GCR 100 - 19th Edition


Professional notice


Marcel Dietrich took over HOMBURGER’s competition practice from partner Franz Hoffet in 2018. Both partners lead a team that includes counsels Andreas Burger and Martin Thomann, and four associates. Together, they are active in some of Switzerland’s most high-profile matters. The firm has played a key role in the country’s antitrust market since it was established in the 1960s. Since then, it has advised on Switzerland’s first leniency application, its first dawn raid, and first-ever sanctioning procedure.

Much of the competition team’s time is devoted to merger control work. It represented ChemChina in its €38 billion acquisition of Syngenta, which closed in January 2018. The deal was the largest-ever overseas acquisition by a Chinese company, and one of the three largest all-cash transactions worldwide. The team also advised Clariant on its €17 billion proposed merger with Huntsman Corporation. When that deal was abandoned in October 2017, Dietrich coordinated notifications in over a dozen jurisdictions worldwide regarding Saudi Basic Industries’ acquisition of 24.99% of Clariant instead.

Notable behavioural work includes representing Booking.com in the Competition Commission’s most-favoured-nation clause investigation, which the authority eventually declined to prohibit. Dietrich also represented UBS in the competition enforcer’s Libor, Tibor and Forex probes – which the firm says are the biggest cartel investigations ever handled by the enforcer. Hoffet leads the team representing Eli Lilly before the Swiss courts challenging a resale price maintenance fine imposed by the competition watchdog. In January 2018, Switzerland’s Federal Administrative Court quashed the fine, and the case is now pending before the Federal Supreme Court.

Key facts

Team Head: Marcel Dietrich

Team: 10 Partners, 1 of counsel and 9 associates

Practice overview

The Competition | Regulatory (CORE) practice team advises domestic and international clients on Swiss and European competition law and regulatory matters and represents them before the Swiss Competition Commission, the EU Commission and other courts and administrative authorities. The CORE practice team also advises its clients on commercial public and administrative law and on questions relating to market regulation and represents them before administrative authorities and courts, particularly in the areas of

  • Procurement law
  • Energy
  • Health and Pharma
  • Media and Telecommunications
  • Infrastructure and Transport
  • International Trade
  • Commercial Public and Administrative law
  • Data Protection

Homburger is a Swiss full-service business law firm. Since 1957, the firm has provided advice and representation to enterprises and entrepreneurs in a global environment relating to transactions, disputes and complex legal, tax and regulatory matters. Homburger has 36 partners and a total of approximately 150 professionals, including certified tax experts.

Your CORE contacts:

Marcel Dietrich | Partner| Team Head

+41 43 222 12 15

[email protected]


Franz Hoffet | Partner

+41 43 222 12 25

[email protected]


Richard Stäuber | Partner

+41 43 222 16 10

[email protected]


Mariella Orelli | Partner

+41 43 222 17 13

[email protected]


Gregor Bühler | Partner

+41 43 222 16 44

gregor.bü[email protected]


Andri Hess | Partner

+41 43 222 16 66

[email protected]


Georg Rauber | Partner

+41 43 222 15 74

[email protected]


Luca Dal Molin | Partner

+41 43 222 12 97

[email protected]


Andreas Burger | Counsel

+41 43 222 15 76

[email protected]




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