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· Private foundation

Leon J Simkins 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.

$2.5M
Granted FY2024still arriving
12
Grants FY2024still arriving
5
States reached
$2.4M
Largest
01What you fundRead
02The needRead
03Your edgeRead
04Your fieldRead
05Through PlinthRead
01What you fund
0195% classified

What you funded, over time

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

Philanthropy$5.0MArts & Culture$3.2MHealth$350kCommunity Improvement$253kReligion$193kInternational$167kEducation$129kYouth Development$118kOther$0
02FY2024 · 12 grants

Where the money goes

Your grants by size, and where they go.

By grant size · FY2024

  • Under $10k7 grants · $23k
  • $10k–50k4 grants · $45k
  • $250k+1 grant · $2.4M
$8,600
Median grant
5
States reached
$12M
Total assets
Largest grants
RecipientAmount
WALKER ART CENTER$2,400,000
HERMANOS DE LA CALLE$15,000
CHABAD HOUSE ON WHEELS$10,400
MADISON SQUARE PARK CONSERVANCY$10,000
THE METROPOLITAN MUSEUM OF ART$10,000
TEMPLE BETH SHOLOM$8,600
SUBTROPICAL AFFAIRS INC$5,000
GREATER MERCY MISSIONARY BAPTIST CHURCH$4,000
THE EILEEN YOUTIE FOUNDATION$2,500
Individual grant recipient$1,029
MOTHER OF GOD CHALDEAN CATHOLIC CHURCH$1,000
BIKE TO THE BEACH INC$1,000
02The need
03

Do your dollars go where the need is?

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

show:

Your human-services grants (FY17–22, $34k) land where the poverty rate runs at 14%, against an area that typically sits at 10%. 100% of those dollars go to grantees based in above-average-need neighborhoods. Most of your grants land in higher-need ZIPs.

area typical 10%Emmaus Inc: $250 → 10%Chapman Partners: $11k → 15%Chapman Partners: $5k → 15%Urgent Inc: $5k → 15%Chapman Partners: $5k → 15%Chapman Partnership: $2k → 15%Center for Social Change: $6k → 15%0%20%40%50%more need →
grant to an above-average-need area below average· circle size = grant amount

Matched: human-services grants are those whose grantee’s IRS cause code is Human Services. Placed by people below the poverty linein the grantee’s ZIP, averaged from the tracts in that ZIP; grantee ZIP can differ from where services are delivered.

Which US states your grants reach

ME
MN
MI
NY
MA
OR
PA
CT
CA
CO
VA
MD
DC
LA
FL

US grants placed by each grantee’s ZIP, which can differ from where services are actually delivered. Need from public data — U.S. Census/ACS, CDC PLACES, Eviction Lab, USDA — shown as context about the area, never attributed to your giving.

03Your edge
repeat funding

Who you back again

Which organizations you funded more than once, and which you funded a single time. Each grantee is matched to its own filings.

35%of every dollar goes to organizations you’ve funded before.
$1.6M · 31 repeat orgs$3.0M to everyone else

And the relationships you keep tend to grow: grantees you re-up on have seen median revenue of +32% since the first grant, against +16% for the ones you funded once.

31 repeat relationships — 5 still active in FY2024, 26 since wound down; 7 grantees were first funded in FY2024 (too recent to call).

How the two cohorts compare

Re-uppedFunded once

Organizations

31
67

Total granted

$1.6M
$583k

Median revenue growth · since first grant

+32%
+16%

Still filing today

58%
54%

New vs renewed · share of each year

In FY2024, 1% of grant dollars renewed an existing relationship; $2.4M 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
Arts & CultureHealthEducationInternationalHuman ServicesYouth DevelopmentOther

First-time = a grantee’s first year in your filing window; renewed = funded in an earlier year too. As a portfolio matures the renewed share naturally climbs — once funded, an org stays “renewable” — so the signal is the years that buck it (a new-grantee intake wave). 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

