C-Sil
Invitation OnlySan Jose, California · EIN 30-0452863 · Private foundation
Half of its grants to organizations were between $10,000 and $48,000.
Funders like this one, matched to your nonprofit
It made more grants in California than in any other state, and Education is its most common cause. The free match starts from those. Set your own state and causes to see which of thousands of foundations fit you best.
How to apply
On its return for tax year 2024 the foundation checked the box saying it only makes contributions to preselected charitable organizations and does not accept unsolicited requests for funds.
What it funds
Share of grant lines on the latest return, classified from the purpose each grant states.
Where it gives
40% of grants went outside California.
Where it gives most, by cause
Its largest causes in a single state on the latest return. Each page shows the leading foundations that fund the same cause there, with their largest grants.
- Education grants in California2 of its grants, $11K · 7,943 foundations
- Education grants in New York1 of its grant, $20K · 8,776 foundations
- Environment grants in California1 of its grant, $1,000 · 2,750 foundations
Grants paid in tax year 2024
| Recipient | Location | 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 |
Giving by year
| Tax year | Grants paid | Grant lines |
|---|---|---|
| 2024 | $129,000 | 5 |
| 2023 | $54,990 | 5 |
| 2022 | $36,200 | 4 |
Sources
- IRS Form 990-PF, tax year 2024, filed Apr 15, 2026 - IRS e-file batch, object ID 202611059349100841
- IRS Tax Exempt Organization Search for EIN 30-0452863
- Profile updated Nov 10, 2026 · Report a mistake
Facts on this page come from the foundation's own IRS Form 990-PF filings as published by the IRS. Grantvello does not know whether a foundation is accepting proposals right now: a past grant is not an open opportunity. Always confirm current guidelines with the funder before applying.
Something wrong or missing on this page?
We keep only what you write, the page address and the time - no IP address, no account. Please do not include personal details. Privacy
Your message could not be sent. Please try again later.
Thank you - we read every message.