Sander Oorthuys
2316 WB Leiden
2301 RA Leiden
Attorney-at-law
Sander specialises in commercial litigation and arbitration. His practice encompasses court proceedings and arbitral proceedings involving, for example, agency and distribution law, purchase agreements, tort liability, and post-M&A disputes.
Sander's expertise covers the full spectrum of dispute resolution, from conducting litigation and domestic and international arbitration proceedings to the levying and lifting of attachments. He has clients in the national and international retail, manufacturing and wholesale sectors, and is a frequent lecturer for both lawyers and students on subjects such as civil procedure and the techniques for conducting oral pleadings.
Sander is a specialist in complex, cross-border disputes, acting as counsel in international arbitration proceedings (including ICC, NAI and ad hoc) and before the national courts. He also advises on civil fraud, tort liability, shareholders' disputes, and associated claims.
In addition to his role as counsel, Sander sits as arbitrator at the Netherlands Arbitration Institute (NAI).
Specialisations
Sander's expertise covers the entire range: from drafting and negotiating agreements to conducting the relevant legal or arbitration proceedings, including the levying and lifting of attachments. Sander has clients in the national and international retail, manufacturing and wholesale sectors. He regularly publishes articles regarding contract law and is a frequent lecturer for both lawyers and students on subjects such as civil procedures and the techniques for conducting oral pleadings.
Work experience
Before co-founding Legaltree in 2008, Sander Oorthuys worked for more than six years as a lawyer at the Rotterdam office of NautaDutilh, where he specialised in Transport law and Corporate and Commercial litigation.
Memberships & ancillary positions
- Dutch Arbitration Association
- Dutch Association of Procedural Law (NVvP)
- Dutch Association of collection and litigation lawyers (VIA)
- Deputy member of the disciplinary committee of the Royal Dutch Rowing Association (KNRB)
Education
- Grotius Academy – postgraduate specialisation Mergers and Acquisitions, 2016
- Grotius Academy – postgraduate specialisation National and International Contracts, 2010 (with honours)
- Radboud University – Dutch Civil Law, 2002
Testimonials
Legal 500 2026: “Wouter and Sander are very strategic, and quickly consider several tracks and options, obstacles on the way, and suggest the most suitable, direct and sensible route.”
Legal 500 2025: “Very proactive approach, in-depth knowledge of the industry, out of the box thinking”.
The New Care Organisation (DNZ) has worked with several partners at Legaltree for many legal issues and proceedings. First and foremost, we are impressed with the expertise of Jan ter Horst, Willemijn Lever and Sander Oorthuys. Their advice is to the point, which has helped our organisation to focus itself better and is therefore able to perform at a higher level. In procedures, they always keep an eye on our interests as clients. But their balanced advice is also the result of risk assessment and reasonableness. So, we as Legaltree clients have always felt we have received excellent support.
H.K. Swaters
De Nieuwe Zorgorganisatie
Specialisatie
