André Brunschweiler

Luc Defferrard, partner with Walder Wyss since 2001, has been active in the finance and legal industry for many years. He mainly advises clients in domestic and cross-border mergers & acquisitions, financing, restructuring as well as in real estate and capital market. Luc Defferrard particularly focuses on private equity and venture capital transactions. He is regularly recommended by Chambers, Legal500 and IFLR1000. Chambers Europe describes him as "always available" and "very strong neg...

Hans Rudolf Trüeb is a partner of Walder Wyss. He is the co-head of the Regulated Markets, Competition, Technology & IP team, together with David Vasella. He advises Swiss and international clients as well as public entities in corporate and technology-related transactions and with regard to compliance and governance issues. Inter alia, he handles technology transfer, licensing, distribution, joint venture and outsourcing projects as well as corporate transactions. He is often retain...

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

Counsel Simone Brauchbar Birkhäuser advises and represents clients in connection with contentious and non-contentious issues relating to trademarks, designs, copyrights, patents, data protection, unfair competition and advertisement. She has substantial experience in the drafting and enforcement of contracts for the transfer of intellectual property rights, especially license agreements. She further regularly deals with all due diligence relevant IP/IT and data protection aspects of corp...

Roger Staub is a Partner in the Information Technology, Intellectual Property and Competition Team. He represents national and international companies from various industries, such as luxury goods, pharmaceuticals, food, financial services, fashion, medical devices and media. He specialises in litigating complex cases before state courts and arbitration tribunals. In addition, he advises clients in negotiating IP and technology-related contracts and in developing IP strategies. He also works ...

Partner Philipp Dickenmann is the head of the Dispute Resolution Practice Group of CMS Zurich. He also serves as core team member of the global CMS Dispute Resolution Practice Area Group as well as the CMS Commercial Practice Area Group. Philipp Dickenmann has extensive experience in commercial litigation and international arbitration. He acts as counsel and co-counsel, sole arbitrator and co-arbitrator in numerous national and international cases. This includes arbitrations conducted under t...

Jan Ole Luuk is counsel in the Tax Team. He is an indirect tax specialist with a focus on Swiss and EU value added tax (VAT) and related customs and excise matters. He speaks and publishes regularly in the field of indirect taxation. Born in 1971, Jan Ole Luuk was educated at the Free University Berlin (First State Law Exam 1996) and the University of London (LL.M. 1997). He continued his legal education at the Court of Appeal Berlin (Second State Law Exam 2000). He graduated as a Certified T...

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...

Louise Lutz Sciamanna is a top attorney recognized by Best Lawyers in the practice area(s) of Wealth Management Practice. Louise Lutz, who practices law in Zürich, Switzerland, has been recognized since 2024. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Louise Lutz is held by other top lawyers in the same geographic and legal practice area.

Thomas Meister is a partner in the Tax Team. He is working in the fields of domestic and international corporate tax, including tax optimization, corporate and real estate finance, structured finance, corporate reorganizations, transaction structuring and M&A. Since 2004 he is an adjunct professor for tax law at the University of St. Gall. Born in 1963, Thomas Meister was educated at the Universities of Lausanne and St. Gall (lic. iur. 1989, Dr. iur. 1995), New York University (LL.M. 1998...