Lionel Lesur

McDermott Will & Emery (Paris)
Lawyer (Partner)

Lionel Lesur is a partner in the law firm of McDermott Will & Emery and is based in the Firm’s Paris office. He focuses his practice on corporate law and competition law. Lionel advises domestic and international companies in a broad range of industries. His experience focuses on negotiations of private mergers and acquisitions, leverage buy-outs and commercial contracts. Lionel also has experience with both European and French competition law, in particular, merger control proceedings and antitrust proceedings. Lionel is admitted to practice in Paris and Rome. He commenced his career in Paris before moving to Rome where he practiced for one year with a leading Italian firm before returning to Paris. Lionel has co-authored several articles on European and French antitrust law including in the Concurrences review. Lionel is also the French correspondent of the Italian Observatory for Competition (Osservatorio Permanente sull’Applicazione delle Regole di Concorrenza) and trained twice in Vietnam for the benefit of the members of the newly created national competition authority. Lionel was also the contributor for France to The EC Competition Law Handbook from 2007 to 2011 (Jones; Van der Woude). Lionel has been a visiting professor of comparative law at HEC since 2011.

Linked authors

Herbert Smith Freehills (Paris)
Jones Day (Brussels)
Siemens (Brussels)
ENSAE Paris-Tech
Analysis Group (Paris)
McDermott Will & Emery (Paris)
McDermott Will & Emery (Paris)
ESSEC Business School (Cergy)


5717 Bulletin

Lionel Lesur, Louise-Astrid Aberg, Philipp Werner The French Civil Supreme Court rules on automotive quantitative selective distribution agreements (Auto 24 SARL, Jaguar Land Rover)


The Cour de cassation, France’s highest court for judicial matters, rendered a judgment on 15 January 2013 in a case involving Jaguar’s distribution agreements in France. The judgment follows an earlier ruling on the matter by the Court of Justice of the European Union (CJEU), from which the Cour (...)

Lionel Lesur, Louise-Astrid Aberg, Philipp Werner The European Court of Justice rules that the EU Commission can bring follow-on actions for damages on behalf of the EU in cartel cases (Otis)


EU Commission Can Bring Follow-On Actions for Damages on Behalf of the European Union in Cartel Cases* On 6 November 2012, the Court of Justice of the European Union (CJEU) ruled that the European Commission was entitled to represent the European Union in an action for damages before national (...)

Lionel Lesur, Sergio Sorinas The French Supreme Court rules that the damage caused to the economy by an anticompetitive practice cannot be presumed (Bouygues Télécoms, SFR, Orange)


Background This case is the latest episode of the saga of the «mobile telephony case«. In 2005 the French Competition Council imposed on the three leading French mobile operators (Orange France, SFR and Bouygues Télécom) a record fine of € 534 M for collusive practices consisting in (i) exchange of (...)

Lionel Lesur, Sergio Sorinas The Paris Court of Appeal annuls a decision by the French Competition Council fining 7 physicians’ unions for colluding to increase their fees (Union nationale des médecins spécialistes confédéés a. o. vs Association Familles rurales)


In a ruling of 18 March 2009, the Paris Court of Appeal (the "Court") annulled a decision by the French Competition Council (the "Decision" and the "Council") to fine 7 physicians’ unions for an agreement among their members to increase fees charged to patients. These practices ran for varying (...)

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