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The Wiener Family Foundation at a glance

· Private foundation

The Wiener 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.

$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
01100% classified

What it funded, over time

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

Health$600kEducation$400kPhilanthropy$400kArts & Culture$78kYouth Development$21kInternational$3k
02FY2025 · 1 grant

Where the money goes

Grants by size, and the largest recipients.

$50,000
Median grant
1
States reached
$1.1M
Total assets
Largest grants
RecipientAmount
MIDDLEBRIDGE SCHOOL$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 (FY19–19, $250k) land where the poverty rate runs at 17%, against an area that typically sits at 9%. 100% of those dollars go to grantees based in above-average-need neighborhoods. Most of its grants land in higher-need ZIPs.

area typical 9%MOUNT SINAI HEALTH SYSTEM: $250k → 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.
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.

64%of every dollar goes to organizations it has funded before.
$700k · 5 repeat orgs$401k to everyone else

5 repeat relationships: 0 still active in FY2025, 5 since wound down; 1 grantees were first funded in FY2025 (too recent to call).

How the two cohorts compare

Re-uppedFunded once

Organizations

5
6

Total granted

$700k
$351k

Median revenue growth · since first grant

+22%
+34%

Still filing today

100%
83%

New vs renewed · share of each year

In FY2025, 0% of grant dollars renewed an existing relationship; $50k went to new ones.

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

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

’17’18’19’20’24’25
EducationArts & CulturePhilanthropyHuman ServicesOther
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

  • ICAHN SCHOOL OF MEDICINE AT MOUNT SINAI
    3× · 2017–2020 · $350k · revenue +58%
  • TD
    Trevor Day School
    3× · 2018–2024 · $220k · revenue +26%
  • THE WINDWARD SCHOOL
    2× · 2018–2019 · $50k · revenue +13%

Funded once

  • MS
    MOUNT SINAI HEALTH SYSTEM INCgraduated
    one grant, 2019 · $250k · revenue +34%
  • AN
    ARS NOVA THEATER I INC
    one grant, 2020 · $70k · revenue -25%
  • SF
    STUTTERING FOR THE YOUNG
    one grant, 2024 · $21k
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
The Ideal School of Manhattan

An independent school providing a comprehensive educational program for children from K through 12th grade.

Education
2
Mark Day School

Innovative and full of heart, mark day school nurtures each child to pursue their curiosity, think critically, embrace challenge with courage and joy, and work in partnership with others to build more caring and inclusive communities.

—
3
Darrow School

Darrow school is dedicated to serving students with diverse backgrounds and abilities, building on each student's talents and interests to inspire enduring confidence for success in college and life. this mission is accomplished through…

Education
4
Manhattanville University

To educate students to be ethical and socially responsible leaders in a global community.

Education
5
The Mirman School for Gifted Children

We cultivate the boundless potential of highly gifted children, nurture their passions and talents, and develop a diverse community of creative and constructive lifelong learners.

Education
6
The Philadelphia School

The philadelphia school educates children for a future that is impossible to know but not impossible to shape. learn here. go anywhere.

—
7
New York School of Interior Design

New york school of interior design provides the most innovative, immersive, and transformative interior design education in the world, demonstrating the impact of professionally designed interiors on the health, happiness, and well-being…

Education
8
New York City Charter School of the Arts

New york city charter school of the arts (the "school") inspires a diverse community of young people to engage with the arts as a pathway to rich and rigorous academic scholarship and a creative, purposeful life.

Education
9
Morristown-Beard School

Morristown beard school is an educational college preparatory school in grades 6 to 12 located in morristown, new jersey.

Education
10
The Lang School

Founded to educate and inspire gifted and precocious learners who require special social, emotional, executive function and academic supports to realize their high potential, in the greater new york city area, for students grades 1 through…

Education
11
Jewish Day School of Metropolitan Seattle

Jds is committed to providing an innovative academic program through a rigorous integrated, inquiry-based curriculum with general & judaic studies, empowering children to grow into capable, wise, and compassionate upstanders.

Education
12
Maret School Inc

Maret is a vibrant k-12, co-educational, independent school in washington, dc. we ignite our students' potential and foster their academic, artistic, and athletic talents.

