Stijn De Dier > Quinz > Vilvoorde, Belgium > Lawyer Profile


Work Department

Dispute resolution
Corporate and M&A
Corporate and finance


At Quinz, Stijn focuses primarily on dispute resolution. His practice circles around corporate litigation (shareholder disputes, director liability, post-acquisition claims, ESG litigation etc.) as well as insolvency matters, where he regularly acts both for creditors as well as for debtors in restructuring. Stijn is appreciated by clients and colleagues for his profound expertise in corporate law and his pragmatic problem-solving approach.

Prior to joining Quinz, Stijn worked at the Jan Ronse Institute for company and financial law of KU Leuven, first as a full time assistant, and later on as a fellow of the Research Foundation – Flanders (FWO). Upon his Ph.D. defense in April 2016 he remains associated with the Jan Ronse Institute on a voluntary basis. Stijn is a part time professor at the Antwerp University Faculty of Law, where he teaches insolvency law. Stijn also sits on the editorial board of the Tijdschrift voor Rechtspersoon en Vennootschapsrecht – Revue Pratique des Sociétés (TRV-RPS) and is a member of the Belgian Centre for Corporate Law (BCV-CDS). He frequently speaks at conferences or seminars, and publishes on various aspects of company and insolvency law.



Partner – Quinz | January 2024 -present

Counsel – Quinz | September 2020 – December 2023


English, Dutch and French


Member of the Brussels bar


  • Catholic University of Leuven (KU Leuven), Dr. Iur. 2016
  • London School of Economics and Political Science (LSE), LL.M. 2012
  • Catholic University of Leuven (KU Leuven), Bachelor of Laws 2007 and Master of Laws 2009 (summa cum laude)

Lawyer Rankings

Belgium > Dispute resolution

(Rising stars)

Stijn De Dier – Quinz 

Litigation boutique Quinz has vast expertise across dispute resolution, representing a wide array of prestigious clients in corporate litigation, white-collar crime mandates, banking and insolvency litigation, and arbitration proceedings. The team is adept at regulatory litigation and compliance work, with expertise in financial and healthcare law. ‘Great litigatorBenoît Allemeersch is the head of the team, specialising in commercial, financial, and corporate disputes. Stijn De Dier and Valérie Beckers are also key to the team.

Belgium > Insolvency and restructuring

(Rising stars)

Stijn De Dier Quinz

Boutique firm Quinz combines corporate and financial expertise with capacities in dispute resolution and competition to provide its clients with multidisciplinary advice on a wide range of insolvency, reorganisation, and asset recovery matters. While primarily representing creditors in contentious insolvency proceedings and liability claims, the firm also guides distressed companies through out-of-court restructurings. Experienced litigator and arbitrator Benoît Allemeersch is furthermore capable of acting as a court-appointed liquidator in the context of large-scale bankruptcies. Allemeersch heads up the practice, which is bolstered by the expertise of insolvency and corporate finance expert Stijn De Dier.