Stefan Tuinenga


Stefan Tuinenga is a partner in the Amsterdam office and has more than a decade of dispute resolution and competition law experience. He primarily focuses on international antitrust litigation and collective actions.

Before joining Scott+Scott, Mr. Tuinenga worked for a large first-tier defense firm in Amsterdam, acting in many of the leading antitrust litigation cases. He worked on secondment as in-house legal counsel for KLM Royal Dutch Airlines, where he was responsible for worldwide competition and anti-bribery compliance. He was also a founding member of the Fair Trade Authority Curaçao, holding the positions of director and legal counsel, and is currently a non-governmental advisor.

Mr. Tuinenga regularly publishes articles on developments in competition law and litigation, such as the overview articles on actions for damages in the Netherlands, the United Kingdom, and Germany in the Journal of European Competition Law & Practice for the years 2015 and 2017 and the overview article on actions for damages in the Netherlands for the year 2019 and 2020 in the Dutch competition journal Markt & Mededinging.

When not in the office Mr. Tuinenga is passionate about triathlons.


  • Represents eight multinational companies in cartel damages claims against truck manufacturers
  • Represents four utility companies in a cartel damages claim involving the worldwide power cables cartel
  • Represented a multinational air-cargo company in the air-cargo follow-on civil damages cases
  • Acted in multiple competition law investigations by the European Commission and the Dutch competition authority, among others in the air cargo, telecommunications, insulated glass, flour, and retail food packaging sector, as well as in internal investigations
  • Represented immunity and leniency applicants in various investigations and led discussions with authorities concerning access to documents and confidentiality.


Mr. Tuinenga is admitted to the Dutch bar and has registered specializations in Litigation (Burgerlijk procesrecht, subrechtsgebied litigation) and Competition law (Economisch ordeningsrecht, subrechtsgebied mededingingsrecht). On the basis of the registration it is required to obtain ten training credits per calendar year in each registered principal legal practice area in accordance with the standards set by the Netherlands Bar.