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· Private foundation

Margo and Irwin Winkler Charitable 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.

$171k
Granted FY2024still arriving
15
Grants FY2024still arriving
6
States reached
$62k
Largest
01What it funds
0195% classified

What it funded, over time

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

Arts & Culture$960kEducation$149kScience & Tech$76kHealth$49kHuman Services$24kCivil Rights$10kPublic Safety & Disaster$6kCrime & Legal$5kOther$0
02FY2024 · 15 grants

Where the money goes

Grants by size, and the largest recipients.

By grant size · FY2024

  • Under $10k11 grants · $24k
  • $10k–50k2 grants · $36k
  • $50k–250k2 grants · $112k
$2,500
Median grant
6
States reached
$508k
Total assets
Largest grants
RecipientAmount
LOS ANGELES PHILHARMONIC$62,000
Individual grant recipient$50,000
JH PIEGO$25,000
TEMPLE OF THE ARTS$10,500
BERKSHIRE SCHOOL$7,500
GLORIA'S FOUNDATION$5,000
CEDARS SINAI (CS BOARD OF GOVERNORS)$4,000
LACMA$2,500
BEAT THE STREETS$1,000
LOS ANGELES MUSIC CENTER$1,000
FRIENDS OF MALIBU URGENT CARE$1,000
HCCF (HILLCREST)$850
BEVERLY HILLS FIREFIGHTER'S ASSOCIATION$500
BEVERLY HILLS POLICE OFFICERS' FUND$500
PBS$60
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:

Dollar for dollar, its grants (FY17–24) land where the poverty rate runs at 14%, against an area that typically sits at 12%. 93% of its dollars go to grantees based in above-average-need neighborhoods. Most of its grants land in higher-need ZIPs.

area typical 12%BERKSHIRE SCHOOL: $8k → 12%WOMEN'S CANCER RESEARCH: $25k → 10%GLORIA'S FOUNDATION: $5k → 14%RAPE FOUNDATION: $5k → 14%NATIONAL BOOK FOUNDATION: $5k → 17%KNESES ISRAEL: $5k → 20%JH PIEGO: $25k → 19%BERKSHIRE SCHOOL: $8k → 12%WOMEN'S CANCER RESEARCH: $25k → 10%MS FOUNDATION FOR WOMEN: $5k → 20%WOMEN'S CANCER RESEARCH: $25k → 10%MS FOUNDATION FOR WOMEN: $5k → 20%LOS ANGELES PHILHARMONIC: $150k → 14%LOS ANGELES PHILHARMONIC: $100k → 14%LOS ANGELES PHILHARMONIC: $99k → 14%LOS ANGELES PHILHARMONIC: $62k → 14%LOS ANGELES PHILHARMONIC: $60k → 14%LOS ANGELES PHILHARMONIC: $60k → 14%LOS ANGELES PHILHARMONIC: $25k → 14%ARCHER SCHOOL: $8k → 14%ARCHER SCHOOL: $8k → 14%ARCHER SCHOOL: $8k → 14%ARCHER SCHOOL: $8k → 14%WILDWOOD SCHOOL: $15k → 14%WILDWOOD SCHOOL: $8k → 14%WILDWOOD SCHOOL: $8k → 14%MALBOROUGH SCHOOL: $10k → 14%WILDWOOD SCHOOL: $8k → 14%MALBOROUGH SCHOOL: $10k → 14%WILDWOOD SCHOOL: $8k → 14%MALBOROUGH SCHOOL: $8k → 14%WILDWOOD SCHOOL: $8k → 14%MALBOROUGH SCHOOL: $8k → 14%CARDIOVASCULAR RESEARCH: $50k → 14%CARDIOVASCULAR RESEARCH: $50k → 14%TEMPLE OF THE ARTS: $18k → 14%TEMPLE OF THE ARTS: $18k → 14%TEMPLE OF THE ARTS: $18k → 14%TEMPLE OF THE ARTS: $15k → 14%TEMPLE OF THE ARTS: $15k → 14%TEMPLE OF THE ARTS: $11k → 14%TEMPLE OF THE ARTS: $11k → 14%CEDARS SINAI (CS BOARD OF GOVERNORS): $4k → 14%LACMA: $78k → 14%LACMA: $78k → 14%LACMA: $68k → 14%LACMA: $43k → 14%LACMA: $13k → 14%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

NY
MA
PA
NJ
CA
VA
MD
GA
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.

