Portrait of Stéphane Dewulf

Stéphane Dewulf : Principal

Stéphane joined Oxera as a Principal in September 2020. He has expertise in competition law, with experience both as a consultant and as an enforcer. He was previously a case handler at the European Commission’s Directorate-General for Competition, where he worked for six years. Stéphane’s work for the Commission was shared equally between merger control and antitrust investigations, and he had a particular focus on the following sectors: energy IT, the Internet, media and telecommunications.

Before joining the Commission, Stéphane worked as an economist for eight years in two leading economics consultancies in the field of competition policy. He provided economic advice to companies in relation to mergers, horizontal and vertical agreements, and abuse of dominance—mostly in the context of investigations by the Commission and other competition authorities in Europe, but also in the context of private litigation. Stéphane’s experience in the private sector covers a wide range of sectors including the Internet, media, pharmaceuticals, telecommunications, consumer electronics, air transport, basic industries, manufacturing, FMCG, and banking.

Stéphane speaks English, and French.

Tel: +32 (0) 2 793 07 13

Stéphane's specialisms include:

professional experience

  • While working at the European Commission, investigated several high-profile merger cases, including: Nvidia/Mellanox (Phase I); Telia Company/Bonnier Broadcasting (Phase II with conditions); IBM/Red Hat (Phase I); Microsoft/GitHub (Phase I); Sony/EMI (Phase I); Bayer/Monsanto (Phase II with conditions); Siemens/Dresser Rand (Phase II); Statoil Fuel and Retail/Dansk Fuels (Phase I with conditions); BP/Statoil Fuel and Retail Aviation (Phase I with conditions)

  • Also at the European Commission, completed the investigation into the alleged abuse of dominance by Gazprom in the markets for upstream gas supplies in Central and Eastern European countries, negotiating Gazprom’s commitments

  • Assisted TF1 in the context of the French Competition Authority’s investigation (Art. 102 TFEU) into TF1’s alleged abuse of dominance in the market for television advertising (2013−14)

  • Advised SFR in the context of its appeal against the French Competition Authority’s decision (Art. 102 TFEU) finding SFR guilty of abusive on-net/off-net price differentiation (2013−14)

  • Advised a European mobile network operator (MNO) in relation to an EU investigation (Art. 101/102 TFEU) into distribution agreements between Apple and MNOs (2012−13)

  • Advised Procter and Gamble in the context of an investigation by the French Competition Authority into alleged collusion/information exchange (Art. 101 TFEU) in the markets for personal hygiene and cleaning products (2013−14)


  • MSc Competition and Market Regulation, Barcelona Graduate School of Economics, Spain

  • MA European Economic Studies, College of Europe, Bruges, Belgium

  • Masters in Economics, University of Namur, Belgium

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Oxera will be presenting on The Economics of Climate Change at COP26—the 2021 United Nations Climate Change Conference—in Glasgow, on one of the world leaders’ days on 2 November 2021. The aim of COP26 is to increase global alignment on climate action. We will be demonstrating to the world’s governments,… Read More

Image depicting The Economics of Climate Change at COP26