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· Private foundation

The Duke of Omnium Fund

Its FY2025 filing reports that it accepted unsolicited grant applications.

$205k
Granted FY2025still arriving
35
Grants FY2025still arriving
6
States reached
$54k
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, FY2020 to 2025.

Education$683kArts & Culture$416kInternational$176kSocial Science$115kEnvironment$81kScience & Tech$75kAnimals$60kHealth$46kOther$0
02FY2025 · 35 grants

Where the money goes

Grants by size, and the largest recipients.

By grant size · FY2025

  • Under $10k27 grants · $39k
  • $10k–50k7 grants · $112k
  • $50k–250k1 grant · $54k
$1,000
Median grant
6
States reached
$2.7M
Total assets
Largest grants
RecipientAmount
President and Fellows of Harvard College$54,000
Rare Book School$35,000
Thomas Jefferson Foundation$25,000
Metropolitan Museum of Art$12,000
American Friends of the Musee dOrsay$10,000
Rising Phoenix Conservation Inc$10,000
Harvard Business School$10,000
Henry L Ferguson Museum$10,000
NextGen Face Inc$5,000
University of Virginia$5,000
Island Health Project$2,500
Speare Memorial Hospital$2,500
Holderness School$2,500
Ubuntu Education Fund$2,500
National Education Equity Lab$2,500
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 (FY25–25, $5k) 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%NextGen Face Inc: $5k → 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
IL
NY
MA
CT
CA
VA
TX
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.

95%of every dollar goes to organizations it has funded before.
$952k · 30 repeat orgs$51k to everyone else

Grantees it renews have grown median revenue +27% since the first grant, against +22% for those funded once.

30 repeat relationships: 28 still active in FY2025, 2 since wound down; 5 grantees were first funded in FY2025 (too recent to call).

How the two cohorts compare

Re-uppedFunded once

Organizations

30
4

Total granted

$952k
$28k

Median revenue growth · since first grant

+27%
+22%

Still filing today

73%
100%

New vs renewed · share of each year

In FY2025, 84% of grant dollars renewed an existing relationship; $24k 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
EducationArts & CultureEnvironmentHealthAnimalsPublic Safety & DisasterOther
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

  • RP
    RISING PHOENIX CONSERVATION INC
    6× · 2020–2025 · $60k · revenue +301%
  • SL
    SQUAM LAKES CONSERVATION SOCIETY
    6× · 2020–2025 · $56k · revenue +22%
  • HL
    Henry L Ferguson Museum
    6× · 2020–2025 · $45k · revenue +220%

Funded once

  • LM
    LAWRENCE MEMORIAL HOSPITAL INC
    one grant, 2022 · $10k · revenue +16%
  • MS
    MILLBROOK SCHOOLgraduated
    one grant, 2022 · $10k · revenue +58%
  • PC
    PARK CHILDREN'S DAY SCHOOL
    one grant, 2023 · $5k · revenue +22%
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
President and Trustees of Bates College

Bates is a college of the liberal arts and sciences, and is a coeducational, nonsectarian, residential college with special commitments to academic rigor, and to assuring in all of its efforts the dignity of each individual, and access to…

Education
2
Saint Anselm College

Saint anselm is a catholic, benedictine college providing all of its students a distinctive liberal arts education that incorporates opportunities for professional and career preparation. it does so in a learning community that encourages…

Education
3
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
4
Boston Architectural College

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

—
5
St Francis College

St. francis college is an independent, coeducational institution of higher education chartered by an act of the regents of the university of the state of new york on april 10, 1957.

Education
6
Hampden-Sydney College

Since 1775, the mission of Hampden-Sydney College has been to form good men and good citizens in an atmosphere of sound learning.

Education
7
Rhode Island School of Design

The mission of rhode island school of design, through its college and museum,is to educate its students and the public in the creation and (see schedule o)appreciation of works of art and design, to discover and transmit knowledge and to…

Education
8
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
9
Williams College

Williams College strives to achieve educational excellence by fostering a community of learning in collaboration with students, faculty, staff, devoted alumni and parents.

