How much does Bruce and Deborah Duncan Foundation give?

Bruce and Deborah Duncan Foundation reported 36 grants totaling $1,502,000 in its FY2025 IRS filing. It funded between 29 and 49 organizations a year over FY2018 to FY2024.

What does Bruce and Deborah Duncan Foundation fund?

By grant dollars over FY2017 to FY2025, its largest causes are Education (41%), Arts & Culture (11%), Health (11%).

Who are Bruce and Deborah Duncan Foundation's largest grantees?

By total granted over FY2017 to FY2025: Kenyon College ($2.4M), The Heritage Foundation ($1.2M), Artis-Naples Inc ($365k).

Does Bruce and Deborah Duncan Foundation fund new organizations?

In FY2024, 24% of the organizations it funded were first-time grantees.

Does Bruce and Deborah Duncan Foundation accept unsolicited applications?

Its most recent filing reports that it accepts unsolicited grant applications.

Which funders back the same organizations as Bruce and Deborah Duncan Foundation?

Its strongest co-funders, measured against what their size predicts, include Collier Community Foundation Inc, Carol B Phelon Foundation, The League Club Inc.

Where is Bruce and Deborah Duncan Foundation based?

Bruce and Deborah Duncan Foundation is based in FL.

Bruce and Deborah Duncan Foundation

Bruce and Deborah Duncan Foundation at a glance

· Private foundation

Bruce and Deborah Duncan Foundation

Its FY2025 filing reports that it accepted unsolicited grant applications.

$1.5M

Granted FY2025still arriving

Grants FY2025still arriving

States reached

$675k

Largest

01What it funds

01100% classified

What it funded, over time

Every grant placed by its stated purpose and the recipient’s mission, by year, FY2017 to 2024.

Education$3.3MArts & Culture$890kHealth$857kPublic Benefit$570kEnvironment$453kPhilanthropy$262kAnimals$260kFood & Nutrition$230kOther$0

02FY2025 · 36 grants

Where the money goes

Grants by size, and the largest recipients.

By grant size · FY2025

Under $10k4 grants · $20k
$10k–50k27 grants · $465k
$50k–250k4 grants · $342k
$250k+1 grant · $675k

$20,000

Median grant

States reached

$44M

Total assets

Largest grants
Recipient	Amount
THE HERITAGE FOUNDATION	$675,000
ST ANDREWS BAPTIST CHURCH	$167,000
NANTUCKET ISLAND SAFE HARBOR FOR ANIMALS	$70,000
MOORINGS PRESBYTERIAN CHURCH	$55,000
NORTHWESTERN MEMORIAL FOUNDATION	$50,000
CHICAGO COLLEGIATE CHARTER SCHOOL	$30,000
THE MELANOMA RESEARCH ALLIANCE FOUNDATION	$25,000
NCH CENTER FOR PHILANTHROPY	$25,000
PARKINSON'S RESEARCH AND EDUCATION FOUNDATION DBA INSTITUTE FOR NEURODEGENE	$25,000
NANTUCKET CONSERVATION FOUNDATION	$25,000
STANFORD UNIVERSITY	$25,000
NANTUCKET COTTAGE HOSPITAL FOUNDATION	$25,000
ARTIS-NAPLES	$25,000
RUSH UNIVERSITY MEDICAL CENTER	$20,000
HARRY CHAPIN FOOD BANK OF SOUTHWEST FLORIDA	$20,000

02The need

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 (FY17–25, $271k) land where the poverty rate runs at 11%, against an area that typically sits at 10%. 96% of those dollars go to grantees based in above-average-need neighborhoods. Most of its grants land in higher-need ZIPs.

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

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.

88%of every dollar goes to organizations it has funded before.

$8.2M · 54 repeat orgs$1.1M to everyone else

Grantees it renews have grown median revenue +42% since the first grant, against +24% for those funded once.

54 repeat relationships: 29 still active in FY2025, 25 since wound down; 5 grantees were first funded in FY2025 (too recent to call).