Education
How this is measured
The grantee most central to the portfolio’s shape is Trevor Day School; the most unlike its peers is The Tank Ltd. 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

12 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. 12 of the 13 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)
2
Early backer (in before they grew)
12/12
Grantees still filing
9/12
Grew since first funded

Where the money sits, by cause and then by grantee

ICAHN SCHOOL OF MEDICINE AT MOUNT SINAI: $350,000 · EducationICAHN SCHOOL OF MEDICINE AT MOUNT SINAITrevor Day School: $220,167 · EducationTrevor Day SchoolMIDDLEBRIDGE SCHOOL INC: $50,000 · EducationMIDDLEBRIDGE SCHOOL INCTHE WINDWARD SCHOOL: $50,000 · EducationTHE WINDWARD SCHOOLTHE BIRCH WATHEN LENOX SCHOOL: $30,000 · EducationJEWISH COMMUNAL FUND: $400,000 · PhilanthropyJEWISH COMMUNAL FUND+1 more: $2,500 · PhilanthropyMOUNT SINAI HEALTH SYSTEM INC: $250,000 · Human ServicesMOUNT SINAI HEALTH…ARS NOVA THEATER I INC: $70,000 · Arts & CultureTHE TANK LTD: $5,000 · Arts & CultureTHE PARKSIDE SCHOOL: $50,000 · OtherSTUTTERING FOR THE YOUNG: $21,250 · OtherMETROPOLE FILM BOARD INC CO OREN JACOBY: $2,500 · Other
Education$700,167Philanthropy$402,500Human Services$250,000Arts & Culture$75,000Other$73,750

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

25%50%75%100%$10M$100Mgrantee revenue →↑ funder's share of their budgetJEWISH COMMUNAL FUND: $400,000 over 2y, 0.1% of budgetICAHN SCHOOL OF MEDICINE AT MOUNT SINAI: $350,000 over 3y, 0.0% of budgetMOUNT SINAI HEALTH SYSTEM INC: $250,000 over 1y, 0.4% of budgetTrevor Day School: $220,167 over 3y, 0.3% of budgetARS NOVA THEATER I INC: $70,000 over 1y, 1.6% of budgetMIDDLEBRIDGE SCHOOL INC: $50,000 over 1y, 0.6% of budgetTHE WINDWARD SCHOOL: $50,000 over 2y, 0.0% of budgetTHE PARKSIDE SCHOOL: $50,000 over 2y, 0.5% of budgetTHE BIRCH WATHEN LENOX SCHOOL: $30,000 over 2y, 0.1% of budgetTHE TANK LTD: $5,000 over 1y, 0.4% of budgetMETROPOLE FILM BOARD INC CO OREN JACOBY: $2,500 over 1y, 0.9% of budgetFIND YOUR LIGHT FOUNDATION: $2,500 over 1y, 0.4% 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.

The Goldman Sachs Cha…Jewish Communal FundNational Philanthropi…Charities Aid Foundat…American Endowment Fo…The Bank of America C…Vanguard Charitable E…American Online Givin…Donor Advised Charita…Fidelity Investments …Amazonsmile Foundation
The Goldman Sachs Charitable Gift FundNY13× affinity4 shared granteesties to 10 of 10Hover any node to trace its alignments.Compare side by side →

Open a dossier: The Goldman Sachs Charitable Gift Fund · Jewish Communal Fund · National Philanthropic Trust · Charities Aid Foundation America · American Endowment Foundation · The Bank of America Charitable Foundation Inc · Vanguard Charitable Endowment Program · American Online Giving Foundation Inc · Donor Advised Charitable Giving 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.

How much its grantees rely on government

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

2024
’20’21’22’23’24’25
no gov · 00%0%1%3%5%funder's share of their income ↑0%5%10%15%20%share of the org’s income from government →
    no gov moneyreceives it· size = income
    0get no government money at all
    6report government grants on their 990 we could not trace to a source (not plotted)
    0rely on government for over half their income
    ⤢ axis zoomed · 0–20%
    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 Wiener Family Foundation?

    Find your warmest path to The Wiener 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 13 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 Wiener 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