Marmot Foundation

REHOBOTH BEACH, DE EIN: 51-6022487 Website

The Marmot Foundation is a private family foundation established in 1968 and based in Rehoboth Beach, Delaware. The foundation is affiliated with the DuPont family and is managed by the Wilmington Trust Company. It has been a significant contributor to various philanthropic initiatives, particularly those addressing community needs in its home state.

Financial Overview

From 2024 IRS Form 990-PF · View filing

Total Assets

$21.2M

-6.5% YoY

Annual Giving

$2.8M

+38.2% YoY

Grant Count

-95.6% YoY

Avg Grant Size

$1.4M

+3009.3% YoY

Under IRS private-foundation payout rules, Marmot Foundation reported a distributable amount of $2.1M for 2024 — the minimum it must pay out in qualifying distributions.

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

Mission & Focus Areas

The Marmot Foundation supports health, education, culture, youth, human services, and the environment. The foundation has been a major contributor to health initiatives that address damages caused by chemical leaks at DuPont facilities and their surrounding communities.

Grantmaking

The foundation does not maintain a formal application process or website. Grantseekers can submit written proposals to the foundation's mailing address in Rehoboth Beach, Delaware, directed to the attention of Willis H. du Pont. The foundation requests that organizations submit proposals in April or October, as it makes grant determinations in May and November. No formal application documents are required.

Grant Range

s & Activity:**

How to Apply

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Geographic Focus

Where this funder awards grants

The foundation primarily funds initiatives in Delaware, where the DuPont company is headquartered. While the foundation's grantmaking interests are fairly broad, it keeps most of its grants close to home, with the majority of funding directed to Delaware-based organizations.

Grant Distribution by State

Pennsylvania $5.1M (52%)

Florida $2.4M (24%)

Idaho $1.0M (10%)

Delaware $605K (6%)

New York $290K (3%)

Minnesota $185K (2%)

Ohio $145K (1%)

Virginia $130K (1%)

States

Delaware Florida Idaho Minnesota New York Ohio Pennsylvania Virginia

Cities

Avon LakeBellevueCentervilleChadds FordCoral GablesDaytona BeachDoverGeorgetownGeorgetown WayHaileyJenkintownKetchumMiltonMontchaninNew CastleNew YorkNewarkNorfolkOcean ViewOdessa

Financial History

Multi-year comparison from IRS filings

As of Most Recent Filing (2023):

Total assets: $22,656,676
Total revenues: $1,077,130
Total expenses: $2,189,209
Investment income and dividends: $713,785
Net gain from sale of non-inventory assets: $330,404

Historical Assets (2024):

Total assets: $21,182,193

Revenue

Expenses

Qualifying Distributions

Net Investment Income

Metric	2024	2023	2022
Total Assets	$21,182,193	$22,656,676	$23,760,729
Revenue	$1,455,185	$1,077,130	$725,886
Expenses	$2,954,642	$2,189,209	$2,238,777
Qualifying Distributions	$2,750,000	$1,990,000	$2,050,000
Net Investment Income	$1,263,437	$885,457	$815,248
Distributable Amount	$2,059,143	$1,692,571	$1,706,107

Giving Over Time

Total grant dollars and number of grants per year

Grant Insights

How this funder distributes its grants

Top Recipients

Top 2 recipients in 2024

Grant Size Distribution

183 grants across all recorded years

Giving History

Grant recipients and amounts by year

Among its reported 2024 grants, the largest include National Philanthropic Trust Torque Foundation ($2,700,000), New Hope Charities Inc ($50,000).

Recipient	Purpose	Amount
NATIONAL PHILANTHROPIC TRUST TORQUE FOUNDATION JENKINTOWN, PA	GENERAL/EDUCATIONAL	$2,700,000
NEW HOPE CHARITIES INC WEST PALM BEACH, FL	GENERAL/EDUCATIONAL	$50,000

Leadership & Key People

Leadership team and compensation from IRS filings

Willis H. du Pont — Chairman
Charles F. Gummey Jr. — Trustee
Lammot J. du Pont — Trustee

Other DuPont family members serve as trustees.

Compensation Overview

From 2024 IRS filing

From 2024 filing

Name	Title	Hours	Compensation
WILLIS H DUPONT	CHAIRMAN	2	—
LAMMOT J DUPONT	TRUSTEE	2	—
MIREN DEA DUPONT	TRUSTEE	2	—
MIREN DUPONT SANCHEZ	TRUSTEE	2	—

Contact Information

Mailing Address: PO Box 323 Rehoboth Beach, DE 19971-0323

Frequently Asked Questions

What does Marmot Foundation fund?

How do I apply for a grant from Marmot Foundation?

**Grant Sizes & Activity:** • Total annual giving: $2,750,000 • Typical award range: $5,000–$2,700,000 • Recent grants (2023) include: • Hospital for Special Surgery (HSS): $110,000 • Sun Valley Community School: $75,000 • St Luke's Wood River Foundation: $60,000 • Made 86 grants in the most recent reporting year **Application Process:** The foundation does not maintain a formal application process or website. Grantseekers can submit written proposals to the foundation's mailing address in Reho…

Where does Marmot Foundation make grants?

What size grants does Marmot Foundation award?

In 2024, Marmot Foundation awarded 2 grants totaling $2.8M — an average of about $1.4M per grant, based on its IRS Form 990 filings.

How much is Marmot Foundation required to give away each year?

Private foundations must generally distribute about 5% of their assets annually. For 2024, Marmot Foundation reported a distributable amount of $2.1M on its IRS Form 990-PF — the minimum it must pay out in qualifying distributions.