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California · 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.

$37k
Granted FY2025(still arriving)
17
Grants FY2025
15
Organizations funded FY2024
13%
First-time grantees FY2024
Read the full brief
Median grant, FY2025
$1,500
Largest grant, FY2025
$10,000
Organizations funded a year
6 to 28
FY2018 to FY2024
States reached, FY2025
7
Total assets, FY2025
$1.6M
Applications
Preselected organizations only
Per its most recent filing; check its own site

How open it is to new grantees

In FY2024, 13% of the organizations The Siegel Family Foundation funded were first-time grantees, receiving 9% of its grant dollars.

New vs renewed · share of each year

In FY2024, 91% of grant dollars renewed an existing relationship; $3k went to new ones.

50%100%’19’20’21’22’23’24
RenewedFirst-time

Where new relationships form · theme of each grantee’s first grant

’19’20’21’22’23’24
EnvironmentInternationalYouth DevelopmentRecreation & SportsHealthArts & CultureOther
How this is measured
First-time means a grantee’s first year in the filing window; renewed means funded in an earlier year too. The renewed share climbs naturally as a portfolio matures, so the signal is a year that bucks it (a wave of new grantees). The earliest year is left-censored: relationships that predate the data read as new. Theme is the grantee’s IRS cause.
The numbers by year
Fiscal yearOrganizations fundedTo those organizationsFirst-time grantees
FY2025still arriving16$35k31%
FY202415$29k13%
FY202316$66k6%
FY202222$109k23%
FY202121$141k14%
FY202028$48k29%
FY201924$59k79%
FY20186$20kn/a
97% classified

What it funded, over time

Every grant placed by its stated purpose and the recipient’s mission, by year, FY2018 to 2024.

Education$285kInternational$73kHuman Services$49kPhilanthropy$27kFood & Nutrition$23kEnvironment$18kHealth$18kReligion$13kOther$0

Where its grants go

Grant dollars by states, across the years we hold.

Which US states its grants reach

VT
NY
CA
CO
KY
MD
DC
FL

Top grantees

Largest recipients by total granted, FY2018 to FY2025, and the share of each one’s budget the grants supplied at peak.

Show all 24 grantees

What it could do for these grantees

Plus 25 recipients with no EIN on record ($175k), not named here.

Where it is load-bearing

Each grantee by its size and the share of its budget The Siegel Family Foundation supplied at peak.

25%50%75%100%$10M$100Mgrantee revenue →↑ funder's share of their budgetUc Law Sf Foundation: $164,500 over 5y, 2.0% of budgetLion Global Foundation: $70,000 over 7y, 0.3% of budgetShelburne Farms: $16,000 over 7y, 0.0% of budgetFood Bank for Monterey County: $12,500 over 7y, 0.0% of budgetMEND - Meet Each Need With Dignity: $8,000 over 7y, 0.0% of budgetMedecins Sans Frontieres USA Inc: $7,500 over 7y, 0.0% of budgetUnited States Association for UNHCR: $7,500 over 7y, 0.0% of budgetBig Sur Land Trust: $5,500 over 6y, 0.0% of budgetRancho Cielo Inc: $4,000 over 5y, 0.0% of budgetSpecial Olympics Northern California Inc: $3,500 over 6y, 0.0% of budgetYosemite Foundation: $3,500 over 3y, 0.0% of budgetThe University of Florida Foundation Inc: $3,050 over 2y, 0.0% of budgetPublic Counsel: $3,000 over 1y, 0.0% of budgetLiving Desert The: $2,000 over 3y, 0.0% of budgetBoys & Girls Clubs of Monterey County: $2,000 over 2y, 0.0% of budgetSanta Lucia Conservancy: $1,500 over 1y, 0.1% of budgetCancer League of Colorado Inc: $1,000 over 1y, 0.1% of budgetBrightfocus Foundation: $1,000 over 1y, 0.0% of budgetNational Park Foundation: $1,000 over 1y, 0.0% of budgetAlliance for Children's Rights: $1,000 over 1y, 0.0% of budgetSierra Club: $175 over 1y, 0.0% of budgetCenter for Science in the Public Interest: $50 over 1y, 0.0% of budget

Tap a dot to name the grantee.

How this is measured
Share of budget is the funder’s grant in a year over the grantee’s total revenue that year, at its highest across the years we hold; revenue is from all sources. Only grantees confirmed against their own filings, whose grants do not exceed their revenue, are plotted: the largest 22.

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.

American Endowment FoundationOH13.6× affinity7 shared granteesties to 11 of 11Hover any node to trace its alignments.Compare side by side →

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
Affinity is a Gamma-Poisson posterior co-funding rate, re-centered on the typical rate, so thin evidence shrinks toward no signal. Overlap is association, not proof of shared intent.

Compare The Siegel Family Foundation with peer funders

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.

About The Siegel Family Foundation

How much does The Siegel Family Foundation give?
The Siegel Family Foundation reported 17 grants totaling $37,000 in its FY2025 IRS filing. It funded between 6 and 28 organizations a year over FY2018 to FY2024.
What does The Siegel Family Foundation fund?
By grant dollars over FY2018 to FY2025, its largest causes are Education (54%), International (14%), Human Services (9%).
Who are The Siegel Family Foundation's largest grantees?
By total granted over FY2018 to FY2025: Uc Law Sf Foundation ($165k), Lion Global Foundation ($70k), Shelburne Farms ($16k).
Does The Siegel Family Foundation fund new organizations?
In FY2024, 13% of the organizations it funded were first-time grantees.
Does The Siegel Family 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 Siegel Family Foundation?
Its strongest co-funders, measured against what their size predicts, include American Endowment Foundation, Arizona Community Foundation, The San Francisco Foundation.
Where is The Siegel Family Foundation based?
The Siegel Family Foundation is based in CA.

On method. Every financial figure here is read from IRS e-file XML, the funder’s own 990/990-PF, and from the multi-year returns of the 50 grantees we resolved, each linked to its source. Grantee outcomes are each organization’s own program-service reporting (Form 990, Part III), read as association with funding, never as caused by it. Low-confidence name matches are suppressed rather than guessed. How we build these →

How this is measured
Each figure carries one of six labels. Filed is what the funder reported on its return. Official is another government record about an organization, such as a federal award or a charity register, joined by name where no shared identifier exists. Resolved is an identity we worked out where the filing named a recipient without an EIN, kept only above a measured confidence threshold. Computed is arithmetic over those, like themes, portfolio clusters and co-funder strength. Context is a statistic about a place rather than about an organization, which is what the need overlay is: it describes the area a grantee’s address sits in, not where its work lands. Inferred is drawn by a model from text, like the partnerships read out of public news and organization websites. Each is labeled where it appears.

Generated from the IRS Form 990-PF e-file return for fiscal year 2025, released 2025. Filings run roughly 12 to 24 months behind; figures are dated accordingly.

Source object · view filing

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