Stefan Grieder

Juliette Ancelle is a top attorney recognized by Best Lawyers in the practice area(s) of Entertainment Law, Intellectual Property Law and Labor and Employment Law. Juliette, who practices law in Lausanne, Switzerland, has been recognized since 2019. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Juliette is held by other top lawyers in the same geographic and legal practice area.

Peter Straub is counsel in the Litigation & Arbitration Team. He is specialised in complex international commercial disputes and represents parties in both state court litigations and before arbitral panels. His main areas are disputes stemming from telecommunications, pharmaceutical products, construction, joint ventures, commodities trading, high end consumer goods, shareholders' positions, post M&A, etc. Peter Straub is sitting as an arbitrator in international arbitrations (ICC, S...

Patrick W. Vogel is a partner with Walder Wyss. He specializes in corporate law, as well as in banking and finance. He advises domestic and foreign companies on mergers and acquisitions and private equity transactions. With an education in both business and economics (HEC Lausanne) and law, he began his career by working for several years as an associate in the busy corporate finance departments of two pre-eminent US law firms in New York. Patrick Vogel has advised numerous clients on cross-b...

Etienne von Streng is a co-founder of Streng SA, a tax law firm based in Geneva, Switzerland. Etienne received his law degree from the University of Lausanne (Switzerland), was admitted to the Zurich bar, and holds a Certified Tax Expert diploma. Etienne advises on Swiss and international tax matters for companies including listed and private multinationals, high net worth individuals, entrepreneurs, and families. His expertise includes in general tax optimization, frequent negotiations with ...

Partner & Member of the Steering Committee of the CMS Competition & EU Group Marquard Christen specializes in competition (antitrust) and public procurement law. Marquard advises Swiss and foreign companies on all aspects of Swiss and EU competition law (horizontal and vertical agreements, dominance abuse, merger control and civil antitrust law) and represents them in proceedings before competition authorities and courts. Over the past 15 years, he has gained special knowledge in vari...

Dominique Gemperli's main practice areas are banking & financing, capital markets and restructuring. She has more than 10 years of experience in advising Swiss and international financial institutions, industrial enterprises and other companies in project financing, asset financing, corporate lending, real estate financing and acquisition financing. She further assists clients in regulatory matters and general contract and corporate law. Dominique graduated from the University of Zurich i...

Alain Alberini is a top attorney recognized by Best Lawyers in the practice area(s) of Intellectual Property Law. Alain, who practices law in Lausanne, Switzerland, has been recognized since 2026. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Alain is held by other top lawyers in the same geographic and legal practice area.

Hubertus Hillerström is a partner in the Banking & Finance Team. He is specialised in national and international financings and mergers & acquisitions, including structured finance as well as private equity and venture capital transactions. He has accompanied numerous commodities and trade finance operations (oil and gas, metals and soft commodities) and follows closely the legislative changes in this field. Hubertus Hillerström also specialises in real estate transactions a...

Michael Isler is a partner and member of the management board in the product groups Intellectual Property, Information Technology and Data Protection. He regularly advises in complex outsourcing, technology transfer and platform projects from the conceptual and negotiation phase to dispute settlement. He further enjoys a vast experience in copyright, trademark and patent law. A particular focus of his work is dedicated to the life sciences and health sector. Michael Isler regularly publishes ...

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 ...