May 28, 2020

Oliver Geiss

Oliver Geiss focuses his practice on competition law in the European Union and Germany.

He has represented companies in some of the largest EU cartel investigations both before the EU Commission and the European Courts, including the Air Freight, LCD Screen, Optical Disk Drives and Refrigeration Compressors, as well as in civil damage actions before national Courts. Oliver is at the forefront of developments and regularly publishes in this area.

Oliver also regularly advises clients on merger notifications of cross-border transactions with the European Commission, the German Federal Cartel Office and other competition authorities throughout Europe. Oliver has extensive experience in a variety of industry sectors including chemicals, energy, fast-moving consumer goods, pharmaceuticals and telecommunications. He frequently represents clients before the European Courts in Luxembourg and also advises clients on EU state aid law and competition law aspects of commercial agreements such as distribution agreements or joint buying or selling arrangements.


  • Representing clients in five major cartel investigations before the European Commission, including two of the five largest cartels.
  • Representing clients in cartel investigations before the German authority and coordinating the defense across multiple jurisdictions.
  • Defending clients in civil cartel damage litigation, including the largest cartel damage case ever brought before German Courts
  • Securing EC merger approval of a US$3.2 billion merger between two major chemical companies and securing multicountry approvals of mergers in the pharmaceuticals, market research and medical devices sectors.
  • Representing a major US-based petrochemical corporation and a beverage manufacturer from the new EU Member States in State aid proceedings before the European Commission and European Court of Justice.

Articles in the National Law Review database by Oliver Geiss



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