· Private foundation
The Siegel Family 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.
What it funded, over time
Every grant placed by its stated purpose and the recipient’s mission, by year, FY2018 to 2024.
Where the money goes
Grants by size, and the largest recipients.
By grant size · FY2025
- Under $10k16 grants · $27k
- $10k–50k1 grant · $10k
| Recipient | Amount |
|---|---|
| MIZEL INSTITUTE | $10,000 |
| SHELBURNE FARMS | $5,000 |
| MAKE-A-WISH | $3,000 |
| PUBLIC COUNSEL | $3,000 |
| PRESERVE COMMUNITY FOUNDATION | $2,500 |
| LIBRARY FOUNDATION OF AUSTIN | $2,000 |
| FOOD BANK OF MONTEREY COUNTY | $2,000 |
| SHUMAN HEARTHOUSE | $1,500 |
| DOCTORS WITHOUT BORDERS | $1,500 |
| NRDC | $1,000 |
| NATIONAL PARK FOUNDATIONS | $1,000 |
| UNHCR | $1,000 |
| MEND | $1,000 |
| BOYS & GIRLS CLUBS OF MONTEREY COUNTY | $1,000 |
| AUDUBON SOCIETY | $500 |
Does the money reach high-need areas?
Each grant placed by the hardship in its grantee’s ZIP, against the area’s typical level.
Its human-services grants (FY19–25, $8k) land where the poverty rate runs at 14%, against an area that typically sits at 10%. 100% of those dollars go to grantees based in above-average-need neighborhoods. Most of its grants land in higher-need ZIPs.
How this is measured
Which US states its grants reach
How this is measured
Who it funds again
Organizations funded in more than one year, against those funded once.
Grantees it renews have grown median revenue +68% since the first grant, against +36% for those funded once.
28 repeat relationships: 11 still active in FY2025, 17 since wound down; 5 grantees were first funded in FY2025 (too recent to call).
How the two cohorts compare
Organizations
Total granted
Median revenue growth · since first grant
Still filing today
New vs renewed · share of each year
In FY2025, 77% 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
Backed again, and grew
- ULUC LAW SF FOUNDATION5× · 2018–2022 · $165k · revenue +56%
- LGLION GLOBAL FOUNDATION7× · 2019–2025 · $70k · revenue +22%
SHELBURNE FARMS7× · 2019–2025 · $16k · revenue +50%
Funded once
- ACAMEN CENTERone grant, 2023 · $13k
- C1CHP 11-99 FOUNDATIONgraduatedone grant, 2018 · $7k · revenue +36%
- UOUNIVERSITY OF KENTUCKYone grant, 2019 · $5k
How this is measured
Repeat means funded in two or more distinct years. Growth and survival are read from each grantee’s own subsequent IRS filings.
Closest unfunded matches
The nonprofits that most resemble its grantees but are not funded by it, scored along the direction from the rest of the field toward the portfolio. A resemblance in what they say they do, not a recommendation.
The union of concerned scientists puts rigorous, independent science into action, developing solutions and advocating for a healthy, safe, and just future.
The Chile-California Council is a San Francisco-based nonprofit dedicated to developing and promoting joint endeavors and cooperative relations between Chile and California, as well as individuals, legal entities and other institutions in…
Wwf's mission is to conserve nature and reduce the most pressing threats to the diversity of life on earth. (continued on schedule o)
To ensure coast redwood forests in the santa cruz mountains thrive for generations to come. since 1900, sempervirens has protected more than 36,000 acres. learn more about our mission, vision, and strategic plan through 2030 at:…
Perc is dedicated to advancing conservation through markets, incentives, property rights, and partnerships.
Ci works to spotlight and secure the critical benefits that nature provides to humanity.
Nature collective's mission is to drive a passion for nature for all. we think inclusively and diversely when serving those devoid of nature those who remember nature and want to connect back to it and those who have an affinity with…
Through management of oakland zoo, the conservation society of california deepens connection with animals, saves wildlife, and inspires champions for the natural world.
