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· 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.

$7.4M
Granted FY2023
108
Grants FY2023
18
States reached
$3.2M
Largest
01What it funds
0197% classified

What it funded, over time

Every grant placed by its stated purpose and the recipient’s mission, by year, FY2018 to 2023.

Arts & Culture$18MEducation$2.5MFood & Nutrition$1.1MAnimals$777kHealth$641kPhilanthropy$218kReligion$210kEnvironment$207kOther$0
02FY2023 · 108 grants

Where the money goes

Grants by size, and the largest recipients.

By grant size · FY2023

  • Under $10k73 grants · $128k
  • $10k–50k24 grants · $457k
  • $50k–250k6 grants · $724k
  • $250k+5 grants · $6.0M
$2,500
Median grant
18
States reached
$13M
Total assets
Largest grants
RecipientAmount
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
02The need
03

Does the money reach high-need areas?

Each grant placed by the hardship in its grantee’s ZIP, against the area’s typical level.

show:

Its 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 its grants land in higher-need ZIPs.

area typical 8%ORPHAN ACRES: $150 → 16%ORPHAN ACRES: $100 → 16%GEMMA SERVICES: $500 → 7%GEMMA SERVICES: $350 → 7%AMERICAN RED CROSS: $20k → 14%AMERICAN RED CROSS: $10k → 14%AMERICAN RED CROSS: $10k → 14%PROJECT HOME: $20k → 22%PROJECT HOME: $11k → 22%PROJECT HOME: $2k → 22%THE CAT COLLABORATIVE: $1k → 22%ABORTION LIBERATION FUND OF PA: $1k → 22%0%20%40%50%more need →
grant to an above-average-need area below average· circle size = grant amount
How this is measured
Matched: human-services grants are those whose grantee’s IRS cause code is Human Services. Placed by people below the poverty line in the grantee’s ZIP, averaged from the tracts in that ZIP.

Which US states its grants reach

ME
ID
MT
MN
NY
MA
NV
OH
PA
NJ
CA
CO
KY
WV
VA
MD
AZ
NC
SC
DC
LA
AL
GA
TX
FL
How this is measured
US grants placed by each grantee’s ZIP, which can differ from where services are delivered. Need from public data (U.S. Census/ACS, CDC PLACES, Eviction Lab, USDA), shown as context about the area, never attributed to the funder’s giving.
03Its grantees
repeat funding

Who it funds again

Organizations funded in more than one year, against those funded once.

97%of every dollar goes to organizations it has funded before.
$24M · 121 repeat orgs$748k to everyone else

Grantees it renews have grown median revenue +27% since the first grant, against +24% for those 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

Re-uppedFunded once

Organizations

121
92

Total granted

$24M
$675k

Median revenue growth · since first grant

+27%
+24%

Still filing today

75%
53%

New vs renewed · share of each year

In FY2023, 99% of grant dollars renewed an existing relationship; $73k went to new ones.

50%100%’18’20’21’22’23
RenewedFirst-time

Where new relationships form · theme of each grantee’s first grant

’18’20’21’22’23
Arts & CultureAnimalsEnvironmentEducationPhilanthropyHuman ServicesOther
How this is measured
First-time means a grantee’s first year in the filing window; renewed means funded in an earlier year too. The renewed share climbs naturally as a portfolio matures, so the signal is a year that bucks it (a wave of new grantees). 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

  • PM
    PHILADELPHIA MUSEUM OF ART
    5× · 2018–2023 · $7.6M · revenue +28%
  • PHILADELPHIA ORCHESTRA ASSOCIATION
    5× · 2018–2023 · $5.9M · revenue +59%
  • THE TRUSTEES OF MOUNT HOLYOKE COLLEGE
    5× · 2018–2023 · $1.2M · revenue +11%

Funded once

  • KC
    KIMMEL CENTER INCgraduated
    one grant, 2018 · $104k · revenue +43%
  • YB
    YOTH BUILD PHILLY CHARTER SCHOOL
    one grant, 2022 · $100k
  • BL
    BEARDED LADIES CABARET
    one grant, 2018 · $50k · revenue +23%
How this is measured

Repeat means funded in two or more distinct years. Growth and survival are read from each grantee’s own subsequent IRS filings.

