Walder Wyss Ltd. advises Swiss and international clients across a wide range of sectors, including retail, finance, healthcare, public administration, technology and research. The team provides guidance on compliance with Swiss and European data protection laws, including GDPR, in addition to assisting with matters of AI governance, cloud outsourcing and regulatory obligations. Department leader Roger Staub is widely recognised for his proficiency in IP, technology contracts and related litigation. David Vasella advises on diverse data protection matters, including compliance implementation, IT projects, and cloud outsourcing. In September 2024, Sigma Legal‘s Alain Alberini and Vincent Pfammatter joined the team, focusing on IP, innovation, cybersecurity and data protection, while Didier Sangiorgio departed in December.

Legal 500 Editorial commentary

Testimonials

Collated independently by Legal 500 research team.

'The data protection and technology team at Walder Wyss, led by David Vasella, is known for combining precision with a clear business focus. They handle Swiss and EU data protection, IT, IP and professional secrecy matters.' \n'David Vasella combines deep technical knowledge with a rare talent for explaining complex legal and technological questions in plain, actionable terms that help senior management make confident decisions.' \n'Hannes Meyle is a key strength of the team. He delivers meticulous, high-quality work and independently develops solutions that meet the highest legal standards.' \n'Walder Wyss is widely viewed as the leading Swiss firm in data protection. They have a large privacy team comprised of excellent individuals with both a good understanding of the law and a clear business focus.' \n'David Vasella is a household name in the Swiss data privacy community and one of the most prominent and well-respected data privacy professionals in Switzerland.' \n'Hannes Meyle has a good understanding of the law and a keen eye for detail.' \n'Ammina Chammah, Simon Henseler and Kento Reutimann are up-and-coming associates.' \n'The firm combines strong expertise in data protection and banking confidentiality with a forward-thinking mindset. Their willingness to navigate legally uncharted areas highlights their innovative approach.'

Key clients

APG SGA
Armasuisse
AXA
Axpo
Baxter
Beyond Gravity
BKW
BVK
Brokinsoft Ltd
CSS
Douglas
eBay

Work highlights

Represented Digitec Galaxis in an investigation by the Swiss Data Protection Authority.

Continued to act as official DPO for Swisstransplant.

Advised SWITCH on setting up a security operations centre for customers.

Lawyers

Leading partners

The strongest partners in their field, leading on market-leading deals and endorsed by peers and clients alike.

David Vasella

Practice head

Roger Staub

Other key lawyers

David Vasella; Jürg Schneider; Hans Rudolf Trüeb; Mark Reutter; Michael Isler; Martin Zobl; Alain Alberini; Hugh Reeves; Vincent Pfammatter; Hannes Meyle; Kento Reutimann; Simon Henseler; Amina Chammah; Lena Götzinger; Adrien Alberini