Technology, Media and Telecoms (TMT) Law

Our top-ranked team advise clients on all aspects of technology, media and telecoms (TMT) law. Our advisory services are based on detailed industry-specific knowledge and insight into the opportunities and challenges posed by modern IT use.

Our expertise and experience in outsourcing, including cloud solution handling, are strong and comprehensive. Our team of personal data experts is the biggest and most experienced team in Denmark, regularly assisting some of the country's and the world's largest businesses and public authorities with all aspects of personal data law.

We focus on uncovering and handling the risks and opportunities presented by the use of IT. We advise clients and providers, and consider it important to take a varied and balanced approach that does not exclusively focus on the law, but also on the financial, commercial and strategic aspects that our draft solution must underpin.

Our team advise leading Danish and foreign businesses and have insight into the most important and biggest transactions in not only Danish but also international markets.

We have extensive industry-specific knowledge, and our clients include a wealth of national and international well-established businesses, start-up businesses and public authorities. Our special position enables us to advise and represent our clients at the very highest professional level and to find commercially useful and viable solutions.

Our experience in the public sector also provides us with a solid platform for advising clients on the interpretation of the rules that competent authorities apply.

Our practice area interfaces with many other practice areas, such as HR, competition and EU law – areas in which we also provide advisory services. Our close collaboration with Plesner's other specialists means that we are in a position to offer team-based online advice and assistance in related disciplines as well as regarding direct and indirect taxes.


  • Renowned team covering all areas of TMT, including data protection, telecommunications regulation and cloud computing agreements. Also possesses noteworthy expertise in outsourcing projects and IT disputes. Boasts a range of clients such as public entities, major film distribution companies and large international telecom groups. 

    "They are one of the firms with the most international outlook and they are very commercial."

    "They keep to their deadlines and they provide understandable and practical advice that we can immediately use." (2017)
  • Within information technology and telecoms, Plesner is a first tier firm.

    Plesner is experienced in advising on the regulatory aspects of telecoms transactions and is often instructed on contract and regulatory issues in data protection and cloud services. (2017)
  • "I appreciate the team's expert knowledge and the ability to answer all issues raised, combined with outstanding availability."
    "I really enjoy working with Plesner. It's responsive and easy with invoicing, so if I had to draw on one firm in Denmark, I would recommend Plesner."
  • Within information technology and telecoms, Plesner is a first tier firm.

    Plesner's practice "always swiftly responds to questions and provides pragmatic advice". (2016)

  • Impressive reputation for patent litigation, particularly in the pharmaceutical industry, and also noted for its expertise in trade mark prosecution. Recently active in product copying and design matters, as well as developing data protection and e-commerce compliance programmes. 

    "Very good knowledge of the latest developments in intellectual property rights legislation and case law. The advice we receive is provided in a timely manner and is well tailored to our needs."

    "Obviously extremely well versed in patent law and theory. Very capable within the enforcement discipline. Extremely pleasant to work with too; we have a very nice working relationship."
  • The firm’s IP practice is a powerhouse within every area of IP and advises and litigates on all IP law aspects such as patents, trademarks, copyrights, piracy and counterfeiting, designs, domains, consumer law, privacy policy law and marketing law. (2014)
  • Top Tier 

    Telecoms: Plesner’s lawyers work "efficiently and swiftly, and have a good understanding of business". Practice head Niels Christian Ellegaard is representing TetraStar and Damm Cellular Systems in a €50m claim against the Danish state concerning breach of the TETRA (Terrestrial Trunked Radio) licence; the case has been appealed to the Supreme Court. Michael Vilhem Nielsen acts for Eutelsat. Other clients include Telenor, Nianet, SEAS-NVE and AT&T. Regulatory expert Jon Balsby advises clients such as Sprint.

    Information Technology: Niels Christian Ellegaard heads Plesner’s IT practice, which demonstrates "commercial acumen and market knowledge". It advises IT service providers such as Accenture, Avanade, IFS and KMD, as well as corporate end users, including Tryg, Danske Bank and MT Højgaard. Ellegaard is assisting Copenhagen Airports with a major IT project. The"sharp, friendly and responsive" Michael Hopp advises on data protection and e-commerce. (2014)

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