Hengeler Mueller

Thorsten Mäger

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Practice Areas

Thorsten has a broad competition law practice covering merger control proceedings, abuse of dominance and cartel investigations, compliance trainings/audits, follow-on damage claims litigation and aspects of the day-to-day business. He represents clients before the European Commission, the German Federal Cartel Office, and the European and German courts.


Following internships at the German Federal Cartel Office and the Cartel Senate of the Berlin Court of Appeal, Thorsten joined Hengeler Mueller in 1996 (partner since 2001). 1998/99 he was a foreign associate at a London law firm.

Professional Memberships

Association for Competition Law Studies.


‘Europäisches Kartellrecht’ (European Competition Law), 2nd edition 2011; ‘Commentary on German Merger Control’, 3rd edition 2020.