Mr Gleeson, BA, MSc (Mgmt), was Secretary to Trinity College Dublin, 1990-2008, and Director of Strategic Initiatives there from 2008-2011. He has a wide range of experience in corporate governance, strategic planning, risk management and mediation.

He is Chair of the Trustee Board of the Marino Institute of Education and the Royal Dublin Society Foundation Board. He is a member of the Board of the Glasnevin Trust, a School Governor Fellow, and a Pensions Trustee.