
- Profile
Testimonials
Collated independently by Legal 500 research team.
‘I like the straightforward approach. The team around David is very approachable, you can always call and the advice helps in everyday business life. You feel well advised and are also made aware of new laws and regulations without getting the feeling that David and his team mainly want to sell hours, but want to help.’
‘David is not only an expert in legal matters but also in technical matters. This is extremely valuable, as there are very few lawyers who are familiar with both the technical and legal aspects.’
‘The uniqueness of VISCHER's team is that they can keep pace with the rapid technological developments.’
‘The VISCHER experts have an exceptional understanding of business.’
‘One of the standout features of this practice is its exceptional expertise in data protection law. The team is known for delivering pragmatic and business-oriented solutions, ensuring that clients receive advice that is not only legally sound but also practical for their operations. Furthermore, they are well-connected within the industry, which can be helpful as well.’
‘The primary reason for the firm's outstanding expertise in data protection is David Rosenthal. With his unique background in both technical and legal fields, combined with his extensive experience, he is regarded as one of the leading experts in data protection.’
Key clients
- ETH AI Center
- Netflix
- Swisscom
- CH Media TV
- Additiv
- Sympany
- Hostpoint
- World Economic Forum
- Swisscom
Work highlights
- Advising the ETH AI Center in relation to training a new large language model (LLM) for Switzerland.
- Advised Additiv on setting up a comprehensive ecosystem for the distribution of finance products through leading retailer Coop, branded as "coop finance".
- Advised BKW, among others, on implementing its AI governance and risk framework.
Lawyers
Hall of fame
The lawyers at the very top of the profession, widely known and respected by peers and clients for their longstanding involvement in market-leading work.

Leading partners
The strongest partners in their field, leading on market-leading deals and endorsed by peers and clients alike.
Leading associates
Leading associates with regular involvement in their team's key work, and recognition from peers or clients as being ones to watch.
Elias Mühlemann
Practice head
Rolf Auf der Maur; David Rosenthal
Other key lawyers
Elias Mühlemann