Education
10
Nantucket Conservation Foundation Inc

The nantucket conservation foundation owns, protects, and stewards over 9,000 acres of land and coastal shoreline, conserves nantucket's rare and significant natural resources, and engages in impactful ecological research to inform…

Environment
11
New York School of Interior Design

New york school of interior design provides the most innovative, immersive, and transformative interior design education in the world, demonstrating the impact of professionally designed interiors on the health, happiness, and well-being…

Education
12
Stony Brook Surgical Associates University Faculty Practice Corporation

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

Health
How this is measured
The grantee most central to the portfolio’s shape is American Friends of the Musee Dorsay; the most unlike its peers is Metropolitan Museum of Art. 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

35 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. 35 of the 44 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)
6
Early backer (in before they grew)
35/35
Grantees still filing
26/35
Grew since first funded

Where the money sits, by cause and then by grantee

President and Fellows of Harvard College: $487,380 · EducationPresident and Fellows of Harvard Colle…+12 more: $87,500 · Education+12 moreHarvard Business School: $115,000 · OtherHarvard Business SchoolHarvard College: $102,000 · OtherHarvard CollegeRare Book School: $80,000 · OtherRare Book SchoolRadcliffe Institute for Advanced Study: $75,000 · OtherRadcliffe Institute for Adv…+11 more: $33,250 · Other+11 moreTHOMAS JEFFERSON FOUNDATION INC: $207,500 · Arts & CultureTHOMAS JEFFERSON FOUND…Henry L Ferguson Museum: $45,000 · Arts & CultureHenry L Ferguson Museu…METROPOLITAN MUSEUM OF ART: $34,000 · Arts & CultureMETROPOLITAN MUSEUM OF…AMERICAN FRIENDS OF VERSAILLES: $29,500 · Arts & CultureAMERICAN FRIENDS OF VE…+2 more: $19,500 · Arts & Culture+2 moreCHARITIES AID FOUNDATION AMERICA: $175,000 · PhilanthropyCHARITIES AI…New Hampshire Charitable Foundation: $10,000 · PhilanthropyNew Hampshir…SQUAM LAKES CONSERVATION SOCIETY: $56,000 · EnvironmentSQUAM LAKES ASSOCIATION: $16,000 · EnvironmentSQUAM LAKES NATURAL SCIENCE CENTER: $6,000 · EnvironmentFISHERS ISLAND CONSERVANCY INC: $3,000 · EnvironmentRISING PHOENIX CONSERVATION INC: $60,000 · AnimalsISLAND HEALTH PROJECT INC: $16,000 · HealthSpeare Memorial Hospital: $15,000 · HealthLAWRENCE MEMORIAL HOSPITAL INC: $10,000 · Health
Education$574,880Other$405,250Arts & Culture$335,500Philanthropy$185,000Environment$81,000Animals$60,000Health$41,000

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 budgetPresident and Fellows of Harvard College: $487,380 over 3y, 0.0% of budgetTHOMAS JEFFERSON FOUNDATION INC: $207,500 over 6y, 0.1% of budgetCHARITIES AID FOUNDATION AMERICA: $175,000 over 5y, 0.0% of budgetRISING PHOENIX CONSERVATION INC: $60,000 over 6y, 6.4% of budgetSQUAM LAKES CONSERVATION SOCIETY: $56,000 over 6y, 1.5% of budgetHenry L Ferguson Museum: $45,000 over 6y, 1.0% of budgetMETROPOLITAN MUSEUM OF ART: $34,000 over 3y, 0.0% of budgetAMERICAN FRIENDS OF VERSAILLES: $29,500 over 6y, 5.7% of budgetSQUAM LAKES ASSOCIATION: $16,000 over 6y, 0.4% of budgetISLAND HEALTH PROJECT INC: $16,000 over 6y, 0.4% of budgetSpeare Memorial Hospital: $15,000 over 6y, 0.0% of budgetUBUNTU PATHWAYS INC: $15,000 over 6y, 0.2% of budgetTHE AMERICAN UNIVERSITY OF ROME: $14,500 over 4y, 0.1% of budgetST BERNARD'S SCHOOL INC: $12,000 over 6y, 0.0% of budgetLAWRENCE MEMORIAL HOSPITAL INC: $10,000 over 1y, 0.0% of budgetAMERICAN FRIENDS OF THE MUSEE DORSAY: $10,000 over 1y, 0.5% of budgetMILLBROOK SCHOOL: $10,000 over 1y, 0.0% of budgetNew Hampshire Charitable Foundation: $10,000 over 1y, 0.0% of budgetTHE LIGHTHOUSE WORKS INC: $9,500 over 6y, 0.4% of budgetHOLDERNESS SCHOOL: $7,500 over 6y, 0.0% of budgetTrustees of Dartmouth College: $6,000 over 6y, 0.0% of budgetTHE CHAPIN SCHOOL LTD: $6,000 over 6y, 0.0% of budgetSQUAM LAKES NATURAL SCIENCE CENTER: $6,000 over 6y, 0.0% of budgetWHEATON COLLEGE: $6,000 over 6y, 0.0% of budgetNEXTGEN FACE INC: $5,000 over 1y, 1.1% of budgetPARK CHILDREN'S DAY SCHOOL: $5,000 over 1y, 0.1% of budgetFISHERS ISLAND CONSERVANCY INC: $3,000 over 6y, 0.3% of budgetCENTRAL PARK TRACK CLUB CORPORATION: $2,500 over 1y, 0.5% of budgetNational Education Opportunity Network Inc: $2,500 over 1y, 0.0% of budgetFISHERS ISLAND LIBRARY ASSOCIATION: $1,500 over 6y, 0.1% of budgetISLAND PEOPLES PROJECT: $1,500 over 6y, 0.4% of budgetFISHERS ISLAND FIRE DEPARTMENT: $1,500 over 6y, 0.1% of budgetTHE BREARLEY SCHOOL: $1,500 over 6y, 0.0% of budgetMYRIAD USA INC: $1,000 over 1y, 0.0% of budgetTuxedo Park School: $1,000 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.

