Schellenberg Wittmer Ltd is particularly valued by clients for its ‘fast comprehension of complicated facts’ in competition law matters, including merger control, dominance and distribution cases, compliance programs, internal audits and civil litigation. The group is chaired by David Mamane, who is considered a ’go-to resource’ for Swiss and European competition law, including merger control, cartel investigations and dawn raids. In January 2025, the team celebrated the promotion of Amalie Wijesundera, who advises on compliance, distribution and licensing agreements, and public procurement, alongside the arrival of Serafin Ritscher, who handles Swiss competition and administrative law matters. Tobias Magyar, promoted in July 2025, advises on complex competition investigations and administrative proceedings across the transport, postal services and energy sectors.
Legal 500 Editorial commentary
Testimonials
Collated independently by Legal 500 research team.
- ‘Schellenberg Wittmer is a market leader in Switzerland. Very strong academically, pragmatic advice. Commercially sound and concise.’
- ‘David Mamane is clearly a key player in the Swiss market. My go-to resource for Swiss competition law.’
- 'The analysis from the team is of high importance for, in particular, the development of new services.'
- ‘David Mamane is an excellent and impressive expert in Swiss competition law. I am also impressed by Frank Bremer's ability to present complex legal analysis in a format which is understandable.’
Key clients
- Belimo
- Bucher Landtechnik
- Burger King
- Decathlon
- Dormakaba
- Fiat Chrysler Automobiles
- Globe Chemicals
- Lafarge Holcim
- Le Coq Sportif
- Miele
- Novartis
- Novo Nordisc
Work highlights
Represented Novartis in a procedure initiated by the Swiss competition authorities regarding an alleged abuse of a dominant position, based on the use of its patents in infringement procedures against a third party.
Represented Symrise in a procedure initiated by the Swiss competition authorities regarding an alleged cartel with its competitors.
Represented Pistor in the ongoing cartel investigation by the Swiss authorities regarding allegedly unlawful horizontal agreements in the context of payment transaction services provided by the company MARKANT.
Lawyers
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.
Practice head
David Mamane
Other key lawyers
Peter Georg Picht; Frank Bremer; Tobias Magyar; Amalie Wijesundera; Serafin Ritscher; Stéphanie Chuffart-Finsterwald