· Private foundation
The Mat Charitable Foundation Inc
Its FY2025 filing reports that it accepted unsolicited grant applications.
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 $10k7 grants · $22k
- $10k–50k3 grants · $65k
- $50k–250k1 grant · $50k
| Recipient | Amount |
|---|---|
| RAMAPO FOR CHILDREN | $50,000 |
| US SKI AND SNOWBOARD TEAM FOUNDATION | $30,000 |
| GUILD HALL OF EAST HAMPTON | $25,000 |
| CENTRAL PARK CONSERVANCY | $10,000 |
| SAINT DAVID'S SCHOOL-HORIZONS | $5,300 |
| CHALLENGED ATHLETES FOUNDATION | $5,000 |
| AMEX - SH HOSPITAL FOUNDATION | $4,766 |
| THE NEW 42ND STREET INC | $3,500 |
| PREP FOR PREP | $1,000 |
| UNTERMYER GARDENS CONSERVACY | $1,000 |
| THE BREARLEY SCHOOL | $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 (FY17–25, $40k) land where the poverty rate runs at 15%, against an area that typically sits at 10%. 90% 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 +30% since the first grant, against +29% for the ones you funded once.
36 repeat relationships — 8 still active in FY2025, 28 since wound down; 3 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, 92% of grant dollars renewed an existing relationship; $11k 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
- CPCENTRAL PARK CONSERVANCY INC9× · 2017–2025 · $659k · revenue +76%
- GHGUILD HALL OF EAST HAMPTON INC9× · 2017–2025 · $205k · revenue +179%
Cornell University8× · 2017–2024 · $143k · revenue +59%
Funded once
- RHREMA HORT MANN FOUNDATION INCone grant, 2021 · $10k · revenue +2%
- MMMETROPOLITAN MUSEUM OF ARTgraduatedone grant, 2020 · $5k · revenue +119%
- CRCHRISTOPHER REEVE FOUNDATIONgraduatedone grant, 2022 · $3k · revenue +40%
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 museum's mission statement is: "to discover, interpret, and disseminate - through scientific research and education - knowledge about human cultures, the natural world, and the universe."
The institute for advanced study (the institute) is one of the world's leading centers for theoretical research and intellectual inquiry. see schedule o.
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…
Sanford burnham prebys medical discovery institute's mission is to advance the biomedical sciences by cultivating the next generation of scientific leaders, providing meaningful opportunities for researchers of all backgrounds to learn,…
To educate students to be ethical and socially responsible leaders in a global community.
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…
We educate the next generation of leaders to improve the health of our society.
Dickinson college provides a useful, innovative and interdisciplinary education in the liberal arts and sciences to prepare students to lead rich and fulfilling lives of engaged global citizenship
Leadership in the prevention, treatment, and cure of cancer through excellence, vision and cost effectiveness in patient care, outreach programs, research, and education.
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…
For reference, the grantee most central to the portfolio’s shape is Children's Museum of Manhattan and the most unlike its peers is Ocean Genome Atlas Project. 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 36 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) — 2% 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.
49 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. 49 of the 72 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 CENTRAL PARK CONSERVANCY INC ↗
- Who funds RAMAPO FOR CHILDREN INC ↗
- Who funds GUILD HALL OF EAST HAMPTON INC ↗
- Who funds Cornell University ↗
- Who funds SAINT DAVID'S SCHOOL ↗
- Who funds THE BREARLEY SCHOOL ↗
- Who funds ETHICAL CULTURE FIELDSTON SCHOOL ↗
- Who funds PUPPIES BEHIND BARS INC ↗
- Who funds THE NEW 42ND STREET INC ↗
- Who funds CIVIC BUILDERS INC ↗
- Who funds JERICHO PROJECT ↗
- Who funds THE MAIDSTONE CHARITABLE TRUST ↗
- Who funds TRUSTEES OF THE UNIVERSITY OF PENNSYLVANIA ↗
- Who funds REMA HORT MANN FOUNDATION INC ↗
- Who funds NEW YORK STEM CELL FOUNDATION INC ↗
- Who funds PREP FOR PREP ↗
- Who funds GLOBAL POVERTY PROJECT INC ↗
- Who funds WORLD BICYCLE RELIEF NFP ↗
- Who funds MDRC ↗
- Who funds CHALLENGED ATHLETES INC ↗
- Who funds GLOBALGIVING FOUNDATION INC ↗
- Who funds METROPOLITAN MUSEUM OF ART ↗
- Who funds SOUTH FORK NATURAL HISTORY SOCIETY ↗
- Who funds ELEANOR WHITMORE EARLY CHILDHOOD CENTER INC ↗
- Who funds DAVID LYNCH FOUNDATION FOR CONSCIOUSNESS -BASED EDUCATION AND WORLD PEACE ↗
- Who funds CHRISTOPHER REEVE FOUNDATION ↗
- Who funds AMERICAN CANCER SOCIETY INC ↗
- Who funds Equality Now 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 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 · The Thomas J Edelman Foundation · Jpmorgan Chase Foundation · American Express Foundation · National Philanthropic Trust · Gs Donor Advised Philanthropy Fund for Wealth Management Inc · The New York Community Trust · Community Foundation of New Jersey · Rockefeller Philanthropy Advisors Inc · Vanguard Charitable Endowment Program · The Bank of America Charitable 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 The Mat Charitable Foundation Inc 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.
- Christopher Reeve Foundation — 49% of income from government
- Chadd Inc Children and Adults With Attention Deficit/Hyperactivity Disorder — 31% 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 Mat Charitable Foundation Inc?
Find your warmest path to The Mat Charitable Foundation Inc 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.