Christian Riis-Madsen


Thank you for your interest. Before you communicate with one of our attorneys, please note: Any comments our attorneys share with you are general information and not legal advice. No attorney-client relationship will exist between you or your business and O’Melveny or any of its attorneys unless conflicts have been cleared, our management has given its approval, and an engagement letter has been signed. Meanwhile, you agree: we have no duty to advise you or provide you with legal assistance; you will not divulge any confidences or send any confidential or sensitive information to our attorneys (we are not in a position to keep it confidential and might be required to convey it to our clients); and, you may not use this contact to attempt to disqualify O’Melveny from representing other clients adverse to you or your business. By clicking "accept" you acknowledge receipt and agree to all of the terms of this paragraph and our Disclaimer.


Christian Riis-Madsen, managing partner of O’Melveny’s Brussels office, focuses on EU competition and regulatory law and has significant experience in high-tech industries involving fast evolving markets, intellectual property rights, and complex trade patterns. As just one example, Christian represented AMD in the Intel case securing the highest fine ever imposed by the European Commission.

Christian was recognized as one of the “top young antitrust lawyers in the world” by Global Competition Review in its 2016 “40 Under 40” awards. In addition, Chambers notes that Christian has a good understanding of commercial issues and provides companies with pragmatic advice that is well-connected with the business realities. The publication describes him as “well connected, thoughtful and quick,” and he impresses “clients with his pragmatic, client-focused attitude and strong attention to detail.” That detailed focus guides clients through transactions large and small as he advises companies through notifications to the European Commission (EC) and national competition authorities, and coordinates filings in jurisdictions outside of Europe.



  • Danish
  • English
  • French
  • German
  • Norwegian
  • Swedish

Honors & Awards

  • Ranked in Belgium by Chambers Global for Competition/European Law (2018)
  • Named a Competition Expert by Who’s Who Legal (2018)


Bar Admissions

  • Denmark, Advokat


  • University of Copenhagen, Denmark, LL.M.
  • University of Copenhagen, Denmark, B.A., Law
  • University of Konstanz, Germany, Erasmus

Professional Activities


  • Advokatsamfundet, Brussels Bar


  • “Reform of the EU Merger Regulation: Looking out for the Minority,” CPI Antitrust Chronicle (January 2012 (1))
  • “One to watch—the European Commission re-thinks merger control rules for minority shareholdings,” Private Equity International (December 2011)
  • “Abuse of Dominance: An overview of recent modernisation developments in Europe,” Competition Law Insight (11 January 2011)
  • “EC Merger Control,” chapter for Corporate Acquisitions and Mergers, published by Wolters Kluwer Law and Business (2010)
  • “Towards a European Energy Community?” European Antitrust Review 2010, published by Global Competition Review (2009)
  • “EC Competition Law: An Overview of the Major Developments of 2008 and Expected Future Trends For 2009 and Beyond,” European Antitrust and Competition Alert (March 2009)
  • “A New Energy Era in the European Union,” European Antitrust Review 2009, published by Global Competition Review (2008)
  • “EU Energy,” GCR European Antitrust Review (2007-08)
  • “Strengthened Cartel Enforcement in the EU,” IBA Competition Law International (2006)
  • “Multi-jurisdictional Merger Control,” PLC Cross-Border Competition Handbook (2005/06)
  • Christian frequently authors the O’Melveny European Antitrust and Competition Alerts 


  • “GCR Live’s Antitrust and Technology,” Global Competition Review, London, UK (March 2012)
  • “Competition,” Union Internationale des Avocats’ 55th Annual Congress, Florida, USA (October 2011)
  • “Effective Document Collection/Legal Hold Protocols,” The International Quality and Productivity Centre's Information Retention & E-Disclosure Management Exchange 2009, Brussels, Belgium (2009)
  • “Enhancing Deterrence in Competition Law, Compliance Programmes, and Reduction in Fines,” Competition Law Scholars Forum Workshop, Strathclyde University Law School, Glasgow (2007)

EC Merger Control

  • Representing Norsk Hydro in the US$30 billion merger of its oil and gas operations with Statoil ASA, the largest merger in the history of Norway 
  • Representing Norsk Hydro in the unconditional Phase II clearance of its US$1 billion sale of Kerling to INEOS, and in one of the very few “gun-jumping” investigations ever carried out by the EC 
  • Representing Honeywell International Inc. in multiple acquisitions, including obtaining Phase I clearance subject to remedies for the US$2.4 billion acquisition of UK listed company, Novar plc

Abuse of Dominance

  • Representing Advanced Micro Devices in its Article 102 complaint against Intel, in which the EC in May 2009 fined Intel a record €1.06 billion (US$1.44 billion) for its anti-competitive practices.  In November 2009, all of AMD’s antitrust claims were settled, securing AMD US$1.25 billion and wide-ranging injunctive relief


  • Banana cartel investigation - Successfully obtaining the acquittal of Léon van Parys (LVP), the European importer of Bonita bananas, in a banana cartel investigation in the Northern European markets which ultimately led to the imposition of fines amounting to more than €60 million on other banana importers 
  • GFU cartel investigation – successfully representing two oil companies which were among the 30 companies targeted by the EC's probe into US$160 billion of natural gas supplies from the Norwegian Continental Shelf 
  • Rolling Stock Components - representing a multinational manufacturer of rolling stock components in relation to the EC investigation into alleged bid rigging of supplies to national rail companies.  The EC investigation was closed prior to the issuance of a Statement of Objections