  • MM
    METROPOLITAN MUSEUM OF ART
    2× · 2023–2024 · $435k · revenue +19%
  • DR
    DIABETES RESEARCH INSTITUTE FOUNDATION INC
    4× · 2017–2022 · $140k · revenue +32%
  • MS
    MOUNT SINAI MEDICAL CENTER FOUNDATION
    6× · 2017–2023 · $114k · revenue +44%

Funded once

  • FRIENDS OF THE ISRAEL DEFENSE FORCES
    one grant, 2023 · $96k · revenue -33%
  • HI
    HALEAKALA INC
    one grant, 2018 · $65k · revenue +15%
  • AS
    ARTISTS SPACE INC
    one grant, 2019 · $48k · revenue +12%

Repeat = funded in two or more distinct years; growth and survival are read from each grantee’s own subsequent IRS filings.

04Your field

The map has a center of gravity: the average direction from the rest of the sector toward the organizations the foundation funds — the shape of its giving. Scoring every nonprofit along that direction surfaces the ones that look most like the portfolio. These are the closest matchesthat aren’t grantees — a resemblance in what they say they do, not a recommendation.

1
University of Miami
—
2
University of Miami

See Form 990, Part I, Line 1, Description of Organization Mission.

Education
3
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
4
Miami-Dade Innovation Authority Inc

Miami-dade innovation authority bridges the gap between private innovators and the public sector to fast track innovation that improves quality of life for miamians.

Science & Tech
5
Fairchild Tropical Botanic Garden Inc

We harness the power of plants for humankind and share the joy and beauty of tropical gardening with everyone. fairchild tropical botanic garden is a museum of tropical plants within a world famous, 83-acre designed landscape. it was…

Environment
6
Florida International University Research Foundation Inc

The fiu research foundation provides means by which discoveries, inventions, processes, and work products of faculty, staff and students of the university may be patented, developed, applied and utilized in order that the results of such…

Science & Tech
7
Mount Sinai Medical Center of Florida Inc

To provide high quality health care to our diverse community enhanced through teaching, research, charity care and financial responsibility.

Health
8
Miami University Foundation

Support of miami university

Education
9
Museum of Contemporary Art Inc

The mission of the musuem of contemporary art is to contemporary art accesible to diverse audiences - especially underserved populations through the collection, preservation and exhibition of the best of contemporary art and its art…

Arts & Culture
10
Manhattanville University

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

Education
11
Albert Einstein College of Medicine

Committed to exceptional healthcare quality for all and actively engaged with our community, einstein drives scientific discovery and educates compassionate leaders in health and science.

Education
12
The Jewish Museum

The mission of the jewish museum is to collect, preserve, exhibit and interpret art and jewish culture. see schedule o for more information.

Arts & Culture

For reference, the grantee most central to the portfolio’s shape is Voices for Children Foundation Inc and the most unlike its peers is Center for Social Change Inc. Resemblance is measured on each organization’s own IRS 990 mission text; it reflects how work is described, not its quality or impact.

Your grantees are a median of 31 years old; the field is 12. You back the established end — and your money leans older still.

THE FIELDby orgYOUR GRANTEESby number25%6%<5yr16%7%5–10yr21%18%10–20yr17%29%20–35yr10%27%35–55yr11%13%55yr+
THE FIELDby orgYOUR MONEYby value25%1%<5yr16%0%5–10yr21%2%10–20yr17%62%20–35yr10%8%35–55yr11%27%55yr+

The field is 25% startups (under 5 years old) — 6% of your grantees by number, and just 1% of your money.

Closures · last 5 years

The orgs you fund almost never close — 5% lost their exemption, against 15% of the field you don’t fund.

orgs you fund
5%
4/76
the rest of the field
15%
15,678/101,454

Age = years since IRS exemption (a founding proxy). “Closed” = auto-revocation for 3 years of non-filing — a floor on closure, not proof, and bigger established orgs lapse least. Association, not causation.

04the grantee network

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

Each one resolved to its own IRS returns and tracked year by year — your grant beside their revenue from every source. Association, dated; never a causal claim.

