Oliver Borgers > McCarthy Tétrault > Toronto, Canada > Lawyer Profile

McCarthy Tétrault
66 Wellington Street West
Suite 5300, TD Bank Tower Box 48
Toronto ON M5K 1E6

Work Department



Practice focuses on all aspects of antitrust law, foreign investment and national security review. Emphasis on application of these laws to mergers, acquisitions, notifications and market conduct. Regularly provides merger advice to major global companies. Has obtained competition and foreign investment clearances for Canada’s largest transactions, among many others.


Partner, McCarthy Tétrault, (Toronto); Former managing partner of UK offices of McCarthy Tétrault; Teaches competition law at Western University (London); Ontario Bar; England and Wales Bar; BA (Hon.); LLB; LLM.


Former Chair of National Competition Law Section (Canadian Bar Association); Founder, Foreign Investment Review Committee; Former Chair, Mergers Committee (CBA); Founder, Canadian-German Lawyers’ Association; Member of Studienvereinigung Kartellrecht (German Antitrust Law Association); ABA; IBA.


Speaks English, French, German, Spanish.

Lawyer Rankings

Canada > Competition and antitrust

(Leading individuals)

Oliver BorgersMcCarthy Tétrault

The ‘diverse group‘ at McCarthy Tétrault advises on the full range of antitrust issues, including merger control, criminal and civil investigations, litigation and class actions, misleading advertising and deceptive practices. The team represents clients across all key industry sectors but is particularly specialised in the airlines, pharmaceuticals, health, IT and TMT sectors. Foreign investment review and national security continue to be key sources of work in the department, with recent work including investments by state-owned enterprises, cultural reviews and national security investigations. Senior partner Oliver Borgers and practice head Jason Gudofsky are both names to note in this area. The group has grown with the arrival of Casey Halladay from McMillan LLP, a move that strengthens the firm’s cartel work, as well as other contentious matters including abuse of dominance. Litigator Donald Houston is retained on cartel investigations and prosecutions, civil cases and private actions.