Dr iur Stephan Werlen > CMS > Zurich, Switzerland > Lawyer Profile

CMS von Erlach Poncet Ltd.
Dreikönigstrasse 7
8022 Zurich
Stephan Werlen photo

Work Department

Corporate / M&A, Finance.


Dr Stephan Werlen is a partner focusing on Corporate / M&A, Joint Ventures, Capital Market Transactions and Acquisition Finance.


Stephan Werlen focuses on M&A, joint ventures, capital market transactions, acquisition finance, corporate relocation and corporate restructuring. He has broad experience both in domestic and international mergers and acquisitions (including auction processes), advising both on the buy- as well as the sell-side, and the financing of such transactions. In addition, he is an expert in W&I insurance transactions (M&A insurance) with a long track record in this area. Stephan Werlen also regularly advises foreign companies on their relocation to Switzerland and assists companies in their ongoing corporate and commercial activities (e.g. shareholders’ agreements, other corporate governance matters, capital measures, supply contracts, general terms & conditions, etc.).

Stephan Werlen joined CMS in 2003 and is today a partner. Before joining us he worked at the District Court of Zurich, wrote his thesis on the legal position of the target company in takeover transactions (Die Rechtsstellung der Zielgesellschaft im Übernahmekampf, Schweizer Schriften zum Bankrecht, Bd. 64, Zürich 2001) and was an associate with another Zurich based business law firm. He is an officially admitted representative of listed companies at SIX Swiss Exchange.


German, English, French.


Zurich Bar Association, Swiss Bar Association.


University of Zurich, Zurich (Switzerland), Licentiate of Laws – 1997 / Bar admission – 2000 / University of Zurich, Zurich (Switzerland), Doctor of Laws – 2001 / University of Chicago Law School, Chicago (USA), LL.M. – 2003.

Lawyer Rankings

Switzerland > Commercial, corporate and M&A

CMS has core strengths in W&I insurance, private equity mandates, D&O matters and cross-border transactions. The team is traditionally strong in transactions in the mid-market but has seen an increase in instructions to handle deals at the higher end. The team works closely with its international network, in particular for clients from the energy, financial services, infrastructure, life sciences and technology industry, among others. Department head Stefan Brunnschweiler also leads the firm’s global corporate and M&A practice. Other key names include Alain RaemyStephan Werlen and Daniel Jenny , as well as Pascal Favre in Geneva.