The Duke of Omnium Fund

Private foundation · Grantmaker New York, NY EIN: 13-3740798

The Duke of Omnium Fund is a private foundation located in New York, NY. Its 2025 filing reports grants to organizations with purposes listed as charitable, including educational, cultural, health, and conservation organizations.

The Duke of Omnium Fund at a glance

In short: The Duke of Omnium Fund gave $205K across 35 grants in 2025 (avg $6K), top state Massachusetts. 14% of 2025 grantees were new. Source: 2025 IRS Form 990-PF.

Annual giving (2025)
$204,750
-46.2% vs 2024
Grants made (2025)
35
+9.4% vs 2024
Average grant
$5,850
-50.8% vs 2024
Median grant
$1,000
Total assets
$2,659,101
+14.6% vs 2024
New grantees (estimate)
14% first-time grantees (5 of 35, 2025)
Primary geography
Massachusetts (32% of itemized 2025 grant dollars)
Latest 990 filing
Form 990-PF, 2025 View filing

Data from IRS Form 990-PF, 2025; updated September 2026. New grantees are estimated by matching recipient names across years (methodology).

How to apply to The Duke of Omnium Fund

How to Apply

The foundation does not restrict giving to preselected organizations. Its filing says to apply by correspondence with an outline of purpose. Requests for individual grants are not eligible.

Contact

Application contact: Co Sullivan Cromwell Llp
Mailing address: 125 Broad Street, New York, NY 10004-2498
Phone: (212) 558-4000

Application details from Grantable's research on the foundation's public materials; confirm on its website before applying.

Who The Duke of Omnium Fund funds

How this funder distributes its grants

Top Recipients

Top 10 recipients in 2025

President and Fellows of Harvard College: $54KPresident and Fellows ofHarvard College$54KRare Book School: $35KRare Book School$35KThomas Jefferson Foundation: $25KThomas Jefferson Foundation$25KMetropolitan Museum of Art: $12KMetropolitan Museum of Art$12KAmerican Friends of the Musee dOrsay: $10KAmerican Friends of the MuseedOrsay$10KHarvard Business School: $10KHarvard Business School$10KHenry L Ferguson Museum: $10KHenry L Ferguson Museum$10KRising Phoenix Conservation Inc: $10KRising Phoenix ConservationInc$10KNextGen Face Inc: $5KNextGen Face Inc$5KUniversity of Virginia: $5KUniversity of Virginia$5K

The largest 2025 recipient was President and Fellows of Harvard College ($54K). Together the top 10 received $176K.

Grant Size Distribution

165 grants across all recorded years

160<$50K3$50–100K2$100–250K$250–500K$500K–1M$1–5M$5M+

The most common grant size was under $50K: 160 grants of 165 (97%).

Geographic Focus

Where this funder awards grants

In 2025, grant dollars went to recipients in Massachusetts (32%), Virginia (32%), New York (26%), New Hampshire (5%), and California (5%).

Grant Distribution by State

8states

Share of 2025 grant dollars across all 35 itemized grants.

Cities

Fishers IslandNew YorkHoldernessCharlottesvillePlymouthCambridgeBostonChicagoHanoverLaconiaNortonSausalitoAlexandriaDallasConcordMillbrookNew LondonTuxedo Park

Is The Duke of Omnium Fund open to new grantees?

14%

first-time grantees, 2025

In 2025, 5 of 35 grantees (14%) were first-time recipients. First grants averaged $5K; repeat grants $6K. How we count

Medians: $5K first-time, $1K repeat.

  • 86% of 2025 grantees were also funded in 2024. Method
  • Giving fell 29% from 2022 to 2025. Method
  • In 2025 it paid out 150% of its IRS minimum distribution (the 5% rule). Method

Estimate from itemized grant lists in IRS Form 990-PF filings (2020–2025). Recipient names are matched across years, so a renamed or misspelled grantee can look new; grants to individuals are left out. Methodology.

Giving History

Giving Over Time

Total grant dollars and number of grants per year

$0$100K$200K$300K$400K31 grants2020 31 grants2021 32 grants2022 35 grants2023 32 grants2024 35 grants2025

From 2020 to 2025, annual grant giving ranged from $205K (2025) to $380K (2024). In 2025 it made 35 grants totaling $205K.

Grants by year

Grant recipients and amounts by year

RecipientPurposeAmount
President and Fellows of Harvard College Cambridge, MACharitable Purposes$54,000
Rare Book School Charlottesville, VACharitable Purposes$35,000
Thomas Jefferson Foundation Charlottesville, VACharitable Purposes$25,000
Metropolitan Museum of Art New York, NYCharitable Purposes$12,000
American Friends of the Musee dOrsay New York, NYCharitable Purposes$10,000
Harvard Business School Boston, MACharitable Purposes$10,000
Henry L Ferguson Museum Fishers Island, NYCharitable Purposes$10,000
Rising Phoenix Conservation Inc Sausalito, CACharitable Purposes$10,000
NextGen Face Inc New York, NYCharitable Purposes$5,000
University of Virginia Charlottesville, VACharitable Purposes$5,000
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Financial History

Multi-year comparison from IRS filings

Figures from IRS filings, by filing year
Filing yearTotal AssetsRevenueExpensesGrants paidGrantsQualifying DistributionsNet Investment IncomeDistributable Amount
2025$2,659,101$588,181$249,116$204,75035$212,770$161,205$141,970
2024$2,320,035$541,302$411,364$380,44032$384,290$136,179$122,769
2023$2,190,098$476,351$398,338$370,94035$374,960$69,539$109,476
2022$2,112,084$487,195$307,815$289,75032$290,170$82,857$108,103
2021$1,932,703$436,912$232,105$206,25031$210,260$33,826$105,254
2020$1,727,898$423,933$251,912$230,50031—$33,917$79,709

Under IRS private-foundation payout rules, The Duke of Omnium Fund reported a distributable amount of $142K for 2025 — the minimum it must pay out in qualifying distributions.

