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Patrick Sommer

Patrick Sommer

CMS von Erlach Poncet LtdDreikönigstrasse 7PO BoxZurichSwitzerland8022
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Global Leader

WWL Ranking: Recommended

National Leader

Switzerland - Competition 2019

Professional Biography

WWL Ranking: Recommended

WWL says

Patrick Sommer is “doing great work” in the competition space according to peers who note he “handles his cases very well” and is “a great communicator”.


Dr Patrick Sommer is co-head of the CMS competition and EU group. He graduated from the University of St Gallen in 1987 and was admitted to the Bar in 1989. Patrick Sommer wrote his doctoral thesis on the relationship between Switzerland and the EU, and completed his postgraduate studies at the College of Europe in Bruges.

Before joining CMS he worked for seven years in the legal department of the Swiss multinational group Holcim (now LafargeHolcim), where he was promoted to the offices of general counsel and secretary of the board of directors.

Patrick Sommer represents major Swiss and international companies in all aspects of antitrust law including Swiss and multi-jurisdictional merger control filings, investigations of the Swiss competition authorities and dawn raids. He has represented a wide range of companies and trade associations in proceedings before the Swiss competition authorities. He frequently speaks at conferences and regularly publishes on antitrust issues.

Patrick Sommer is a member of the international advisory board of the St Gallen international competition law forum and of the Studienvereinigung Kartellrecht. Other areas of practice include corporate and commercial law. Patrick Sommer is fluent in German, English and French.

CMS von Erlach Poncet Ltd is one of Switzerland's leading law firms, whose deep roots, unique positioning and highly recognised expertise enables it to deliver innovative, high-value-added solutions. More than 4,500 legal and tax experts of CMS in 74 offices help organisations and individuals thrive in changing times.

The CMS competition and EU practice group has more than 170 competition lawyers in 42 countries. 

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