Competition & European Union Lawyers

Competition and regulatory authorities now possess far-reaching powers to investigate companies and commercial arrangements, prohibit M&A deals, force divestment of merged businesses, review markets and impose penalties or the recovery of illegal aids. There is the additional risk of private enforcement such as substantial (follow-on) antitrust damages claims. Being compliant and implementing effective risk mitigation strategies is key. We focus not only on problem solving but also on how you can avoid problems in the first place. Our large team of competition lawyers has extensive experience in helping navigate these difficult paths so that you can focus on your business. We have in-depth knowledge of competition rules across different countries and markets.

We act for public and private clients in the following areas among others: competition law (abuses of dominant position, cartels, mergers), state aid, EU Litigation, Liberalisation (Energy, transports, Handling, Telecommunications and Utilities), EU Freedoms, Contracts with the European Institutions and European structural funds.

Our team has unrivalled experience, at both European & national level, in these challenging practice areas through regular notifications or complaints to the European Commission or the Belgian Competition Authority or through litigation before the European Courts.

We have advised clients from a wide variety of sectors on regulatory and competition issues, including:

  • Public authorities and public companies
  • Airports and airlines
  • Retail
  • Banks and financial institutions
  • Utility companies (electricity, gas, water)
  • Chemicals and pharmaceuticals
  • Telecommunications
  • Logistics and transports
  • Aerospace
  • European and national associations of undertakings

The CMS Competition Group is one of the largest competition teams in Europe and at the same time one of the most widespread. We offer a one-stop-shop solution to clients for all their competition law needs across Europe and beyond. Our sector approach helps us understand your business environment and get to grips with your issues.

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Dirk Van Liedekerke
Dirk Van Liedekerke
Part­ner
Lawyer
Belgium, Brussels
Dirk specialises in EU and Belgian competition law and telecommunications law. With more than twenty years of experience in these areas, his expertise ranges from advising major EU public operators on...
Picture of Annabelle Lepièce
Annabelle Lepièce
Part­ner
Lawyer
Belgium, Brussels
Annabelle Lepièce is specialized in European law, with a focus on competition law (antitrust, State aid, merger control). She also has a broad experience in the EU freedoms (services, goods, establishment).Her...
Siobhan Kahmann
Of Coun­sel
Belgium, Brussels
Siobhan has practised EU and UK competition law for over ten years in Brussels and the UK, in addition to counselling clients on regulatory, policy and trade matters. Her competition experience has included:...
Picture of Romain Alderweireldt
Romain Alderweireldt
Seni­or As­so­ci­ate
Lawyer
Belgium, Brussels
Romain specialises in EU and Belgian competition law (abuse of dominant position, cartels and merger control) with a focus on the Electronic Communications and Media sectors.Since 2004, Romain deals with...
Picture of Alexis Laes
Alexis Laes
As­so­ci­ate
Lawyer
Belgium, Brussels
Alexis Laes joined the Brussels Bar in 2010, and specialised within the law firm Olswang in new technology law, regulatory law as well as general EU law, both advising and litigating. By joining CMS in...
Matthieu van Lierde
Matthieu van Lierde
As­so­ci­ate
Lawyer
Belgium, Brussels
Picture of Marguerite Soete
Marguerite Soete
As­so­ci­ate
Lawyer
Belgium, Brussels
Marguerite joined CMS Belgium’s European and Competition Law department in December 2015. She specialises in European Law, more particularly in competition law and State aid.She has gained experience...
Eléonore Mertens de Wilmars
Ju­ni­or As­so­ci­ate
Belgium, Brussels
Eléonore joined the European and Competition Law department of CMS Belgium in March 2020 where she continues to specialize in European law, especially in Competition law and State aid. During her studies,...
Marie Vandenneucker
Ju­ni­or As­so­ci­ate
Lawyer
Belgium, Brussels
Marie joined CMS in September 2019 where she specializes in European law, in particular Competition law. During her studies, she developed a high interest in Competition law in the Digital Age and she...