David F. Denison
David F. Denison is a Canadian businessperson and the chair of Hydro One and Hydro One Inc. He is the former president and chief executive officer of the Canada Pension Plan Investment Board. Biography. Denison earned a bachelor's degree in both mathematics and education from the University of Toronto. He is a Chartered Professional Accountant and a Fellow of the Institute of Chartered Accountants of Ontario. Denison was the Chair of the Canadian Coalition for Good Governance from June 4, 2009, to June 15, 2011, and a corporate director of since June 23, 2005. He has  had an extensive career in financial services within Canada, the United States and Europe, with firms including Fidelity Investments (founded as Fidelity Management and Research Company), Merrill Lynch, S. G. Warburg, Midland Walwyn (bought by Merrill Lynch 2013), and Mercer. He is the current a director of the United Way of Canada. In 2014, he was named an Officer of the Order of Canada.