Claire was educated at Cambridge and Brussels universities and works in Slaughter and May’s Brussels and London offices.

She has been involved in a large number of high-profile merger cases before the UK and EU competition authorities, as well as coordinating merger approvals worldwide.

On the contentious side, she has been involved in many cartel and other behavioural cases, including on appeal to the General Court in Luxembourg.

Highlights include advising:

  • Vodafone on its acquisition of parts of Liberty Global;
  • Shire on its takeover by Takeda; and
  • Google in relation to the European Commission’s antitrust investigation into allegations that certain of its business practices in the search and advertising sectors violate European competition rules.

She has been named in W@Competition’s list of ‘40 in their 40s Notable Women Competition Professionals’ and The Lawyer’s Hot 100 list. Claire was awarded ‘Dealmaker of the Year’ by Global Competition Review in 2017, and shortlisted in the ‘Lawyer of the Year’ category in the 2019 Global Competition Review awards.

She is listed as a ‘Leading Individual’ by Chambers and The Legal 500, and recognised as a ‘Thought Leader’ in Who’s Who Legal: Competition.

Claire is fluent in French and Russian and has good German.

Recent publications include:

  • Introduction – Why E-commerce. An extract from the second edition of GCR’s E-Commerce Competition Enforcement Guide, first published in January 2019. The whole publication is available here.

List of all our partners