Impacting Families in Our Communities

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    Enterprise Community Partners - New York, NY

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    Enterprise Community Partners - New York, NY

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    LAND studio - Cleveland, OH

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    St. Malachi Center - Cleveland, OH

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    Northwest Assistance Ministries - Houston, TX

The William J. and Dorothy K. O’Neill Foundation

The William J. and Dorothy K. O’Neill Foundation is a private family foundation based in Cleveland, Ohio.  Founded in 1987 by Dorothy O’Neill and her son William J. O’Neill, Jr., the Foundation brings the O’Neill family together in service to their hometowns through their philanthropy.

The focus of our work is on the family, and four generations of the O’Neill family work in collaboration and partnership with organizations that share our desire to improve the quality of lives for families and communities. 

Message from Leah Gary

As of June 29, 2016, I retired from my role as President and CEO of the William J. and Dorothy K. O'Neill Foundation. It has been an immense honor to have served the nonprofit communities in Cleveland, Columbus, NYC, Washington DC, Baltimore, Annapolis, Orlando, Naples, Austin, Houston and the Big Island of Hawaii. The people at the organizations I worked with are our cities' true heroes. They dedicate all their energy and passion to those they serve and because of their singleness of purpose - to make life better for those in need - they lift us all. I am deeply thankful for the opportunity to have helped them do their important work. I salute you all and stand in awe of your accomplishments.

Love and best wishes, Leah Gary


O'Neill Foundation Names New President & CEO

After conducting a nationwide search, the Board of Trustees of the William J. and Dorothy K. O’Neill Foundation has selected Leslie K. Perkul as President & CEO. She will succeed Leah S. Gary who is retiring this summer after almost ten years of leadership at the Foundation. Click here to read the full release.

Important Dates

08.22.2016
Responsive Grantmaking 2016 Cycle 2 Letter of Inquiry Deadline