· Private foundation
John Winthrop Charitable Trust
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 $10k24 grants · $32k
- $10k–50k8 grants · $186k
- $50k–250k7 grants · $431k
| Recipient | Amount |
|---|---|
| COASTAL COMMUNITY FOUNDATION | $69,035 |
| UNIVERSITY OF SC | $68,173 |
| DEXTER SOUTHFIELD SCHOOL | $65,553 |
| SALISBURY SCHOOL | $65,000 |
| CHARLESTON LIBRARY SOCIETY | $60,000 |
| A FATHER'S PLACE | $53,022 |
| CITADEL FOUNDATION | $50,532 |
| INDIAN MTN SCHOOL | $43,313 |
| AMERICAN COLLEGE OF THE BLDG ARTS | $36,000 |
| GILDER LEHRMAN INSTITUTE | $35,959 |
| TRIDENT UNITED WAY | $20,000 |
| MASSACHUSETTS HISTORICAL SOCIETY | $15,000 |
| COLLEGE OF CHARLESTON | $12,774 |
| WINDWOOD FAMILY SERVICES | $11,500 |
| EPIPHANY SCHOOL | $11,000 |
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 (FY18–24, $4k) land where the poverty rate runs at 13%, against an area that typically sits at 10%. 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.
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 +40% since the first grant, against +36% for the ones you funded once.
133 repeat relationships — 34 still active in FY2025, 99 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, 99% of grant dollars renewed an existing relationship; $6k 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
- ACAMERICAN COLLEGE OF THE BUILDING ARTS9× · 2017–2025 · $116k · revenue +133%
THE EPIPHANY SCHOOL INC9× · 2017–2025 · $114k · revenue +288%- WUWinthrop University Foundation7× · 2017–2024 · $108k · revenue +66%
Funded once
- IGIndividual grant recipientone grant, 2020 · $190k
- FOFRIENDS OF PUBLIC GARDENone grant, 2018 · $13k
- IGIndividual grant recipientone grant, 2019 · $11k
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 bac is committed to provide excellence in design education grounded in practice and accessible to diverse communities.
The schs mission is to expand, preserve, and make accessible our invaluable collection, and to encourage interest and pride in the rich history of our state.
Since 1775, the mission of Hampden-Sydney College has been to form good men and good citizens in an atmosphere of sound learning.
The mission of rhode island school of design, through its college and museum,is to educate its students and the public in the creation and (see schedule o)appreciation of works of art and design, to discover and transmit knowledge and to…
To preserve the unique character and natural resources of harvard.
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…
Saint anselm is a catholic, benedictine college providing all of its students a distinctive liberal arts education that incorporates opportunities for professional and career preparation. it does so in a learning community that encourages…
Dartmouth College educates the most promising students and prepares them for a lifetime of learning and of responsible leadership, through a faculty dedicated to teaching and the creation of knowledge.
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.
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 primary mission of furman as a liberal arts institution is to provide a distinctive education in fine arts, humanities, social sciences, mathematics and the sciences, as well as selected professional disciplines.
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 The Citadel Foundation and the most unlike its peers is The Order of Colonial Lords of Manors in America. 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 54 years old; the field is 21. You back the established end — and your money leans older still.
The field is 21% 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 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.
103 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. 103 of the 232 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
Showing your 200 largest grantees by grant value.
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 TRIDENT UNITED WAY ↗
- Who funds COASTAL COMMUNITY FOUNDATION OF SOUTH CAROLINA INC ↗
- Who funds AMERICAN COLLEGE OF THE BUILDING ARTS ↗
- Who funds THE EPIPHANY SCHOOL INC ↗
- Who funds Winthrop University Foundation ↗
- Who funds THE CITADEL FOUNDATION ↗
- Who funds DEXTER SOUTHFIELD INC ↗
- Who funds Charleston Library Society ↗
- Who funds SALISBURY SCHOOL INC ↗
- Who funds A Father's Place ↗
- Who funds FATHER TO FATHER INC ↗
- Who funds THE COLONIAL SOCIETY OF MASSACHUSETTS AMORY L LORING TREASURER ↗
- Who funds President and Fellows of Harvard College ↗
- Who funds INDIAN MOUNTAIN SCHOOL INC ↗
- Who funds Windwood Farm Home For Children Inc ↗
- Who funds PRIORY IN THE USA OF THE MOST VENERABLE ORDER OF THE HOSP / ST JOHN OF JERUSALEM ↗
- Who funds ST MARK'S SCHOOL OF SOUTHBOROUGH INC ↗
- Who funds University of South Carolina Educational Foundation ↗
- Who funds CHARLESTON DAY SCHOOLINC ↗
- Who funds PALMETTO PROJECT INC ↗
- Who funds Henry L Ferguson Museum ↗
- Who funds AMERICAN INSTITUTE FOR ECONOMIC RESEARCH ↗
- Who funds MASSACHUSETTS HISTORICAL SOCIETY ↗
- Who funds Children's Museum of the Lowcountry ↗
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: Coastal Community Foundation of South Carolina Inc · Post and Courier Foundation · Henry & Sylvia Yaschik Foundation Inc · The Joanna Foundation · John M Rivers Jr Foundation · Guffey Family Foundation · Dominion Energy Charitable Foundation · The Clyde and Summer Anderson Foundation · Magnolia Plantation Foundation · The Mark Elliott Motley Foundation Inc · Atlantic Services of Charleston Cha · Roy and Amanda Maybank 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 Winthrop Charitable Trust 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.
- Massachusetts Historical Society — 22% of income from government
- Community Foundation for Nantucket Inc — 10% of income from government
- President and Fellows of Harvard College — 7% of income from government
- Paul Revere Memorial Association — 1% of income from government
- Friends of the Public Garden Inc — 1% of income from government
- The Epiphany School 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 John Winthrop Charitable Trust?
Find your warmest path to John Winthrop Charitable Trust 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.