Board of Directors

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Sean McMaster

Mr. McMaster has been a member of the Board of Directors of ClearStream since September 2014. He was appointed as the independent Chairman (non-executive) of the Board of Directors of Clearstream in January 2019. 

Mr. McMaster was Executive Vice President Stakeholder Relations and General Counsel at TransCanada Corporation until February 2014, with overall responsibility for the management of TransCanada’s legal and regulatory affairs, stakeholder relations, internal audit, external communications, compliance and corporate security. From 2003 until 2006, he was President of TransCanada Power, L.P., a publicly held limited partnership that holds infrastructure assets throughout North America. He was a director of Bruce Power, the entity that operates North America’s largest nuclear facility.

Prior to his time in the energy industry, Mr. McMaster was an armoured officer in the Canadian Army, serving with Lord Strathcona’s Horse (Royal Canadians) in Calgary. He is a member of the Canadian Bar Association and the Law Society of Alberta and was appointed Queen’s Counsel as of December 31, 2009.

Mr. McMaster graduated from the University of Windsor in 1981 with a Bachelor of Arts (Honours) in Economics and Political Science. He received his Bachelor of Laws from the University of Alberta in 1989 and his Masters of Law from York University in 2006. Mr. McMaster obtained the Charter Director (C. Dir.) designation from the Directors College (a joint venture of McMaster University and the Conference Board of Canada) in 2010.