.8 million. The largest by revenue: Operating Engineers Local Union No 3 Vacation Holiday and Sick Pay ($174.6 million), Sprinkler Fitters Local 483 Health Reimbursement Arrangement Trust Fu ($1.5 million), Hawaii Glaziers Retiree Health Reimbursement Fund ($724,829).
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Every organization, largest by revenue first
| Organization | Type | Since | Revenue | Assets | Filing |
|---|---|---|---|---|---|
| Operating Engineers Local Union No 3 Vacation Holiday and Sick Pay | 501(c)(9) | 2017 | $174.6 million | $31.6 million | 2024-12 |
| Sprinkler Fitters Local 483 Health Reimbursement Arrangement Trust Fu | 501(c)(9) | 2016 | $1.5 million | $5.7 million | 2024-12 |
| Hawaii Glaziers Retiree Health Reimbursement Fund | 501(c)(9) | 2016 | $724,829 | $4.9 million | 2024-12 |
| High Twelve International | 501(c)(10) | 1986 | $0 | $0 | 2025-12 |
| Knights Templar of the United States of America | 501(c)(10) | 1964 | $0 | $0 | 2025-06 |
| Knights of Columbus | 501(c)(8) | 1940 | $0 | $0 | 2023-12 |
Other causes in Alameda, CA
- Human services 50
- Arts, culture and humanities 50
- Education 44
- Recreation and sports 42
- Religion-related 36
- Philanthropy, voluntarism and grantmaking foundations 20
- Youth development 18
- Housing and shelter 12
- Public and societal benefit 12
- Community improvement and capacity building 10
- Animal-related 9
- Employment 9
- International, foreign affairs and national security 8
- Health care 8
- Environment 7
- Mental health and crisis intervention 7
- Civil rights, social action and advocacy 7
- Food, agriculture and nutrition 7
- Science and technology 6
- Crime and legal-related 4
- Diseases, disorders and medical disciplines 3
Every nonprofit in Alameda, CA · Mutual and membership benefit 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.