William J and Dorothy K O'neill
The William J. and Dorothy K. O'Neill Foundation is a private foundation established in 1987 in Cleveland, Ohio. The foundation was founded by Mrs. Dorothy O'Neill and her eldest son, William J. O'Neill, Jr., and is rooted in the shared values and beliefs of the O'Neill family. The foundation maximizes its resources and deploys them under well thought-out strategies developed in partnership with others in important areas of large beneficial impact.
Financial Overview
From 2024 IRS Form 990-PF · View filing
Total Assets
$103.6M
+5.7% YoY
Annual Giving
$5.3M
+0.6% YoY
Grant Count
185
-19.2% YoY
Avg Grant Size
$29K
+24.5% YoY
Mission & Focus Areas
Mission: To partner with nonprofits to improve the quality of life for families and communities in places where O'Neill family members live.
The foundation supports effective nonprofits who work in partnership with their communities towards a shared vision of health, safety, and empowerment.
Primary Funding Areas:
- Education
- Philanthropy, Voluntarism & Grantmaking
- Human Services
Grantmaking
The foundation operates through multiple grantmaking programs:
Ready to take the next step with William J and Dorothy K O'neill?
Geographic Focus
Where this funder awards grants
The foundation serves communities where O'Neill family members live and are engaged in the foundation's work. As of 2018, these include:
- Washington, DC
- Orlando, Florida
- Hawaii's Big Island
- New York City
- Annapolis/Anne Arundel County, Maryland
- Baltimore, Maryland
- Cleveland/Cuyahoga County, Ohio
- Houston, Texas
- Areas of Vermont
Primary funding regions also include Maryland, New York, and Virginia.
Grant Distribution by State
States
Cities
Financial History
Multi-year comparison from IRS filings
As of 2024:
- Total Assets: $103,646,759
- Total Revenue: $13,000,572
- Total Expenses: $7,759,002
- Net Income: $5,241,570
- Total Liabilities: $0
The foundation ranks in the top 1% of foundations by assets (#1,349 of 159,619 foundations nationally).
| Metric | 2024 | 2023 | 2022 |
|---|---|---|---|
| Total Assets | $103,646,759 | $98,038,049 | $98,552,010 |
| Revenue | $13,000,572 | $7,875,523 | $6,502,560 |
| Expenses | $7,759,002 | $8,374,412 | $8,786,152 |
| Qualifying Distributions | $6,488,130 | $6,260,529 | $7,776,891 |
| Net Investment Income | $11,925,723 | $6,870,894 | $4,404,529 |
| Distributable Amount | $7,013,726 | $6,230,735 | $6,547,850 |
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
250 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
Staff:
- Leslie Perkul, President and Chief Executive Officer ($230,000 annual compensation)
- Marci Lu, Senior Program Officer ($150,000 annual compensation)
- Marlene Corrado, Program Officer ($130,000 annual compensation)
- Kara McCullough, Grants Manager ($113,117 annual compensation)
Board Members:
- Robert Donahey, Chair
- Laura O'Neill Bower, Secretary
- David Donahey, Treasurer
- Timothy O'Neill, Trustee
- Brian Sweeney, Trustee
- Mary Walker, Trustee
The foundation has 4 employees and is staffed with dedicated personnel.
Compensation Overview
From 2024 IRS filing
From 2024 filing
| Name | Title | Hours | Compensation |
|---|---|---|---|
| LESLIE PERKUL | PRESIDENT/CEO | 40 | $230,000 |
| LAURA O'NEILL BOWER | SECRETARY | 1 | — |
| DAVID DONAHEY | TREASURER | 1 | — |
| TIMOTHY O'NEILL | TRUSTEE | 1 | — |
| BRIAN SWEENEY | TRUSTEE | 1 | — |
| ROBERT DONAHEY | CHAIR | 1 | — |
| MARY WALKER | TRUSTEE | 1 | — |
Contact Information
- Address: 7575 Northcliff Ave., Suite 205, Cleveland, Ohio 44144
- Phone: 216-831-4134
- Email: lperkul@oneill-foundation.org
- Website: www.oneill-foundation.org
Related Funders
Similar funders by location and focus area
Galpin-white Ta
BROOKLYN, OH
Assets
$16K
Grants
1
Total Given
$887
Mary E H Rutter Tr Para 28
BROOKLYN, OH
Assets
$401K
Grants
1
Total Given
$26K
Carrie Peska Memorial Scholarship Fund
ANDOVER, OH
Assets
$19K
Grants
1
Total Given
$4K
The Penguin Club Inc
YOUNGSTOWN, OH
Assets
$4.1M
Grants
1
Total Given
$245K
Amvets Post 711
BOWLING GREEN, OH
Assets
$220K
Grants
3
Total Given
$41K
Hawthorne David T and Gene J Educational
YOUNGSTOWN, OH
Assets
—
Grants
1
Total Given
$47K
Data last updated April 2026. Sourced from IRS Form 990-PF filings. Research dossier generated April 2026.
What could you do with William J and Dorothy K O'neill on Grantable?
- Assess strategic fit with your organization
- Draft a tailored letter of inquiry
- Find open RFPs from this funder
- Monitor for new funding opportunities