04Its field

Closest unfunded matches

The nonprofits that most resemble its grantees but are not funded by it, scored along the direction from the rest of the field toward the portfolio. A resemblance in what they say they do, not a recommendation.

1
Western Pennsylvania Conservancy

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…

Environment
2
Zoological Society of Pittsburgh

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,…

Animals
3
World Animal Protection

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…

Animals
4
The Trustees of Princeton University

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…

Education
5
American Museum of Natural History

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."

Arts & Culture
6
Rainforest Trust

Rainforest trust saves endangered wildlife and protects our planet by creating rainforest reserves through partnerships, community engagement, and donor support.

International
7
Greater Philadelphia Tourism Marketing Corporation

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.

Community Improvement
8
Panthera Corporation

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.

Animals
9
Pittsburgh Parks Conservancy

We improve quality of life by enhancing and stewarding pittsburgh's parks in partnership with the community.

Recreation & Sports
10
National Aviary in Pittsburgh Inc

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…

Animals
11
The Wildlife Society

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.

Animals
12
Philadelphia Industrial Development Corporation

Pidc plans and implements economic development initiatives (see schedule o) which enhance the competitive environment, generate jobs and produce higher tax ratables throughout philadelphia.

Community Improvement
How this is measured
The grantee most central to the portfolio’s shape is Greater Philadelphia Cultural Alliance; 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.
04the grantee network

152 grantees tracked through their own filings, 2017–2025.

Each grant beside the grantee’s revenue from every source, year by year.

How this is measured

Counted here: distinct organizations funded across 2017 to 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.

Each grantee is resolved to its own IRS returns. Association, dated; never a causal claim.

0
Load-bearing (≥25% of a budget)
26
Early backer (in before they grew)
151/152
Grantees still filing
108/152
Grew since first funded

Where the money sits, by cause and then by grantee

PHILADELPHIA MUSEUM OF ART: $7,636,640 · Arts & CulturePHILADELPHIA MUSEUM OF ARTPHILADELPHIA ORCHESTRA ASSOCIATION: $5,858,049 · Arts & CulturePHILADELPHIA ORCHESTRA ASSOCIATIONOPERA PHILADELPHIA: $775,000 · Arts & CultureColonial Williamsburg Foundation: $605,000 · Arts & CultureTWO RIVER THEATRE COMPANY INC: $574,500 · Arts & Culture+33 more: $1,364,891 · Arts & Culture+33 moreIndividual grant recipient: $860,140 · OtherIndividual grant rec…CALDER GARDENS CO BARNES FOUNDATION: $750,000 · OtherCALDER GARDENS CO BA…1 LOVE FOR ANIMALS: $582,442 · Other1 LOVE FOR ANIMALSJOHNS HOPKINS CTR FOR INNOVATIVE MEDICINE: $500,000 · OtherJOHNS HOPKINS CTR FO…FREE LIBRARY OF PHILADELPHIA FOUNDATION: $335,300 · OtherFREE LIBRARY OF PHIL…ST CHRISTOPHERS CHURCH: $209,500 · Other+115 more: $1,330,805 · Other+115 moreTHE TRUSTEES OF MOUNT HOLYOKE COLLEGE: $1,212,500 · EducationTHE TRUST…DREXEL UNIVERSITY: $481,000 · EducationDREXEL UN…TRUSTEES OF THE UNIVERSITY OF PENNSYLVANIA: $310,000 · EducationTRUSTEES …PENNSYLVANIA ACADEMY OF THE FINE ARTS: $78,000 · Education+5 more: $139,000 · Education+5 moreTHE PENNSYLVANIA HORTICULTURAL SOCIETY: $958,750 · EnvironmentSIERRA CLUB FOUNDATION: $38,500 · Environment+15 more: $128,644 · EnvironmentTHE LENFEST INSTITUTE FOR JOURNALISM SPECIAL ASSET FUND OF TPF: $250,000 · PhilanthropyTHE PHILADELPHIA FOUNDATION: $150,000 · PhilanthropyTHE FUND FOR THE SCHOOL DISTRICT OF PHILADELPHIA: $106,700 · PhilanthropyPENNSYLVANIA BREAST CANCER COALITION: $81,798 · PhilanthropyUNITED WAY OF GREATER PHILADELPHIA AND SOUTHERN NEW JERSEY: $25,000 · Philanthropy+3 more: $39,436 · PhilanthropyTHE PENNSYLVANIA INNOCENCE PROJECT: $127,500 · Crime & LegalSupport Center for Child Advocates: $13,500 · Crime & LegalPHILADELPHIA BAR FOUNDATION: $5,000 · Crime & Legal+2 more: $3,000 · Crime & LegalPhilabundance: $115,000 · Food & NutritionSHARE FOOD PROGRAM: $27,500 · Food & Nutrition
Arts & Culture$16,814,080Other$4,568,187Education$2,220,500Environment$1,125,894Philanthropy$652,934Crime & Legal$149,000Food & Nutrition$142,500

