Schellenberg Wittmer Ltd

Dispute Resolution / International Arbitration / Restructuring and Insolvency / Sports / Blockchain-Technologies & FinTech

Stefan Leimgruber is a partner and the head of Schellenberg Wittmer’s dispute resolution group in Zurich. He represents clients before Swiss courts and in international arbitration proceedings (both ad hoc and institutional), with a particular focus on disputes in the financial industry, post‑M&A and corporate matters, interim measures, and the enforcement of foreign judgments and awards. He also has extensive experience handling complex disputes arising out of joint ventures and shareholders’ agreements, international sales and related transactions, agency and distribution relationships, as well as license and supply agreements. He regularly serves as arbitrator.

Stefan speaks and publishes on national and international dispute resolution and is ranked as a leading individual by the major directories. The Lexology Index 2025 lists him as one of only five Global Elite Thought Leaders for Commercial Litigation in Switzerland, highlighting his "stellar reputation for complex, cross‑border financial and corporate disputes".

Experience:

• Represents parties before Swiss courts with a particular focus on banking and financial disputes, post-M&A and corporate litigation, interim measures and enforcement of foreign judgments
• Acts as counsel and as arbitrator in international arbitrations, ad hoc and institutional, in particular in post-M&A and shareholder disputes as well as in disputes relating to joint ventures, license, purchase, and distribution agreements
• Advises and represents sport federations, officials and athletes in sports law matters

2016 - Partner at Schellenberg Wittmer

2007 - Associate at Schellenberg Wittmer

2003 - Legal Secretary and Substitute Judge at the Zurich District Court

German English

Regular publications in his areas of specializations Member of several professional associations, including IBA, ASA, DRI, AIJA, the Swiss and the Zurich Bar Association

2013 - Dr. iur., University of Lucerne

2006 - Bar Admission in Switzerland

2002 - lic iur., University of Zurich