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Dr Michael Dietrich

Dr Michael Dietrich


Michael is a competition expert specialising in German and EU cartel and dominance cases.



Michael is dedicated to delivering the best results for his clients.  With an eye for detail, he delivers pragmatic and clear advice to help clients achieve their strategic objectives.  Michael has successfully developed defence strategies in a number of cartel and dominance cases and has represented clients in several follow-on damages cases.  

Michael advises clients in a wide range of sectors, with substantial experience in the consumer goods, automotive, IT, public banking and building (materials) industries.

Michael represents clients in a number of complex cartel investigations, advising on leniency strategy, carrying out internal audits, and coordinating parallel proceedings.  He also has extensive contentious experience taking a cartel case through to appeal to damages action.

Michael also advises on non-cartel antitrust investigations, representing clients in cases involving alleged abuse of dominance.  He has particular experience advising in relation to digital markets (platform markets), but also in classical industries like agriculture, infrastructure, media and consumer goods.  Michael has been involved in cases regarding termination of supply, tailoring of rebate schemes, access to services or markets, predatory pricing and abuse of purchasing power.

Michael also delivers compliance trainings and online e-learning programmes to help clients meet their commercial objectives, limit regulatory risk and achieve compliance with their competition law obligations.

Michael's experience includes advising:

  • intended merger of back-office service providers for (savings) banks.  The review process took almost one year due to an intense legal battle with the Federal Cartel Office.  Ultimately, the parties decided to withdraw the notification to avoid a prohibition decision (or a continuation of the battle in court). 
  • a leading German retailer in the largest and most complex cartel investigation by the Federal Cartel Office into alleged price fixing between branded goods manufacturers and supermarkets in Germany, Austria and Lithuania. The case touched on a number of important novel procedural and substantive questions.
  • a leading German supermarket chain as an interested third party in an investigation launched by the Federal Cartel office against another leading supermarket chain for suspected abuse of purchasing power in the German food retail sector (now under appeal).
  • a leading German specialty brewery on its appeal against the Federal Cartel Office's decision imposing fines for the alleged participation in a price-fixing conspiracy.
  • a sovereign State Fund on EU merger control and parallel notifications in various other countries in the context of the acquisition of a German provider of commercial leasing for rolling stock for railway services.  Due to the size of the parties, a merger control of almost 200 jurisdictions worldwide was carried out. ​


Michael is a recommended competition lawyer in JUVE, Chambers and Legal 500, and is listed listed among 40 most renowned antitrust lawyers in Germany by business magazine Wirtschaftswoche. He is a member of the Studienvereinigung Kartellrecht and the American Bar Association, is a Non-Governmental Advisor to the International Competition Network, and is on the board of trustees of the research institute for economy and competition.