96%of every dollar goes to organizations it has funded before.
$1.3M · 25 repeat orgs$55k to everyone else

Grantees it renews have grown median revenue +50% since the first grant, against +1% for those funded once.

25 repeat relationships: 12 still active in FY2024, 13 since wound down; 3 grantees were first funded in FY2024 (too recent to call).

How the two cohorts compare

Re-uppedFunded once

Organizations

25
9

Total granted

$1.3M
$21k

Median revenue growth · since first grant

+50%
+1%

Still filing today

32%
56%

New vs renewed · share of each year

In FY2024, 80% of grant dollars renewed an existing relationship; $34k 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
EducationArts & CultureHealthCivil RightsYouth DevelopmentInternationalOther
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

  • LA
    LOS ANGELES PHILHARMONIC ASSOCIATION
    7× · 2017–2024 · $556k · revenue +28%
  • WS
    WILDWOOD SCHOOL INC
    6× · 2018–2023 · $53k · revenue +50%
  • MS
    MARLBOROUGH SCHOOL
    4× · 2018–2021 · $35k · revenue +4%

Funded once

  • TR
    THE RAPE FOUNDATION
    one grant, 2017 · $5k · revenue -59%
  • NB
    NATIONAL BOOK FOUNDATION INC
    one grant, 2018 · $5k · revenue +1%
  • IG
    Individual grant recipient
    one grant, 2017 · $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.

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
University of Southern California

The central mission of the university of southern california is the development of human beings and society as a whole through the cultivation and enrichment of the human mind and spirit. the principal means by which our mission is…

Education
2
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
3
President and Fellows of Harvard College

Undergraduate, graduate, and professional education and research across a broad array of academic domains.

Education
4
Lindenwood Education System

Real experience. real success.enhancing lives through quality education and professional preparatory experiences. see schedule o.values:we put our students first. we have an unwavering commitment to providing the highest quality education,…

Education
5
Pembroke Hill School

A preschool through 12th grade, private, college preparatory school. the school's mission statement is "together, cultivating the best in each for the benefit of all."

Education
6
The Winsor School

Our mission: the winsor school prepares young women to pursue their aspirations and contribute to the world.

Education
7
The Archer School for Girls Inc

The archer school for girls is an educational community that supports and challenges young women to discover their passions and realize their true potential by a) providing a rigorous, integrated college preparatory curriculum that fosters…

Education
8
Dickinson College

Dickinson college provides a useful, innovative and interdisciplinary education in the liberal arts and sciences to prepare students to lead rich and fulfilling lives of engaged global citizenship

Education
9
Berkeley Hall School Foundation

Our mission is to "empower children to fulfill their unlimited, god-given potential as fearless scholars and conscientious citizens."

Education
10
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
11
Albright College

As a diverse community of learners, we cultivate integrity, curiosity, connection and resilience.

Education
12
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
How this is measured
The grantee most central to the portfolio’s shape is Ms Foundation for Women Inc; the most unlike its peers is National Foundation for the Centers for Disease Control and Prevention Inc. 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

14 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. 14 of the 37 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)
1
Early backer (in before they grew)
14/14
Grantees still filing
11/14
Grew since first funded

