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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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Annabelle Lepièce
Annabelle Lepièce
Part­ner
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...
Dirk Van Liedekerke
Dirk Van Liedekerke
Part­ner
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...
Siobhan Kahmann
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 state-aid/subsidy, regulatory, policy and trade matters. She is an Advocaat...
Romain Alderweireldt
Romain Alderweireldt
Seni­or As­so­ci­ate
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...
Joëlle Froidmont
Joëlle Froidmont
Seni­or As­so­ci­ate
Belgium, Brussels
Joëlle joined the Brussels Bar in 2010, and specialised within the law firm Olswang in EU and Belgian competition law, telecommunications law as well as general EU law, both advising and litigating...
Alexis Laes
Alexis Laes
As­so­ci­ate
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...
Marguerite Soete
Marguerite Soete
As­so­ci­ate
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...
Matthieu van Lierde
Matthieu van Lierde
As­so­ci­ate
Belgium, Brussels
Matthieu van Lierde is an Associate in the EU & Competition Group.He joined the Brussels Bar in 2012, and specialised within the law firm Olswang in EU and Belgian competition law, new technology law...
Raphael Brochier
Raphael Brochier
Ju­ni­or As­so­ci­ate
Belgium, Brussels
Raphaël graduated in 2018 as a Master of Laws with a major in economic and European law at the Catholic University of Leuven. After his studies, he specialized in European competition law at the Institute...
Sander De Volder
Sander De Volder
Ju­ni­or As­so­ci­ate
Belgium, Brussels
Based in Brussels, Sander holds a Master of Laws from Ghent University, supplemented by an LL.M. in EU Competition and IP law from the University of Liège. After completing his traineeship within DG...