The Thiry-O'Leary Foundation is a private family foundation established in September 2012 and based in Denver, Colorado. The foundation operates as a 501(c)(3) charitable organization with a volunteer leadership team.
Financial Overview
From 2024 IRS Form 990-PF · View filing
Total Assets
—
Annual Giving
$2.9M
+62.1% YoY
Grant Count
49
+40.0% YoY
Avg Grant Size
$60K
+15.8% YoY
Mission & Focus Areas
The foundation focuses on funding initiatives across multiple subject areas, including:
- Education
- Environment and natural resources
- Land resources
- Philanthropy and grantmaking
- Human services
Grantmaking
The foundation does not accept unsolicited applications. Funding is by invitation only.
Grant Range
$10,000
Average Grant
approximately $42,100–$205,000
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Geographic Focus
Where this funder awards grants
The foundation supports projects across multiple U.S. states and cities, including:
- California
- Colorado
- Connecticut
- Florida
- Illinois
- Maryland
- Minnesota
- New Jersey
- New York
- North Carolina
- Pennsylvania
- Texas
- Virginia
- Wisconsin
Specific cities supported include Arlington, Boston, and Boulder, among others.
Grant Distribution by State
States
Cities
Financial History
Multi-year comparison from IRS filings
Assets:
- Total assets: $35.6–$36.8 million (as of most recent filings)
Annual Activity:
- Total giving: $1.8–$2.4 million annually
- Annual expenses: approximately $2.2 million
- Revenue: $592,195–$823,300 annually
- Giving rate: approximately 5.1% of assets
Most Recent Filing: December 2023 (with 2024 data also available)
| Metric | 2024 | 2023 | 2022 |
|---|---|---|---|
| Total Assets | — | — | — |
| Revenue | — | — | — |
| Expenses | — | — | — |
| Qualifying Distributions | — | — | — |
| Net Investment Income | — | — | — |
| Distributable Amount | — | — | — |
Giving Over Time
Total grant dollars and number of grants per year
Grant Insights
How this funder distributes its grants
Top Recipients
Top 10 recipients in 2024
Grant Size Distribution
213 grants across all recorded years
Giving History
Grant recipients and amounts by year
No grants recorded for .
Leadership & Key People
Leadership team and compensation from IRS filings
Key personnel include:
- Denise M. O'Leary – President
- Kent J. Thiry – Secretary
- Matthew Thiry – Vice President
- Christina Thiry – Treasurer
All leadership members serve on a voluntary basis without compensation.
Compensation Overview
From 2024 IRS filing
From 2024 filing
| Name | Title | Hours | Compensation |
|---|---|---|---|
| KENT J THIRY | SECRETARY | 5 | — |
| DENISE M O'LEARY | PRESIDENT | 0.25 | — |
| MATTHEW THIRY | VICE PRESIDENT | 0.25 | — |
| CHRISTINA THIRY | TREASURER | 0.25 | — |
Subject Areas
Focus areas based on grantmaking activity
Related Funders
Similar funders by location and focus area
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Grants
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Total Given
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Assets
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Total Given
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Terra Foundation Inc
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Assets
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Grants
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Total Given
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Prosperity Denver Fund
DENVER, CO
Assets
$46.8M
Grants
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Total Given
$18.6M
Fie Family Foundation
BOW MAR, CO
Assets
$1.0M
Grants
12
Total Given
$91K
Truthfc
BROOMFIELD, CO
Assets
$53K
Grants
5
Total Given
$4K
Data last updated April 2026. Sourced from IRS Form 990-PF filings. Research dossier generated April 2026.
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