Photograph of Jules Stuyck

Jules Stuyck

Senior Counsel

Jules Stuyck is a senior counsel in Crowell & Moring's Brussels office and is a member of the firm’s Antitrust & Competition and Product Risk Management groups. Jules is an experienced litigator, focusing on European competition law, intellectual property, and market practices. He counsels clients on state aid, the customs union, free movement, public procurement, trademark and trade practices law, media law, and environmental law.

Jules is a leading authority on Belgian and European antitrust/competition law, offering more than three decades of experience as a practitioner, government adviser, and law professor. He has advised on European sales law and has on several occasions been invited by the European Parliament’s Committee on Internal Market and Consumer Protection to offer his perspective on unfair trading practices, consumer law, sales law, and internal market issues.

Representative Matters

  • Jules represented the Belgian authorities in the first important follow-on claim for damages against members of a cartel (that had previously been condemned by a Decision of the European Commission).
  • Jules acted recently for an important operator of the sharing economy against incumbents that tried to hinder the activity with an action for unfair competition in Belgian courts.
  • He represented a Belgian airline in a state aid case  triggered in a Belgian court by a competitor.
  • He assisted several European agencies before the General Court of the EU in cases regarding public procurement.

Legal Rankings

  • Personally ranked in Chambers Europe for Competition law.
    • “a well-respected figure” with a “long-standing presence in the Belgian competition sphere” and a “broad experience of aspects across competition and trade law” (2020)
    • “a brilliant lawyer” and a “delightful person” (2019)
    • “Clients appreciate that his ‘very proactive, good knowledge of our business produces very accurate advice’” (2018)
    • “very thorough, easy to work with and adapts well to changes in a litigation. His first-class strategic legal thinking is also an extremely precious asset.” (2017)
  • Recommended in Legal 500 EMEA for Belgian and EU and Global Competion. 
    • “has over three decades of experience in the competition arena as a competition practitioner, government adviser and law professor.” (2020)

Professional Activities and Memberships

Jules is an emeritus professor of top European universities: KU Leuven (Catholic University Leuven) (BE) and Raboud Universiteit Nijmegen (NL). He is a guest professor at Université Panthéon-Assas Paris 2 (FR), and former guest professor at Central European University Budapest (HU). He is chair of the SELDIA (the direct selling association) Code Administrator.


Jules graduated in law from the Catholic University Leuven, where he also obtained his Ph.D on "Aggressive Sales Methods" (a comparative study of the law of the original 6 Member States of the European Community) in 1975.

Speaking Engagements

Jules is regularly invited as a speaker by the Belgian bar association, and by professional and governmental organizations, and universities both in Belgium and abroad.


Jules is a leading academic in Belgian and EU competition and consumer law. He has many major publications to his name. For more details see Highlights, News & Knowledge.


  • Catholic University of Leuven, J.D.
  • Catholic University of Leuven, Ph.D


Admitted to practice: in Belgium and before the European Court.

View More

"Whistleblowing – A Guide to Compliance: Part 6," Labor & Employment Law Alert - Europe (December 17, 2021). Contacts: Emmanuel Plasschaert, Jules Stuyck, Yaël Rager
Client Alert / Newsletter
Legal 500 EMEA Recommends Crowell & Moring in 11 Practice Areas and Recognizes 13 Lawyers (April 27, 2020)
Firm News / Announcement
Chambers Ranks Seven Lawyers and Four Practice Groups in 2020 Europe Guide (April 9, 2020)
Firm News / Announcement
"Comment lutter contre les pratiques commerciales déloyales entre entreprises?" LIDC 2019 International Congress on Innovation and Modernization of Competition and IP Law, Paris, France (November 7-10, 2019). Panel Member: Jules Stuyck.
"Implicaties van de richtlijn voor het Belgische recht," Nieuw Economisch Recht in B2B Relaties, KU Leuven et Intersentia, Leuven and Kortrijk, Belgium (October 17 and November 14, 2019). Speaker: Jules Stuyck.
"Commercial and Economic Law in the European Union," 2nd ed., Kluwer Law International, Alphen a/d Rijn, p 268 (2019). Author: Jules Stuyck.
Legal 500 EMEA Recommends Crowell & Moring in 11 Practice Areas and Recognizes 14 Lawyers (April 16, 2019)
Firm News / Announcement
"Belgium," The Fathers and Mothers of Consumer Law and Policy. The Foundational Years 1950-1980, H.-W. Micklitz – E. Hondius – T. van Mierlo – T. Roethe (eds), European University Institute, pp 83-97 (2019). Author: Jules Stuyck.
Chambers Ranks 7 Crowell & Moring Lawyers and 6 Practice Groups in 2019 Europe Edition (March 21, 2019)
Firm News / Announcement
"Handelspraktijken en contracten met consumenten," 5e efd., Kluwer, Mechelen, XXIX + 684 p (2019). Co-author (with B. Keirsbilck) Jules Stuyck.

For all Highlights, News & Knowledge, please click here to view desktop bio.

Crowell & Moring LLP is an international law firm with offices in the United States, Europe, MENA, and Asia that represents clients in litigation and arbitration, regulatory and policy, and transactional and corporate matters. The firm is internationally recognized for its representation of Fortune 500 companies in high-stakes litigation and government-facing matters, as well as its ongoing commitment to pro bono service and diversity, equity, and inclusion.

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