Lukas Rusch

Partner Dr Patrick Sommer is Co-Head of the CMS Competition & EU Group. In this position, he jointly leads an international team of more than 170 competition lawyers. Patrick Sommer focuses on competition law, corporate law and M&A. Patrick Sommer has graduated from the University of St.Gallen in 1987 and was admitted to the bar in 1989. He has written his doctoral thesis on the relationship of Switzerland to the European Union and completed postgraduate studies at the Collège ...

Partner Mark Cagienard specialises in tax law, covering individual and corporate taxation both on a domestic and international level with a particular focus on corporate finance, M&A and VAT. Mark Cagienard assists clients frequently in obtaining tax rulings and represents them in front of courts and tax authorities. Mark Cagienard graduated from the University of Zurich in 2006 (magna cum laude) and was admitted to the bar in 2008. In 2012 he qualified as a Swiss Certified Tax Expert. In...

Dr. Felix Kesselring is a top attorney recognized by Best Lawyers in the practice areas of Pharmaceuticals and Life Sciences Practice sinc 2027. Felix, who practices law in Zurich, advises Swiss and international companies in regulated markets such as healthcare, pharma, medical devices and life sciences. He regularly represents his clients before administrative authorities, administrative criminal authorities and courts.

Partner & Certified Specialist SBA Construction and Real Estate Law Stefan Gerster is a partner with CMS Zurich since 2001. His practice focuses mainly on real estate law. He is the head of our internal practice group Real Estate & Construction. Among the clients of Stefan Gerster are Swiss and foreign institutional real estate investors, companies with corporate real estate matters and individuals. He provides advice in real estate transactions, including acquisition and financing as...

Dr. Reto Arpagaus has been recognized by Best Lawyers since 2019 in the practice area Banking and Finance Law. He supports Swiss and international companies, entrepreneurs and private individuals in drafting and reviewing contracts as well as with corporate transactions, and he advises his clients in matters of regulatory investigations, corporate governance as well as in compliance law. Reto, who practices law in Zurich, represents clients before state courts and courts of arbitration. Dr. R...

Managing Partner Jodok Wicki concentrates on dispute resolution, litigation and international arbitration. He heads the firm's dispute resolution group and leads also the litigation practice group of CMS. Jodok maintains an active practice of state court litigation and appellate proceedings in a variety of commercial matters, such as purchase and sales agreements, joint ventures, post M&A disputes, director and officer and auditor liability and product liability. He has also a particular ...

Kaspar Landolt focuses on banking & finance, capital markets and corporate law. He has more than twenty years of experience in acquisition finance, corporate lending, real estate finance, project finance and asset finance, the issuance and offering of financial instruments, applying for regulatory licenses and other capital market topics as well as restructuring. Other key competencies of Kaspar include insurance, collective investment schemes as well as M&A and corporate law. Kaspar ...

Partner Reto Hunsperger acts as head of the insolvency and restructuring department at CMS Zurich.He specialises in litigation and arbitration. With this focus, he represents national and international companies and individuals before state courts and arbitral tribunals (under ICC Rules, Swiss Rules and CAS Rules), mainly in civil, enforcement and sport law matters. In addition, he serves as an arbitrator. A further focus of Reto Hunsperger lies in all sorts of domestic and international inso...

Partner Stephan Werlen focuses on M&A and corporate law, joint ventures, MBOs, acquisition finance, venture capital transactions, corporate restructuring and corporate relocation. He has broad experience both in domestic and international mergers and acquisitions (including auction processes) 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...

Alain Raemy is a lawyer recognized by Best Lawyers in the practice area of Corporate Law. Alain practices law in Zürich, Switzerland Best Lawyers has recognized Alain Raemy since 2026. The Best Lawyers recognition is based on a peer-review survey of lawyers in the same geographic region and legal practice area. The recognition reflects the professional regard in which Alain Raemy is held by other lawyers.