Department profile
McCarthy Tétrault LLP

Competition/Antitrust

Global Guide 2026 : Canada


McCarthy Tétrault LLP

Rankings

About

Provided by McCarthy Tétrault LLP

With our 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 national Competition/Antitrust and Foreign Investment Group is entrusted to advise on some of Canada’s most significant and industry-changing competition and foreign investment matters.

Our group is known for both our transactional expertise and our expertise in criminal and civil investigations and competition litigation.

Our team, which includes some of Canada’s best practitioners in the field (two of whom have chaired the Canadian Bar Association’s National Competition Law Section, represents clients on the full range of competition and foreign investment issues, including:

  • criminal and non-criminal provisions in Canada’s Competition Act
  • criminal investigations and proceedings in a number of industries
  • immunity and leniency applications in international and domestic cartels
  • private and public M&A transactions (including large and complex domestic and international transactions); structuring transactions
  • civil proceedings before the courts and the Competition Tribunal (Canada’s adjudicative body that oversees much of the enforcement of Canada’s Competition Act)
  • civil damage claims (class actions)
  • compliance matters and programs
  • Investment Canada Act: foreign investment and national security

Chambers Review

Provided by Chambers

Competition/Antitrust - Canada

Band 1

Band 1


What the Team is Known For

McCarthy Tétrault operates a dynamic and well-established competition law practice group with considerable experience in investigations, transactions and disputes, as well as foreign investment mandates. The group has an impressive track record of handling prominent, blue-chip, cross-border merger clearance filings. On the contentious side, team members offer notable experience defending clients accused of abuse of dominance or misleading advertising in class actions. The firm has a broad presence with offices in both Toronto and Montréal.

Work Highlights

Provided by Chambers

  • McCarthy Tétrault acted as Canadian competition counsel for Hewlett Packard Enterprises in relation to the all-cash acquisition of Juniper, for an equity value of USD14 billion.

Strengths

Provided by Chambers

  • The firm has a deep bench of highly qualified individuals who are easy to work with and generate great confidence with clients.

    Competition/Antitrust respondentGlobal
  • McCarthy Tétrault is plugged in globally.

    Competition/Antitrust respondentGlobal
  • The team strikes the perfect mix of high-quality technical advice that is also practical and tailored for a client's risk tolerance.

    Competition/Antitrust respondentGlobal
  • McCarthy's team is incredibly skilled in strategy and knows how to get tough deals done.

    Competition/Antitrust respondentGlobal

Notable Practitioners

Provided by Chambers

  • Senior StatespeopleOliver J Borgers
    Senior StatespeopleOliver J Borgers

    Oliver J Borgers

    Oliver Borgers has cultivated a solid reputation in the Canadian competition market, with significant experience assisting clients with obtaining competition law clearance for transactions.

  • Band 1Jason Gudofsky
    Band 1Jason Gudofsky

    Jason Gudofsky

    Jason Gudofsky is highly regarded for his impressive experience advising clients on the merger clearance aspects of high-value, multi-jurisdictional corporate transactions. He also offers expertise in matters concerning foreign direct investment.

    • Jason is very familiar with the Canadian regulatory landscape and processes, including relevant regulators and political departments.

      Competition/Antitrust respondentGlobal
    • He is very experienced and highly responsive.

      Competition/Antitrust respondentGlobal
    • He is a go-to lead for significant and complex matters.

      Competition/Antitrust respondentGlobal
  • Band 2Deborah Salzberger
    Band 2Deborah Salzberger

    Deborah Salzberger

    Deborah Salzberger advises clients on the competition and foreign direct investment aspects of high-value corporate transactions. She is also highly capable of assisting clients on misleading advertising and/or pricing and distribution matters.

    • She is very responsive and engaged.

      Competition/Antitrust respondentGlobal
    • Deborah is always practical in her advice.

      Competition/Antitrust respondentGlobal
    • Debbie has taken the time to understand our business and tailor her advice to meet our needs and expectations.

      Competition/Antitrust respondentGlobal
  • Band 2Nikiforos Iatrou
    Band 2Nikiforos Iatrou

    Nikiforos Iatrou

    Nikiforos Iatrou frequently represents high-profile e-commerce clients in competition law class actions, with a notable focus on allegations of price fixing or misleading advertising.

    • He is able to understand our issues and provides both legal and strategic advice in a comprehensive and succinct manner.

      Competition/Antitrust respondentGlobal
    • He is pragmatic.

      Competition/Antitrust respondentGlobal
    • Nikiforos is highly strategic.

      Competition/Antitrust respondentGlobal
  • Band 3Casey W Halladay
    Band 3Casey W Halladay

    Casey W Halladay

    Casey Halladay represents clients before the Competition Bureau in the review of high-value acquisitions, as well as in investigations into possible abuses of dominance and price-fixing.

    • Casey is responsive, thorough and exceeds client expectations regarding the advice he is able to provide on Canadian competition law matters.

      Competition/Antitrust respondentGlobal
    • He is the complete package.

      Competition/Antitrust respondentGlobal
    • He is highly knowledgeable about many areas of the law and is well-connected to the community.

      Competition/Antitrust respondentGlobal
  • Band 4Dominic Thérien
    Band 4Dominic Thérien

    Dominic Thérien

    Montréal-based Dominic Thérien is a respected competition law expert with expertise in merger reviews, misleading advertising and bid rigging investigations.

    • He has an impressive ability to anticipate potential regulatory challenges and proactively craft solutions that align with both legal requirements and commercial goals.

      Competition/Antitrust respondentGlobal
    • He is able to take very technical legal substance and apply it to the current context.

      Competition/Antitrust respondentGlobal

Ranked Individuals at McCarthy Tétrault LLP (7)

Canada

Members

Provided by McCarthy Tétrault LLP

McCarthy Tétrault LLP has rankings in the following guides

What success is built on

Chambers is the leading data and intelligence partner for the legal sector.

Explore thought leadership