Dr Thomas Legler > Pestalozzi > Geneva, Switzerland > Lawyer Profile


Work Department

Arbitration, Litigation, Intellectual property


Thomas Legler is partner and head of the arbitration team in Geneva. He is also a member of Pestalozzi’s IP&TMT practice group. His practice focuses on representing corporate and private clients in international and national arbitration and IP litigation cases. He also regularly acts as chairman, sole arbitrator or co-arbitrator under the ICC Rules, WIPO, Swiss Rules, or in ad hoc panels. In addition, Thomas Legler advises corporate and private clients in the field of intellectual property (trademark, copyright and patent law), TMT, data protection as well as entertainment and media law.


University of Berne (1988). Bar admission (1991). University of Geneva (LL.M., 1993; Dr.iur., 1996). Elected as Deputy Judge of the Federal Patent Court (2012).


French, English, Spanish.


Fellow of the Chartered Institute of Arbitrators (FCIArb), Swiss Arbitration Association (ASA), Silicon Valley Arbitration and Mediation Center (SVAMC), London Court of International Arbitration (LCIA), Hong Kong International Arbitration Centre (HKIAC), International Bar Association (Vice-Chair of IP Committee).

Lawyer Rankings

Switzerland > TMT

Pestalozzi acts for TMT clients on contentious and non-contentious matters and has particular experience in IT and data protection work. The team advises on data outsourcing, online distribution, advertisement, software licensing and e-commerce mandates, and also negotiates and drafts contracts. Thomas Legler advises on telecoms, data protection and media and entertainment issues and has experience in arbitration proceedings. Michèle Burnier specialises in data protection, IT and telecoms work and represents clients before civil and criminal courts. Lorenza Ferrari Hofer left the firm in 2020.

Switzerland > Intellectual property

Pestalozzi’s IP practice represents clients from the food, luxury goods, life sciences and retail sectors in disputes relating to the defence and enforcement of trade marks, patents, designs, domain names, copyrights and trade secrets. The team also assists with cooperation arrangements for research projects, proceedings before Swiss regulatory and registration authorities, unfair competition issues, patent and license agreements, arbitration proceedings, sponsorship agreements and the transfer of IP rights. Thomas Legler and Michèle Burnier lead the group. Lorenza Ferrari Hofer departed to Schellenberg Wittmer Ltd in 2020.

Switzerland > Dispute resolution: arbitration

Pestalozzi‘s arbitration practice is well versed in a variety of commercial and investment disputes, and is equally adept at handling domestic and international arbitration proceedings. The team regularly acts for corporates, states, individuals and investors from a range of industries, including pharmaceutical, commodity, energy and consumer goods, among others. The firm’s dispute resolution group is led by Michael Kramer, who is also experienced in sports and telecoms-related disputes. Laurent Killias and Geneva-based Thomas Legler head up the arbitration practice, which also includes Thomas Rohner and Florian Mohs, who is ‘highly dedicated to defend the rights of his clients‘.

Switzerland > Data privacy and data protection

Pestalozzi’s data privacy and data protection practice predominantly acts for clients from the IP and TMT, as well as fintech and life sciences sectors. The team is experienced in advising on digital data concerning information and communication platforms, the regulatory aspects of digital medical data and digital data in regulated areas, including the financial services sector. Thomas Legler and Michèle Burnier are the key names.