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Thomas Steiner

Dr. Thomas Steiner


work Schützengasse 1 Postfach
8021 Zürich


Attorney at Law

Managing Associate

Thomas Steiner’s practice focuses on data, competition and technology law. He heads the Data & Privacy practice team. Thomas Steiner preferably advises companies on data law aspects of digital transformation – with a particular focus on regulated markets and often in a cross-border context. As an attorney in the Antitrust and Competition practice team, he advises and represents clients in antitrust investigations and in merger control proceedings.

Thomas Steiner regularly speaks and publishes on developments in his fields of expertise. He is also a member of the Data Protection Law Expert Commission of the Swiss Bar Association and a Lecturer in Business Law (antitrust law) at the University of St.Gallen.


  • University of California, Berkeley School of Law (LL.M., 2014; Law and Technology Certificate, 2014)
  • University of Lucerne (MLaw, 2007; Dr. iur., 2010)


  • Lecturer in Business Law (antitrust law) at the University of St.Gallen
  • Legal Counsel at a major Swiss bank (Litigation and Investigations)
  • Visiting Foreign Counsel at Wilson Sonsini Goodrich & Rosati, Washington, D.C. (Antitrust and Privacy)
  • Research Assistant at the University of California, Berkeley School of Law (focus on information privacy law)
  • Research Fellow at the University of Lucerne, School of Law (focus on communications and media law, international trade law, and legal sociology)

Memberships in Associations

  • American Bar Association Section of Antitrust Law
  • International Bar Association
  • Studienvereinigung Kartellrecht e.V.
  • International Association of Privacy Professionals
  • Zurich Bar Association
  • Swiss Bar Association


  • German
  • English
  • French

Practice areas

  • Advertising Law
  • Communication Law
  • Competition Law
  • Compliance Support
  • Contract Law
  • Data Protection
  • Information Law
  • IT Law
  • Licence Agreements
  • Media Law
  • Online Law
  • Regulatory
  • Unfair Competition
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