Advocatenkantoor De Groot Law Firm B.V.
T +31 (0)20 470 2610
M +31 (0)6 21542389


At DLA Piper, Diederik de Groot was primarily engaged in the firm’s international dispute resolution practice. He was a member of DLA Piper’s global arbitration team. He has handled complex litigations and arbitrations in a wide range of areas: corporate disputes, disputes between shareholders, joint ventures, post-acquisition issues, investment disputes, commercial transactions (international sales, distribution and agency, manufacturing and tooling contracts, franchising), private anti-trust claims (private enforcement of EU competition law), transfer of technology, telecom disputes (interconnect issues and privatisation) and intellectual property (technology licenses). These disputes generally feature issues of private international law and comparative law, EU competition law, accounting issues, technical/engineering matters, cross-border gathering of evidence, and complex damage assessments.

Diederik de Groot has handled various types of arbitrations, both international and domestic (ICC, UNCITRAL, DAI, NAI, FME), ADR proceedings (expert determination and mediation) and arbitration related court proceedings (including the Dutch court proceedings that resulted in the landmark ECJ decision in Eco Swiss v Benetton (C-126/97, ECR I-3055)).

Diederik served as an arbitrator in a number of ICC and ad hoc arbitrations. He is a member of the Chartered Institute of Arbitrators (MCIArb). Diederik de Groot has lectured and delivered papers at various conferences. He authored numerous publications on arbitration and general legal issues. He has been a member of the Amsterdam Bar Council (Raad van Toezicht, Arrondissement Amsterdam).