William S & Nancy E Thompson Foundation

Foundation · Grantmaker Irvine, CA EIN: 20-6371108

William S & Nancy E Thompson Foundation is a private foundation focused on Philanthropy, Voluntarism & Grantmaking, based in Irvine, CA. IRS filing data is available from 2020 through 2024. As of 2024, the organization holds $79.1M in total assets. In 2024, it awarded 4 grants totaling $1.3M. Net investment income was $7.3M.

Key facts about William S & Nancy E Thompson Foundation

EIN: 20-6371108
Latest 990 filing: Form 990-PF, 2024
Annual giving (2024): $1,291,819
Grants made (2024): 4
Average grant: $322,955
Median grant: $220,571
Total assets: $79,098,128
Primary geography: California (100% of itemized 2024 grant dollars)

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

Who William S & Nancy E Thompson Foundation funds

By grant dollars, the top recipient states for William S & Nancy E Thompson Foundation's 4 itemized 2024 grants were California (100%). The most frequent recipient cities were Irvine, CA (2 grants). 100% of grants with a stated purpose were for general or operating support.

How William S & Nancy E Thompson Foundation gives

Giving fell 80% from 2021 to 2024. Method
In 2024 it paid out 53% of its IRS minimum distribution (the 5% rule). Foundations have until the end of the next year to meet it. Method

From the foundation's IRS Form 990-PF filings. Methodology.

Next steps with William S & Nancy E Thompson Foundation

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Financial Overview

From 2024 IRS Form 990-PF · View filing

Total Assets

$79.1M

+6.7% YoY

Annual Giving

$1.3M

-62.3% YoY

Grant Count

-42.9% YoY

Avg Grant Size

$323K

-34.1% YoY

Under IRS private-foundation payout rules, William S & Nancy E Thompson Foundation reported a distributable amount of $3.9M for 2024 — the minimum it must pay out in qualifying distributions.

About William S & Nancy E Thompson Foundation

Based on IRS filings

Focus Areas

Philanthropy, Voluntarism & Grantmaking

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Geographic Focus

Where this funder awards grants

Grant Distribution by State

California $1.3M (100%)

Connecticut $677 (0%)

Share of all 4 itemized 2024 grant dollars.

States

California Connecticut Illinois Missouri New York

Cities

IrvineOrangeNew YorkChicagoColumbiaFairfieldLake ForestLos AngelesSanta Ana

Financial History

Multi-year comparison from IRS filings

Revenue

Expenses

Qualifying Distributions

Net Investment Income

Metric	2024	2023	2022
Total Assets	$79,098,128	$74,154,248	$69,480,495
Revenue	$7,753,615	$5,001,453	$3,737,085
Expenses	$636,827	$20,890,979	$1,419,557
Qualifying Distributions	$2,030,681	$4,122,899	$4,350,381
Net Investment Income	$7,284,589	$4,317,615	$1,191,804
Distributable Amount	$3,860,984	$3,459,559	$3,626,422

Data update history

When this profile's IRS filing data changed on Grantable

March 1, 2026 IRS filings on file for fiscal years 2020–2024

Giving Over Time

Total grant dollars and number of grants per year

Grant Insights

How this funder distributes its grants

Top Recipients

Top 4 recipients in 2024

Grant Size Distribution

26 grants across all recorded years

Giving History

Grant recipients and amounts by year

Among its reported 2024 grants, the largest recipients include Pacific Symphony ($850,000), Free Wheelchair Mission ($391,142), American National Red Cross ($50,000).

Recipient	Purpose	Amount
PACIFIC SYMPHONY Irvine, CA	GENERAL SUPPORT	$850,000
FREE WHEELCHAIR MISSION Irvine, CA	GENERAL SUPPORT	$391,142
AMERICAN NATIONAL RED CROSS Santa Ana, CA	GENERAL SUPPORT	$50,000
SAVE THE CHILDREN Fairfield, CT	GENERAL SUPPORT	$677

Leadership & Key People

Officers and directors from IRS filings

Compensation Overview

From 2024 IRS filing

Name	Title	Hours	Compensation
William S Thompson	Trustee	1	—
Nancy E Thompson	Trustee	1	—
Jennifer T Lavenson	CFO	20	$44,638
Donald C Thompson	Director	30	$212,036
William S Thompson III	Trustee	1	—

Subject Areas

Focus areas based on grantmaking activity

Philanthropy, Voluntarism & Grantmaking

Frequently Asked Questions

What is William S & Nancy E Thompson Foundation?

William S & Nancy E Thompson Foundation is a private foundation focused on Philanthropy, Voluntarism & Grantmaking, based in Irvine, CA. It holds $79.1M in total assets as of 2024.

How large is William S & Nancy E Thompson Foundation?

As of 2024, William S & Nancy E Thompson Foundation holds $79.1M in total assets with $7.8M in annual revenue. It awarded 4 grants totaling $1.3M in 2024.

Where does William S & Nancy E Thompson Foundation operate?

William S & Nancy E Thompson Foundation has awarded grants in California, Connecticut, Illinois, Missouri, New York.

What size grants does William S & Nancy E Thompson Foundation award?

In 2024, William S & Nancy E Thompson Foundation awarded 4 grants totaling $1.3M — an average of about $323K per grant, based on its IRS Form 990 filings.

How much is William S & Nancy E Thompson Foundation required to give away each year?

Private foundations must generally distribute about 5% of their assets annually. For 2024, William S & Nancy E Thompson Foundation reported a distributable amount of $3.9M on its IRS Form 990-PF — the minimum it must pay out in qualifying distributions.

What is William S & Nancy E Thompson Foundation's EIN?

William S & Nancy E Thompson Foundation's EIN (Employer Identification Number) is 20-6371108. IRS Form 990 filing data is available on this page for 2020–2024.