Counted here: distinct organizations you funded across 2017–2025, not grant rows in a single year — so this will not match the grant count on the cover. 66 of the 110 grantees resolved in that span have returns of their own we could reconcile; the rest are funded organizations whose filings we could not track year by year.

1
Load-bearing (≥25% of a budget)
10
Early backer (in before they grew)
62/66
Grantees still filing
44/66
Grew since you first funded

Where your money sits — by cause, then by grantee

THE MIAMI FOUNDATION INC — $4,911,179 · PhilanthropyTHE MIAMI FOUNDATION INC+6 more — $46,170 · PhilanthropyWALKER ART CENTER — $2,400,000 · Arts & CultureWALKER ART CENTERMETROPOLITAN MUSEUM OF ART — $435,000 · Arts & CultureMETROPOLITAN MUSEUM OF ARTINSTITUTE OF CONTEMPORARY ART MIAMI INC — $144,670 · Arts & Culture+10 more — $176,709 · Arts & Culture+10 moreEndeavor Miami — $152,500 · OtherEndeavor …CHABAD HOUSE ON WHEELS — $68,500 · OtherCHABAD HO…TEMPLE BETH SHOLOM — $55,550 · OtherTEMPLE BE…Individual grant recipient — $44,200 · OtherTOWN SQUARE NEIGHBORHOOD DEVELOPMENT CORPORATION — $35,000 · OtherGUMMAKONDA REDDY FOUNDATION INC — $35,000 · Other+62 more — $453,344 · Other+62 moreDIABETES RESEARCH INSTITUTE FOUNDATION INC — $139,850 · HealthMOUNT SINAI MEDICAL CENTER FOUNDATION — $113,531 · HealthGIVING STRENGTH INC — $37,000 · Health+5 more — $19,300 · HealthFRIENDS OF THE ISRAEL DEFENSE FORCES — $96,333 · InternationalBest Buddies International Inc — $43,000 · InternationalAMERICAN FRIENDS OF MAGEN DAVID ADOM — $18,000 · International+1 more — $1,000 · InternationalTHE TRUSTEES OF COLUMBIA UNIVERSITY IN THE CITY OF NEW YORK — $40,000 · EducationLEHRMAN COMMUNITY DAY SCHOOL INC — $25,000 · EducationFLORIDA INTERNATIONAL UNIVERSITY FOUNDATION INC — $13,000 · EducationRANSOM EVERGLADES SCHOOL INC — $12,500 · EducationTHE ADMINISTRATORS OF THE TULANE EDUCATIONAL FUND — $10,000 · Education+3 more — $7,500 · EducationMARTIN LUTHER KING ECONOMIC DEV — $50,000 · Community ImprovementMIAMI CHILDRENS INITIATIVE INC — $10,000 · Community Improvement
Philanthropy$4,957,349Arts & Culture$3,156,379Other$844,094Health$309,681International$158,333Education$108,000Community Improvement$60,000

Each org by its size and your share of it — top-left is where you’re load-bearing

