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The Weill Family Foundation at a glanceAlso receives grants: funding profile →

· Private foundation

The Weill Family Foundation

Its FY2024 filing reports that it funds preselected organizations and did not take unsolicited requests; check the foundation's own site before ruling it out.

$18M
Granted FY2024still arriving
20
Grants FY2024still arriving
7
States reached
$9.7M
Largest
01What it fundsRead
02The needRead
03Its granteesRead
04Its fieldRead
05Through PlinthRead
01What it funds
0198% classified

What it funded, over time

Every grant placed by its stated purpose and the recipient’s mission, by year, FY2017 to 2024.

Health$43MEducation$41MArts & Culture$10MPhilanthropy$4.1MReligion$850kScience & Tech$478kFood & Nutrition$245kInternational$240kOther$0
02FY2024 · 20 grants

Where the money goes

Grants by size, and the largest recipients.

By grant size · FY2024

  • Under $10k4 grants · $20k
  • $10k–50k3 grants · $60k
  • $50k–250k8 grants · $600k
  • $250k+5 grants · $17M
$50,000
Median grant
7
States reached
$390M
Total assets
Largest grants
RecipientAmount
UNIVERSITY OF CALIFORNIA SAN FRANCISCO FOUNDATION$9,653,607
UNIVERSITY OF CALIFORNIA BERKELEY FOUNDATION$3,753,607
UC DAVIS FOUNDATION$2,500,000
NAF$800,000
NEW YORK HISTORICAL SOCIETY$250,000
CHABAD OF SONOMA COUNTY$150,000
ALVIN AILEY DANCE FOUNDATION INC$125,000
THE CARNEGIE HALL CORPORATION$75,000
LANG LANG INTERNATIONAL MUSIC FOUNDATION INC$50,000
LEUKEMIA & LYMPHOMA SOCIETY$50,000
CORNELL university$50,000
AMERICAN CONSERVATORY THEATRE FOUNDATION$50,000
UNIVERSITY OF CHICAGO$50,000
YALE UNIVERSITY$25,000
COUNCIL ON FOREIGN RELATIONS$25,000
02The need
03

Does the money reach high-need areas?

Each grant placed by the hardship in its grantee’s ZIP, against the area’s typical level.

show:

Its human-services grants (FY17–23, $70k) land where the poverty rate runs at 10%, against an area that typically sits at 10%. 14% of those dollars go to grantees based in above-average-need neighborhoods. Its grants skew toward lower-need ZIPs.

area typical 10%ANNIECANNONS INC: $10k → 10%SAFEHOUSE DENVER: $10k → 12%INDIVIDUALS NOW INC SOCIAL ADVOCATES FOR YOUTH: $25k → 9%INDIVIDUALS NOW INC SOCIAL ADVOCATES FOR YOUTH: $25k → 9%0%20%40%50%more need →
grant to an above-average-need area below average· circle size = grant amount
How this is measured
Matched: human-services grants are those whose grantee’s IRS cause code is Human Services. Placed by people below the poverty line in the grantee’s ZIP, averaged from the tracts in that ZIP.

Which US states its grants reach

IL
MI
NY
MA
NJ
CT
CA
CO
VA
DC
AL
GA
FL
How this is measured
US grants placed by each grantee’s ZIP, which can differ from where services are delivered. Need from public data (U.S. Census/ACS, CDC PLACES, Eviction Lab, USDA), shown as context about the area, never attributed to the funder’s giving.
03Its grantees
repeat funding

Who it funds again

Organizations funded in more than one year, against those funded once.

95%of every dollar goes to organizations it has funded before.
$96M · 16 repeat orgs$5.5M to everyone else

Grantees it renews have grown median revenue +21% since the first grant, against +2% for those funded once.

16 repeat relationships: 11 still active in FY2024, 5 since wound down; 8 grantees were first funded in FY2024 (too recent to call).

How the two cohorts compare

Re-uppedFunded once

Organizations

16
24

Total granted

$96M
$2.6M

Median revenue growth · since first grant

+21%
+2%

Still filing today

81%
79%

New vs renewed · share of each year

In FY2024, 83% of grant dollars renewed an existing relationship; $2.9M went to new ones.

50%100%’17’18’19’20’21’22’23’24
RenewedFirst-time

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

’17’18’19’20’21’22’23’24
InternationalArts & CultureHealthEducationHuman ServicesEnvironmentOther
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.

