Bruce and Deborah Duncan Foundation

Foundation · Grantmaker NAPLES, FL EIN: 20-3871657

The Bruce and Deborah Duncan Foundation is a private foundation based in Naples, Florida. Established in 2005, it operates as a family foundation with a focus on philanthropic giving across multiple sectors.

Key facts about Bruce and Deborah Duncan Foundation

EIN
20-3871657
Latest 990 filing
Form 990-PF, 2024
Annual giving (2024)
$1,190,000
Grants made (2024)
45
Average grant
$26,444
Median grant
$10,000
Total assets
$39,021,715
Primary geography
District of Columbia (50% of itemized 2024 grant dollars)

Data from IRS Form 990-PF, 2024; updated June 2026.

Who Bruce and Deborah Duncan Foundation funds

By grant dollars, the top recipient states for Bruce and Deborah Duncan Foundation's 45 itemized 2024 grants were District of Columbia (50%), Florida (23%) and Massachusetts (13%). The most frequent recipient cities were Naples, FL (11 grants), Nantucket, MA (8 grants), Chicago, IL (7 grants) and Washington, DC (6 grants). 64% of grants with a stated purpose were for general or operating support.

Financial Overview

From 2024 IRS Form 990-PF · View filing

Total Assets

$39.0M

+30.1% YoY

Annual Giving

$1.2M

-3.3% YoY

Grant Count

45

-11.8% YoY

Avg Grant Size

$26K

+9.6% YoY

Under IRS private-foundation payout rules, Bruce and Deborah Duncan Foundation reported a distributable amount of $1.5M 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 foundation does not provide a public mission statement. However, its primary funding interests include:

  • Education
  • Science and STEM education
  • Human Services
  • Philanthropy, Voluntarism & Grantmaking

Grantmaking

The foundation made an additional 35 grants totaling $1,080,000 in 2024.

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Geographic Focus

Where this funder awards grants

The foundation primarily funds organizations in:

  • Florida
  • Illinois
  • Massachusetts

Grant Distribution by State

15states

Share of all 45 itemized 2024 grant dollars.

Cities

NaplesNantucketChicagoWashingtonNew YorkCharlotteFort MyersGambierPhiladelphiaSiasconsetWauchulaProvidenceMarco IslandPonte Vedra BeachAmelia IslandAtlantaBala CynwydBaltimoreBethesdaBoca Raton

Financial History

Multi-year comparison from IRS filings

As of December 2024:

  • Total assets: $39,021,715
  • Total revenues: $19,223,490
  • Total expenses: $1,334,000
  • Number of employees: 0
Revenue
Expenses
Qualifying Distributions
Net Investment Income
$0$5M$11M$16M$21M20202021202220232024
Metric202420232022
Total Assets$39,021,715$29,993,040$22,154,078
Revenue$19,223,490$8,814,787$1,684,298
Expenses$1,334,000$1,241,095$1,342,246
Qualifying Distributions$1,193,412$1,234,675$1,340,000
Net Investment Income$13,601,269$5,805,281$709,668
Distributable Amount$1,520,857$1,179,163$1,228,159

Giving Over Time

Total grant dollars and number of grants per year

$0$335K$670K$1M$1M32 grants202036 grants202139 grants202251 grants202345 grants2024

Grant Insights

How this funder distributes its grants

Top Recipients

Top 10 recipients in 2024

The Heritage Foundation$500KHarry Chapin Food Bank o…$50KArtis-Naples$25KCATO Institute$25KForest Bluff School Inc$25KGreat Harbor Yacht Club …$25KHoover Institution$25KNantucket Conservation F…$25KNCH Center for Philanthr…$25KNorthwestern Memorial Fo…$25K

Grant Size Distribution

203 grants across all recorded years

185<$50K13$50–100K1$100–250K2$250–500K2$500K–1M$1–5M$5M+

Giving History

Grant recipients and amounts by year

Among its reported 2024 grants, the largest recipients include The Heritage Foundation ($500,000), Harry Chapin Food Bank of Southwest Florida ($50,000), Artis-Naples ($25,000).

RecipientPurposeAmount
The Heritage Foundation Washington, DCGeneral Operating Support$500,000
Harry Chapin Food Bank of Southwest Florida Fort Myers, FLGeneral Operating Support$50,000
Artis-Naples Naples, FLGeneral Operating Support$25,000
CATO Institute Washington, DCGeneral Operating Support$25,000
Forest Bluff School Inc Lake Bluff, ILGeneral Operating Support$25,000
Great Harbor Yacht Club Foundation Nantucket, MAGeneral Operating Support$25,000
Hoover Institution Washington, DCGeneral Operating Support$25,000
Nantucket Conservation Foundation Nantucket, MAGeneral Operating Support$25,000
NCH Center for Philanthropy Naples, FLHeart, Vascular and Stroke Care Fund$25,000
Northwestern Memorial Foundation Chicago, ILGeneral Operating Support$25,000

Leadership & Key People

Leadership team and compensation from IRS filings

The foundation is supported by Bruce W. Duncan.

Compensation Overview

From 2024 IRS filing

From 2024 filing

NameTitleHoursCompensation
Bruce W DuncanPresident1—
Deborah E DuncanVice President1—

Contact Information

  • Address: PO Box 3249, Naples, FL 34106-3249
  • Telephone: 312-475-9147
  • EIN: 20-3871657

Subject Areas

Focus areas based on grantmaking activity

Frequently Asked Questions

What does Bruce and Deborah Duncan Foundation fund?

The foundation does not provide a public mission statement. However, its primary funding interests include: • Education • Science and STEM education • Human Services • Philanthropy, Voluntarism & Grantmaking

How do I apply for a grant from Bruce and Deborah Duncan Foundation?

**Grant Activity:** • Made 32 grants in 2024 • Total giving in 2024: $1,190,000 • Typical award range: $2,000–$540,000 **Recent Grants (2024):** • The Heritage Foundation: $500,000 (General Operating Support) • Harry Chapin Food Bank of Southwest Florida: $50,000 (General Operating Support) • Great Harbor Yacht Club Foundation: $25,000 (General Operating Support) The foundation made an additional 35 grants totaling $1,080,000 in 2024.

Where does Bruce and Deborah Duncan Foundation make grants?

The foundation primarily funds organizations in: • Florida • Illinois • Massachusetts

What size grants does Bruce and Deborah Duncan Foundation award?

In 2024, Bruce and Deborah Duncan Foundation awarded 45 grants totaling $1.2M — an average of about $26K per grant, based on its IRS Form 990 filings.

How much is Bruce and Deborah Duncan Foundation required to give away each year?

Private foundations must generally distribute about 5% of their assets annually. For 2024, Bruce and Deborah Duncan Foundation reported a distributable amount of $1.5M on its IRS Form 990-PF — the minimum it must pay out in qualifying distributions.

What is Bruce and Deborah Duncan Foundation's EIN?

Bruce and Deborah Duncan Foundation's EIN (Employer Identification Number) is 20-3871657. IRS Form 990 filing data is available on this page for 2020–2024.

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

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