Department profile
Wenger Vieli Ltd.

Competition/Antitrust

Europe Guide 2026 : Switzerland

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Wenger Vieli Ltd.

Rankings

About

Provided by Wenger Vieli Ltd.

We advise our clients on issues of UWG (Swiss competition law) and antitrust law and represent them before the Swiss Competition Commission COMCO as well as before the courts and administrative authorities.

Our expertise covers in particular the following activities:

  • Defending complex cases against authorities taking into account prevailing market conditions
  • Providing general advice, assessments and legal opinions on all aspects of competition and antitrust law to companies and industry associations, including advertising law aspects (Unfair competition law)
  • Support in contract negotiations as well as contract review with regard to possible antitrust violations in transaction agreements(exclusive or selective) distribution agreements, research and development agreements, franchise and licensing agreements, etc.
  • Strategic sourcing of suppliers using antitrust instruments
  • Advice and support for reporting mergers notifications to COMCO, including preparing the relevant data and ensuring the necessary contacts
  • Representation of companies in court cases involving competition and antitrust aspects
  • Enforcement of rights through civil courts (including follow-on actions for damages)

Chambers Review

Provided by Chambers

Competition/Antitrust - Switzerland

Band 4

What the Team is Known For

Wenger Vieli is a good choice for clients seeking assistance in competition matters related to life science, energy and technology. The firm regularly advises clients on merger control proceedings and behavioural investigations, as well as assisting with competition law compliance queries.

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Work Highlights

Provided by Chambers

  • Wenger Vieli acted for ZEG on the merger control aspects of its sale of Biketec.

Strengths

Provided by Chambers

  • Wenger Vieli has a hands-on and pragmatic approach, as well as experience from working with the competition authority and court of appeal.

    Competition/Antitrust respondentEurope

  • The lawyers are very responsive along with having an understanding of business and the ability to foresee business challenges.

    Competition/Antitrust respondentEurope

  • The team take the time to completely understand the challenges and our objectives.

    Competition/Antitrust respondentEurope

Notable Practitioners

Provided by Chambers

  • Michael Tschudin
    Michael Tschudin

    Michael Tschudin

    Michael Tschudin frequently assists clients with the Swiss competition law aspects of multi-jurisdictional mergers, as well as representing them in investigations into allegations of abuse of dominance and restriction of sales. He also advises on the competition compliance of distribution agreements and information exchange.

    • He is a very experienced, smart and hands-on competition lawyer who has previous work experience with the Swiss competition authority and the Federal Administrative Court.

      Competition/Antitrust respondentEurope

    • Michael Tschudin is a very knowledgeable lawyer who took the time to fully understand our business.

      Competition/Antitrust respondentEurope

    • He is a pragmatic guy who knows his stuff and has innovative ideas. It is generally good to work with him.

      Competition/Antitrust respondentEurope

    • He is extremely knowledgable, a good, kind person with a clear focus on the issues and on having solutions. He has an extensive and broad knowledge of competition law.

      Competition/Antitrust respondentEurope
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Ranked Individuals at Wenger Vieli Ltd. (1)

Switzerland

Members

Provided by Wenger Vieli Ltd.

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