Attorney at law, Partner

Dennis Zieren

Specialisation

Within Ploum, Dennis leads the IT and Privacy team. He has over 20 years of experience in the field of IT contracts and IT disputes. As a result, Dennis knows what a supplier or customer may expect and can quickly and pragmatically advise on the drafting, assessment, negotiation and termination of IT contracts and IT projects.

The sharing and/or enrichment of data plays an increasingly important role in many IT projects in which Dennis is involved, and therefore Dennis' extensive knowledge and experience in the field of privacy law.

An important part of his practice is assisting clients, both contracting authorities and tenderers, in IT projects that must be put out to tender under national or European procurement law.

Dennis also litigates on a regular basis. Both on conflicts regarding the execution or termination of IT contracts and the outcome of a tendering procedure.

Dennis is part of the editorial team of IT en Recht (www.itenrecht), the online platform for IT lawyers, and is responsible for the chapter on the Netherlands in the Chambers Global Practice Guide Public Procurement & Government Contracts. Dennis has also completed two post-graduate Grotius specialisation courses: IT Law (2002) and European and Dutch Procurement Law (2009).

What clients say about me

‘Dennis Zieren; clever lawyer covering all aspects of data privacy and data protection. Very client focused. He is able to put advice in the right context and framework for the situation.’- Legal 500 EMEA 2022

Background

Dennis (1970) graduated from Leiden University and has joined Ploum in 1999. Dennis has become a partner of Ploum in 2006. Before joining Ploum Dennis has worked as an in-house lawyer for the Royal Dutch Air Force and a major Dutch insurance company.

Starting from a broad commercial contracts and commercial litigation practice, Dennis has developed since 2000 an expertise in first IT & Privacy Law and later on Public and Utilities Procurement Law.

 

 

Publications

  • ‘Innovation in IT Outsourcing relations’, co-author (in Dutch), Platform Outsourcing Netherlands, 2014

Memberships

  • ITechlaw
  • Nederlandse Vereniging voor Aanbestedingsrecht (NVvA), the Dutch Association for Procurement Law
  • Nederlandse Vereniging voor Informaticatechnologie en Recht (NVvIR), the Dutch Association for Information Technology and Law
  • Vereniging Privacy Recht (VPR), the Dutch Association for Privacy Law
  • Vereniging Informaticarecht Advocaten (VIRA), the Dutch Association for Information Technology Law

The Netherlands Bar’s register of legal practice areas (rechtsgebiedenregister)

Dennis Zieren has registered the following principal (and secondary) legal practice areas in the Netherlands Bar’s register of legal practice areas (rechtsgebiedenregister):

  • Procurement law (aanbestedingsrecht);
  • ICT law, sub legal practice area privacy law.

Based on this registration, Dennis Zieren is required to obtain ten training credits per calendar year in each registered principal legal practice area in accordance with the standards set by the Netherlands Bar.

Track records



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