· 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.
What you funded, over time
Every grant placed by its stated purpose and the recipient’s mission, by year — across FY2020–2024.
Where the money goes
Your grants by size, and where they go.
By grant size · FY2024
- Under $10k7 grants · $11k
- $10k–50k6 grants · $120k
- $50k–250k8 grants · $750k
- $250k+1 grant · $275k
| Recipient | Amount |
|---|---|
| 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 |
| SIMON WIESENTHAL CENTER | $50,000 |
| NORTHWEST CONNECTICUT LAND CONSERVANCY | $50,000 |
| CONVERSATION ON THE GREEN - COMMON GROUND | $50,000 |
| THE JEWISH MUSEUM | $30,000 |
| NORTON MUSEUM OF ART | $25,000 |
| DAVE THOMAS FOUNDATION FOR ADOPTION | $25,000 |
| METROPOLITAN OPERA | $15,000 |
| TOWN OF PALM BEACH UNITED WAY | $15,000 |
| NEW YORK CITY CENTER | $10,000 |
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.
Your 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 your grants land in higher-need ZIPs.
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.
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.
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.
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…
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
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)
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…
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.
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…
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.
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…
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,…
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.
Provide clinical instruction to and supervision of medical school students, interns and residents and, incident thereto, rendering professional services.
Provide clinical instruction to and supervision of medical school students, interns and residents and, incident thereto, rendering professional services.
For reference, the grantee most central to the portfolio’s shape is Jewish Federation of Palm Beach County Inc and 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.
Your grantees are a median of 52 years old; the field is 16. You back the established end — and your money leans older still.
The field is 20% startups (under 5 years old) — 9% of your grantees by number, and just 0% of your money.
The orgs you fund almost never close — 0.0% lost their exemption, against 12% of the field you don’t fund.
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.
21 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. 21 of the 35 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.
Where your money sits — by cause, then by grantee
Each org by its size and your share of it — top-left is where you’re load-bearing
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.
- Who funds University of Chicago ↗
- Who funds MOUNT SINAI HEALTH SYSTEM INC ↗
- Who funds JEWISH FEDERATION OF PALM BEACH COUNTY INC ↗
- Who funds CENTRAL PARK CONSERVANCY INC ↗
- Who funds CLAL-THE NATIONAL JEWISH CENTER FOR LEARNING AND LEADERSHIP INC ↗
- Who funds SIMON WIESENTHAL CENTER INC ↗
- Who funds NORTHWEST CONNECTICUT LAND CONSERVANCY INC ↗
- Who funds BIRTHRIGHT ISRAEL FOUNDATION ↗
- Who funds Palm Beach County Food Bank Inc ↗
- Who funds THE JEWISH MUSEUM ↗
- Who funds DAVE THOMAS FOUNDATION FOR ADOPTION ↗
- Who funds NORTON MUSEUM OF ART INC ↗
- Who funds LINCOLN CENTER FOR THE PERFORMING ARTS INC ↗
- Who funds Town of Palm Beach United Way Inc ↗
- Who funds MONTEFIORE MEDICAL CENTER ↗
- Who funds NEW YORK CITY CENTER INC ↗
- Who funds MANHATTAN THEATRE CLUB INC ↗
- Who funds Bridgewater Land Trust ↗
- Who funds The Palm Beach Police and Fire Foundation Inc ↗
- Who funds BRIDGEWATER FIRE DEPARTMENT INC ↗
- Who funds BRIDGEWATER SCHOLARSHIP FOUNDATION INC ↗
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 set of overlaps that mostly run through you, not between each other.
Open a dossier: Fidelity Investments Charitable Gift Fund
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 The Leni & Peter May Family 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.
- Northwest Connecticut Land Conservancy Inc — 9% of income from government
- Palm Beach County Food Bank Inc — 0% of income from government
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.
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.