Department profile
Arbitration
Global Guide 2026 : Switzerland
Rankings
Ranked Individuals
Ranked Individuals
About
Provided by MLL Legal
MLL Legal’s arbitration team combines decades of experience in international arbitration with a deep and specialist knowledge of international business law.
What matters in domestic and international arbitration is to resolve the dispute efficiently and successfully, keeping in mind that a legal solution is a means to a business goal.
Over the last five decades, we have represented clients and acted as arbitrators in hundreds of commercial and investment disputes under the world’s most prominent international arbitration rules (ICC, ICSID, SCAI, CAS, LCIA, DIS, VIAC, CAM, SCC, NAI, DAI, IATA, WIPO, UNCITRAL) and in arbitrations seated in Switzerland and across Europe, the Middle East, Africa, the Americas and Asia. We also conduct arbitrations in specialised areas, including sports, commodity trading, trust & estates, and investor-State.
Chambers Review
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Strengths
Provided by Chambers
MLL Legal carefully analysed each and every concern relating to the case before approaching with a good and efficient strategy.
Arbitration respondentGlobalThe team at MLL Legal provides thorough analysis of complex and technically difficult cases. The lawyers are always willing to meet, discuss and provide fast, detailed legal advice.
Arbitration respondentGlobalMLL Legal stands out for its deep international experience, sector-specific expertise and client-focused approach. We value its responsiveness, creativity and ability to simplify complex issues.
Arbitration respondentGlobalEvery member of MLL Legal's team has very good knowledge of what they are doing or handling.
Arbitration respondentGlobalMLL Legal provides clear communication, prompt and tailored responses and a strong commitment to client service.
Arbitration respondentGlobal
Notable Practitioners
Provided by Chambers
Band 5 
Band 5 Jean Marguerat
Jean Marguerat assists clients with arbitrations concerning lease agreements and partnership agreements. He also acts as president and arbitrator or co-arbitrator in ICC and Swiss Rules proceedings. I would highlight Jean Marguerat for his efficiency as both counsel and arbitrator.
Arbitration respondentGlobalJean Marguerat is a high-calibre counsel with expertise in commercial contracts and Swiss law. He quickly understands the subject and offers good strategy in his approach.
Arbitration respondentGlobalJean Marguerat is a lawyer who combines great charisma with deep knowledge of the law and arbitration.
Arbitration respondentGlobal
Switzerland, expertise based abroad in Spain 
Switzerland, expertise based abroad in Spain Jean-Marie Vulliemin
Based in Madrid, Jean-Marie Vulliemin assists Spanish clients with arbitrations under Swiss Rules.
Ranked Individuals at MLL Legal (3)
Switzerland
Jean-Marie Vulliemin
Arbitration
View profile Jean Marguerat
Arbitration Counsel
View profile Jean Marguerat
Arbitrators
View profile
Members
Provided by MLL Legal
Sabina Schellenberg
Stefan J. Schröter
Julien Tron
Daniel Bloch
Guillaume Fournier
Christian Schilly
Felix M. Mathis
Jean-Luc Herbez
Serge Calame
Léonard Stoyanov
Maud Udry-Alhanko
Walter Häberling
Florian Müller
Dmitry A. Pentsov
Simon Holzer
Urs Boller
Alain Le Fort
Thomas Kälin
Cosima Trabichet-Castan
Philippe Prost
Michael Ritscher
Guy-Philippe Rubeli
Bernard Lachenal
Alain Gros
Marcel Steinegger
Head of Department
Jean-Marie Vulliemin
View profile of Jean-Marie Vulliemin
MLL Legal has rankings in the following guides
Band 4
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