The William K Warren Foundation
The William K Warren Foundation is a private foundation focused on Philanthropy, Voluntarism & Grantmaking, based in TULSA, OK. IRS filing data is available from 2020 through 2024. As of 2024, the organization holds $331.4M in total assets. In 2024, it awarded 1 grants totaling $22.2M. Net investment income was $22.1M.
Financial Overview
From 2024 IRS Form 990-PF · View filing
Total Assets
$331.4M
+2.0% YoY
Annual Giving
$22.2M
+4.2% YoY
Grant Count
1
+0.0% YoY
Avg Grant Size
$22.2M
+4.2% YoY
Under IRS private-foundation payout rules, The William K Warren Foundation reported a distributable amount of $24.6M for 2024 — the minimum it must pay out in qualifying distributions.
About The William K Warren Foundation
Based on IRS filings
The William K Warren Foundation is a private foundation focused on Philanthropy, Voluntarism & Grantmaking, based in TULSA, OK. IRS filing data is available from 2020 through 2024. As of 2024, the organization holds $331.4M in total assets. In 2024, it awarded 1 grants totaling $22.2M. Net investment income was $22.1M.
Focus Areas
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Geographic Focus
Where this funder awards grants
Grant Distribution by State
States
Cities
Financial History
Multi-year comparison from IRS filings
| Metric | 2024 | 2023 | 2022 |
|---|---|---|---|
| Total Assets | $331,363,796 | $324,945,641 | $326,242,777 |
| Revenue | $28,720,838 | $26,542,294 | $34,266,089 |
| Expenses | $28,385,574 | $27,729,284 | $25,642,380 |
| Qualifying Distributions | $23,002,482 | $22,071,784 | $21,792,818 |
| Net Investment Income | $22,140,584 | $22,432,198 | $29,594,399 |
| Distributable Amount | $24,581,577 | $22,950,664 | $22,100,193 |
Giving Over Time
Total grant dollars and number of grants per year
Grant Insights
How this funder distributes its grants
Top Recipients
Top 1 recipients in 2024
Grant Size Distribution
5 grants across all recorded years
Open Grants
1 open opportunity from The William K Warren Foundation
Giving History
Grant recipients and amounts by year
Among its reported 2024 grants, the largest include Statement 29a ($22,185,143).
| Recipient | Purpose | Amount |
|---|---|---|
| STATEMENT 29A TULSA, OK | STATEMENT 29A | $22,185,143 |
Leadership & Key People
Officers and directors from IRS filings
Compensation Overview
From 2024 IRS filing
From 2024 filing
| Name | Title | Hours | Compensation |
|---|---|---|---|
| W K WARREN jr | DIRECTOR & CHAIRMAN EMERITUS | 5 | — |
| W R LISSAU | DIR & CHAIRMAN OF BD(END 5/24) | 10 | — |
| S K Warren | DIRECTOR & SR VICE PRESIDENT | 40 | $214,130 |
| J-K C Warren | CEO & CHAIRMAN (BEG 5/24) | 40 | $761,000 |
| T COOPER | PRESIDENT & DIRECTOR(BEG 5/24) | 40 | $758,886 |
| D AFFELDT | ASSISTANT TREASURER | 40 | $191,240 |
| F W Murphy III | DIRECTOR | 0.5 | $500 |
| W W O'CONNOR | DIRECTOR | 0.5 | $500 |
| M E YOUNG | DIRECTOR | 0.5 | — |
| J ADAMS | SECRETARY | 40 | $110,700 |
| D MCMANUS | ASSISTANT SECRETARY | 40 | $88,660 |
| J PIERCE | TREASURER | 40 | $215,850 |
| A N WARREN | DIRECTOR | 0.5 | — |
| M S BLANKENSHIP | DIRECTOR | 0.5 | — |
Subject Areas
Focus areas based on grantmaking activity
Frequently Asked Questions
What is The William K Warren Foundation?
The William K Warren Foundation is a private foundation focused on Philanthropy, Voluntarism & Grantmaking, based in TULSA, OK. It holds $331.4M in total assets as of 2024.
How large is The William K Warren Foundation?
As of 2024, The William K Warren Foundation holds $331.4M in total assets with $28.7M in annual revenue. It awarded 1 grants totaling $22.2M in 2024.
Where does The William K Warren Foundation operate?
The William K Warren Foundation has awarded grants in Oklahoma.
What size grants does The William K Warren Foundation award?
In 2024, The William K Warren Foundation awarded 1 grants totaling $22.2M — an average of about $22.2M per grant, based on its IRS Form 990 filings.
How much is The William K Warren Foundation required to give away each year?
Private foundations must generally distribute about 5% of their assets annually. For 2024, The William K Warren Foundation reported a distributable amount of $24.6M on its IRS Form 990-PF — the minimum it must pay out in qualifying distributions.
What is The William K Warren Foundation's EIN?
The William K Warren Foundation's EIN (Employer Identification Number) is 73-0609599. IRS Form 990 filing data is available on this page for 2020–2024.
Explore Open Grants
Browse active grant opportunities in The William K Warren Foundation's focus areas in our free grants database
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Data last updated April 2026. Sourced from IRS Form 990-PF filings.