· Private foundation
Gertrude B & Mortimer May 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.
What you funded, over time
Every grant placed by its stated purpose and the recipient’s mission, by year — across FY2017–2025.
Where the money goes
Your grants by size, and where they go.
By grant size · FY2025
- Under $10k26 grants · $31k
- $10k–50k1 grant · $10k
| Recipient | Amount |
|---|---|
| St Paul's Lutheran Church | $10,000 |
| Individual grant recipient | $2,710 |
| NAMI | $2,000 |
| Friends of Israeli Defense Fund | $2,000 |
| Individual grant recipient | $2,000 |
| CAMERA | $2,000 |
| Urban Ministries of Durham | $2,000 |
| American Jewish Committee | $2,000 |
| Washington Institute for Near East | $2,000 |
| Prospect Park Alliance | $1,500 |
| Vassar College | $1,000 |
| Individual grant recipient | $1,000 |
| UNCTV | $1,000 |
| TROSA | $1,000 |
| American Friends of Magen David Ado | $1,000 |
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 (FY17–22, $18k) land where the poverty rate runs at 14%, against an area that typically sits at 11%. 56% 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.
Which US states your grants reach
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.
Where the work is directed
The same grants, placed two ways — where each recipient sits, and where its stated purpose earmarks the money.
About 71% of Gertrude B & Mortimer May Foundation’s grant dollars are earmarked, by their stated purpose, for a different county than the recipient’s own address — money that lands at a nonprofit in one place but is meant to do its work in another.
Recipient view: each grant at its grantee’s ZIP, mapped to a county. Directed view: each grant at the county its stated purpose names, falling back to the recipient’s county when the purpose names no place; US grants only. A county shows only if it carries the top 95% of that view’s dollars. Purposes are read from the foundation’s own 990 grant descriptions.
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.
And the relationships you keep tend to grow: grantees you re-up on have seen median revenue of +51% since the first grant, against +46% for the ones you funded once.
48 repeat relationships — 23 still active in FY2025, 25 since wound down; 4 grantees were first funded in FY2025 (too recent to call).
How the two cohorts compare
Organizations
Total granted
Median revenue growth · since first grant
Still filing today
New vs renewed · share of each year
In FY2025, 93% of grant dollars renewed an existing relationship; $3k went to new ones.
Where new relationships form · theme of each grantee’s first grant
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
- PPPROSPECT PARK ALLIANCE INC7× · 2017–2025 · $38k · revenue +189%
- VCVASSAR COLLEGE9× · 2017–2025 · $24k · revenue +19%
Urban Ministries of Durham Inc9× · 2017–2025 · $20k · revenue +65%
Funded once
- HAHillel at Stanfordone grant, 2020 · $3k
- JFJewish Foundation of Nashvilleone grant, 2017 · $2k
- IGIndividual grant recipientone grant, 2020 · $2k
Repeat = funded in two or more distinct years; growth and survival are read from each grantee’s own subsequent IRS filings.
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.
The mission of the jewish museum is to collect, preserve, exhibit and interpret art and jewish culture. see schedule o for more information.
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.
Biu produces students who excel in the sciences, humanities, law, engineering, business & the arts.
Chartered by a unanimous act of congress, the museum is america's national institution for the documentation, study, interpretation, and education of holocaust history and serves as our country's memorial to the victims of the holocaust.…
Operate a state-of-the-art, world-class genomic research center that creates and uses advanced genomics to understand the genetic basis of disease. for more information, see schedule o.
To educate students to be ethical and socially responsible leaders in a global community.
The bac is committed to provide excellence in design education grounded in practice and accessible to diverse communities.
The institute for advanced study (the institute) is one of the world's leading centers for theoretical research and intellectual inquiry. see schedule o.
The new york botanical garden is a museum of plants and a scientific research center devoted to the study of plants and their uses. it is the garden's mission to improve public understanding of the natural world, horticulture, and the…
Fordham university, the jesuit university of new york, is committed to the discovery of wisdom and the transmission of learning, through research and through education of the highest quality. for more information, see schedule o.
The university is composed of several colleges and schools providing undergraduate, graduate, professional and post-doctoral education and training and research and clinical programs.
The University of New Haven is a student-centered comprehensive university with an emphasis on excellence in liberal arts and professional education. Our mission is to prepare our students to lead purposeful and fulfilling lives in a…
For reference, the grantee most central to the portfolio’s shape is Brooklyn Community Foundation and the most unlike its peers is Wildlife Conservation Society. Resemblance is measured on each organization’s own IRS 990 mission text; it reflects how work is described, not its quality or impact.
For each theme you fund, this compares how the sector’s money is shifting with how your own giving is shifting.
Sector change and giving change are each shown relative to their own range, growing (right) or shrinking (left); both normalized, so inflation isn’t mistaken for growth.
Your grantees are a median of 44 years old; the field is 14. You back the established end — and your money leans older still.
The field is 24% startups (under 5 years old) — 0% of your grantees by number, and just 0% of your money.
The orgs you fund almost never close — 0.0% lost their exemption, against 14% 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.
42 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. 42 of the 80 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 AMERICAN SOCIETY FOR TECHNION ISRAEL INSTITUTE OF TECHNOLOGY INC ↗
- Who funds PROSPECT PARK ALLIANCE INC ↗
- Who funds VASSAR COLLEGE ↗
- Who funds Urban Ministries of Durham Inc ↗
- Who funds NAMI National ↗
- Who funds COMMITTEE FOR ACCURACY IN MIDDLE EAST REPORTING IN AMERICA INC ↗
- Who funds TRIANGLE RESIDENTIAL OPTIONS FOR SUBSTANCE ABUSERS INC ↗
- Who funds AMERICAN FRIENDS OF MAGEN DAVID ADOM ↗
- Who funds NAVY-MARINE CORPS RELIEF SOCIETY ↗
- Who funds DUKE UNIVERSITY ↗
- Who funds AMERICAN JEWISH COMMITTEE ↗
- Who funds JEWISH INSTITUTE FOR NATIONAL SECURITY OF AMERICA ↗
- Who funds YOUNG MEN'S CHRISTIAN ASSOCIATION OF GREATER NEW YORK ↗
- Who funds PROJECT NIGHT NIGHT ↗
- Who funds ORANGE COUNTY LITERACY COUNCIL INC ↗
- Who funds THE DURHAM JAZZ WORKSHOP ↗
- Who funds ZIONIST ORGANIZATION OF AMERICA ↗
- Who funds SIMON WIESENTHAL CENTER INC ↗
- Who funds THEATRE FOR A NEW AUDIENCE INC ↗
- Who funds BRIC ARTS MEDIA BKLYN INC ↗
- Who funds NORTH CAROLINA MUSEUM OF ART FOUNDATION ↗
- Who funds THE AMERICAN SOCIETY FOR THE PREVENTION OF CRUELTY TO ANIMALS ↗
- Who funds American Museum of Natural History ↗
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.
Open a dossier: Triangle Community Foundation Inc · American Express Foundation · Jpmorgan Chase Foundation · Tides Foundation · Vanguard Charitable Endowment Program · National Philanthropic Trust · The Pfizer Foundation Inc · The Bank of America Charitable Foundation Inc · American Endowment Foundation · Morgan Stanley Global Impact Funding Trust Inc · Network for Good · American Online Giving 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 Gertrude B & Mortimer May 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 or a single department — and drag the year to watch it move.
- Trustees of Boston College — 3% 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 Gertrude B & Mortimer May Foundation?
Find your warmest path to Gertrude B & Mortimer May 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.