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Marlene Winther Plas


Marlene Winther Plas specialises in IT law and data protection and has more than 20 years’ experience in technology-related law. Marlene has in-depth knowledge of all major aspects of business law, including the legal and commercial challenges facing Danish and foreign enterprises. She is a qualified mediator and arbitrator and assists Danish as well as non-Danish enterprises and public authorities in the resolution of IT and commercial disputes.

Marlene is a certified IT attorney and specialises in IT law, assisting clients in eg the negotiation and preparation of complex IT contracts (supply contracts and systems procurement for the private and public sectors), IT outsourcing, development projects and major technology transactions. Marlene also deals with dispute resolution and litigation regarding IT supplies. Furthermore, Marlene has vast experience in data protection and data protection compliance projects and provides assistance to Danish and foreign enterprises and public authorities regarding compliance with data protection rules. Marlene is, moreover, head of DLA Piper Denmark’s IPT team and in-house Data Protection Compliance team. Since 2001, Marlene has been involved in political and professional activities within the legal sector. In 2008, she assisted in establishing the Association of Danish Law Firms and was its vice-chairman up until 2016; she also sat on the Committee of the Association of Danish IT Attorneys for a number of years.


Marlene provides advice to a number of French and international enterprises and represents the French Embassy in Denmark.

One of Marlene's high-profile cases was the bailout of Danish football club Brøndby IF in 2013, where, among other elements, she was in charge of the share issues.

  • Paris II, Panthéon-Assas, Maitrise de droit international et européen, 1993
  • University of Copenhagen, Master of Law, 1993


  • Marlene was included as a new entry in Kraks Blå Bog, the Danish Who's Who, in 2014


  • Co-author, "Dispute resolution in IT projects - the option of mediation" (published in Danish only), DJØF Publishing, 2011

Memberships And Affiliations

  • The Association of Danish IT Attorneys
  • Danish Mediation Lawyers
  • The Danish Arbitration Association
  • The International Bar Association (IBA)
  • The Copenhagen Bar Association