Tax-exempt organization ยท Files a Form 5500
TIDES FOUNDATION
Also filed as TIDES
1012 TORNEY AVE, SAN FRANCISCO, CA 94129-1704
EIN
51-0198509
Tax-exempt status
501(c)(3) charitable, religious, educational
IRS · 2026-09
Deductibility
Contributions are deductible
IRS · 2026-09
Foundation classification
Publicly supported charity (170(b)(1)(A)(vi))
IRS · 2026-09
IRS ruling date
1977-01
IRS · 2026-09
NTEE code
T300
IRS · 2026-09
Latest tax period on file
2024-12
IRS · 2026-09
Revenue (latest 990)
$367,989,822
IRS · 2026-09
Assets (latest 990)
$534,451,715
IRS · 2026-09
Benefit plan 502, 2024 filing
TIDES HEALTH AND WELFARE PLAN
DOL · 2025-07-22
Participants (start of year)
1,435
DOL · 2025-07-22
Plan features
code 4A4B4D4E4F4H4L
DOL · 2025-07-22
Plan type
Single-employer plan
DOL · 2025-07-22
Business code (NAICS)
813000
DOL · 2025-07-22
Benefit plan 502, 2023 filing
TIDES HEALTH AND WELFARE PLAN
DOL · 2024-10-15