David Sevy

Executive Vice President

Paris | Brussels

David Sevy is an Executive Vice President at Compass Lexecon and heads up the Paris office.

David has over 20 years of experience advising clients in high-profile competition and litigation matters and has worked as expert in over hundred and fifty cases in a broad variety of sectors (including consumer goods, digital, retailing, media, transportation, automotive, aeronautics, healthcare, telecommunications, energy, and financial services).

David has advised clients in many complex mergers, including a number of Phase II proceedings before the European Commission and national competition authorities (France, Belgium, UK, Switzerland, Malta, Romania). Recent merger experience involves EC Phase II cases Orange/Voo/Brutélé, Fiat Chrysler/Peugeot, Siemens/Alstom, Thales/Gemalto, Wabtec/Faiveley, Liberty Global/Base, as well as Phase I cases Orange/TKR and Safran/Zodiac; it also involves Phase II cases TF1/M6, Ardian/SPMR, Cofigeo/William Saurin and FNAC/Darty before the French NCA.

David has advised clients in antitrust cases before the European Commission (Art. 101 cases re: Natural gas, Power Cables, Euribor, CDS, SSA Bonds and Art. 102 in industrial products, telecommunications, financial services) and before national authorities. David has also acted as economic and testifying expert in large commercial litigations (before French and German commercial courts in particular) and international arbitration cases (under ICC, ICSID and LCIA), as well as in WTO cases.

David is featured in the Who’s Who of Competition Economists Thought leaders and in the Who’s Who of Arbitration Expert Witnesses.

He is Non-Governmental Advisor for the French competition authority in the International Competition Network.

David graduated from Ecole Polytechnique (1986) and received his Ph.D. in Economics from Ecole Polytechnique (1993). After a post-doc at AT&T Bell Laboratories (1994), David worked for France Télécom (1994–1999) as senior regulatory economist. He then joined McKinsey & Company in Paris, from 1999–2002.

David´s academic research focused mainly on theoretical and applied industrial economics. He is adjunct professor of economics at Ecole Polytechnique, teaching antitrust economics. David is co-author of the textbook Economie de l’entreprise, aux Editions de l’Ecole Polytechnique and is a frequent speaker in competition policy conferences


  1. Education icon


    • PhD in Economics, Ecole Polytechnique
    • BA in Engineering, Ecole Polytechnique

David’s cases

David’s insights

A new version of Compass Lexecon is available.