Backed again, and grew

  • Cornell University
    3× · 2019–2024 · $23M · revenue +50%
  • TC
    THE CARNEGIE HALL CORPORATION
    5× · 2017–2024 · $8.2M · revenue +176%
  • AA
    ALVIN AILEY DANCE FOUNDATION INC
    5× · 2017–2024 · $550k · revenue +32%

Funded once

  • TE
    TEMPLE EMANUEL OF GREAT NECK
    one grant, 2019 · $600k
  • TH
    The Hebrew Home for Aged at Riverdale
    one grant, 2022 · $500k · revenue -5%
  • UO
    UNIVERSITY OF CALIFORNIA DAVIS
    one grant, 2019 · $500k
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.

04Its field

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.

1
Massachusetts Institute of Technology

The mission of mit is to advance knowledge and educate students in science, technology, and other areas of scholarship that will best serve the nation and the world in the 21st century.

Education
2
United States Naval Institute

Provide an independent forum for those who dare to read, think, speak, and write to advance the professional, literary, and scientific understanding of sea power and other issues critical to global security.

—
3
American Association for the Advancement of Science

Advance science, engineering, and innovation throughout the world for the benefit of all. the world's largest multidisciplinary scientific society and a leading publisher of cutting-edge research through its science family of journals,…

Science & Tech
4
The Union of Concerned Scientists Inc

The union of concerned scientists puts rigorous, independent science into action, developing solutions and advocating for a healthy, safe, and just future.

International
5
University of New Haven

The University of New Haven is a student-centered comprehensive university with an emphasis on excellence in liberal arts and professional education. Our mission is to prepare our students to lead purposeful and fulfilling lives in a…

Education
6
Stony Brook Urology University Faculty Practice Corporation

Provide clinical instruction to and supervision of medical school students, interns and residents and, incident thereto, rendering professional services.

Health
7
New York University

Nyu is a private university with approximately 60,000 matriculating students in 20 schools and institutes. nyu's primary missions are education, research and scholarship, and patient care.

Education
8
University Associates in Obstetrics and Gynecology University Faculty Pract ice Corporation

Provide clinical instruction to and supervision of medical school students, interns and residents and, incident thereto, rendering professional services.

Health
9
Stony Brook Internists University Faculty Practice Corporation

Provide clinical instruction to and supervision of medical school students, interns and residents and, incident thereto, rendering professional services.

Health
10
Ucla Foundation

The ucla foundation is the giving, receiving, and investing arm of the ucla campus. the foundation enables private donors to help build, sustain and advance one of the world's finest academic and research institutions. private philanthropy…

Education
11
New York Genome Center Inc

Operate a state-of-the-art, world-class genomic research center that creates and uses advanced genomics to understand the genetic basis of disease. for more information, see schedule o.

Health
12
Stony Brook Surgical Associates University Faculty Practice Corporation

Provide clinical instruction to and supervision of medical school students, interns and residents and, incident thereto, rendering professional services.

Health
How this is measured
The grantee most central to the portfolio’s shape is Jewish Community Federation of San Francisco the Peninsula Marin & Sonoma; the most unlike its peers is Wing & Barrel Foundation. Resemblance is measured on each organization’s own IRS 990 mission text; it reflects how work is described, not its quality or impact.
04the grantee network

43 grantees tracked through their own filings, 2017–2025.

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 2025, not grant rows in a single year, so this will not match the grant count on the cover. 43 of the 51 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.

0
Load-bearing (≥25% of a budget)
3
Early backer (in before they grew)
42/43
Grantees still filing
24/43
Grew since first funded