Showing the 200 largest grantees by grant value.

Each grantee by its size and the funder’s share of it; top left is load-bearing

25%50%75%100%$1.0M$10M$100Mgrantee revenue →↑ funder's share of their budgetPHILADELPHIA MUSEUM OF ART: $7,636,640 over 5y, 2.8% of budgetPHILADELPHIA ORCHESTRA ASSOCIATION: $5,858,049 over 5y, 3.5% of budgetTHE TRUSTEES OF MOUNT HOLYOKE COLLEGE: $1,212,500 over 5y, 0.4% of budgetTHE PENNSYLVANIA HORTICULTURAL SOCIETY: $958,750 over 5y, 1.5% of budgetOPERA PHILADELPHIA: $775,000 over 5y, 1.8% of budgetColonial Williamsburg Foundation: $605,000 over 5y, 0.2% of budgetTWO RIVER THEATRE COMPANY INC: $574,500 over 5y, 5.0% of budgetDREXEL UNIVERSITY: $481,000 over 5y, 0.0% of budgetFREE LIBRARY OF PHILADELPHIA FOUNDATION: $335,300 over 4y, 1.1% of budgetAMERICAN PHILOSOPHICAL SOCIETY: $323,500 over 4y, 1.3% of budgetTRUSTEES OF THE UNIVERSITY OF PENNSYLVANIA: $310,000 over 2y, 0.0% of budgetTHE LENFEST INSTITUTE FOR JOURNALISM SPECIAL ASSET FUND OF TPF: $250,000 over 4y, 0.4% of budgetTHE BARNES FOUNDATION: $186,124 over 5y, 0.3% of budgetTHE PENNSYLVANIA BALLET ASSOCIATION: $185,000 over 4y, 0.7% of budgetTHE PHILADELPHIA FOUNDATION: $150,000 over 2y, 0.1% of budgetTHE PENNSYLVANIA INNOCENCE PROJECT: $127,500 over 5y, 3.8% of budgetPhilabundance: $115,000 over 4y, 0.1% of budgetPLAY ON PHILLY: $106,800 over 5y, 1.8% of budgetTHE FUND FOR THE SCHOOL DISTRICT OF PHILADELPHIA: $106,700 over 3y, 0.9% of budgetKIMMEL CENTER INC: $103,800 over 1y, 0.1% of budgetCOMMITTEE OF SEVENTY: $86,900 over 5y, 1.0% of budgetPENNSYLVANIA BREAST CANCER COALITION: $81,798 over 5y, 1.8% of budgetPENNSYLVANIA ACADEMY OF THE FINE ARTS: $78,000 over 4y, 0.2% of budgetWilliams College: $70,000 over 5y, 0.0% of budgetTemple University - Of The Commonwealth System of Higher Education: $60,000 over 2y, 0.0% of budgetWHYY INC: $51,425 over 3y, 0.1% of budgetTHE FRANKLIN INSTITUTE: $47,694 over 5y, 0.0% of budgetHEADLONG DANCE THEATER INC: $47,000 over 2y, 9.0% of budgetAmerican National Red Cross & Its Constituent Chapters and Branches: $40,000 over 3y, 0.0% of budgetPROJECT 440 INC: $40,000 over 4y, 5.6% of budgetSIERRA CLUB FOUNDATION: $38,500 over 4y, 0.0% of budgetPROJECT HOME: $32,750 over 3y, 0.0% of budgetTHE CONSERVATION FUND A NONPROFIT CORPORATION: $30,000 over 2y, 0.0% of budgetTHE ACADEMY OF NATURAL SCIENCES OF PHILADELPHIA: $28,750 over 4y, 0.1% of budgetSHARE FOOD PROGRAM: $27,500 over 1y, 0.2% of budgetWOMEN'S LAW PROJECT: $26,000 over 5y, 0.6% of budgetFair Elections Center: $25,000 over 1y, 0.3% of budgetUNITED WAY OF GREATER PHILADELPHIA AND SOUTHERN NEW JERSEY: $25,000 over 1y, 0.1% of budgetUPPER MCMICHAEL CREEK CONSERVANCY: $25,000 over 1y, 11% of budgetTHE RUBICAM FOUNDATION: $25,000 over 2y, 6.1% of budgetMADISON RIVER FOUNDATION: $25,000 over 4y, 6.0% of budgetPHILADELPHIA ANIMAL WELFARE SOCIETY: $24,000 over 4y, 0.1% of budgetCENTER FOR BIOLOGICAL DIVERSITY INC: $22,500 over 3y, 0.0% of budgetTHE MOUNT VERNON LADIES' ASSOCIATION OF THE UNION: $21,422 over 5y, 0.0% of budgetGREATER PHILADELPHIA CULTURAL ALLIANCE: $21,000 over 4y, 0.5% of budgetHOBE SOUND COMMUNITY CHEST INC: $20,250 over 3y, 0.4% of budgetGLOBAL PHILADELPHIA ASSOCIATON INC: $19,200 over 4y, 2.5% of budgetWOODMERE ART MUSEUM: $19,200 over 5y, 0.3% of budget
Grantee by grantee: a decade per organization, before and after funding