How the two cohorts compare

Re-uppedFunded once

Organizations

Total granted

$8.2M

$902k

Median revenue growth · since first grant

+42%

+24%

Still filing today

78%

58%

New vs renewed · share of each year

In FY2025, 87% of grant dollars renewed an existing relationship; $197k went to new ones.

RenewedFirst-time

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

EducationArts & CulturePhilanthropyHealthHuman ServicesRecreation & SportsOther

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

KENYON COLLEGE
7× · 2017–2023 · $2.4M · revenue +23%
THE HERITAGE FOUNDATION
3× · 2023–2025 · $1.2M · revenue +33%
AI
ARTIS-NAPLES INC
9× · 2017–2025 · $365k · revenue +27%

Funded once

ES
EVANS SCHOLARS FOUNDATION
one grant, 2023 · $200k
FRIENDS OF THE ISRAEL DEFENSE FORCES
one grant, 2023 · $50k · revenue -33%
RI
Rehabilitation Institute of Chicago
one grant, 2023 · $25k · revenue +5%

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.

United States Naval Institute

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.

—

Massachusetts Institute of Technology

The mission of mit is to advance knowledge and educate students in science, technology, and other areas of scholarship that will best serve the nation and the world in the 21st century.

Education

University of New Haven

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…

Education

Boston Architectural College

The bac is committed to provide excellence in design education grounded in practice and accessible to diverse communities.

—

Northeast College of Health Sciences

Northeast college of health sciences (the college) is committed to academic excellence, leadership, and professional best practices in the health sciences.

Education

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

National Opinion Research Center

See schedule onorc at the university of chicago conducts research and data science on critical societal issues to guide decision-making and the development of programs and public policy. our experts identify relationships and trends, and…

Social Science

National Association of College and University Attorneys

To advance the practice of higher education attorneys for the benefit of the institutions they serve.

—

Trustees of Tufts College

Education and Research

Education

Furman University

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.

Education

President and Fellows of Harvard College

Undergraduate, graduate, and professional education and research across a broad array of academic domains.

Education

Massachusetts Higher Education Assistance Corporation

The organization's primary exempt purpose is to provide access to and conduct activities in furtherance of higher education.

—

How this is measured

The grantee most central to the portfolio’s shape is The Heritage Foundation; the most unlike its peers is Americans for the Israeli Third Wayinc. 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

80 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. 80 of the 113 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.

Load-bearing (≥25% of a budget)

Early backer (in before they grew)

79/80

Grantees still filing

59/80

Grew since first funded

Where the money sits, by cause and then by grantee

Education$2,756,000Other$3,654,000Public Benefit$1,265,000Arts & Culture$880,000Environment$367,500Health$289,000Philanthropy$275,000

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

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.

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.

Collier Community Foundation IncFL26.8× affinity11 shared granteesties to 7 of 11Hover any node to trace its alignments.Compare side by side →

Open a dossier: Collier Community Foundation Inc · Carol B Phelon Foundation · The League Club Inc · The Ayco Charitable Foundation · Community Foundation for Nantucket Inc · The Hartman Family Foundation · Karp Family Foundation Stephen R and Jill E Karp Trustees · The Hajim Family Foundation · Nantucket Golf Club Foundation Inc · Clark Family Foundation Inc · Naples Children Foundation Inc · Cape Cod Five Cents Savings Bank Charitable Foundation Trust

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 Bruce and Deborah Duncan Foundation funds: left to right is the share of its income from government, bottom to top the share from Bruce and Deborah Duncan Foundation. Bigger dots raise more.

2024

’20’21’22’23’24’25

no gov moneyreceives it· size = income

16get no government money at all

20report government grants on their 990 we could not trace to a source (not plotted)

0rely on government for over half their income

⤢ axis zoomed · 0–50%

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.

Play a game based on Bruce and Deborah Duncan’s filings →

More from the funding graph

The unnamed billions

grants reported with no recipient in the public record

The regranting layer

51% of grant dollars land in the regranting layer

The DAF merry-go-round

$9.7B circulates between donor-advised funds

The endowment market

who holds foundation money, and what just moved

The camps

funders cluster by geography, not ideology

By state

where grant money is based, and what stays home