California · Private foundation
The Zaffaroni Foundation
Its FY2025 filing reports that it funds preselected organizations and did not take unsolicited requests; check the foundation's own site before ruling it out.
- $187k
- Granted FY2019
- 9
- Grants FY2019
- 9
- Organizations funded FY2019
- 33%
- First-time grantees FY2019
Read this first · the figures below need context
63% of The Zaffaroni Foundation’s FY2025 grant dollars went to The Board Of Trustees Of The Leland Stanford Junior University, not to grantees.
Its money now reaches organizations through that sponsor, which does not report who recommended each grant. FY2025 names 3 organizations directly, so a portfolio cannot be read from it. Everything below is therefore FY2019, the last year The Zaffaroni Foundation named its own grantees at scale: 6 organizations, $187k. It is dated, not current.
Organizations named directly on the return
Amber years are those where most dollars went to a sponsor.
- Median grant, FY2019
- $2,500
- Largest grant, FY2019
- $100,000
- Organizations funded a year
- 6 to 9
- FY2017 to FY2019
- States reached, FY2019
- 2
- Total assets, FY2019
- $2.7M
- Applications
- Preselected organizations only
- Per its most recent filing; check its own site
How open it is to new grantees
In FY2019, 33% of the organizations The Zaffaroni Foundation funded were first-time grantees, receiving 4% of its grant dollars.
New vs renewed · share of each year
In FY2019, 96% of grant dollars renewed an existing relationship; $8k went to new ones.
Where new relationships form · theme of each grantee’s first grant
How this is measured
The numbers by year
| Fiscal year | Organizations funded | To those organizations | First-time grantees |
|---|---|---|---|
| FY2019 | 9 | $187k | 33% |
| FY2018 | 8 | $165k | 38% |
| FY2017 | 6 | $163k | n/a |
What it funded, over time
Every grant placed by its stated purpose and the recipient’s mission, by year, FY2017 to 2024.
Top grantees
Largest recipients by total granted, FY2017 to FY2025, and the share of each one’s budget the grants supplied at peak.
| Grantee | Total granted | Years | Share of their budget |
|---|---|---|---|
| Boys & Girls Clubs of the Peninsula | $1,131,000 | 8 | 1% |
| San Francisco Opera Association | $45,000 | 3 | 0% |
| Peninsula Open Space Trust | $30,000 | 3 | 0% |
| Asante Foundation | $25,000 | 1 | 0% |
| Ashland Parks Foundation | $22,000 | 5 | 2% |
| Peace House | $12,000 | 2 | 3% |
| California Fire Foundation | $10,000 | 1 | 0% |
| Menlo Charity Horse Show Inc | $7,500 | 3 | 1% |
| Geohazards International | $5,000 | 1 | 1% |
| 10000 Degrees | $3,000 | 2 | 0% |
Show all 12 grantees
| Grantee | Total granted | Years | Share of their budget |
|---|---|---|---|
| Boys & Girls Clubs of the Peninsula | $1,131,000 | 8 | 1% |
| San Francisco Opera Association | $45,000 | 3 | 0% |
| Peninsula Open Space Trust | $30,000 | 3 | 0% |
| Asante Foundation | $25,000 | 1 | 0% |
| Ashland Parks Foundation | $22,000 | 5 | 2% |
| Peace House | $12,000 | 2 | 3% |
| California Fire Foundation | $10,000 | 1 | 0% |
| Menlo Charity Horse Show Inc | $7,500 | 3 | 1% |
| Geohazards International | $5,000 | 1 | 1% |
| 10000 Degrees | $3,000 | 2 | 0% |
| Peninsula Humane Society & Spca | $2,500 | 1 | 0% |
| From Hiroshima to Hope | $2,000 | 1 | n/a |
Plus 11 recipients with no EIN on record ($410k), not named here.
Where it is load-bearing
Each grantee by its size and the share of its budget The Zaffaroni Foundation supplied at peak.
Tap a dot to name the grantee.
How this is measured
Co-funders
Grantmakers whose grantees overlap with this funder’s far more than size alone predicts. Closer means stronger alignment; arcs show where they also fund each other. Here they form a tightly interlocked group: most of these funders back each other's grantees too.
Open a dossier: Vanguard Charitable Endowment Program · Donor Advised Charitable Giving Inc · Fidelity Investments Charitable Gift Fund
How this is measured
About The Zaffaroni Foundation
- How much does The Zaffaroni Foundation give?
- The Zaffaroni Foundation reported 9 grants totaling $187,000 in its FY2019 IRS filing. It funded between 6 and 9 organizations a year over FY2017 to FY2019.
- What does The Zaffaroni Foundation fund?
- By grant dollars over FY2017 to FY2025, its largest causes are Youth Development (66%), Environment (13%), Science & Tech (6%).
- Who are The Zaffaroni Foundation's largest grantees?
- By total granted over FY2017 to FY2025: Boys & Girls Clubs of the Peninsula ($1.1M), San Francisco Opera Association ($45k), Peninsula Open Space Trust ($30k).
- Does The Zaffaroni Foundation fund new organizations?
- In FY2019, 33% of the organizations it funded were first-time grantees.
- Does The Zaffaroni Foundation accept unsolicited applications?
- Its most recent filing reports that it funds preselected organizations and does not take unsolicited requests. Check the foundation's own site before ruling it out.
- Which funders back the same organizations as The Zaffaroni Foundation?
- Its strongest co-funders, measured against what their size predicts, include Vanguard Charitable Endowment Program, Donor Advised Charitable Giving Inc, Fidelity Investments Charitable Gift Fund.
- Where is The Zaffaroni Foundation based?
- The Zaffaroni Foundation is based in CA.
Play a game based on Zaffaroni’s filings →