Where the money sits, by cause and then by grantee

LACMA: $285,000 · OtherLACMATEMPLE OF THE ARTS: $106,000 · OtherTEMPLE OF THE ARTSIndividual grant recipient: $101,000 · OtherIndividual grant recipientIndividual grant recipient: $75,000 · OtherIndividual grant recipientARCHER SCHOOL: $30,875 · OtherJHPIEGO CORPORATION: $25,000 · Other+20 more: $83,342 · Other+20 moreLOS ANGELES PHILHARMONIC ASSOCIATION: $555,969 · Arts & CultureLOS ANGELES PHILHARMONIC ASSOCIATION+1 more: $1,000 · Arts & CultureWILDWOOD SCHOOL INC: $52,500 · EducationMARLBOROUGH SCHOOL: $35,000 · EducationTHE BERKSHIRE SCHOOL INC: $15,000 · EducationBRENTWOOD SCHOOL: $7,500 · EducationCEDARS-SINAI MEDICAL CENTER: $10,000 · HealthVENICE FAMILY CLINIC: $1,000 · HealthMS FOUNDATION FOR WOMEN INC: $10,000 · Civil RightsBeat The Streets Inc: $3,000 · Youth DevelopmentSHINE ON FKA SHINE ON SIERRA LEONE: $1,000 · International
Other$706,217Arts & Culture$556,969Education$110,000Health$11,000Civil Rights$10,000Youth Development$3,000International$1,000

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 budgetLOS ANGELES PHILHARMONIC ASSOCIATION: $555,969 over 7y, 0.1% of budgetWILDWOOD SCHOOL INC: $52,500 over 6y, 0.0% of budgetMARLBOROUGH SCHOOL: $35,000 over 4y, 0.0% of budgetJHPIEGO CORPORATION: $25,000 over 1y, 0.0% of budgetTHE BERKSHIRE SCHOOL INC: $15,000 over 2y, 0.0% of budgetMS FOUNDATION FOR WOMEN INC: $10,000 over 2y, 0.1% of budgetCEDARS-SINAI MEDICAL CENTER: $10,000 over 6y, 0.0% of budgetBRENTWOOD SCHOOL: $7,500 over 3y, 0.0% of budgetTHE RAPE FOUNDATION: $5,000 over 1y, 0.2% of budgetNATIONAL BOOK FOUNDATION INC: $5,000 over 1y, 0.2% of budgetBeat The Streets Inc: $3,000 over 3y, 0.5% of budgetSHINE ON FKA SHINE ON SIERRA LEONE: $1,000 over 1y, 0.5% of budgetNATIONAL FOUNDATION FOR THE CENTERS FOR DISEASE CONTROL AND PREVENTION INC: $1,000 over 1y, 0.0% of budgetVENICE FAMILY CLINIC: $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.

  • Who funds LOS ANGELES PHILHARMONIC ASSOCIATION ↗
  • Who funds WILDWOOD SCHOOL INC ↗
  • Who funds MARLBOROUGH SCHOOL ↗
  • Who funds JHPIEGO CORPORATION ↗
  • Who funds THE BERKSHIRE SCHOOL INC ↗
  • Who funds MS FOUNDATION FOR WOMEN INC ↗
  • Who funds CEDARS-SINAI MEDICAL CENTER ↗
  • Who funds BRENTWOOD SCHOOL ↗
  • Who funds THE RAPE FOUNDATION ↗
  • Who funds NATIONAL BOOK FOUNDATION INC ↗
  • Who funds Beat The Streets Inc ↗
  • Who funds SHINE ON FKA SHINE ON SIERRA LEONE ↗
  • Who funds NATIONAL FOUNDATION FOR THE CENTERS FOR DISEASE CONTROL AND PREVENTION INC ↗
  • Who funds VENICE FAMILY CLINIC ↗

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 Philanthropy Fund for Wealth Management IncNY12.1× affinity4 shared granteesties to 4 of 4Hover any node to trace its alignments.Compare side by side →

Open a dossier: Gs Donor Advised Philanthropy Fund for Wealth Management Inc · National Philanthropic Trust · 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 Margo and Irwin Winkler Charitable Foundation funds: left to right is the share of its income from government, bottom to top the share from Margo and Irwin Winkler Charitable Foundation. Bigger dots raise more.

2024
’20’21’22’23’24’25
no gov · 10%0%1%3%5%funder's share of their income ↑0%25%50%75%100%share of the org’s income from government →median 65%
  • Jhpiego Corporation: 65% of income from government
no gov moneyreceives it· size = income
1get no government money at all
2report government grants on their 990 we could not trace to a source (not plotted)
1rely 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 Margo and Irwin Winkler Charitable Foundation?

Find your warmest path to Margo and Irwin Winkler 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 37 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

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