Data / Nonprofits / California / Castro Valley / Public and societal benefit
Public and societal benefit nonprofits in Castro Valley, CA: 10 registered with the IRS
10 public and societal benefit nonprofits are registered with the IRS in Castro Valley, CA, 8 of them 501(c)(3) charities; the 1 that report revenue took in $57,525. The largest by revenue: Sweet Briar Camp ($57,525).
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Every organization, largest by revenue first
| Organization | Type | Since | Revenue | Assets | Filing |
|---|---|---|---|---|---|
| Sweet Briar Camp | 501(c)(12) | 2025 | $57,525 | $550,048 | 2025-12 |
| Absolute Veterans Assistance Inc | 501(c)(3) | 2025 | |||
| Castro Valley Veterans Memorial Library Foundation | 501(c)(3) | 2024 | $0 | $0 | 2025-12 |
| Cityserve International Incorporated | 501(c)(3) | 2024 | $0 | $5,000 | 2025-12 |
| Eden Township Healthcare District Financing Corporation | 501(c)(4) | 2020 | $0 | $1 | 2025-06 |
| Firstgen Connect Inc | 501(c)(3) | 2025 | $0 | $0 | 2025-12 |
| Flex-Tax Charity Group | 501(c)(3) | 2023 | $0 | $0 | 2024-12 |
| League of Women Voters of the Eden Area | 501(c)(3) | 2022 | $0 | $0 | 2026-06 |
| Masters Hand Foundation | 501(c)(3) | 2016 | $0 | $0 | 2025-12 |
| Positive Changes Services Inc | 501(c)(3) | 2025 |
Other causes in Castro Valley, CA
- Religion-related 42
- Education 32
- Recreation and sports 21
- Arts, culture and humanities 17
- Human services 16
- International, foreign affairs and national security 10
- Philanthropy, voluntarism and grantmaking foundations 8
- Health care 8
- Public safety, disaster preparedness and relief 6
- Housing and shelter 6
- Youth development 6
- Environment 6
- Animal-related 5
- Crime and legal-related 5
- Mental health and crisis intervention 4
- Community improvement and capacity building 4
- Mutual and membership benefit 3
Every nonprofit in Castro Valley, CA · Public and societal 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.