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Sophie-Therese Stegen
Associate

Sophie-Therese Stegen, LL.M.

Rechtsanwältin

Hamburg, Germany
Languages
  • German
  • English
  • French
Social media

Sophie-Therese Stegen specialises in antitrust law and competition law. She advises on general antitrust and competition law issues and the drafting of contracts. Sophie-Therese represents companies before national and international competition authorities (namely the German Federal Cartel Office and the European Commission) and before German courts in actions for damages for infringements of competition law. Her clients are predominantly from the energy and automotive sectors.

Sophie-Therese joined CMS in 2024.

Memberships & Roles

  • Hamburg Bar Association
  • German Bar Association

Education

  • 2023 - 2024: LL.M. in European Private Law at the University of Amsterdam
  • 2023 - 2024: Research assistant (litigation) at an international commercial law firm in Hamburg
  • 2020 - 2022: Trainee lawyer at Celle Higher Regional Court including placements at two international commercial law firms in in Hamburg and Amsterdam
  • 2014 - 2020: Law studies at the University of Hamburg
Practice Areas
Antitrust, Competition & Trade Litigation Competition Law (Unfair Competition Act – UWG)

Insights by Sophie-Therese

See all Insights
Deals Germany

CMS advises KfW on the acquisition of 25.1 % of Germany's largest transmission system operator TenneT

03 Feb 2026 2 min read
Deals Germany

CMS advises German promotional bank KfW on investment in Vulcan Energie Ressourcen GmbH under the raw materials fund

04 Dec 2025 2 min read
Deals Germany

CMS advises CIP on majority stake in H2APEX's hydrogen electrolysis project in Lubmin

08 Aug 2025 2 min read
Legal Update Germany

Between Ambition and Implementation – Competition and Antitrust Law in the Coalition Agreement

27 May 2025 6 min read
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