Dennis Zieren heads Ploum's IT and privacy practice. Through his experience of more than 25 years as a lawyer in the IT sector, he knows what can be expected from both suppliers and buyers. This knowledge and experience allows Dennis to move quickly when drafting, assessing or negotiating contracts as well as assisting clients in disputes. Dennis regularly litigates on the interpretation and/or termination of IT agreements.
In addition, part of Dennis' practice focuses on the intersection of IT law and procurement law. In this respect, he advises and/or litigates on behalf of both contracting authorities and tenderers.
Furthermore, Dennis advises clients on various privacy issues, including questions on processing grounds, opt-ins, processing of health data and (international) exchange of personal data. Dennis assists clients with extensive (national and international) compliance processes, dealing with data breaches (including claiming compensation for damages suffered) and performing Data Protection Impact Assessments (DPIAs).
‘Dennis Zieren gives you everything needed to be in an optimal position. A go-to person for data privacy and data protection-related matters. Fast, hands-on and client focused. Easy to work with.’ - Legal 500 EMEA 2023
Dennis (1970) graduated from Leiden University in 1995 and has worked at Ploum since 1999 (as a partner from 2006). Dennis has completed two postgraduate Grotius specialist courses: IT law (2002) and European and Dutch procurement law (2009).
Dennis Zieren has registered the following principal (and secondary) legal practice areas in the Netherlands Bar’s register of legal practice areas (rechtsgebiedenregister):
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.
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