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The Leni & Peter May Family Foundation at a glance

· Private foundation

The Leni & Peter May 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.

$1.2M
Granted FY2024still arriving
22
Grants FY2024still arriving
5
States reached
$275k
Largest
01What it fundsRead
02The needRead
03Its granteesRead
04Its fieldRead
05Through PlinthRead
01What it funds
0195% classified

What it funded, over time

Every grant placed by its stated purpose and the recipient’s mission, by year, FY2020 to 2024.

Education$958kHealth$832kPhilanthropy$365kRecreation & Sports$277kCivil Rights$275kArts & Culture$208kEnvironment$103kPublic Benefit$100kOther$0
02FY2024 · 22 grants

Where the money goes

Grants by size, and the largest recipients.

By grant size · FY2024

  • Under $10k7 grants · $11k
  • $10k–50k6 grants · $120k
  • $50k–250k8 grants · $750k
  • $250k+1 grant · $275k
$25,000
Median grant
5
States reached
$5.0M
Total assets
Largest grants
RecipientAmount
CENTRAL PARK CONSERVANCY$275,000
JEWISH FEDERATION OF PALM BEACH COUNTY$200,000
Individual grant recipient$125,000
CENTRAL SYNAGOGUE$100,000
ADL FIGHTING HATE FOR GOOD$100,000
THE 92NY STREET$75,000
CONVERSATION ON THE GREEN - COMMON GROUND$50,000
SIMON WIESENTHAL CENTER$50,000
NORTHWEST CONNECTICUT LAND CONSERVANCY$50,000
THE JEWISH MUSEUM$30,000
DAVE THOMAS FOUNDATION FOR ADOPTION$25,000
NORTON MUSEUM OF ART$25,000
TOWN OF PALM BEACH UNITED WAY$15,000
METROPOLITAN OPERA$15,000
NEW YORK CITY CENTER$10,000
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 (FY20–23, $801k) land where the poverty rate runs at 17%, against an area that typically sits at 12%. 100% of those dollars go to grantees based in above-average-need neighborhoods. Most of its grants land in higher-need ZIPs.

area typical 12%MOUNT SINAI HEALTH SYSTEM: $500k → 17%MOUNT SINAI HEALTH SYSTEM: $250k → 17%MOUNT SINAI HEALTH SYSTEM: $51k → 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
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 Trustees of Princeton University

Research, education and general - princeton university is a private not-for-profit, non-sectarian institution of higher learning with approximately 5,700 undergraduate and 3,300 graduate students. 2,500 students graduated in the 2024-2025…

Education
2
Public Media Nj Inc

To bring quality public television programs and resources to communities throughout new jersey and its tri-state neighbors. its content, both on-air and online, aims to reflect the diverse

Arts & Culture
3
Museum of Modern Art

The Museum of Modern Art is a private, non-profit institution chartered by the State of New York Department of Education in 1929 to foster public awareness of modern and contemporary art. (Continued in Schedule O)

Arts & Culture
4
Long Island Jewish Medical Center

Long island jewish medical center is part of the northwell health ("northwell"), which strives to improve the health of the communities it serves and is committed to providing the highest quality clinical care; educating the current and…

Health
5
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
6
Metropolitan Jewish Health System Inc

Mjhs health system is a charitable not-for-profit established to support the activities of affiliated organizations. mjhs is built on the core values of compassion, dignity and respect, first established by the four brooklyn ladies in…

Health
7
The Pierpont Morgan Library

The Morgan Library & Museum celebrates and shares the history and process of human creativity from antiquity to the present day through the preservation, study, and interpretation of a dynamic and growing collection.

Education
8
North Shore University Hospital

North shore university hospital is part of northwell health ("northwell"), which strives to improve the health of the communities it serves and is committed to providing the highest quality clinical care; educating the current and future…

Health
9
Foundation for Jewish Philanthropies Inc

See schedule othe organization is a not-for-profit, public charity established in 1911 to provide for the quality and continuity of jewish life in western new york and around the world through private philanthropy. the foundation seeks,…

Philanthropy
10
The Baruch College Fund

The baruch college fund is an organization engaged in generating, encouraging and promoting the educational welfare of the students of the bernard m. baruch college of the city university of new york.

