You are here

Profile Photo of Kim Dietzel

Kim Dietzel


Kim is a Partner in the Competition, Regulation and Trade group.



Kim acts on the full range of EU and UK competition law issues, with a particular focus on litigation and cartel cases, as well as on merger control. Kim has been confirmed by Global Competition Review (GCR) as one of the "top 100 women in antitrust" covering regulators, economists and competition lawyers and is rated by both Chambers and Legal 500 for competition litigation in particular. Who's Who Legal: Competition describes her as 'a clever and strategic operator', who is praised for her cartels and litigation practice. She is a Solicitor Advocate and regularly appears as an advocate in the CAT. 

Kim advises a range of clients, including in the transport, aviation, financial services, consumer goods and industrial sectors. She regularly speaks at international conferences and has published extensively on competition issues, including with respect to leniency and follow on litigation.

Kim has advised:

  • Virgin Atlantic/Virgin Group on the acquisition of a 49% stake in Virgin Atlantic by Delta Air Lines and the creation of a joint venture between Virgin Atlantic and Delta, and on the on-going implementation of the joint venture between VAA and Delta which benefits from approvals in the UK, EU and US
  • Gerber on its joint venture with Refresco which involved a referral up from Member State review to the European Commission for EU Merger Regulation review and led to the divestment of a German plant in early 2014
  • Pilkington on its defence of follow-on damages claims arising out of the car glass and flat glass cartels, with several further claims (including indirect purchaser claims) having been raised in 2014, involving cases in the UK and in Germany, and related European court litigation
  • Schunk in the CAT in relation to a jurisdictional challenge in the follow-on cartel damages claim brought by Deutsche Bahn 
  • Wieland Werke in the High Court follow on cases arising out of the copper plumbing tubes cartel 

Kim's other clients include 3i, The Coca-Cola Company, OSI, British Standards Institution (BSI), easyJet, TUI, Weir, and various confidential clients whom she advises on merger issues, competition law compliance work and cartel/leniency applications across a number of jurisdictions.


Kim has Masters in both Law and Arts. She is a committee member of the Competition Law Association, the LawSociety Competition Section, the City of London Law Society committee on private actions, and the International Chamber of Commerce, working partly on private actions.

Key Sectors