Guy Pinsonnault
Canada Guide 2025
Band 2 : White-Collar Crime & Government Investigations
Email address
[email protected]Contact number
613.691.6125Share profile
Band 2
About
Provided by Guy Pinsonnault
Practice Areas
Guy Pinsonnault is a partner in the firm's Competition Group where he practises in Montréal and Ottawa. His practice includes the full range of competition, anti-corruption, foreign corrupt practices, white collar crime, proceeds of crime, and Canadian business regulation, litigation and advisory work, with a particular focus on Canadian and international cartel and commercial crime matters. Prior to joining McMillan, Guy was the General Counsel, Competition Law Section, Public Prosecution Service of Canada, from 2004 to 2012. His work as the senior prosecutor at the Competition Bureau focused mainly on the prosecution of criminal cartel matters, as well as bid-rigging and fraudulent misrepresentation. He also provided extensive advice in the development of the Competition Bureau policies and programs (e.g., the Immunity and Leniency Programs) and advised on Bureau policies and practices for search and seizure, immunity and plea agreements. Guy has had extensive criminal law experience dealing with local, national and cross-border RCMP and UPAC corporate crime investigations and prosecutions.
Chambers Review
Canada
Guy Pinsonnault is a former prosecutor who is particularly well regarded for his insight and experience in a range of regulatory investigations, including anti-money laundering, terrorist financing and antitrust. He is based in McMillan's Ottawa office.
Strengths
Provided by Chambers
"Guy is excellent."
"Outstanding lawyer with great government experience."
"Guy is a solid practitioner and a very good lawyer."
"Mr Pinsonnault is always very professional and very quick in his response time. He is also aware of the commercial and reputational issues."
"Guy is excellent."
"Outstanding lawyer with great government experience."
"Guy is a solid practitioner and a very good lawyer."
"Mr Pinsonnault is always very professional and very quick in his response time. He is also aware of the commercial and reputational issues."