The William K Warren Foundation | Foundation Profile

GrantBay analyzes IRS Form 990-PF data to help grant seekers find fit funders like The William K Warren Foundation. Data shown is extracted from Form 990-PF filings.

EIN: 73-0609599

Foundation Overview

Based in Tulsa, OK, The William K Warren Foundation has awarded 6 grants totaling $117,176,170 to organizations in Oklahoma. Individual grants range from $14,186,718 to $22,185,143, with a median award of $21,106,890.

Latest Tax Year
2024
Total Giving (all years)
$117,176,170
Total Assets
$515,250,513
Median Grant (all grants)
$21,106,890

Latest Form 990-PF Snapshot

Total Grants
1
Median Grant
$22,185,143
% No Significant Change
4% (vs previous year)
Data extracted from IRS Form 990-PF filings. Last filing year: March 2026

Foundation Intelligence

Advanced analytics and strategic insights to help nonprofit organizations assess grant opportunities and optimize their application strategies

New Applicant Friendliness
Limited Sample: 0%

1 total grant. Insufficient data for reliable pattern analysis. Foundation may be highly selective or recently established.

Geographic Focus
Oklahoma

100% of all grants are concentrated in Oklahoma, demonstrating highly focused geographic giving. This foundation prioritizes deep community impact in its primary service area. Within Oklahoma, funding concentrates in Tulsa (100%).

Funding Trajectory
+56%

Strong 56% growth in annual giving over 4 years indicates expanding philanthropic capacity and increasing opportunities for grant seekers. This upward trajectory suggests growing foundation resources and commitment.

Program Areas
General Purposes

Highly focused on general purposes with 100% of funding dedicated to this sector. This specialization indicates deep expertise and committed investment in the field.

Where is The Money Going?

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Grants & Funding

Analyzing past grantees provides valuable insights into The William K Warren Foundation's funding preferences, organizational priorities, and grant making patterns. This historical data helps potential applicants understand the foundation's strategic focus and identify successful funding approaches.

Name Amount Location Purpose Year
Statement 29a $22,185,143 Tulsa, OK, US Statement 29a 2024
Statement 30a $21,283,613 Tulsa, OK, US See Statement 30a 2023
Statement 30a $21,106,890 Tulsa, OK, US See Statement 30a 2022
Statement 30a $21,106,890 Tulsa, OK, US See Statement 30a 2022
Statement 28 $17,306,916 Tulsa, OK, US See Statement 28a 2021
Attachment 21 $14,186,718 Tulsa, OK, US See Attachment 2020

Foundations Similar to The William K Warren Foundation

Discover 5 foundations with comparable assets ($264,268,092-$507,170,812), similar grant patterns, and geographic focus in OK that may also align with your organization's funding needs and grant seeking strategy.

Foundation Name Total Assets Typical Grant Size Service Area Similarity Match

EIN: 73-1167188 | 2133 grants awarded
$507,170,812
(≈ Similar)
$10,000
median grant
Oklahoma City, OK
Same state
66%
Good match

EIN: 73-1286874 | 4891 grants awarded
$487,768,923
(≈ Similar)
$20,000
median grant
Tulsa, OK
Same state
65%
Good match

EIN: 73-1499528 | 141 grants awarded
$321,553,383
(↓ Smaller)
$50,000
median grant
Tulsa, OK
Same state
58%
Moderate match

EIN: 73-1463569 | 1308 grants awarded
$309,561,248
(↓ Smaller)
$25,000
median grant
Oklahoma City, OK
Same state
57%
Moderate match

EIN: 73-6301100 | 483 grants awarded
$264,268,092
(↓ Smaller)
$10,000
median grant
Tulsa, OK
Same state
54%
Moderate match

Contact Information

Official contact details for The William K Warren Foundation as registered with the IRS. These details are essential for grant applications, correspondence, and due diligence processes.

EIN 73-0609599
Website http://www.williamkwarrenfoundation.org
Address PO BOX 470372 Tulsa, OK 74147-0372

Key People (14)

Board members, trustees, and key staff who oversee The William K Warren Foundation's grant making decisions and strategic direction. Understanding leadership composition can provide insights into foundation priorities and potential networking opportunities.

Director & Chairman Emeritus W K Warren Jr
Dir & Chairman Of Bd(end 5/24) W R Lissau
Director & Sr Vice President S K Warren
Ceo & Chairman (Beg 5/24) J-k C Warren
President & Director(beg 5/24) T Cooper

Forms 990-PF

IRS Form 990-PF filings provide comprehensive financial information, grant details, and operational data. These documents are essential resources for understanding foundation capacity, giving patterns, and strategic priorities.

Form 990-PF Research Tips
  • Review Part XV for detailed grant recipient information and funding purposes
  • Check Part I for total assets, annual giving amounts, and payout requirements
  • Examine Part VIII for key personnel compensation and board structure
  • Look for trends across multiple years to understand giving patterns

About This Foundation Profile

This comprehensive foundation profile for The William K Warren Foundation is powered by Grant Bay's advanced foundation research platform. Our system analyzes IRS Form 990-PF filings, grant histories, and philanthropic patterns to provide nonprofit organizations with actionable intelligence for grant seeking success.

Data Sources & Accuracy

All information is derived from official IRS filings and public records. Grant Bay processes thousands of Form 990-PF documents to extract grant details, financial data, and organizational information. Data accuracy depends on foundation reporting quality and IRS filing completeness.

Research Applications

Use this profile for prospect research, grant strategy development, application preparation, and relationship building. Combine this data with additional research on foundation priorities, application processes, and board member backgrounds for comprehensive grant seeking strategies.

Data Currency: Last updated March 2026 based on IRS Form 990-PF filings. Foundation information reflects most recent available tax year data.