The William A Williamson Family Foundation

Private foundation Wilmington, DE EIN: 20-8038122

The William A Williamson Family Foundation is a private foundation, based in Wilmington, DE. IRS filing data is available from 2019 through 2025. As of 2025, the organization holds $211K in total assets. In 2025, it made $6K in qualifying distributions. Net investment income was $16K.

The William A Williamson Family Foundation at a glance

Total assets
$211,138
+4.6% vs 2024
Revenue (2025)
$15,569
+32.4% vs 2024
Qualifying distributions (2025)
$6,104
-23.3% vs 2024
Expenses (2025)
$6,304
-21.8% vs 2024
Latest 990 filing
Form 990-PF, 2025 View filing

Data from IRS Form 990-PF, 2025; updated October 2026.

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Financial History

Multi-year comparison from IRS filings

Figures from IRS filings, by filing year
Filing yearTotal AssetsRevenueExpensesQualifying DistributionsNet Investment IncomeDistributable Amount
2025$211,138$15,569$6,304$6,104$15,569$13,137
2024$201,873$11,755$8,058$7,958$11,755$12,243
2023$198,176$5,957$7,820$7,762$5,957$10,521
2022$200,039$4,139$7,879$7,709$4,139$10,353
2021$203,779$12,231$7,161$7,145$12,231$11,586
2020$198,709$-8,918$7,005—$1,130$9,913
2019$214,632$12,947$6,056—$12,897$10,266

Under IRS private-foundation payout rules, The William A Williamson Family Foundation reported a distributable amount of $13K for 2025 — the minimum it must pay out in qualifying distributions.

Leadership & Key People

Officers and directors from IRS filings

The William A Williamson Family Foundation is led by William A Williamson Jr., President, Director & Secretary on every filing since 2019; none of the 4 officers listed in 2025 report compensation.

Officers on the 2025 filing

  • William A Williamson Jr.

    President, Director & Secretary

    On filings since 2019

    1 hr/week

    No compensation reported

  • Patricia S Williamson

    Vice President & Director

    On filings since 2019

    1 hr/week

    No compensation reported

  • Virginia Paige Williamson

    Vice President & Director

    On filings since 2019

    1 hr/week

    No compensation reported

  • William A Williamson III

    Vice President & Director

    On filings since 2019

    1 hr/week

    No compensation reported

Data from IRS Form 990 filings, 2019–2025. "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 William A Williamson Family Foundation

How large is The William A Williamson Family Foundation?

The William A Williamson Family Foundation reported $211K in total assets on its 2025 IRS Form 990-PF. It paid out $6K in qualifying distributions that year, against a required minimum of $13K (roughly 5% of its investment assets). Falling short in one year is not a violation: foundations have until the end of the next year to meet the minimum.

What is The William A Williamson Family Foundation's EIN?

The William A Williamson Family Foundation's EIN (Employer Identification Number) is 20-8038122. IRS Form 990 filing data is available on this page for 2019–2025.

Data last updated October 2026. Sourced from IRS Form 990-PF filings.

Data update history

(3)

When this profile's IRS filing data changed on Grantable

  1. Added Form 990-PF for fiscal year 2019 (received by the IRS April 30, 2020)
  2. Added Form 990-PF for fiscal year 2025 (received by the IRS June 25, 2026)
  3. IRS filings on file for fiscal years 2020–2024

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The filing figures on this page are open data under CC BY 4.0. About GrantGraph Open

Figures come from The William A Williamson Family Foundation'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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