Marc McLaren-Caux

Partner / Ottawa

Marc McLaren-Caux is a Partner in the Canadian office of Cassidy Levy Kent.  Mr. McLaren-Caux’s litigation and advisory practice is focused on public procurement, trade remedies, and Federal regulatory law.  He has appeared as lead counsel at all levels of Canada’s superior and federal courts, the Canadian International Trade Tribunal, and the Canada Border Services Agency and other administrative decision-making bodies, representing both private and public sector clients in complex first instance and appeal proceedings.

Mr. McLaren-Caux leads Cassidy Levy Kent’s public procurement practice and has been involved in several of the highest value and most challenging procurement disputes and trade remedy proceedings in Canadian history. He is consistently recognized by his peers and clients for inclusion as a leading lawyer in the areas of both public procurement and international trade. Mr. McLaren-Caux strives to distill and communicate complex issues to clients and decision-makers alike. He has obtained successful outcomes for clients in a wide range of sectors.

Prior to starting his career with Cassidy Levy Kent, Mr. McLaren-Caux clerked in Canada’s Federal Court, where he gained significant experience in federal administrative law and judicial review processes. Before re-joining Cassidy Levy Kent in early 2017, he practiced for over two years in a specialized litigation firm in Toronto advising and appearing as lead counsel in numerous proceedings before administrative tribunals and Ontario’s Divisional Court.

Mr. McLaren-Caux holds a J.D. from the University of Ottawa, with a concentration in the International Law Program, having received several academic awards and prevailing as a winner of the world’s largest moot court competition, the Vis. He frequently returns to his alma mater to lecture on contract and public procurement law.


  • Chambers Canada – Public Procurement – Band 2
  • Chambers Global – International Trade/WTO – Band 4
  • Chambers Canada – International Trade/WTO – Band 4
  • Legal 500 – Public Procurement – Next Generation Partner
  • Who’s Who Legal – Global – Government Contracts – Recommended
  • Who’s Who Legal – Canada – Government Contracts – Recommended
  • Who’s Who Legal – Canada – Trade & Customs – Recommended
  • Best Lawyers – Public Procurement – Recognized
  • Best Lawyers – International Trade and Finance Law – Recognized
  • Canada Lexpert Directory – International Trade Regulation – Repeatedly Recommended


  • J.D., University of Ottawa
  • B.A., University of Western Ontario


  • English
  • French

Bar Memberships

  • Ontario