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The Weitz Family Charitable Foundation at a glance

· Private foundation

The Weitz Family Charitable 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.

$50k
Granted FY2025still arriving
1
Grants FY2025still arriving
1
States reached
$50k
Largest
01What it fundsRead
02The needRead
03Its granteesRead
04Its fieldRead
05Through PlinthRead
01What it funds
0187% classified

What it funded, over time

Every grant placed by its stated purpose and the recipient’s mission, by year, FY2017 to 2025.

Religion$790kEducation$775kHealth$231kInternational$200kPhilanthropy$166kHuman Services$59kArts & Culture$43kYouth Development$8kOther$0
02FY2025 · 1 grant

Where the money goes

Grants by size, and the largest recipients.

$50,000
Median grant
1
States reached
$1.3M
Total assets
Largest grants
RecipientAmount
MOUNT SINAI MEDICAL CENTER FOUNDATION INC$50,000
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 (FY17–22, $55k) land where the poverty rate runs at 7%, against an area that typically sits at 11%. 7% of those dollars go to grantees based in above-average-need neighborhoods. Its grants skew toward lower-need ZIPs.

area typical 11%THIRD OPTION FOUNDATION: $50k → 6%THE LUSTGARTEN FDN: $1k → 6%LUSTGARTEN FDN: $500 → 6%HEBREW FREE LOAN SOCIETY: $4k → 17%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
CT
CA
CO
VA
MD
DC
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.

73%of every dollar goes to organizations it has funded before.
$1.8M · 10 repeat orgs$638k to everyone else

Grantees it renews have grown median revenue +25% since the first grant, against +22% for those funded once.

10 repeat relationships: 1 still active in FY2025, 9 since wound down.

How the two cohorts compare

Re-uppedFunded once

Organizations

10
21

Total granted

$1.8M
$638k

Median revenue growth · since first grant

+25%
+22%

Still filing today

70%
71%

New vs renewed · share of each year

In FY2025, 100% of grant dollars renewed an existing relationship; $0 went to new ones.

50%100%’17’18’19’20’21’22’23’24’25
RenewedFirst-time

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

’17’18’19’20’21’22’23’24’25
PhilanthropyHealthHuman ServicesEducationArts & CulturePublic Safety & DisasterOther
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

  • HU
    HOFSTRA UNIVERSITY
    2× · 2019–2022 · $525k · revenue +19%
  • MS
    MOUNT SINAI MEDICAL CENTER FOUNDATION
    3× · 2021–2025 · $125k · revenue +36%
  • TD
    THE DISCOVERY LAND COMPANY FOUNDATION
    2× · 2018–2019 · $65k · revenue +44%

Funded once

  • TU
    TOURO UNIVERSITYgraduated
    one grant, 2022 · $250k · revenue +35%
  • IG
    Individual grant recipient
    one grant, 2017 · $105k
  • TA
    THE ATLANTIC GOLF CLUB FOUNDATION
    one grant, 2017 · $100k · revenue +10%
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
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
2
Memorial Sloan-Kettering Cancer Center

Leadership in the prevention, treatment, and cure of cancer through excellence, vision and cost effectiveness in patient care, outreach programs, research, and education.

Health
3
Institute for Advanced Study - Louis Bamberger & Mrs Felix Fuld Foundation

The institute for advanced study (the institute) is one of the world's leading centers for theoretical research and intellectual inquiry. see schedule o.

Science & Tech
4
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
5
Sanford Burnham Prebys Medical Discovery Institute

Sanford burnham prebys medical discovery institute's mission is to advance the biomedical sciences by cultivating the next generation of scientific leaders, providing meaningful opportunities for researchers of all backgrounds to learn,…

Health
6
The Johns Hopkins Hospital

For more than 125 years, the mission of the johns hopkins hospital has been to lead the world in the diagnosis and treatment of disease and to train tomorrow's great physicians, nurses and scientists. above all, we aim to provide the…

Health
7
National September 11 Memorial and Museum At the World Trade Center

The national september 11 memorial & museum at the world trade center bears solemn witness to the terrorist attacks of september 11, 2001, and february 26, 1993. located at a site made sacred through loss, the memorial & museum remembers…

Arts & Culture
8
Dana-Farber Cancer Institute Inc

The mission of dfci is to provide expert, compassionate, and equitable care to children, adults, and their families, while advancing the understanding, diagnosis, treatment, cure, and prevention of cancer and related diseases. we train new…

Health
9
Foundation for Research of the New York Academy of Osteopathy Inc
—
10
Neurology Associates of Stony Brook University Faculty Practice Corp

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

Health
11
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
12
University of Minnesota Physicians

University of minnesota physicians serves as the integrated group practice for the university of minnesota medical school full-time faculty to provide the highest quality healthcare to patients and their families.university of minnesota…