  • Who funds President and Fellows of Harvard College ↗
  • Who funds THOMAS JEFFERSON FOUNDATION INC ↗
  • Who funds CHARITIES AID FOUNDATION AMERICA ↗
  • Who funds RISING PHOENIX CONSERVATION INC ↗
  • Who funds SQUAM LAKES CONSERVATION SOCIETY ↗
  • Who funds Henry L Ferguson Museum ↗
  • Who funds METROPOLITAN MUSEUM OF ART ↗
  • Who funds AMERICAN FRIENDS OF VERSAILLES ↗
  • Who funds SQUAM LAKES ASSOCIATION ↗
  • Who funds ISLAND HEALTH PROJECT INC ↗
  • Who funds Speare Memorial Hospital ↗
  • Who funds UBUNTU PATHWAYS INC ↗
  • Who funds THE AMERICAN UNIVERSITY OF ROME ↗
  • Who funds ST BERNARD'S SCHOOL INC ↗
  • Who funds LAWRENCE MEMORIAL HOSPITAL INC ↗
  • Who funds AMERICAN FRIENDS OF THE MUSEE DORSAY ↗
  • Who funds MILLBROOK SCHOOL ↗
  • Who funds New Hampshire Charitable Foundation ↗
  • Who funds THE LIGHTHOUSE WORKS INC ↗
  • Who funds HOLDERNESS SCHOOL ↗
  • Who funds Trustees of Dartmouth College ↗
  • Who funds THE CHAPIN SCHOOL LTD ↗
  • Who funds SQUAM LAKES NATURAL SCIENCE CENTER ↗
  • Who funds WHEATON COLLEGE ↗
  • Who funds NEXTGEN FACE INC ↗
  • Who funds PARK CHILDREN'S DAY SCHOOL ↗
  • Who funds FISHERS ISLAND CONSERVANCY INC ↗
  • Who funds CENTRAL PARK TRACK CLUB CORPORATION ↗
  • Who funds National Education Opportunity Network Inc ↗
  • Who funds FISHERS ISLAND LIBRARY ASSOCIATION ↗
  • Who funds ISLAND PEOPLES PROJECT ↗

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 Frederic C Hamilton Family FoundationCO22.1× affinity8 shared granteesties to 11 of 11Hover any node to trace its alignments.Compare side by side →

Open a dossier: The Frederic C Hamilton Family Foundation · The Willinphila Foundation · The McCance Foundation · The Long Stems Foundation Inc · The Fairfield Foundation · The Sooner Foundation · The William C and Cindy L Scott Foundation · Trippe Fund Inc · Ederic Foundation Inc · Fleetwood Foundation · W L Lyons Brown Jr Charitable Foundation · The Emily Hall Tremaine Foundation Inc

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 Duke of Omnium Fund funds: left to right is the share of its income from government, bottom to top the share from The Duke of Omnium Fund. Bigger dots raise more.

2024
’20’21’22’23’24’25
no gov · 00%1%3%6%10%funder's share of their income ↑0%4%8%11%15%share of the org’s income from government →median 0%
  • President and Fellows of Harvard College: 7% of income from government
  • Wheaton College: 0% of income from government
  • Lawrence Memorial Hospital Inc: 0% of income from government
no gov moneyreceives it· size = income
0get no government money at all
9report government grants on their 990 we could not trace to a source (not plotted)
0rely on government for over half their income
⤢ axis zoomed · 0–15%
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.

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 44 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

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