· Private foundation
William K Stewart Sr 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 FY2020–2025.
Where the money goes
Your grants by size, and where they go.
| Recipient | Amount |
|---|---|
| OLD ST JOSEPH'S CHURCH | $3,000 |
| STROUD WATER RESEARCH CTR INC | $2,500 |
| CAMP DREAMCATCHER | $1,500 |
| NATURAL LANDS TRUST | $1,500 |
| UNIVERSITY OF PENNSYLVANIA | $1,100 |
| CHESTER COUNTY HOSPITAL FOUNDATION | $1,000 |
| BEYOND HUNGER | $1,000 |
| THE INSIDE-OUT CENTER | $1,000 |
| ARDEN THEATRE COMPANY | $1,000 |
| THEATRE EXILE COMPANY | $1,000 |
| GEORGE W NEBINGER SCHOOL | $1,000 |
| BRANDYWINE CONSERVANCY | $1,000 |
| PENNSYLVANIA PRISON SOCIETY | $1,000 |
| GEORGETOWN UNIVERSITY | $1,000 |
| MARYLAND PROVINCE FUND | $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 (FY20–25, $11k) land where the poverty rate runs at 8%, against an area that typically sits at 11%. 18% of those dollars go to grantees based in above-average-need neighborhoods. Your grants skew toward lower-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 +31% since the first grant, against +5% for the ones you funded once.
29 repeat relationships — 24 still active in FY2025, 5 since wound down; 6 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, 84% of grant dollars renewed an existing relationship; $5k 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
- BCBrandywine Conservancy & Museum of Art6× · 2020–2025 · $12k · revenue +527%
- SWSTROUD WATER RESEARCH CENTER6× · 2020–2025 · $10k · revenue +79%
- CDCAMP DREAMCATCHER6× · 2020–2025 · $9k · revenue +37%
Funded once
- SISARAH'S INNone grant, 2024 · $2k · revenue -2%
- NNEDAone grant, 2024 · $680
GARY SINISE FOUNDATIONone grant, 2024 · $660 · revenue +5%
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 children's hospital of philadelphia, the oldest hospital in the united states dedicated exclusively to pediatrics, strives to be the world leader in the advancement of health care for children by integrating excellent patient care,…
The mission is "to understand the natural world and inspire everyone to care for it." the academy implements its mission through understanding the diversity of life; developing and applying science to protect the environment; and informing…
Wp theater is the nation's oldest and largest theater company dedicated to developing, producing, and promoting the work of women+ at every stage of their careers. for over four decades we have served as leaders of a global movement…
As a diverse community of learners, we cultivate integrity, curiosity, connection and resilience.
Wilson college empowers students to be confident and critical thinkers, creative visionaries, effective communicators, honorable leaders, and agents of justice.
Western new england university, a comprehensive private institution with a tradition of excellence in teaching and scholarship and a commitment to service, awards undergraduate, master's, and doctoral degrees in various departments from…
Smith college educates women of promise for lives of distinction and purpose. a college of and for the world, smith college links the power of the liberal arts to excellence in research and scholarship, developing leaders for society's…
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."
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…
Wake Forest University, a 501(c)(3) institution of higher education, is dedicated to the pursuit of excellence in the liberal arts and in graduate and professional education. The organization is comprised of seven constituent parts: Wake…
Drexel university fulfills its founder's vision of preparing each new generation of students for productive professional and civic lives while also focusing its collective expertise on solving society's greatest problems. drexel is an…
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
For reference, the grantee most central to the portfolio’s shape is Fulton Theatre Company and the most unlike its peers is The Smart 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 42 years old; the field is 17. You back the established end — and your money leans older still.
The field is 21% startups (under 5 years old) — 4% of your grantees by number, and just 1% 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.
28 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. 28 of the 43 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 Brandywine Conservancy & Museum of Art ↗
- Who funds STROUD WATER RESEARCH CENTER ↗
- Who funds CAMP DREAMCATCHER ↗
- Who funds THEATRE EXILE COMPANY ↗
- Who funds ARDEN THEATRE COMPANY ↗
- Who funds GEORGETOWN UNIVERSITY ↗
- Who funds Natural Lands Trust Inc ↗
- Who funds 1812 PRODUCTIONS INC ↗
- Who funds TRUSTEES OF THE UNIVERSITY OF PENNSYLVANIA ↗
- Who funds PENNSYLVANIA PRISON SOCIETY ↗
- Who funds LCH Health and Community Services ↗
- Who funds MILAGRO HOUSE INC ↗
- Who funds CONNECTICUT COLLEGE ↗
- Who funds FULTON THEATRE COMPANY ↗
- Who funds Operation Warm Inc ↗
- Who funds SARAH'S INN ↗
- Who funds CHESTER COUNTY HOSPITAL FOUNDATION ↗
- Who funds WORLD WILDLIFE FUND INC ↗
- Who funds THE LAND CONSERVANCY FOR SOUTHERN CHESTER COUNTY ↗
- Who funds KENNETT LIBRARY ↗
- Who funds BEYOND HUNGER ↗
- Who funds WHYY INC ↗
- Who funds SERVIAM GIRLS ACADEMY INC ↗
- Who funds GARY SINISE FOUNDATION ↗
- Who funds Wild Earth Allies Inc ↗
- Who funds THE CHILDREN'S HOSPITAL OF PHILADELPHIA FOUNDATION ↗
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 William Penn Foundation · The Philadelphia Foundation · Cabot-Kjellerup Foundation · Independence Foundation · Connelly Foundation · The Dansko Foundation Inc · Chester County Community Foundation · United Way of Greater Philadelphia and Southern New Jersey · Jpmorgan Chase Foundation · Forney Family Foundation Inc · The Oxford Area Foundation · Sharp 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 William K Stewart Sr 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.
- Serviam Girls Academy Inc — 2% of income from government
- Connecticut College — 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 William K Stewart Sr Foundation?
Find your warmest path to William K Stewart Sr 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.