Research compiled by Grantable AI from public sources. Last updated September 2026.

Mission & Focus Areas

No mission statement or formal funding priorities are stated. The 2025 grantees describe a range of purposes: Harvard College says it provides education and research across academic domains; the Metropolitan Museum of Art says it collects, studies, conserves, and presents art; and Rising Phoenix Conservation says it supports organizations working to conserve endangered wildlife and habitats. These are the grantees’ stated missions, not the fund’s.

Grantmaking

In 2025, the fund made 35 grants totaling $204,750. Grants ranged from $250 to $54,000, with a median of $1,000. Larger awards included $54,000 to President and Fellows of Harvard College, $35,000 to Rare Book School, $25,000 to the Thomas Jefferson Foundation, and $12,000 to the Metropolitan Museum of Art. The fund also awarded $10,000 each to American Friends of the Musee dOrsay, Harvard Business School, Henry L Ferguson Museum, and Rising Phoenix Conservation Inc.

Leadership & Key People

Leadership team and compensation from IRS filings

Peter Coolidge is listed as a trustee on the 2025 filing.

The Duke of Omnium Fund is led by Peter Coolidge, Trustee on every filing since 2020 — the only officer listed, and uncompensated.

Officers on the 2025 filing

  • Peter Coolidge

    Trustee

    On filings since 2020

    1 hr/week

    No compensation reported

Data from IRS Form 990 filings, 2020–2025. "On filings since" is the earliest filing we hold that lists the person; hours are average hours per week as reported.

Frequently asked questions about The Duke of Omnium Fund

How much does The Duke of Omnium Fund give each year?

The Duke of Omnium Fund gave $205K across 35 grants in 2025, according to its 2025 IRS Form 990-PF. In 2024 it gave $380K across 32 grants.

What is The Duke of Omnium Fund's typical grant size?

The Duke of Omnium Fund's median grant in 2025 was $1,000, and its average grant was $5,850, across 35 grants on its 2025 IRS Form 990-PF. Organizations receiving their first grant from The Duke of Omnium Fund that year got $5K on average.

Where does The Duke of Omnium Fund give grants?

The Duke of Omnium Fund's top state is Massachusetts, with 32% of the grant dollars itemized on its 2025 IRS Form 990-PF. The next largest states were Virginia (32%) and New York (26%). The most frequent recipient cities were Fishers Island, NY (10 grants), New York, NY (8 grants), Charlottesville, VA (3 grants) and Holderness, NH (3 grants).

Who are The Duke of Omnium Fund's largest grantees?

The Duke of Omnium Fund's largest 2025 grantees include President and Fellows of Harvard College ($54,000), Rare Book School ($35,000) and Thomas Jefferson Foundation ($25,000), according to its 2025 IRS Form 990-PF. Together they received 56% of its itemized 2025 grant dollars.

How large is The Duke of Omnium Fund?

The Duke of Omnium Fund reported $2.7M in total assets on its 2025 IRS Form 990-PF. It paid out $213K in qualifying distributions that year, against a required minimum of $142K (roughly 5% of its investment assets).

What does The Duke of Omnium Fund fund?

No mission statement or formal funding priorities are stated. See mission & focus areas ↑

How do I apply for a grant from The Duke of Omnium Fund?

The foundation does not restrict giving to preselected organizations. Eligibility and process details are in the grantmaking section of this profile. See how to apply ↑

What is The Duke of Omnium Fund's EIN?

The Duke of Omnium Fund's EIN (Employer Identification Number) is 13-3740798. IRS Form 990 filing data is available on this page for 2020–2025.

Data last updated September 2026. Sourced from IRS Form 990-PF filings. Research dossier generated September 2026.

Data update history

(6)

When this profile's IRS filing data changed on Grantable

  1. Updated Form 990-PF for fiscal year 2020 (received by the IRS November 3, 2021)
  2. Updated Form 990-PF for fiscal year 2021 (received by the IRS November 11, 2022)
  3. Updated Form 990-PF for fiscal year 2022 (received by the IRS May 4, 2023)
  4. Updated Form 990-PF for fiscal year 2023 (received by the IRS September 27, 2024)
  5. Updated Form 990-PF for fiscal year 2024 (received by the IRS October 29, 2025)
  6. Added Form 990-PF for fiscal year 2025 (received by the IRS May 13, 2026)

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Cite this profile

Grantable. (2026). The Duke of Omnium Fund funder profile. GrantGraph. Retrieved October 6, 2026, from https://grantable.co/funders/the-duke-of-omnium-fund-morg_51daade9f29048a697f9235bfe72bd00

BibTeX
@misc{grantable_133740798_2026,
  author       = {{Grantable}},
  title        = {{The Duke of Omnium Fund funder profile}},
  howpublished = {GrantGraph},
  year         = {2026},
  url          = {https://grantable.co/funders/the-duke-of-omnium-fund-morg_51daade9f29048a697f9235bfe72bd00},
  note         = {Accessed 2026-10-06. Data licensed CC BY 4.0}
}

The figures on this page are open data under CC BY 4.0: reuse them with credit to Grantable and a link. Download the data.

Figures come from The Duke of Omnium Fund's IRS filings (methodology). AI-written summaries, news items and logos are not covered by the open licence. Spot an error? Email hello@grantable.co.

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