· Private foundation
Bruce and Deborah Duncan Foundation
Its FY2024 filing reports that it accepted unsolicited grant applications.
What you funded, over time
Every grant placed by its stated purpose and the recipient’s mission, by year — across FY2017–2024.
Where the money goes
Your grants by size, and where they go.
By grant size · FY2024
- Under $10k6 grants · $25k
- $10k–50k37 grants · $615k
- $50k–250k1 grant · $50k
- $250k+1 grant · $500k
| Recipient | Amount |
|---|---|
| The Heritage Foundation | $500,000 |
| Harry Chapin Food Bank of Southwest Florida | $50,000 |
| CATO Institute | $25,000 |
| Forest Bluff School Inc | $25,000 |
| NCH Center for Philanthropy | $25,000 |
| Artis-Naples | $25,000 |
| Notre Dame College Prep | $25,000 |
| Northwestern Memorial Foundation | $25,000 |
| The Melanoma Research Alliance Foundation | $25,000 |
| Great Harbor Yacht Club Foundation | $25,000 |
| Hoover Institution | $25,000 |
| Nantucket Conservation Foundation | $25,000 |
| Parkinson's Research and Education Foundation dba Institute for Neurodegene | $25,000 |
| Nantucket Boys & Girls Club | $20,000 |
| Moorings Presbyterian Church | $20,000 |
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 (FY17–24, $251k) land where the poverty rate runs at 11%, 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 +44% since the first grant, against +24% for the ones you funded once.
51 repeat relationships — 34 still active in FY2024, 17 since wound down; 11 grantees were first funded in FY2024 (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 FY2024, 87% of grant dollars renewed an existing relationship; $150k 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
KENYON COLLEGE7× · 2017–2023 · $2.4M · revenue +23%
THE HERITAGE FOUNDATION2× · 2023–2024 · $535k · revenue +33%- AIARTIS-NAPLES INC8× · 2017–2024 · $340k · revenue +27%
Funded once
- ESEVANS SCHOLARS FOUNDATIONone grant, 2023 · $200k
FRIENDS OF THE ISRAEL DEFENSE FORCESone grant, 2023 · $50k · revenue -33%- UOUNIVERSITY OF KENTUCKY MARKEY CANCER FOUNDATION INCgraduatedone grant, 2023 · $25k · revenue +76%
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.
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 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…
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.
Northeast college of health sciences (the college) is committed to academic excellence, leadership, and professional best practices in the health sciences.
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…
The bac is committed to provide excellence in design education grounded in practice and accessible to diverse communities.
The npr foundation ("foundation") is organized and operated exclusively for the benefit of its sole supported organization, national public radio, inc. ("npr inc."). the foundation supports npr inc. through various activities such as…
National public radio, inc. ("npr") works collaboratively with member public radio station licensees ("member stations") to create a more informed public, one that is challenged and invigorated by a deeper understanding and appreciation of…
The organization's primary exempt purpose is to provide access to and conduct activities in furtherance of higher education.
Empowering college admission counseling professionals through education, advocacy, and community.
To advance the practice of higher education attorneys for the benefit of the institutions they serve.
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.
For reference, the grantee most central to the portfolio’s shape is The Shelter for Abused Women & Children Inc and 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.
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 39 years old; the field is 16. You back the established end — and your money leans older still.
The field is 22% startups (under 5 years old) — 1% of your grantees by number, and just 0% of your money.
The orgs you fund almost never close — 0.0% lost their exemption, against 13% 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.
74 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. 74 of the 106 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 KENYON COLLEGE ↗
- Who funds THE HERITAGE FOUNDATION ↗
- Who funds ARTIS-NAPLES INC ↗
- Who funds NANTUCKET CONSERVATION FOUNDATION INC ↗
- Who funds HARRY CHAPIN FOOD BANK OF SOUTHWEST FLORIDA INC ↗
- Who funds WARRIOR-SCHOLAR PROJECT FOUNDATION ↗
- Who funds THE SHELTER FOR ABUSED WOMEN & CHILDREN INC ↗
- Who funds Rush University Medical Center ↗
- Who funds NANTUCKET HISTORICAL ASSOCIATION ↗
- Who funds NANTUCKET BOYS AND GIRLS CLUB INC ↗
- Who funds COLLIER COMMUNITY FOUNDATION INC ↗
- Who funds THE CONSERVANCY OF SOUTHWEST FLORIDA ↗
- Who funds GREAT HARBOR YACHT CLUB FOUNDATION INC ↗
- Who funds Center for Orangutan & Chimpanzee Conservation Inc ↗
- Who funds THEATRE WORKSHOP OF NANTUCKET INC ↗
- Who funds THE IMMOKALEE FOUNDATION INC ↗
- Who funds NANTUCKET DREAMLAND FOUNDATION INC ↗
- Who funds PATTY BAKER HUMANE SOCIETY NAPLES INC ↗
- Who funds MILLENNIUM PARK FOUNDATION ↗
- Who funds ST MATTHEWS HOUSE INC ↗
- Who funds ARTISTS ASSOCIATION OF NANTUCKET INC ↗
- Who funds American National Red Cross & Its Constituent Chapters and Branches ↗
- Who funds PGA TOUR FIRST TEE FOUNDATION INC ↗
- Who funds A SAFE PLACE INC ↗
- Who funds FRIENDS OF THE ISRAEL DEFENSE FORCES ↗
- Who funds NANTUCKET GOLF CLUB FOUNDATION INC ↗
- Who funds NANTUCKET ATHENEUM INC ↗
- Who funds CURTIS INSTITUTE OF MUSIC ↗
- Who funds CHICAGO CARES INC ↗
- Who funds Big Shoulders Fund ↗
- Who funds Pathways Early Education Center of Immokalee Inc ↗
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: 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
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 Bruce and Deborah Duncan 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, a single department, or state — and drag the year to watch it move.
- A Safe Place Inc — 45% of income from government
- Nantucket Maria Mitchell Association in — 9% of income from government
- Nantucket Dreamland Foundation Inc — 4% of income from government
- Nantucket Conservation Foundation Inc — 4% of income from government
- Volunteer Florida Foundation Inc — 2% of income from government
- The Shelter for Abused Women & Children Inc — 2% of income from government
- Nantucket Book Foundation Inc — 1% of income from government
- Nantucket Historical Association — 1% of income from government
- Artists Association of Nantucket 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.