Mr. Plessis-Bélair has been Vice-Chairman of Power Corporation since 2008. He was Vice-Chairman of Power Financial from 2012 until 2020. Previously, he was Vice-Chairman and Chief Financial Officer of Power Corporation and Executive Vice-President and Chief Financial Officer of Power Financial.

He is a director of Power Sustainable. He was a director of Lallemand Inc. until June 2017, of Pargesa until May 2017, of Groupe Bruxelles Lambert until April 2017, and of Great-West Lifeco, Canada Life and Empower until 2016.

Mr. Plessis-Bélair was a Fellow of the Quebec Order of Chartered Professional Accountants until March 2019. He holds a degree in Business and Accounting and a Master of Business from HEC, an MBA from Columbia University, and a Bachelor of Arts from Université de Montréal.