Christopher DiMatteo
Associate | Toronto
Toronto: 416-863-3342

Christopher's practice includes complex commercial litigation and class action defence, with a focus on cybersecurity. He also practices public law, with expertise in administrative, constitutional and regulatory law. His experience includes a wide range of business disputes, contract cases, media and defamation cases, insurance law, and procurement matters. He has appeared before the Ontario Superior Court of Justice, the Divisional Court, the Court of Appeal for Ontario and the Supreme Court of Canada.

Before joining Blakes, Christopher was a law clerk for the Honourable Justice (now Chief Justice) Richard Wagner of the Supreme Court of Canada and for judges of the Court of Appeal for Ontario.


Recent matters in which Christopher has been involved include:

  • Counsel to a gaming facility and public-sector entity in a privacy class action arising out of a cyberattack, successfully opposing the plaintiffs’ motion for certification

  • Counsel to a public-sector procuring entity in a judicial review application challenging its debarment of a contractor, successfully opposing the application (named one of Lexpert's Top 10 Business Decisions of 2018)

  • A contractor in a dispute involving claims for delay and disruption arising from the construction of a high voltage transmission line

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Blakes Bulletin on Litigation & Dispute Resolution, May 28, 2019.
Blakes Bulletin on Litigation & Dispute Resolution, March 18, 2019.
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