25%50%75%100%$100k$1.0M$10M$100Mgrantee revenue →↑ your share of their budgetTHE MIAMI FOUNDATION INC — $4,911,179 over 7y, 1.1% of budgetWALKER ART CENTER — $2,400,000 over 1y, 4.0% of budgetMETROPOLITAN MUSEUM OF ART — $435,000 over 2y, 0.1% of budgetINSTITUTE OF CONTEMPORARY ART MIAMI INC — $144,670 over 5y, 1.1% of budgetDIABETES RESEARCH INSTITUTE FOUNDATION INC — $139,850 over 4y, 0.5% of budgetMOUNT SINAI MEDICAL CENTER FOUNDATION — $113,531 over 6y, 0.1% of budgetFRIENDS OF THE ISRAEL DEFENSE FORCES — $96,333 over 1y, 0.0% of budgetHALEAKALA INC — $65,000 over 1y, 3.1% of budgetMARTIN LUTHER KING ECONOMIC DEV — $50,000 over 2y, 4.3% of budgetARTISTS SPACE INC — $48,333 over 1y, 1.7% of budgetBest Buddies International Inc — $43,000 over 3y, 0.1% of budgetTHE TRUSTEES OF COLUMBIA UNIVERSITY IN THE CITY OF NEW YORK — $40,000 over 1y, 0.0% of budgetGIVING STRENGTH INC — $37,000 over 1y, 3.3% of budgetTOWN SQUARE NEIGHBORHOOD DEVELOPMENT CORPORATION — $35,000 over 2y, 16% of budgetWHITE COLUMNS INC — $31,250 over 2y, 1.7% of budgetLEHRMAN COMMUNITY DAY SCHOOL INC — $25,000 over 3y, 0.1% of budgetUNITED WAY MIAMI INC — $24,500 over 2y, 0.0% of budgetCHAPMAN PARTNERSHIP INC — $23,000 over 4y, 0.1% of budgetTHE GIFT OF LIFE CORPORATION — $22,500 over 3y, 36% of budgetOVERTOWN OPTIMIST CLUB — $19,000 over 4y, 1.5% of budgetAMERICAN FRIENDS OF MAGEN DAVID ADOM — $18,000 over 1y, 0.0% of budgetARMAND HAMMER MUSEUM OF ART AND CULTURAL CENTER INC — $16,000 over 1y, 0.0% of budgetSOUTH FLORIDA AFTER-SCHOOL ALL STARS INC — $15,000 over 1y, 1.1% of budgetFLORIDA INTERNATIONAL UNIVERSITY FOUNDATION INC — $13,000 over 1y, 0.0% of budgetRANSOM EVERGLADES SCHOOL INC — $12,500 over 2y, 0.0% of budgetTHE BREAST CANCER RESEARCH FOUNDATION INC — $12,000 over 2y, 0.0% of budgetWOMEN OF TOMORROW MENTOR AND SCHOLARSHIP PROGRAM INC — $11,000 over 3y, 0.5% of budgetMIAMI-DADE CHAMBER OF COMMERCE INC — $11,000 over 2y, 0.7% of budgetMADISON SQUARE PARK CONSERVANCY INC — $10,000 over 1y, 0.1% of budgetMIAMI CHILDREN'S MUSEUM INC FKA MIAMI YOUTH MUSEUM — $10,000 over 1y, 0.1% of budgetMIAMI CHILDRENS INITIATIVE INC — $10,000 over 1y, 0.4% of budgetTHE ADMINISTRATORS OF THE TULANE EDUCATIONAL FUND — $10,000 over 1y, 0.0% of budgetTHE EILEEN YOUTIE FOUNDATION INC — $7,500 over 2y, 1.4% of budgetGREATER MIAMI JEWISH FEDERATION INC — $7,170 over 2y, 0.0% of budgetAMERICAN CANCER SOCIETY INC — $6,800 over 2y, 0.0% of budgetHelping Israel Fund — $5,000 over 1y, 0.3% of budgetACUPUNCTURISTS WITHOUT BORDERS — $5,000 over 1y, 1.1% of budgetURGENT INC — $5,000 over 1y, 0.4% of budgetCROHN'S & COLITIS FOUNDATION INC — $5,000 over 1y, 0.0% of budgetFOUNDATION FOR PRADER-WILLI RESEARCH INC — $5,000 over 1y, 0.1% of budgetTHE SUNDARI FOUNDATION INC — $3,500 over 1y, 0.0% of budgetMIAMI COUNTRY DAY SCHOOL INC — $3,000 over 1y, 0.0% of budgetTHE HEATHER ON EARTH FOUNDATION INC — $2,500 over 1y, 1.6% of budgetMIAMI BEACH JEWISH COMMUNITY CENTER INC — $2,500 over 1y, 0.0% of budgetCHILDREN'S BEREAVEMENT CENTER INC — $2,500 over 1y, 0.4% of budgetEMPOWERED YOUTH INC — $2,500 over 1y, 1.4% of budgetTHE MAYOR'S FUND FOR LOS ANGELES — $2,500 over 1y, 0.0% of budgetIRIE FOUNDATION INC — $2,000 over 1y, 0.6% of budget
Go grantee by grantee — a decade per org, and how each moved after you funded them

A decade per grantee — revenue shaded, your grants as bars, all rows on one timeline.