Health
How this is measured
The grantee most central to the portfolio’s shape is Robin Hood Foundation; the most unlike its peers is Charles M Schwartz Memorial 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

23 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. 23 of the 31 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)
5
Early backer (in before they grew)
22/23
Grantees still filing
17/23
Grew since first funded

Where the money sits, by cause and then by grantee

COLEL CHABAD: $790,000 · OtherCOLEL CHABADIndividual grant recipient: $105,000 · OtherIndividual grant recipientMOUNT SINAI MEDICAL CENTER FOUNDATION: $50,000 · OtherEAST HAMPTON COMM ALLIANCE: $35,000 · Other+10 more: $30,250 · OtherHOFSTRA UNIVERSITY: $525,000 · EducationHOFSTRA UNIVERSITYTOURO UNIVERSITY: $250,000 · EducationTOURO UNIVERSITYFRIENDS OF THE ISRAEL DEFENSE FORCES: $200,000 · InternationalFRIENDS O…THE ATLANTIC GOLF CLUB FOUNDATION: $100,000 · PhilanthropyTHE DISCOVERY LAND COMPANY FOUNDATION: $65,000 · PhilanthropyROSWELL PARK ALLIANCE FOUNDATION: $10,000 · Philanthropy+2 more: $1,500 · PhilanthropyMOUNT SINAI MEDICAL CENTER FOUNDATION: $125,000 · HealthSOMOS HEALTHCARE PROVIDERS INC: $20,000 · HealthCYSTIC FIBROSIS FOUNDATION: $10,000 · Health+2 more: $10,000 · HealthTHIRD OPTION FOUNDATION: $50,000 · Human ServicesHEBREW FREE LOAN SOCIETY INC: $3,600 · Human Services+1 more: $1,500 · Human ServicesThe United States Holocaust Memorial Museum: $7,500 · Arts & Culture
Other$1,010,250Education$775,000International$200,000Philanthropy$176,500Health$165,000Human Services$55,100Arts & Culture$7,500

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 budgetHOFSTRA UNIVERSITY: $525,000 over 2y, 0.1% of budgetTOURO UNIVERSITY: $250,000 over 1y, 0.1% of budgetFRIENDS OF THE ISRAEL DEFENSE FORCES: $200,000 over 2y, 0.1% of budgetMOUNT SINAI MEDICAL CENTER FOUNDATION: $125,000 over 3y, 0.1% of budgetTHE DISCOVERY LAND COMPANY FOUNDATION: $65,000 over 2y, 0.5% of budgetTHIRD OPTION FOUNDATION: $50,000 over 1y, 0.4% of budgetSOMOS HEALTHCARE PROVIDERS INC: $20,000 over 1y, 0.0% of budgetCYSTIC FIBROSIS FOUNDATION: $10,000 over 1y, 0.0% of budgetThe United States Holocaust Memorial Museum: $7,500 over 2y, 0.0% of budgetCHARLES M SCHWARTZ MEMORIAL FOUNDATION: $5,000 over 1y, 5.3% of budgetLOUIS AUGUST JONAS FOUNDATION INC: $5,000 over 1y, 0.5% of budgetMIAMI BEACH JEWISH COMMUNITY CENTER INC: $5,000 over 1y, 0.1% of budgetHEBREW FREE LOAN SOCIETY INC: $3,600 over 1y, 0.1% of budgetEXPERIENCE CAMPS: $2,500 over 1y, 0.1% of budgetHALESITE FIRE DEPARTMENT INC: $1,500 over 4y, 0.1% of budgetMARC LUSTGARTEN PANCREATIC CANCER FOUNDATION: $1,500 over 2y, 0.0% of budgetTHE AMERICAN SOCIETY FOR THE PREVENTION OF CRUELTY TO ANIMALS: $1,000 over 1y, 0.0% of budgetFriars Head Disaster Relief Fund: $1,000 over 1y, 0.5% of budgetROBIN HOOD FOUNDATION: $500 over 1y, 0.0% of budgetUniversity of Michigan: $500 over 1y, 0.1% 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 set of overlaps that mostly run through this funder rather than between each other.

Fidelity Investments …
Fidelity Investments Charitable Gift FundMA3.5× affinity4 shared granteesties to 0 of 0Hover any node to trace its alignments.Compare side by side →

Open a dossier: 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 Weitz Family Charitable Foundation funds: left to right is the share of its income from government, bottom to top the share from The Weitz Family Charitable Foundation. Bigger dots raise more.

2024
’20’21’22’23’24’25
no gov · 30%0%1%3%5%funder's share of their income ↑0%25%50%75%100%share of the org’s income from government →
    no gov moneyreceives it· size = income
    3get no government money at all
    5report government grants on their 990 we could not trace to a source (not plotted)
    0rely on government for over half their income
    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 Weitz Family Charitable Foundation?

    Find your warmest path to The Weitz Family Charitable 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 31 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

    Play a game based on Weitz 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