Léon Korsten
Gebouw Meerparc Amstelveenseweg 638
1081 JJ Amsterdam
+31 (0)20 5419 873
Main Practice Area


  • Utrecht University, Dutch law, 1985
  • Léon Korsten advises on and litigates in cases involving EU and national competition law, state aid, market regulation (enforcement and supervision), public procurement and civil-law enforcement. He also advises on and assists in investigations and raids conducted by the regulatory authorities and he regularly conducts internal investigations for his clients.

Léon has handled many European and Dutch competition law cases, including the Dutch civil proceedings which led to the famous 1999 Eco Swiss/Benetton judgment of the European Court of Justice.

Léon is Global Co-Chair of DLA Piper's Antitrust & Competition Group.

Areas of experience

  • EU and national Competition law: merger control, cartels, abuse of dominance, state aid
  • Public Enforcement
  • Market Regulation
  • Public Enforcement
  • Public Procurement
  • Complex Civil Litigation

Key experience

  • Acting as defence counsel in relation to EU and national dawn raids and cartel investigations
  • Acting as counsel in civil litigation and arbitration in relation to issues of enforcement and nullity of commercial contracts
  • Acting as defence counsel in follow-on civil litigation in relation to a.o. the (alleged) vitamins cartel, veterinarians cartel, air freight cartel, paraffin wax cartel, German sugar cartel and natrium chloride cartel
  • Advising and acting as counsel in relation to regulatory matters, a.o. in the financial sector
  • Acting as co-counsel for a pension fund in relation to enforcement of the "prudent person" investment rule (so-called "goudbeleggings"-zaak)
  • Advising and conducting civil litigation in relation to public procurement pertaining to a.o. collection of household waste and large and complex DBFM contracts

Professional Qualifications

  • Advocaat admitted with the Nederlandse Orde van Advocaten


  • Recommended by Chambers 2018
  • Léon has been recommended by Chambers Europe 2017 (Clients say "He is fast, to the point, flexible and service-oriented") and Legal 500 EMEA 2017 for EU/Competition.


  • The Association of Competition Law (Vereniging voor Mededingingsrecht)
  • The Dutch association of European Law (Nederlandse Vereniging voor Europees Recht)
  • The Association of Administrative Law (Vereniging van Administratief Recht)
  • The Association of Dutch lawyers (Nederlandse Juristen Vereniging)


From 2003 until 2008 was Léon honorary lecturer in competition law at Radboud University (Nijmegen).

Léon taught from 2008 until 2012 procedural administrative/enforcement law at the Law Firm School (LFS). He frequently teaches courses and gives training sessions.


  • Cartel Enforcement Global Review - June 2017
  • Mind what you submit - €110 million fine for submitting misleading information during a merger notification, May 2017
  • Not the last word - the final report on the e-commerce sector inquiry, May 2017
  • Antitrust Matters - July 2016


Current Issues in Competition
3 June 2019
Tel Aviv-Yafo
On June 3, 2019 we co-hosted a breakfast event with leading Israeli law firm Yigal Arnon & Co. on Current Issues in Competition.

Speaking engagements

  • Antitrust and Competition - Global Enforcement Priorities, Tel Aviv-Yafo, May 2017
  • Parental liability in relation to cartel fines and cartel damage claims, Helsinki, March 2017
  • Webinar - European Court of Justice Procurement case law, Webinar, January 2017
  • Antitrust and Competition - Global Enforcement Priorities, Helsinki, November 2016

Languages Spoken

  • Dutch, English, German
Practice Areas
  • International Trade, Regulatory and Government Affairs
  • Litigation, Arbitration and Investigations
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