South Lake Foundation
South Lake Foundation is a private foundation, based in Mountain View, CA. IRS filing data is available from 2024 through 2025. As of 2025, the organization holds $677K in total assets. In 2025, it awarded 8 grants totaling $28K. Net investment income was $18K.
South Lake Foundation at a glance
In short: South Lake Foundation gave $28K across 8 grants in 2025 (avg $3K), mostly in California. Source: 2025 IRS Form 990-PF.
- Annual giving (2025)
- $27,500
- +96.4% vs 2024
- Grants made (2025)
- 8
- -27.3% vs 2024
- Average grant
- $3,438
- +170.1% vs 2024
- Median grant
- $1,750
- Total assets
- $677,197
- +121.1% vs 2024
- Primary geography
- California (85% of itemized 2025 grant dollars)
- Latest 990 filing
- Form 990-PF, 2025 View filing
Data from IRS Form 990-PF, 2025; updated September 2026.
Who South Lake Foundation funds
How this funder distributes its grants
Top Recipients
Top 8 recipients in 2025
The largest 2025 recipient was Panorama Institute of Molecular Med ($15K). Together the top 8 received $28K.
Grant Size Distribution
19 grants across all recorded years
The most common grant size was under $50K: 19 grants of 19 (100%).
Geographic Focus
Where this funder awards grants
Grant Distribution by State
Share of 2025 grant dollars across all 8 itemized grants.
States
Cities
How South Lake Foundation gives
- In 2025 it paid out 173% 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 2024 to 2025, annual grant giving ranged from $14K (2024) to $28K (2025). In 2025 it made 8 grants totaling $28K.
Grants by year
Grant recipients and amounts by year
| Recipient | Purpose | Amount |
|---|---|---|
| Panorama Institute of Molecular Med Sunnyvale, CA | Charitable Contribution | $15,000 |
| Atlantic Institute of Oriental Medi Fort Lauderdale, FL | Charitable Contribution | $4,000 |
| Chinese Musicians Association of America Santa Clara, CA | Charitable Contribution | $2,000 |
| Mountain View Los Altos High School Foun Los Altos, CA | Charitable Contribution | $2,000 |
| Western Ballet Company and School Mountain View, CA | Charitable Contribution | $1,500 |
| Humane Society Silicon Valley Milpitas, CA | Charitable Contribution | $1,000 |
| San Jose Ballet Association Mountain View, CA | Charitable Contribution | $1,000 |
| San Francisco Zoological Society San Francisco, CA | Charitable Contribution | $1,000 |
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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 | $677,197 | $368,392 | $30,677 | $27,500 | 8 | $30,425 | $18,140 | $17,553 |
| 2024 | $306,266 | $313,249 | $18,487 | $14,000 | 11 | $18,305 | $13,067 | $13,620 |
Under IRS private-foundation payout rules, South Lake Foundation reported a distributable amount of $18K for 2025 — the minimum it must pay out in qualifying distributions.
Leadership & Key People
Officers and directors from IRS filings
South Lake Foundation is led by Bo Yu, CEO on every filing since 2024; none of the 2 officers listed in 2025 report compensation.
Officers on the 2025 filing
Bo Yu
CEO
On filings since 2024
2 hrs/week
No compensation reported
Ying Mei
CFO & Secretary
On filings since 2024
2 hrs/week
No compensation reported
Data from IRS Form 990 filings, 2024–2025. "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 South Lake Foundation
How much does South Lake Foundation give each year?
South Lake Foundation gave $28K across 8 grants in 2025, according to its 2025 IRS Form 990-PF. In 2024 it gave $14K across 11 grants.
What is South Lake Foundation's typical grant size?
South Lake Foundation's median grant in 2025 was $1,750, and its average grant was $3,438, across 8 grants on its 2025 IRS Form 990-PF.
Where does South Lake Foundation give grants?
South Lake Foundation gives mostly in California: 85% of the grant dollars itemized on its 2025 IRS Form 990-PF went to recipients there. The next largest state was Florida (15%). The most frequent recipient cities were Mountain View, CA (2 grants).
Who are South Lake Foundation's largest grantees?
South Lake Foundation's largest 2025 grantees include Panorama Institute of Molecular Med ($15,000), Atlantic Institute of Oriental Medi ($4,000) and Chinese Musicians Association of America ($2,000), according to its 2025 IRS Form 990-PF. Together they received 76% of its itemized 2025 grant dollars.
How large is South Lake Foundation?
South Lake Foundation reported $677K in total assets on its 2025 IRS Form 990-PF. It paid out $30K in qualifying distributions that year, against a required minimum of $18K (roughly 5% of its investment assets).
What is South Lake Foundation's EIN?
South Lake Foundation's EIN (Employer Identification Number) is 93-4699910. IRS Form 990 filing data is available on this page for 2024–2025.
Data last updated September 2026. Sourced from IRS Form 990-PF filings.
Data update history
(3)
When this profile's IRS filing data changed on Grantable
- Updated Form 990-PF for fiscal year 2024 (received by the IRS February 13, 2025)
- Updated Form 990-PF for fiscal year 2025 (received by the IRS February 23, 2026)
- IRS filings on file for fiscal years 2024–2025
Live grants for the work South Lake Foundation funds
Philanthropy, Voluntarism & Grantmaking Open opportunities, soonest deadline first.
- Nixa Affiliate Grantmaking Program Up to US $10,000 · Due October 19, 2026
- Community and School Grants $28,000 total pool; 10-15 grants expected · Due October 19, 2026
- Mary Pinola/Crescenta Valley Chamber Education Fund $500 - $5,000 for ongoing programs; up to $15,000 for Strategic Initiative Grants · Due October 19, 2026
Explore Open Grants
Browse active grant opportunities in South Lake Foundation's focus areas in our free grants database
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