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C Steven Duncker Foundation at a glance

· Private foundation

C Steven Duncker 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.

$514k
Granted FY2025still arriving
16
Grants FY2025still arriving
4
States reached
$400k
Largest
01What it fundsRead
02The needRead
03Its granteesRead
04Its fieldRead
05Through PlinthRead
01What it funds
0199% classified

What it funded, over time

Every grant placed by its stated purpose and the recipient’s mission, by year, FY2020 to 2025.

Education$2.1MHealth$182kRecreation & Sports$90kPhilanthropy$68kHuman Services$28kArts & Culture$25kAnimals$20kReligion$19kOther$0
02FY2025 · 16 grants

Where the money goes

Grants by size, and the largest recipients.

By grant size · FY2025

  • Under $10k11 grants · $39k
  • $10k–50k4 grants · $75k
  • $250k+1 grant · $400k
$5,000
Median grant
4
States reached
$2.3M
Total assets
Largest grants
RecipientAmount
DUKE UNIVERSITY$400,000
DURHAM ACADEMY$45,000
THE EXETER FUND$10,000
NEW YORK RACING ASSOCIATION FOUNDATION$10,000
JAMES B LEE SCHOLARSHIP FUND$10,000
GRAYSON JOCKEY CLUB FOUNDATION$5,000
NEW YORK RACE TRACK CHAPLAINCY$5,000
DUKE CHILDRENS HOSPITAL$5,000
THE LORD'S PLACE$5,000
JOCKEY CLUB SAFETY NET FOUNDATION$5,000
BACKSTRETCH EMPLOYEE SERVICE TEAM OF NEW YORK$5,000
PHILLIPS EXETER ACADEMY$3,000
HOPE VALLEY 1926$2,500
Individual grant recipient$2,000
DURHAM-CHAPEL HILL YOUNG LIFE$1,000
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 (FY21–23, $113k) land where the poverty rate runs at 17%, against an area that typically sits at 9%. 100% of those dollars go to grantees based in above-average-need neighborhoods. Most of its grants land in higher-need ZIPs.

area typical 9%CHILDREN'S HOME SOCIETY OF FLORIDA: $3k → 11%MOUNT SINAI HEALTH SYSTEM: $100k → 17%HARLEM CHILDREN'S ZONE: $10k → 17%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

NH
NY
MA
IA
CA
MO
KY
AR
NC
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.

88%of every dollar goes to organizations it has funded before.
$2.2M · 15 repeat orgs$301k to everyone else

15 repeat relationships: 9 still active in FY2025, 6 since wound down; 7 grantees were first funded in FY2025 (too recent to call).

How the two cohorts compare

Re-uppedFunded once

Organizations

15
20

Total granted

$2.2M
$275k

Median revenue growth · since first grant

+13%
+20%

Still filing today

73%
60%

New vs renewed · share of each year

In FY2025, 95% of grant dollars renewed an existing relationship; $26k went to new ones.

50%100%’20’21’22’23’24’25
RenewedFirst-time

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

’20’21’22’23’24’25
EducationHealthHuman ServicesPhilanthropyRecreation & SportsArts & CultureOther
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

  • DUKE UNIVERSITY
    6× · 2020–2025 · $1.7M · revenue +49%
  • DA
    DURHAM ACADEMY INC
    4× · 2022–2025 · $195k · revenue +16%
  • PHILLIPS EXETER ACADEMY
    4× · 2022–2025 · $54k · revenue +4%

Funded once

  • MS
    MOUNT SINAI HEALTH SYSTEM INC
    one grant, 2021 · $100k · revenue +20%
  • DD
    DURHAM DEVILS GIVING INC
    one grant, 2023 · $50k
  • OV
    ONE VISION FUTURES FUND INC
    one grant, 2023 · $50k
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
The Johns Hopkins Hospital

For more than 125 years, the mission of the johns hopkins hospital has been to lead the world in the diagnosis and treatment of disease and to train tomorrow's great physicians, nurses and scientists. above all, we aim to provide the…

Health
2
The Children's Hospital of Philadelphia

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,…

Health
3
Memorial Sloan-Kettering Cancer Center

Leadership in the prevention, treatment, and cure of cancer through excellence, vision and cost effectiveness in patient care, outreach programs, research, and education.