A decade per grantee: revenue shaded, 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 ↗

Co-funders

Grantmakers whose grantees overlap with this funder’s far more than size alone predicts. Closer means stronger alignment; arcs show where they also fund each other. Here they form a tightly interlocked group: most of these funders back each other's grantees too.

The William Penn FoundationPA65.6× affinity34 shared granteesties to 10 of 11Hover any node to trace its alignments.Compare side by side →

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

How this is measured
Affinity is a Gamma-Poisson posterior co-funding rate, re-centered on the typical rate, so thin evidence shrinks toward no signal. Overlap is association, not proof of shared intent.

How much its grantees rely on government

Each dot is one organization The Leslie Miller and Richard Worley Foundation funds: left to right is the share of its income from government, bottom to top the share from The Leslie Miller and Richard Worley Foundation. Bigger dots raise more.

2024
’20’21’22’23’24’25
no gov · 100%1%4%8%15%funder's share of their income ↑0%23%45%68%90%share of the org’s income from government →median 0%
  • 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
no gov moneyreceives it· size = income
10get no government money at all
30report government grants on their 990 we could not trace to a source (not plotted)
0rely on government for over half their income
⤢ axis zoomed · 0–90%
typical government reliance, FY20–25
How this is measured
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 a grant caused the public funding. Coverage is precision-first, a floor rather than 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 to 24 months.
05Through Plinth

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.

On method. Every financial figure here is read from IRS e-file XML, the funder’s own 990/990-PF, and from the multi-year returns of the 232 grantees we resolved, each linked to its source. Grantee outcomes are each organization’s own program-service reporting (Form 990, Part III), read as association with funding, never as caused by it. Low-confidence name matches are suppressed rather than guessed. How we build these →

How this is measured
Each figure carries one of six labels. Filed is what the funder reported on its return. Official is another government record about an organization, such as a federal award or a charity register, joined by name where no shared identifier exists. Resolved is an identity we worked out where the filing named a recipient without an EIN, kept only above a measured confidence threshold. Computed is arithmetic over those, like themes, portfolio clusters and co-funder strength. Context is a statistic about a place rather than about an organization, which is what the need overlay is: it describes the area a grantee’s address sits in, not where its work lands. Inferred is drawn by a model from text, like the partnerships read out of public news and organization websites. Each is labeled where it appears.

Generated from the IRS Form 990-PF e-file return for fiscal year 2023, released 2023. Filings run roughly 12 to 24 months behind; figures are dated accordingly.

Source object · view filing

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