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Sian Jacob


Personal Profile

Sian is an Associate in the Competition Group in the Innovation Department.

She has strong experience of competition litigation and high value commercial disputes and has experience of the UK collective action regime having worked on a number of follow-on competition collective actions in the Competition Appeal Tribunal.

Prior to joining Mishcon de Reya LLP, Sian worked on one of the first consumer collective action proceedings applications made in the Competition Appeal Tribunal, and more recently acted for the class representative in a collective action against Apple relating to iPhone batteries.

Key Experience

  • Acting for and advising the class representative in making a collective proceedings application in a £768 million opt-out claim against Apple in the Competition Appeal Tribunal.
  • Advising the class representative in one of the first collective action claims in the Boundary Fares claims, at first instance in the Competition Appeal Tribunal, and on appeal to the Court of Appeal.
  • Acting for the claimants in the group action litigation on the emissions scandal against large car manufacturers in the High Court.

Career History

Associate, Mishcon de Reya LLP
Associate, Charles Lyndon
Trainee Solicitor, BLM LLP  
BPP University, Legal Practice Course
Bournemouth University, LLB (Hons) Law

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