To engage and catalyze global seafood supply chains in rebuilding depleted fish stocks and reducing the environmental impacts of fishing and fish farming.
Sustainable Conservation advances the collaborative stewardship of Californias land, air, and water for the benefit of nature and people. For over three decades, Sustainable Conservation has built coalitions of people with different…
Ocean conservancy unites science, people, and policy to protect our ocean, today and for generations to come.
The resource renewal institute facilitates the creation, development and implementation of practical strategies to solve the entire complex environmental problem by addressing it comprehensively.
How this is measured
25 grantees tracked through their own filings, 2017–2026.
Each grant beside the grantee’s revenue from every source, year by year.
How this is measured
Counted here: distinct organizations funded across 2017 to 2026, not grant rows in a single year, so this will not match the grant count on the cover. 25 of the 50 grantees resolved in that span have returns of their own we could reconcile.
Each grantee is resolved to its own IRS returns. Association, dated; never a causal claim.
Where the money sits, by cause and then by grantee
Each grantee by its size and the funder’s share of it; top left is load-bearing
Grantee by grantee: a decade per organization, before and after funding
A decade per grantee: revenue shaded, grants as bars, all rows on one timeline.
- Who funds UC LAW SF FOUNDATION ↗
- Who funds LION GLOBAL FOUNDATION ↗
- Who funds PRESERVE COMMUNITY FOUNDATION ↗
- Who funds SHELBURNE FARMS ↗
- Who funds FOOD BANK FOR MONTEREY COUNTY ↗
- Who funds MEND - Meet Each Need With Dignity ↗
- Who funds MEDECINS SANS FRONTIERES USA INC ↗
- Who funds United States Association for UNHCR ↗
- Who funds CHP 11-99 FOUNDATION ↗
- Who funds Big Sur Land Trust ↗
- Who funds GREAT PLAINS CONSERVATION FOUNDATION ↗
- Who funds RANCHO CIELO INC ↗
- Who funds SPECIAL OLYMPICS NORTHERN CALIFORNIA INC ↗
- Who funds YOSEMITE FOUNDATION ↗
- Who funds THE UNIVERSITY OF FLORIDA FOUNDATION INC ↗
- Who funds PUBLIC COUNSEL ↗
- Who funds LIVING DESERT THE ↗
- Who funds Boys & Girls Clubs of Monterey County ↗
- Who funds SANTA LUCIA CONSERVANCY ↗
- Who funds CANCER LEAGUE OF COLORADO INC ↗
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: American Endowment Foundation · Arizona Community Foundation · The San Francisco Foundation · Morgan Stanley Global Impact Funding Trust Inc · Gs Donor Advised Philanthropy Fund for Wealth Management Inc · National Philanthropic Trust · The Bank of America Charitable Foundation Inc · Vanguard Charitable Endowment Program · Donor Advised Charitable Giving Inc · American Online Giving Foundation Inc · Fidelity Investments Charitable Gift Fund · Amazonsmile Foundation
How this is measured
How much its grantees rely on government
Each dot is one organization The Siegel Family Foundation funds: left to right is the share of its income from government, bottom to top the share from The Siegel Family Foundation. Bigger dots raise more.
- Shelburne Farms: 3% of income from government
How this is measured
Warm introductions · Powered by PlinthPlus
How do I get to The Siegel Family Foundation?
Find your warmest path to The Siegel Family Foundation through trustees and officers whose names appear on both boards. Search for your organization and Plinth traces the shortest route it can evidence.
Each link is a name appearing on two organizations’ public IRS 990 filings, matched on that name and, where the filings support it, on location. A same-state match has geographic support, which is a second matching feature rather than confirmation that the two are one person; a cross-state one is the likeliest to be two people who share a name. Every hop shows its tier, low-confidence and distant paths are held back rather than guessed, and it is worth confirming the person before you use the introduction.
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