Brian graduated from Trinity College School in 1978, and Trinity College, University of Toronto (Bachelor of Arts) in 1983, followed by the Canadian Institute of Chartered Accountants in 1985.

In 1983 Brian joined the audit practice of Touche Ross & Co. (now Deloitte). In 1988, he moved to Brookfield Asset Management Inc. where he is currently a vice-chair.

Brian served as a member of the TCS Board of Governors from 1998 to 2003. He is a member of the TCS Foundation board and serves on the Foundation finance committee. Brian also served as chair of the TCS Foundation from 2014 to 2018. He is currently a member of the Governing Council of the University of Toronto and a director of Community Food Centres Canada.

Brian and his wife, Joannah, live in Toronto and have three children, Tristan, Alexander and Gillian.