Skip to content
1
Canada 2023
Nationwide - Canada Competition/Antitrust
1
Band 1

7 Ranked Lawyers

About

Provided by McCarthy Tétrault LLP

We are widely recognized as some of the best competition lawyers in Canada. With our unique ability to integrate exceptional expertise in both of Canada’s legal systems (civil and common law) and both of Canada’s official languages (English and French) to address any client issue, our group is entrusted to advise on some of Canada’s most significant and industry-changing competition matters.  

From our expertise in transactional matters and investigations, to litigating high-stakes competition matters, our outstanding reputation extends to the full spectrum of competition law services.

Clients turn to us to for our extensive experience in clearing complex mergers and, when necessary, our ability to litigate to get their deal through. Our clients also benefit from our robust in-house e-discovery services which means that responses to Competition Bureau information requests in merger review (or other types of competition investigations) are managed in a highly efficient and cost-effective manner.

We have acted as counsel on landmark competition cases and have been retained by the Commissioner of Competition in Tribunal proceedings. We have advised on almost all of the national and international cartel cases in Canada over the past 20 years. As well, we have a track record of success in defending competition class actions, as well as class actions in general, that is unsurpassed in Canada.

Chambers Review

Provided by Chambers
Competition/Antitrust - Nationwide - Canada
1
Band 1
What the team is known for

McCarthy Tétrault operates a dynamic and well-established competition law practice group, featuring considerable experience of investigations, transactions and disputes, as well as foreign investment. Clients appreciate the team's assistance and advocacy skill in dealings with the Competition Bureau. The law firm acts for clients on both criminal proceedings and civil matters, including cartel class actions, as well as compliance programmes. It represents a varied list of international and domestic clients, including household names in the transportation, telecommunications and entertainment sectors. The group has an impressive track record handling prominent, blue-chip cross-border merger files.

Work Highlights

Provided by McCarthy Tétrault LLP
  • McCarthy Tétrault acted as Canadian counsel to Aon on its now terminated proposed acquisition of Willis Towers Watson for an implied combined equity value of USD80 billion.

Notable Practitioners

Provided by Chambers
Donald B Houston
N
Donald B Houston
S
Senior Statespeople

Donald Houston is an eminently respected member of the Canadian competition Bar, with an impressive career that has seen him represent clients in both regulatory enforcement and litigation. He also has significant experience in merger and investment review files.

Jason Gudofsky
N
Jason Gudofsky
1
Band 1

Jason Gudofsky is frequently engaged to provide competition advice on a multitude of complex and high-profile cross-border transactions. He is based out of McCarthy Tétrault's Toronto office.
"Jason is great with clients and a good sounding board. He is very sharp and responsive." "He has a lot of authority and charisma which allows him to get things moving in the right direction."

Oliver J Borgers
N
Oliver J Borgers
2
Band 2

Oliver Borgers has cultivated a solid reputation in the Canadian competition market, with significant experience advising on all manner of transactional reviews, including acquisitions, joint ventures and strategic alliances.

Casey W Halladay
N
Casey W Halladay
3
Band 3

Casey Halladay is a respected competition lawyer with a skill set covering both merger review and regulatory enforcement. He continues to be engaged in a number of major cross-border transactions.
"Casey is incredibly technically strong and really understands global merger control."

Nikiforos Iatrou
N
Nikiforos Iatrou
2
Band 2

Nikiforos Iatrou is an experienced litigator and antitrust lawyer with significant experience advising on abuse of dominance and misleading advertising cases. He particularly impresses for his work in the technology and e-commerce sectors.

Deborah Salzberger
N
Deborah Salzberger
4
Band 4

Deborah Salzberger provides guidance to clients on the process of investment and merger review, including navigating the Investment Canada Act. Her recent work includes several impressive mandates in financial services and construction.
"Debbie is an invaluable resource when dealing with complex discussions within competition law. Her thoughtful consideration of issues assists in navigating what can be grey areas in terms of policy development and enforcement priorities."

Dominic Thérien
N
Dominic Thérien
5
Band 5

Montréal-based Dominic Thérien is a respected competition law expert with expertise in major merger review and foreign investment files.
"Dominic is an expert in the field and is able to help us solve the various problems that may arise in connection with competition law."

Ranked Lawyers at
McCarthy Tétrault LLP

Provided by Chambers
Filter by
Band

Nationwide - Canada

Competition/Antitrust

Jason Gudofsky
1
Jason Gudofsky
1
Band 1
Oliver J Borgers
2
Oliver J Borgers
2
Band 2
Casey W Halladay
3
Casey W Halladay
3
Band 3
Deborah Salzberger
4
Deborah Salzberger
4
Band 4
Dominic Thérien
5
Dominic Thérien
5
Band 5
Competition/Antitrust: Litigators

Donald B Houston
S
Donald B Houston
S
Senior Statespeople
Nikiforos Iatrou
2
Nikiforos Iatrou
2
Band 2