Tideline Foundation
Tideline Foundation promotes societal welfare and works to lessen tensions and eliminate prejudice and discrimination by promoting cohesion through building a recognition of the commonality of interest among all citizens through education and communication.
Tideline Foundation at a glance
In short: Tideline Foundation gave $262K across 1 grant in 2025 (avg $262K), mostly in California. Source: 2025 IRS Form 990.
- Annual giving (2025)
- $262,000
- +162.0% vs 2024
- Grants made (2025)
- 1
- +0.0% vs 2024
- Average grant
- $262,000
- +162.0% vs 2024
- Median grant
- $262,000
- Total assets
- $5,022,934
- +6.7% vs 2024
- Primary geography
- California (100% of itemized 2025 grant dollars)
- Latest 990 filing
- Form 990, 2025 View filing
Data from IRS Form 990, 2025; updated September 2026.
Who Tideline Foundation funds
How this funder distributes its grants
Top Recipients
Top recipient in 2025
The largest 2025 recipient was Berkeley Center for American Democracy ($262K).
Grant Size Distribution
2 grants across all recorded years
The most common grant size was in the $100–250K range: 1 grant of 2 (50%).
Geographic Focus
Where this funder awards grants
Grant Distribution by State
Share of the 2025 grant dollars on its one itemized grant.
States
Cities
Giving History
Giving Over Time
Total grant dollars and number of grants per year
From 2024 to 2025, annual grant giving ranged from $100K (2024) to $262K (2025). In 2025 it made 1 grant totaling $262K.
Grants by year
Grant recipients and amounts by year
| Recipient | Purpose | Amount |
|---|---|---|
| Berkeley Center for American Democracy Berkeley, CA | Research Projects | $262,000 |
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Financial History
Multi-year comparison from IRS filings
| Filing year | Total Assets | Revenue | Expenses | Grants paid | Grants | Net Investment Income |
|---|---|---|---|---|---|---|
| 2025 | $5,022,934 | $79,455 | $427,916 | $262,000 | 1 | $79,455 |
| 2024 | $4,707,831 | $422,248 | $159,920 | $100,000 | 1 | $422,248 |
| 2023 | $3,887,251 | $97,517 | $53,635 | — | — | $97,517 |
| 2022 | $3,333,030 | $4,393,440 | $23,327 | — | — | $-606,781 |
About Tideline Foundation
Based on IRS filings
Tideline Foundation is a public charity focused on public and societal benefit, based in San Francisco, CA. IRS filing data is available from 2022 through 2025. As of 2025, the organization holds $5.0M in total assets. In 2025, it awarded 1 grant totaling $262K. Net investment income was $79K.
Focus Areas
Leadership & Key People
Officers and directors from IRS filings
Tideline Foundation is led by Ronald Epstein, President on every filing since 2022; none of the 3 officers listed in 2025 report compensation.
Officers on the 2025 filing
Ronald Epstein
President
On filings since 2022
15 hrs/week
No compensation reported
Cindy Hoang
Treasurer
On filings since 2022
15 hrs/week
No compensation reported
Theresa Epstein
Secretary
On filings since 2022
15 hrs/week
No compensation reported
Data from IRS Form 990 filings, 2022–2025. "On filings since" is the earliest filing we hold that lists the person; hours are average hours per week as reported.
Frequently asked questions about Tideline Foundation
How much does Tideline Foundation give each year?
Tideline Foundation gave $262K across 1 grant in 2025, according to its 2025 IRS Form 990. In 2024 it gave $100K across 1 grant.
How large is Tideline Foundation?
Tideline Foundation reported $5.0M in total assets on its 2025 IRS Form 990. Its revenue that year was $79K.
What is Tideline Foundation?
Tideline Foundation is a public charity focused on public and societal benefit, based in San Francisco, CA. It holds $5.0M in total assets as of 2025.
Where does Tideline Foundation operate?
Tideline Foundation has awarded grants in California.
What is Tideline Foundation's EIN?
Tideline Foundation's EIN (Employer Identification Number) is 87-3420125. IRS Form 990 filing data is available on this page for 2022–2025.
Data last updated September 2026. Sourced from IRS Form 990 filings.
Data update history
(3)
When this profile's IRS filing data changed on Grantable
- Updated Form 990 for fiscal year 2024 (received by the IRS August 14, 2025)
- Added Form 990 for fiscal year 2025 (received by the IRS August 17, 2026)
- IRS filings on file for fiscal years 2022–2024
Live grants for the work Tideline Foundation funds
Public, Societal Benefit Open opportunities, soonest deadline first.
Explore Open Grants
Browse active grant opportunities in Tideline Foundation's focus areas in our free grants database
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Tideline Foundation down — hundreds of funders to go?