Where the money sits, by cause and then by grantee

UNIVERSITY OF CALIFORNIA SAN FRANCISCO FOUNDATION: $38,659,152 · EducationUNIVERSITY OF CALIFORNIA SAN FRANCISCO FOUNDATIONCornell University: $23,163,859 · EducationCornell UniversityUNIVERSITY OF CALIFORNIA BERKELEY FOUNDATION: $13,753,607 · EducationUNIVERSITY OF CALIFORNIA BERKELEY FOUNDATION+3 more: $3,250,001 · EducationNAF: $6,098,710 · OtherNAFREGENTS OF THE UNIVERSITY OF MICHIGAN: $3,783,732 · OtherREGENTS OF T…TEMPLE EMANUEL OF GREAT NECK: $600,000 · OtherUNIVERSITY OF CALIFORNIA DAVIS: $500,000 · Other+16 more: $551,000 · OtherTHE CARNEGIE HALL CORPORATION: $8,206,239 · Arts & CultureTHE CARNEGI…LANG LANG INTERNATIONAL MUSIC FOUNDATION INC: $900,000 · Arts & CultureLANG LANG I…ALVIN AILEY DANCE FOUNDATION INC: $550,000 · Arts & CultureALVIN AILEY…+3 more: $400,000 · Arts & CultureThe Hebrew Home for Aged at Riverdale: $500,000 · HealthNEW YORK WEILL CORNELL MEDICAL CENTER FUND INC: $216,320 · HealthSONOMA VALLEY HOSPITAL FOUNDATION: $100,000 · HealthBLOOD CANCER UNITED INC: $50,000 · Health+2 more: $55,000 · HealthAMERICAN SOCIETY FOR TECHNION ISRAEL INSTITUTE OF TECHNOLOGY INC: $478,256 · InternationalCOUNCIL ON FOREIGN RELATIONS INC: $200,000 · International+6 more: $74,000 · InternationalCITYMEALS-ON-WHEELS: $240,000 · Food & Nutrition+1 more: $5,000 · Food & NutritionINDIVIDUALS NOW INC DBA SOCIAL ADVOCATES FOR YOUTH: $50,000 · Human ServicesAnnieCannons Inc: $10,000 · Human ServicesSAFEHOUSE DENVER INC: $10,000 · Human Services
Education$78,826,619Other$11,533,442Arts & Culture$10,056,239Health$921,320International$752,256Food & Nutrition$245,000Human Services$70,000

Each grantee by its size and the funder’s share of it; top left is load-bearing

25%50%75%100%$1.0M$10M$100Mgrantee revenue →↑ funder's share of their budgetUNIVERSITY OF CALIFORNIA SAN FRANCISCO FOUNDATION: $38,659,152 over 6y, 1.7% of budgetCornell University: $23,163,859 over 3y, 0.3% of budgetUNIVERSITY OF CALIFORNIA BERKELEY FOUNDATION: $13,753,607 over 3y, 0.9% of budgetTHE CARNEGIE HALL CORPORATION: $8,206,239 over 5y, 14% of budgetTHE UC DAVIS FOUNDATION: $2,500,000 over 1y, 2.8% of budgetLANG LANG INTERNATIONAL MUSIC FOUNDATION INC: $900,000 over 8y, 17% of budgetALVIN AILEY DANCE FOUNDATION INC: $550,000 over 5y, 0.3% of budgetThe Hebrew Home for Aged at Riverdale: $500,000 over 1y, 0.4% of budgetAMERICAN SOCIETY FOR TECHNION ISRAEL INSTITUTE OF TECHNOLOGY INC: $478,256 over 1y, 0.4% of budgetNew York Historical Society: $250,000 over 1y, 0.4% of budgetCITYMEALS-ON-WHEELS: $240,000 over 1y, 0.7% of budgetNEW YORK WEILL CORNELL MEDICAL CENTER FUND INC: $216,320 over 1y, 1.8% of budgetCOUNCIL ON FOREIGN RELATIONS INC: $200,000 over 7y, 0.1% of budgetSONOMA VALLEY HOSPITAL FOUNDATION: $100,000 over 1y, 5.5% of budgetTHE HISTORYMAKERS: $100,000 over 1y, 3.6% of budgetBLOOD CANCER UNITED INC: $50,000 over 1y, 0.0% of budgetINDIVIDUALS NOW INC DBA SOCIAL ADVOCATES FOR YOUTH: $50,000 over 2y, 0.4% of budgetUniversity of Chicago: $50,000 over 1y, 0.0% of budgetAMERICAN CONSERVATORY THEATRE FOUNDATION: $50,000 over 1y, 0.2% of budgetPROJECT SUNSHINE INC: $30,000 over 2y, 0.8% of budgetAMERICA-ISRAEL FRIENDSHIP LEAGUE INC: $25,000 over 1y, 1.7% of budgetRONALD MCDONALD HOUSE OF NEW YORK INC: $25,000 over 1y, 0.1% of budgetHOMES FOR OUR TROOPS INC: $20,000 over 2y, 0.0% of budgetPOINTS OF LIGHT FOUNDATION: $20,000 over 1y, 0.1% of budgetWORLD CENTRAL KITCHEN INC: $20,000 over 3y, 0.0% of budgetTHE CONSERVATION FUND A NONPROFIT CORPORATION: $15,000 over 2y, 0.0% of budgetAMERICAN FRIENDS OF THE RAMBAM MEDICAL CENTER: $10,000 over 1y, 0.2% of budgetAnnieCannons Inc: $10,000 over 1y, 0.5% of budgetSAFEHOUSE DENVER INC: $10,000 over 1y, 0.5% of budgetFAIR GIRLS INC: $10,000 over 1y, 0.7% of budgetJEWISH COMMUNITY FEDERATION OF SAN FRANCISCO THE PENINSULA MARIN & SONOMA: $10,000 over 1y, 0.0% of budgetCONSERVATION INTERNATIONAL FOUNDATION: $10,000 over 1y, 0.0% of budgetEQUAL JUSTICE INITIATIVE: $10,000 over 2y, 0.0% of budgetACDS INC: $5,000 over 1y, 0.0% of budgetCOLORADO COMMUNITY SHELTER PROVIDERS INC: $5,000 over 1y, 0.4% of budgetTHE CENTER FOR REPRODUCTIVE RIGHTS INC: $5,000 over 1y, 0.0% of budgetJEWISH AGENCY FOR ISRAEL - NORTH AMERICAN COUNCIL: $5,000 over 1y, 0.0% of budgetWING & BARREL FOUNDATION: $5,000 over 1y, 1.8% of budgetWORLD RESOURCES INSTITUTE: $4,000 over 1y, 0.0% of budgetWATERKEEPER ALLIANCE INC: $1,000 over 1y, 0.0% of budget
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.

