Skip to main content

Profile hero

Profile details

About Bertrand Guerin

Bertrand is a French- and German-qualified competition lawyer.

He advises companies in merger control, cartel and abuse-of-dominance proceedings under European, German and French competition laws.

Bertrand has significant experience in worldwide merger control, and also advises on dominance-related issues, distribution strategies as well as cartel cases, including leniency applications. He has particular experience in the media, new media, e-commerce, retail and pharmaceutical sectors.

Recent clients include CME (Time Warner), Boehringer Ingelheim, Cinven, Advent and Zalando.

Bertrand has been recognised as a 'Future Leader' by clients and peers every year since the very first 2017 edition of 'Who's Who Legal - Competition: Future Leaders' (Who's Who Legal/Global Competition Review).

He is both a qualified lawyer and a business school graduate.

Bertrand speaks French, English and German.

Recent work

  • Advising various eastern and central European TV channels of CME (PPF-owned; formerly Time Warner-owned) on general commercial issues.
  • Advising a global technology company in its defence relating to an ongoing probe currently conducted by a leading European competition authority in the advertising and advertising technology sector.
  • Advising Advent on its €1.9bn acquisition of Zentiva, the previous European generics business of Sanofi, and Zentiva’s subsequent acquisition of the entire CEE business of Alvogen.
  • Advising Zalando on various e-commerce, distribution and platform topics.
  • Advising Cinven and its portfolio company Viridium group on its acquisition of the German life insurance activities of Generali Lebensversicherung (4 million policies).
  • Advising Boehringer Ingelheim on its €22.8bn swap deal with Sanofi relating to the companies' respective consumer healthcare and animal health businesses.
  • Advising Cinven/Host Europe Group on numerous acquisitions in the Internet hosting sector as well as the €1.69bn sale of Host Europe Group to GoDaddy.
  • Advising Daimler on its acquisition of Tognum by Engine Holding, a joint venture of Daimler and Rolls-Royce, by way of a public tender offer.
  • Advising other clients including Axel Springer, ABB, Aryzta, Mars and LVMH/Groupe Arnault.



  • University Paris II Panthéon-Assas, France (Master II degree in European business law)
  • Universities of Paris I and Paris XIII, France (law)
  • EM Lyon Business School, France (Master of Science in Management/Diplôme Grande Ecole in business administration)

Professional qualifications

  • French-qualified lawyer (avocat à la cour, Paris chamber)
  • German-qualified lawyer (Rechtsanwalt, Berlin chamber)

Professional memberships

  • Member of Studienvereinigung Kartellrecht, an association of German-speaking competition lawyers


  • Global Competition Review in association with Freshfields Bruckhaus Deringer (co-author with Dr. Helmut Bergmann and Dr. Frank Röhling) German chapters in Getting The Deal Through: Merger Control and Getting The Deal Through: Market Intelligence

  • Journal of European Competition Law & Practice, Oxford Journals, first published online November 19, 2015 (• Bertrand Guérin and Anna Wolf-Posch) Special Report of the German Monopolies Commission: Can Competition Law Address Challenges Raised by Digital Markets?

  • Concurrences n° 4-2011, pp. 216-231 (• Dr Frank Röhling, Bertrand Guérin) Allemagne: Le Bundeskartellamt intensifie de façon spectaculaire la lutte contre les pratiques de prix de revente imposés

  • Concurrences, n°4-2011, pp. 216-231, (Dr Frank Röhling, Bertrand Guérin) Germany: The Bundeskartellamt intensifies the fight against resale price maintenance practices

  • Concurrences, N° 4-2008, n°22103, pp. 174-181, (Dr Frank Röhling, Bertrand Guerin) Germany: Recent developments in merger control