· Private foundation
The Leslie Miller and Richard Worley Foundation
Its FY2023 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 clustered by its grantee’s IRS cause code (NTEE), by year — across FY2018–2023.
Where the money goes
Your grants by size, and where they go.
By grant size · FY2023
- Under $10k73 grants · $128k
- $10k–50k24 grants · $457k
- $50k–250k6 grants · $724k
- $250k+5 grants · $6.0M
| Recipient | Amount |
|---|---|
| PHILADELPHIA MUSEUM OF ART | $3,183,552 |
| MOUNT HOLYOKE COLLEGE | $1,000,000 |
| Individual grant recipient | $807,140 |
| PENNSYLVANIA HORTICULTURAL SOCIETY | $558,000 |
| CALDER GARDENS CO BARNES FOUNDATION | $500,000 |
| AMERICAN PHILOSOPHICAL SOCIETY | $177,500 |
| OPERA COMPANY OF PHILADELPHIA | $175,000 |
| TWO RIVER THEATER COMPANY | $115,000 |
| 1 LOVE FOR ANIMALS | $106,000 |
| JOHNS HOPKINS CTR FOR INNOVATIVE MEDICINE | $100,000 |
| THE LENFEST INSTITUTE FOR JOURNALISM | $50,000 |
| BARNES FOUNDATION | $35,000 |
| PLAY ON PHILLY | $35,000 |
| STCHRISTOPHER'S CHURCH | $33,750 |
| ACADEMY OF MUSIC RESTORATION FUND | $30,600 |
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 (FY18–23, $76k) land where the poverty rate runs at 17%, against an area that typically sits at 8%. 99% 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 +28% since the first grant, against +24% for the ones you funded once.
121 repeat relationships — 92 still active in FY2023, 29 since wound down; 16 grantees were first funded in FY2023 (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 FY2023, 99% of grant dollars renewed an existing relationship; $73k 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
- PMPHILADELPHIA MUSEUM OF ART5× · 2018–2023 · $7.6M · revenue +28%
PHILADELPHIA ORCHESTRA ASSOCIATION5× · 2018–2023 · $5.9M · revenue +59%
THE TRUSTEES OF MOUNT HOLYOKE COLLEGE5× · 2018–2023 · $1.2M · revenue +11%
Funded once
- KCKIMMEL CENTER INCgraduatedone grant, 2018 · $104k · revenue +43%
- YBYOTH BUILD PHILLY CHARTER SCHOOLone grant, 2022 · $100k
- TOTRUSTEES OF UNIVERSITY OF PENSYLVANIAone grant, 2020 · $50k
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 western pennsylvania conservancy protects and restores exceptional places to provide our region with clean waters and healthy forests, wildlife and natural areas for the benefit of present and future generations. the conservancy…
The zoological society of pittsburgh is dedicated to being a leader in, and significant contributor to, the conservation of endangered and threatened species. the society provides an enjoyable family experience that fosters understanding,…
World animal protection is a global organization working to end factory farming and wildlife exploitation. we expose cruel systems, promote animal-friendly alternatives, and influence policy change. for over 75 years, we've been rewriting…
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 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."
Rainforest trust saves endangered wildlife and protects our planet by creating rainforest reserves through partnerships, community engagement, and donor support.
Visit philadelphia is our name and our mission. as the region's official tourism marketing agency, we build greater philadelphia's image, drive visitation and boost the economy.
Panthera's mission is the conservation of the world's 40 wild cat species, many of which are endangered or threatened. panthera develops, implements and oversees wild cat conservation strategies on a global scale.
We improve quality of life by enhancing and stewarding pittsburgh's parks in partnership with the community.
To protect and provide for endangered species, to conduct avian research and provide information as a national resource, to provide a recreational and educational experience for the general public and to promote an appreciation of natural…
The wildlife society's mission is to inspire, empower, and enable wildlife professionals to sustain wildlife populations and habitats through science-based management and conservation.
Pidc plans and implements economic development initiatives (see schedule o) which enhance the competitive environment, generate jobs and produce higher tax ratables throughout philadelphia.
For reference, the grantee most central to the portfolio’s shape is Greater Philadelphia Cultural Alliance and the most unlike its peers is Samuel D Cozen Memorial Fund. 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 41 years old; the field is 19. You back the established end — and your money leans older still.
The field is 18% startups (under 5 years old) — 1% of your grantees by number, and just 0% of your money.
The orgs you fund almost never close — 0.7% lost their exemption, against 9% 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.
152 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. 152 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 PHILADELPHIA MUSEUM OF ART ↗
- Who funds PHILADELPHIA ORCHESTRA ASSOCIATION ↗
- Who funds THE TRUSTEES OF MOUNT HOLYOKE COLLEGE ↗
- Who funds THE PENNSYLVANIA HORTICULTURAL SOCIETY ↗
- Who funds OPERA PHILADELPHIA ↗
- Who funds Colonial Williamsburg Foundation ↗
- Who funds TWO RIVER THEATRE COMPANY INC ↗
- Who funds DREXEL UNIVERSITY ↗
- Who funds FREE LIBRARY OF PHILADELPHIA FOUNDATION ↗
- Who funds AMERICAN PHILOSOPHICAL SOCIETY ↗
- Who funds TRUSTEES OF THE UNIVERSITY OF PENNSYLVANIA ↗
- Who funds THE LENFEST INSTITUTE FOR JOURNALISM SPECIAL ASSET FUND OF TPF ↗
- Who funds THE BARNES FOUNDATION ↗
- Who funds THE PENNSYLVANIA BALLET ASSOCIATION ↗
- Who funds THE PHILADELPHIA FOUNDATION ↗
- Who funds THE PENNSYLVANIA INNOCENCE PROJECT ↗
- Who funds Philabundance ↗
- Who funds PLAY ON PHILLY ↗
- Who funds THE FUND FOR THE SCHOOL DISTRICT OF PHILADELPHIA ↗
- Who funds KIMMEL CENTER INC ↗
- Who funds COMMITTEE OF SEVENTY ↗
- Who funds PENNSYLVANIA BREAST CANCER COALITION ↗
- Who funds PENNSYLVANIA ACADEMY OF THE FINE ARTS ↗
- Who funds Williams College ↗
- Who funds Temple University - Of The Commonwealth System of Higher Education ↗
- Who funds WHYY INC ↗
- Who funds BEARDED LADIES CABARET ↗
- Who funds THE FRANKLIN INSTITUTE ↗
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 · Independence Foundation · The Philadelphia Foundation · Henry Dolfinger 2 Trust Uw · Lindback Cr & Mf Foundation Tw Main · The Barra Foundation Inc · The Philadelphia Cultural Fund Inc · The Snider Foundation · Connelly Foundation · The Lida Foundation · PC Fund for Animals Charitable Tr · The Cigna Group 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 The Leslie Miller and Richard Worley 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.
- Boys & Girls Club of Martin County — 2% of income from government
- The Trustees of Mount Holyoke College — 1% of income from government
- Two River Theatre Company Inc — 0% of income from government
- Rutgers University Foundation — 0% of income from government
- Williams 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 The Leslie Miller and Richard Worley Foundation?
Find your warmest path to The Leslie Miller and Richard Worley 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.