C-Sil is a nonprofit organization focused on Philanthropy, Voluntarism & Grantmaking, based in San Jose, CA. IRS filing data is available from 2021 through 2025. In 2025, it awarded 5 grants totaling $129K.
Key facts about C-Sil
- EIN
- 30-0452863
- Latest 990 filing
- Form 990-PF, 2025
- Annual giving (2025)
- $129,000
- Grants made (2025)
- 5
- Average grant
- $25,800
- Median grant
- $20,000
- Primary geography
- New York (54% of itemized 2025 grant dollars)
Data from IRS Form 990-PF, 2025; updated September 2026.
Who C-Sil funds
By grant dollars, the top recipient states for C-Sil's 5 itemized 2025 grants were New York (54%) and California (46%). None of its 5 grants with a stated purpose were described as general or operating support.
How C-Sil gives
- Giving grew 866% from 2022 to 2025. Method
From the foundation's IRS Form 990-PF filings. Methodology.
Next steps with C-Sil
- How to evaluate C-Sil as a funder
Our grant prospecting guide: read the 990-PF, check fit, and decide whether to apply.
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Financial Overview
From 2025 IRS Form 990-PF · View filing
Total Assets
—
Annual Giving
$129K
+134.6% YoY
Grant Count
5
+0.0% YoY
Avg Grant Size
$26K
+134.6% YoY
About C-Sil
Based on IRS filings
C-Sil is a nonprofit organization focused on Philanthropy, Voluntarism & Grantmaking, based in San Jose, CA. IRS filing data is available from 2021 through 2025. In 2025, it awarded 5 grants totaling $129K.
Focus Areas
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Geographic Focus
Where this funder awards grants
Grant Distribution by State
Share of all 5 itemized 2025 grant dollars.
States
Cities
Financial History
Multi-year comparison from IRS filings
| Metric | 2025 | 2024 | 2023 |
|---|---|---|---|
| Total Assets | — | — | — |
| Revenue | — | — | — |
| Expenses | — | — | — |
| Qualifying Distributions | — | — | — |
| Net Investment Income | — | — | — |
| Distributable Amount | — | — | — |
Data update history
When this profile's IRS filing data changed on Grantable
- IRS filings on file for fiscal years 2021–2025
Giving Over Time
Total grant dollars and number of grants per year
Grant Insights
How this funder distributes its grants
Top Recipients
Top 5 recipients in 2025
Grant Size Distribution
21 grants across all recorded years
Giving History
Grant recipients and amounts by year
Among its reported 2025 grants, the largest recipients include Cancer Research Institute (EIN 13-1837442) ($50,000), Buddist Tzu Chi Foundation (EIN 94-2952782) ($48,000), Cornell University (EIN 15-0532082) ($20,000).
| Recipient | Purpose | Amount |
|---|---|---|
| Cancer Research Institute (EIN 13-1837442) New York, NY | Scientific research | $50,000 |
| Buddist Tzu Chi Foundation (EIN 94-2952782) San Jose, CA | Diaster relief & community aide | $48,000 |
| Cornell University (EIN 15-0532082) Ithaca, NY | Education & research | $20,000 |
| UCSF Foundation MAC Fund B1871 (EIN 94-2829914) San Francisco, CA | Education & research | $10,000 |
| Monterey Bay Aquarium (EIN 94-2487469) Monterey, CA | Education & conservation | $1,000 |
Leadership & Key People
Officers and directors from IRS filings
Compensation Overview
No officer or director reported compensation in the available filings.
From 2025 IRS filing
| Name | Title | Hours | Compensation |
|---|---|---|---|
| Steve Chiou | CEO | 2.8 | — |
| Lai Ling Chiou | SFO & Secretary | 0.5 | — |
Subject Areas
Focus areas based on grantmaking activity
Frequently Asked Questions
What is C-Sil?
C-Sil is a nonprofit organization focused on Philanthropy, Voluntarism & Grantmaking, based in San Jose, CA. It holds — in total assets as of 2025.
Where does C-Sil operate?
C-Sil has awarded grants in California, New York.
What size grants does C-Sil award?
In 2025, C-Sil awarded 5 grants totaling $129K — an average of about $26K per grant, based on its IRS Form 990 filings.
What is C-Sil's EIN?
C-Sil's EIN (Employer Identification Number) is 30-0452863. IRS Form 990 filing data is available on this page for 2021–2025.
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Data last updated September 2026. Sourced from IRS Form 990-PF filings.