The grantmakers whose grantees overlap with yours far more than size alone predicts. Each orbits closer the stronger the alignment; the arcs between them show where they also fund each other. Here it reads as a tightly interlocked camp — most of these funders back each other's grantees too.

The Miami Foundation …Greater Miami Jewish …The Batchelor Foundat…Mightycause Charitabl…The Fairholme Foundat…Micky and Madeleine A…Albert H and Jane D N…Jewish Communal FundThe Russell & Ronalee…United Way Miami IncThe Erica and Mark Gr…The Shepard Broad Fou…
The Miami Foundation IncFL55× affinity30 shared granteesties to 11 of 11Hover any node to trace its alignments.Compare side by side →

Open a dossier: The Miami Foundation Inc · Greater Miami Jewish Federation Inc · The Batchelor Foundation Inc · Mightycause Charitable Foundation · The Fairholme Foundation · Micky and Madeleine Arison Family Foundation C/O Richard Kohan Afo LLC · Albert H and Jane D Nahmad Foundation Inc · Jewish Communal Fund · The Russell & Ronalee Galbut Family Foundation Inc · United Way Miami Inc · The Erica and Mark Groussman Foundation Inc · The Shepard Broad Foundation Inc

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

Government reliance of your grantees

Every dot is one organization Leon J Simkins Charitable Foundation funds. Left–right is the share of its income from government; up–down is the share from you. Bigger dots raise more. Filter to federal, a single department, or state — and drag the year to watch it move.

2024
’20’21’22’23’24’25
no gov · 110%6%25%56%100%your share of their income ↑0%19%38%56%75%share of the org’s income from government →median 4%
  • Voices for Children Foundation Inc — 48% of income from government
  • United Way Miami Inc — 23% of income from government
  • Emmaus Inc — 10% of income from government
  • Farm Share Inc — 6% of income from government
  • The Sundari Foundation Inc — 5% of income from government
  • Best Buddies International Inc — 4% of income from government
  • Nu Deco Ensemble Inc — 1% of income from government
  • The Green Haven Project Inc — 1% of income from government
  • Young Musicians Unite Inc — 0% of income from government
  • Miami Children's Museum Inc Fka Miami Youth Museum — 0% of income from government
  • Urgent Inc — 0% of income from government
  • Chapman Partnership Inc — 0% of income from government
no gov moneyreceives it· size = income
11get no government money at all
13report 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

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 your grant caused the public funding. Coverage is precision-first — a floor, not 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 12–24 months.

05Through Plinth

Warm introductions · Powered by PlinthPlus

How do I get to Leon J Simkins Charitable Foundation?

Find your warmest path to Leon J Simkins 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 directly from IRS e-file XML — your own 990/990-PF and the multi-year returns of the 110 grantees we resolved across every year we hold, several hundred filings in all (a different count from the grant rows on the cover, which are one fiscal year)— each linked to its source. Grantee achievements and outcomes are each organization’s own program-service reporting (Form 990, Part III); we read these as association with sustained funding — the foundation is one of several forces — suppress low-confidence name matches rather than guess, and say so where a figure rests on a single grant or filing. Not everything on this page is a filed figure, and the difference matters. Filed is what you reported on your 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. How we build these →

Generated from your IRS Form 990-PF e-file return for fiscal year 2024, released 2024. Filings run roughly 12–24 months behind; figures are dated accordingly.

Source object · view filing

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 camps
funders cluster by geography, not ideology
By state
where grant money is based, and what stays home
State money flows
the interactive map of money crossing state lines