Health
4
Albany College of Pharmacy and Health Sciences

We educate the next generation of leaders to improve the health of our society.

Education
5
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
6
Stony Brook Childrens Services University Faculty Practice Corporation

Provide clinical instruction to and supervision of medical school students, interns and residents and, incident thereto, rendering professional services.

Health
7
All Children's Research Institute Inc

The corporation is organized and is operated exclusively for charitable, educational and scientific purposes. all children's research institute supports, encourages, and engages in and conducts medical research and other research in…

Health
8
New York Genome Center Inc

Operate a state-of-the-art, world-class genomic research center that creates and uses advanced genomics to understand the genetic basis of disease. for more information, see schedule o.

Health
9
Johns Hopkins All Children's Hospital Inc

Mission: johns hopkins all children's hospital (all children's), a member of johns hopkins medicine, strives to provide the highest quality care to improve the health of our entire community through innovation, collaboration, service…

Health
10
Pembroke Hill School

A preschool through 12th grade, private, college preparatory school. the school's mission statement is "together, cultivating the best in each for the benefit of all."

Education
11
The Jockey Club

The organization is dedicated to the improvement of thoroughbred breeding and racing. It fulfills that mandate by serving many segments of the industry through its subsidiary companies and by providing support to a wide range of industry…

Recreation & Sports
12
Hugo W Moser Research Institute At Kennedy Krieger Inc

The hugo w. moser research institute at kennedy krieger, inc. (the "research institute") is an internationally recognized research facility finding answers to problems and injuries that affect a child's developing brain. researchers have…

Science & Tech
How this is measured
The grantee most central to the portfolio’s shape is Emily Krzyzewski Center Inc; the most unlike its peers is New York Racing Association Foundation. 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

26 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. 26 of the 42 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.

1
Load-bearing (≥25% of a budget)
4
Early backer (in before they grew)
25/26
Grantees still filing
16/26
Grew since first funded

Where the money sits, by cause and then by grantee

DUKE UNIVERSITY: $1,730,000 · EducationDUKE UNIVERSITYDURHAM ACADEMY INC: $195,000 · EducationDURHAM ACADEMY INC+3 more: $91,500 · EducationDURHAM DEVILS GIVING INC: $50,000 · OtherDURHAM DEVILS…ONE VISION FUTURES FUND INC: $50,000 · OtherONE VISION FU…GRAYSON JOCKEY CLUB FOUNDATION: $40,000 · OtherGRAYSON JOCKE…THE JOCKEY CLUB SAFETY NET FOUNDATION: $32,500 · OtherTHE JOCKEY CL…NICKLAUS CHILDRENS HOSPITAL FOUNDATION: $25,000 · OtherNICKLAUS CHIL…JAMES B LEE SCHOLARSHIP FUND: $20,000 · OtherJAMES B LEE S…NEW YORK RACE TRACK CHAPLAINCY: $17,500 · OtherNEW YORK RACE…+23 more: $75,350 · Other+23 moreMOUNT SINAI HEALTH SYSTEM INC: $100,000 · Human ServicesHARLEM CHILDREN'S ZONE INC: $10,000 · Human Services+1 more: $2,500 · Human ServicesEMILY KRZYZEWSKI CENTER INC: $40,000 · Recreation & SportsNATIONAL MUSEUM OF RACING INC: $20,000 · Arts & CultureNEW YORK RACING ASSOCIATION FOUNDATION: $20,000 · AnimalsBACKSTRETCH EMPLOYEE SERVICE TEAM OF NEW YORK INC: $16,000 · Employment
Education$2,016,500Other$310,350Human Services$112,500Recreation & Sports$40,000Arts & Culture$20,000Animals$20,000Employment$16,000

