Susie and Gideon Yu Foundation
Susie and Gideon Yu Foundation is a private foundation, based in Palo Alto, CA. IRS filing data is available from 2020 through 2025. As of 2025, the organization holds $36.3M in total assets. In 2025, it awarded 10 grants totaling $3.6M. Net investment income was $2.5M.
Susie and Gideon Yu Foundation at a glance
In short: Susie and Gideon Yu Foundation gave $3.6M across 10 grants in 2025 (avg $363K), mostly in California. Source: 2025 IRS Form 990-PF.
- Annual giving (2025)
- $3,625,000
- +67.8% vs 2024
- Grants made (2025)
- 10
- +25.0% vs 2024
- Average grant
- $362,500
- +34.3% vs 2024
- Median grant
- $100,000
- Total assets
- $36,272,541
- +4.2% vs 2024
- Primary geography
- California (95% of itemized 2025 grant dollars)
- Latest 990 filing
- Form 990-PF, 2025 View filing
Data from IRS Form 990-PF, 2025; updated November 2026.
Who Susie and Gideon Yu Foundation funds
How this funder distributes its grants
Top Recipients
Top 9 recipients in 2025
The largest 2025 recipient was Monterey Bay Aquarium Foundation ($1.5M). Together the top 9 received $3.6M.
Grant Size Distribution
44 grants across all recorded years
The most common grant size was in the $100–250K range: 18 grants of 44 (41%).
Geographic Focus
Where this funder awards grants
Grant Distribution by State
Share of 2025 grant dollars across all 10 itemized grants.
Cities
How Susie and Gideon Yu Foundation gives
- Giving grew 453% from 2022 to 2025. Method
- In 2025 it paid out 203% of its IRS minimum distribution (the 5% rule). Method
From the foundation's IRS Form 990-PF filings. Methodology.
Giving History
Giving Over Time
Total grant dollars and number of grants per year
From 2020 to 2025, annual grant giving ranged from $655K (2022) to $3.6M (2025). In 2025 it made 10 grants totaling $3.6M.
Grants by year
Grant recipients and amounts by year
| Recipient | Purpose | Amount |
|---|---|---|
| Monterey Bay Aquarium Foundation Monterey, CA | Renovation of the African Penguins Habitat | $1,500,000 |
| California Institute of Technology Pasadena, CA | Gideon and Susie Yu Fellowship Fund | $1,250,000 |
| Bel Air Presbyterian Church Los Angeles, CA | Ministry Fund | $200,000 |
| Oakwood School North Hollywood, CA | Da Vinci Lab and Classroom Complex | $200,000 |
| Bel Air Presbyterian Church Los Angeles, CA | La Fire Relief Fund | $100,000 |
| Council of Korean Americans Washington, DC | Vision Fund | $100,000 |
| Korean American Community Foundation of San Francisco San Jose, CA | General Support | $100,000 |
| Los Angeles Fire Department Foundation Los Angeles, CA | Southern California Wildfires | $100,000 |
| University School of Nashville Nashville, TN | Vincent W Durnan Scholarship Fund | $50,000 |
| Society for Science & the Public Washington, DC | General Support | $25,000 |
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Financial History
Multi-year comparison from IRS filings
| Filing year | Total Assets | Revenue | Expenses | Grants paid | Grants | Qualifying Distributions | Net Investment Income | Distributable Amount |
|---|---|---|---|---|---|---|---|---|
| 2025 | $36,272,541 | $2,468,581 | $5,662,435 | $3,625,000 | 10 | $3,664,265 | $2,475,465 | $1,807,946 |
| 2024 | $34,823,717 | $1,877,030 | $1,664,611 | $2,160,000 | 8 | $2,196,720 | $1,819,412 | $1,685,431 |
| 2023 | $31,360,618 | $1,541,191 | $7,178,460 | $1,875,000 | 5 | $1,906,073 | $1,439,011 | $1,490,105 |
| 2022 | $26,851,443 | $376,869 | $640,714 | $654,950 | 10 | $696,273 | $805,829 | $1,403,746 |
| 2021 | $34,328,979 | $5,208,246 | $1,357,843 | $1,005,000 | 11 | $1,035,972 | $1,453,831 | $1,466,589 |
| 2020 | $28,210,020 | $1,964,947 | $1,997,962 | $2,127,000 | 15 | — | $2,072,269 | $1,297,537 |
Under IRS private-foundation payout rules, Susie and Gideon Yu Foundation reported a distributable amount of $1.8M for 2025 — the minimum it must pay out in qualifying distributions.
Leadership & Key People
Officers and directors from IRS filings
Susie and Gideon Yu Foundation is led by Susie Yu, President, Secretary & Director on every filing since 2020; none of the 2 officers listed in 2025 report compensation.
Officers on the 2025 filing
Susie Yu
President, Secretary & Director
On filings since 2020
0.5 hrs/week
No compensation reported
Gideon Yu
Vice President, Treasurer & Director
Vice President & Treasurer → Vice President, Treasurer & Director, 2021
On filings since 2020
0.5 hrs/week
No compensation reported
Data from IRS Form 990 filings, 2020–2025. "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 Susie and Gideon Yu Foundation
How much does Susie and Gideon Yu Foundation give each year?
Susie and Gideon Yu Foundation gave $3.6M across 10 grants in 2025, according to its 2025 IRS Form 990-PF. In 2024 it gave $2.2M across 8 grants.
What is Susie and Gideon Yu Foundation's typical grant size?
Susie and Gideon Yu Foundation's median grant in 2025 was $100,000, and its average grant was $362,500, across 10 grants on its 2025 IRS Form 990-PF.
Where does Susie and Gideon Yu Foundation give grants?
Susie and Gideon Yu Foundation gives mostly in California: 95% of the grant dollars itemized on its 2025 IRS Form 990-PF went to recipients there. The most frequent recipient cities were Los Angeles, CA (3 grants) and Washington, DC (2 grants).
Does Susie and Gideon Yu Foundation give general operating support?
Yes: 20% of Susie and Gideon Yu Foundation's 2025 grants with a stated purpose (2 of 10) were for general or operating support, per its 2025 IRS Form 990-PF.
Who are Susie and Gideon Yu Foundation's largest grantees?
Susie and Gideon Yu Foundation's largest 2025 grantees include Monterey Bay Aquarium Foundation ($1,500,000), California Institute of Technology ($1,250,000) and Bel Air Presbyterian Church ($300,000 across 2 grants), according to its 2025 IRS Form 990-PF. Together they received 84% of its itemized 2025 grant dollars.
How large is Susie and Gideon Yu Foundation?
Susie and Gideon Yu Foundation reported $36.3M in total assets on its 2025 IRS Form 990-PF. It paid out $3.7M in qualifying distributions that year, against a required minimum of $1.8M (roughly 5% of its investment assets).
What is Susie and Gideon Yu Foundation's EIN?
Susie and Gideon Yu Foundation's EIN (Employer Identification Number) is 26-1118316. IRS Form 990 filing data is available on this page for 2020–2025.
Data last updated November 2026. Sourced from IRS Form 990-PF filings.
Data update history
(2)
When this profile's IRS filing data changed on Grantable
- Added Form 990-PF for fiscal year 2025 (received by the IRS September 20, 2026)
- IRS filings on file for fiscal years 2020–2024
Live grants for the work Susie and Gideon Yu Foundation funds
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