· Private foundation
John & Amy Griffin 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 FY2017–2024.
Where the money goes
Your grants by size, and where they go.
By grant size · FY2024
- Under $10k6 grants · $30k
- $10k–50k20 grants · $290k
- $50k–250k15 grants · $1.5M
- $250k+5 grants · $6.3M
| Recipient | Amount |
|---|---|
| IMENTOR | $3,825,000 |
| THE METROPOLITAN MUSEUM OF ART | $1,300,000 |
| ICAHN SCHOOL OF MEDICINE AT MOUNT SINAI | $525,000 |
| ROBIN HOOD FOUNDATION | $450,000 |
| THOMAS JEFFERSON FOUNDATION | $250,000 |
| VIRGINIA ATHLETICS FOUNDATION | $235,000 |
| NATIONAL BLACK THEATRE WORKSHOP | $200,000 |
| NATIONAL MUSEUM OF AFRICAN AMERICAN | $200,000 |
| RIVERDALE COUNTRY SCHOOL | $150,000 |
| THE SHED BLOOMBERG BUILDING | $110,000 |
| UCSF FOUNDATION | $100,000 |
| Individual grant recipient | $100,000 |
| HOSPITAL FOR SPECIAL SURGERY | $55,000 |
| MUSEUM OF FINE ART BOSTON | $50,000 |
| HARLEM SCHOOL OF THE ARTS | $50,000 |
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 (FY17–24, $607k) land where the poverty rate runs at 16%, against an area that typically sits at 11%. 92% 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.
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 +49% since the first grant, against +8% for the ones you funded once.
55 repeat relationships — 22 still active in FY2024, 33 since wound down; 22 grantees were first funded in FY2024 (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 FY2024, 81% of grant dollars renewed an existing relationship; $1.6M 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
- IIIMENTOR INC7× · 2017–2024 · $9.7M · revenue +83%
- RHROBIN HOOD FOUNDATION8× · 2017–2024 · $5.0M · revenue +49%
- TSTHE SPENCE SCHOOL7× · 2017–2023 · $2.3M · revenue +12%
Funded once
- IGIndividual grant recipientone grant, 2023 · $121k
- UCUVA CENTER FOR POLITICSone grant, 2017 · $100k
- AMAMER MUSEUM OF NATURAL HISTORYone grant, 2019 · $100k
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.
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.
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.
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.
The institute for advanced study (the institute) is one of the world's leading centers for theoretical research and intellectual inquiry. see schedule o.
To educate students to be ethical and socially responsible leaders in a global community.
New york school of interior design provides the most innovative, immersive, and transformative interior design education in the world, demonstrating the impact of professionally designed interiors on the health, happiness, and well-being…
Provide an independent forum for those who dare to read, think, speak, and write to advance the professional, literary, and scientific understanding of sea power and other issues critical to global security.
Nysci's mission is to nurture generations of passionate learners, critical thinkers, and active citizens through design make play - an approach to learning and engagement that is deeply rooted in research on stem learning and guides the…
The graduate center foundation is committed to promoting and safe-guarding the success of the graduate center by raising funds and managing and investing donations for use by the graduate center. the board of trustees of the foundation…
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…
The bac is committed to provide excellence in design education grounded in practice and accessible to diverse communities.
The mission of the jewish museum is to collect, preserve, exhibit and interpret art and jewish culture. see schedule o for more information.
For reference, the grantee most central to the portfolio’s shape is Girls Incorporated of New York City and the most unlike its peers is David B Lynch Foundation. 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 32 years old; the field is 18. You back the established end — and your money leans older still.
The field is 19% startups (under 5 years old) — 4% of your grantees by number, and just 0% of your money.
The orgs you fund almost never close — 0.0% lost their exemption, against 10% 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.
95 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. 95 of the 139 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 IMENTOR INC ↗
- Who funds ROBIN HOOD FOUNDATION ↗
- Who funds THE SPENCE SCHOOL ↗
- Who funds METROPOLITAN MUSEUM OF ART ↗
- Who funds RIVERDALE COUNTRY SCHOOL INC ↗
- Who funds SIGNATURE THEATRE COMPANY INC ↗
- Who funds American Museum of Natural History ↗
- Who funds THE BOYS' CLUB OF NEW YORK ↗
- Who funds ICAHN SCHOOL OF MEDICINE AT MOUNT SINAI ↗
- Who funds VIRGINIA STUDENT AID FOUNDATION INC ↗
- Who funds HARLEM CHILDREN'S ZONE INC ↗
- Who funds THOMAS JEFFERSON FOUNDATION INC ↗
- Who funds SUCCESS ACADEMY CHARTER SCHOOLS INC ↗
- Who funds THE ONE LOVE FOUNDATION IN HONOR OF YEARDLEY LOVE INC ↗
- Who funds THE SOUTHAMPTON HOSPITAL FOUNDATION INC ↗
- Who funds THE UNIVERSITY OF VIRGINIA MCINTIRE SCHOOL OF COMMERCE FOUNDATION ↗
- Who funds THE NATIONAL BLACK THEATRE WORKSHOP ↗
- Who funds GOOD PLUS FOUNDATION INC ↗
- Who funds ROGER FEDERER CHARITABLE FUND INC ↗
- Who funds FOUNDATION FOR INDIVIDUAL RIGHTS AND EXPRESSION INC ↗
- Who funds UNIVERSITY OF CALIFORNIA SAN FRANCISCO FOUNDATION ↗
- Who funds SAVE VENICE INC ↗
- Who funds Teach for America Inc ↗
- Who funds HETERODOX ACADEMY ↗
- Who funds THE 19TH NEWS ↗
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: The Goldman Sachs Charitable Gift Fund · Jewish Communal Fund · Gs Donor Advised Philanthropy Fund for Wealth Management Inc · The Hyde and Watson Foundation · The New York Community Trust · Booth Ferris Foundation Xxxxx4008 · Viking Global Foundation Inc · National Philanthropic Trust · The Ford Foundation · Carson Family Charitable Trust · The Chase and Stephanie Coleman Foundation · The Ayco Charitable Foundation
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 John & Amy Griffin 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.
- Dana-Farber Cancer Institute Inc — 7% of income from government
- The Institute of Contemporary Art Inc — 1% 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 John & Amy Griffin Foundation?
Find your warmest path to John & Amy Griffin 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.