Education
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
Stony Brook Ophthalmology 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 Federation of Palm Beach County Inc; the most unlike its peers is Dave Thomas Foundation for Adoption. 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

21 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. 21 of the 35 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)
21/21
Grantees still filing
17/21
Grew since first funded

Where the money sits, by cause and then by grantee

University of Chicago: $950,000 · EducationUniversity of Chicago+1 more: $1,000 · EducationMOUNT SINAI HEALTH SYSTEM INC: $801,338 · Human ServicesMOUNT SINAI HEALTH SYSTEM …Individual grant recipient: $125,000 · OtherIndividual grant recipien…ADL FIGHTING HATE FOR GOOD: $100,000 · OtherADL FIGHTING HATE FOR GOO…CENTRAL SYNAGOGUE: $100,000 · OtherCENTRAL SYNAGOGUECOMMON GROUND: $75,000 · OtherCOMMON GROUNDTHE 92NY STREET: $75,000 · OtherTHE 92NY STREETCONVERSATION ON THE GREEN - COMMON GROUND: $50,000 · OtherCONVERSATION ON THE GREEN…NORTHWEST CONNECTICUT LAND CONSERVANCY INC: $50,000 · OtherNORTHWEST CONNECTICUT LAN…BIRTHRIGHT ISRAEL FOUNDATION: $45,000 · OtherBIRTHRIGHT ISRAEL FOUNDAT…Palm Beach County Food Bank Inc: $40,102 · Other+13 more: $133,332 · Other+13 moreJEWISH FEDERATION OF PALM BEACH COUNTY INC: $350,000 · PhilanthropyJEWISH FEDE…Town of Palm Beach United Way Inc: $15,000 · PhilanthropyCENTRAL PARK CONSERVANCY INC: $275,000 · Recreation & SportsSIMON WIESENTHAL CENTER INC: $100,000 · Arts & CultureTHE JEWISH MUSEUM: $30,000 · Arts & CultureNORTON MUSEUM OF ART INC: $25,000 · Arts & CultureLINCOLN CENTER FOR THE PERFORMING ARTS INC: $24,961 · Arts & CultureNEW YORK CITY CENTER INC: $10,000 · Arts & Culture+1 more: $3,000 · Arts & CultureCLAL-THE NATIONAL JEWISH CENTER FOR LEARNING AND LEADERSHIP INC: $100,000 · Religion
Education$951,000Human Services$801,338Other$793,434Philanthropy$365,000Recreation & Sports$275,000Arts & Culture$192,961Religion$100,000

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 Chicago: $950,000 over 1y, 0.0% of budgetMOUNT SINAI HEALTH SYSTEM INC: $801,338 over 2y, 0.5% of budgetJEWISH FEDERATION OF PALM BEACH COUNTY INC: $350,000 over 2y, 0.4% of budgetCENTRAL PARK CONSERVANCY INC: $275,000 over 1y, 0.1% of budgetSIMON WIESENTHAL CENTER INC: $100,000 over 2y, 0.2% of budgetCLAL-THE NATIONAL JEWISH CENTER FOR LEARNING AND LEADERSHIP INC: $100,000 over 1y, 2.2% of budgetNORTHWEST CONNECTICUT LAND CONSERVANCY INC: $50,000 over 1y, 0.5% of budgetBIRTHRIGHT ISRAEL FOUNDATION: $45,000 over 1y, 0.1% of budgetPalm Beach County Food Bank Inc: $40,102 over 1y, 0.2% of budgetTHE JEWISH MUSEUM: $30,000 over 1y, 0.1% of budgetNORTON MUSEUM OF ART INC: $25,000 over 1y, 0.1% of budgetDAVE THOMAS FOUNDATION FOR ADOPTION: $25,000 over 1y, 0.0% of budgetLINCOLN CENTER FOR THE PERFORMING ARTS INC: $24,961 over 1y, 0.0% of budgetTown of Palm Beach United Way Inc: $15,000 over 1y, 0.2% of budgetMONTEFIORE MEDICAL CENTER: $12,674 over 1y, 0.0% of budgetNEW YORK CITY CENTER INC: $10,000 over 1y, 0.0% of budgetMANHATTAN THEATRE CLUB INC: $3,000 over 1y, 0.0% of budgetBridgewater Land Trust: $2,500 over 1y, 0.9% of budgetThe Palm Beach Police and Fire Foundation Inc: $1,000 over 1y, 0.0% of budgetBRIDGEWATER FIRE DEPARTMENT INC: $1,000 over 1y, 0.3% of budgetBRIDGEWATER SCHOLARSHIP FOUNDATION INC: $1,000 over 1y, 1.0% 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 set of overlaps that mostly run through this funder rather than between each other.

Fidelity Investments …
Fidelity Investments Charitable Gift FundMA5.3× 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 Leni & Peter May Family Foundation funds: left to right is the share of its income from government, bottom to top the share from The Leni & Peter May Family Foundation. Bigger dots raise more.

2024
’20’21’22’23’24’25
no gov · 60%0%1%3%5%funder's share of their income ↑0%25%50%75%100%share of the org’s income from government →median 9%
  • Northwest Connecticut Land Conservancy Inc: 9% of income from government
  • Palm Beach County Food Bank Inc: 0% of income from government
no gov moneyreceives it· size = income
6get no government money at all
3report 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 Leni & Peter May Family Foundation?

Find your warmest path to The Leni & Peter May 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 35 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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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