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

25%50%75%100%$100k$1.0M$10M$100Mgrantee revenue →↑ funder's share of their budgetDUKE UNIVERSITY: $1,730,000 over 6y, 0.0% of budgetDURHAM ACADEMY INC: $195,000 over 4y, 0.1% of budgetMOUNT SINAI HEALTH SYSTEM INC: $100,000 over 1y, 0.1% of budgetPHILLIPS EXETER ACADEMY: $54,000 over 4y, 0.0% of budgetEMILY KRZYZEWSKI CENTER INC: $40,000 over 3y, 0.7% of budgetTHE JOCKEY CLUB SAFETY NET FOUNDATION: $32,500 over 4y, 1.0% of budgetNATIONAL MUSEUM OF RACING INC: $20,000 over 2y, 0.3% of budgetTHE GREENE SCHOOL INC: $20,000 over 2y, 0.3% of budgetNEW YORK RACING ASSOCIATION FOUNDATION: $20,000 over 2y, 0.8% of budgetJOHN BURROUGHS SCHOOL: $17,500 over 5y, 0.0% of budgetBACKSTRETCH EMPLOYEE SERVICE TEAM OF NEW YORK INC: $16,000 over 4y, 0.3% of budgetAdopt a Family Inc: $10,000 over 3y, 57% of budgetHARLEM CHILDREN'S ZONE INC: $10,000 over 1y, 0.0% of budgetChildren's Hospital Corporation: $10,000 over 1y, 0.0% of budgetTHE LORD'S PLACE INC: $5,000 over 1y, 0.0% of budgetJupiter Medical Center Foundation Inc: $2,500 over 1y, 0.0% of budgetCHADWICK FOUNDATION: $2,500 over 1y, 0.5% of budgetTHE CHILDREN'S HOME SOCIETY OF FLORIDA: $2,500 over 1y, 0.0% of budgetJOE DIMAGGIO CHILDREN'S HOSPITAL FOUNDATION INC: $2,500 over 1y, 0.0% of budgetYOUNG LIFE: $2,000 over 2y, 0.0% of budgetPEDIATRIC CANCER RESEARCH FOUNDATION: $1,500 over 1y, 0.1% of budgetCARING HOUSE INC: $1,000 over 1y, 0.0% of budgetBREEDERS' CUP CHARITIES INC: $1,000 over 1y, 0.9% of budgetPalm Beach Fellowship of Christians and Jews Inc: $500 over 1y, 0.3% of budgetBLOOD CANCER UNITED INC: $500 over 1y, 0.0% of budgetPALM BEACH GARDENS YOUTH ATHLETIC ASSOCIATIONINC: $350 over 1y, 0.0% 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.

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.

Gs Donor Advised Phil…Morgan Stanley Global…Charities Aid Foundat…American Endowment Fo…National Philanthropi…Vanguard Charitable E…Donor Advised Charita…Fidelity Investments …Amazonsmile Foundation
Gs Donor Advised Philanthropy Fund for Wealth Management IncNY10.1× affinity4 shared granteesties to 8 of 8Hover any node to trace its alignments.Compare side by side →

Open a dossier: Gs Donor Advised Philanthropy Fund for Wealth Management Inc · Morgan Stanley Global Impact Funding Trust Inc · Charities Aid Foundation America · American Endowment Foundation · National Philanthropic Trust · Vanguard Charitable Endowment Program · Donor Advised Charitable Giving Inc · Fidelity Investments Charitable Gift Fund · Amazonsmile 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 C Steven Duncker Foundation funds: left to right is the share of its income from government, bottom to top the share from C Steven Duncker Foundation. Bigger dots raise more.

2024
’20’21’22’23’24’25
no gov · 60%4%15%34%60%funder's share of their income ↑0%8%15%22%30%share of the org’s income from government →median 10%
  • The Lord's Place Inc: 12% of income from government
  • Children's Hospital Corporation: 10% of income from government
  • The Children's Home Society of Florida: 6% of income from government
no gov moneyreceives it· size = income
6get no government money at all
3report government grants on their 990 we could not trace to a source (not plotted)
0rely on government for over half their income
⤢ axis zoomed · 0–30%
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 C Steven Duncker Foundation?

Find your warmest path to C Steven Duncker 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 42 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 2025, released 2025. Filings run roughly 12 to 24 months behind; figures are dated accordingly.

Source object · view filing

Play a game based on C Steven Duncker’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