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.

Gs Donor Advised Phil…American Endowment Fo…Morgan Stanley Global…National Philanthropi…The Chicago Community…Jpmorgan Chase Founda…The Bank of America C…Donor Advised Charita…Network for GoodAmerican Online Givin…Vanguard Charitable E…Fidelity Investments …
Gs Donor Advised Philanthropy Fund for Wealth Management IncNY12.3× affinity6 shared granteesties to 11 of 11Hover any node to trace its alignments.Compare side by side →

Open a dossier: Gs Donor Advised Philanthropy Fund for Wealth Management Inc · American Endowment Foundation · Morgan Stanley Global Impact Funding Trust Inc · National Philanthropic Trust · The Chicago Community Trust · Jpmorgan Chase Foundation · The Bank of America Charitable Foundation Inc · Donor Advised Charitable Giving Inc · Network for Good · American Online Giving Foundation Inc · Vanguard Charitable Endowment Program · Fidelity Investments Charitable Gift Fund

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.

How much its grantees rely on government

Each dot is one organization The Weill Family Foundation funds: left to right is the share of its income from government, bottom to top the share from The Weill Family Foundation. Bigger dots raise more.

2024
’20’21’22’23’24’25
no gov · 20%1%4%8%15%funder's share of their income ↑0%19%38%56%75%share of the org’s income from government →
    no gov moneyreceives it· size = income
    2get no government money at all
    7report government grants on their 990 we could not trace to a source (not plotted)
    0rely on government for over half their income
    ⤢ axis zoomed · 0–75%
    typical government reliance, FY20–25
    How this is measured
    Government income is each org’s traced federal awards (USASpending grants and contracts) plus state payments (open checkbooks) as a share of its total revenue (IRS Form 990); the self-reported government-grant line (990 line 1e) is carried for cross-check: a grantee that reports government grants we could not trace to a source is left off the chart rather than shown as receiving none. An association, not a claim that a grant caused the public funding. Coverage is precision-first, a floor rather than a census; state records exist for 9 states, so a grantee outside them shows no state figure (dimmed) rather than a false zero. Federal award amounts are obligations, which can span years, so a single-year share is indicative. 990 filings lag 12 to 24 months.
    05Through Plinth

    Warm introductions · Powered by PlinthPlus

    How do I get to The Weill Family Foundation?

    Find your warmest path to The Weill 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.

    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 51 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 2024, released 2024. Filings run roughly 12 to 24 months behind; figures are dated accordingly.

    Source object · view filing

    Play a game based on Weill Family’s filings →

    More from the funding graph

    The unnamed billions
    grants reported with no recipient in the public record
    The regranting layer
    51% of grant dollars land in the regranting layer
    The DAF merry-go-round
    $9.7B circulates between donor-advised funds
    The endowment market
    who holds foundation money, and what just moved
    The camps
    funders cluster by geography, not ideology
    By state
    where grant money is based, and what stays home