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Attorney-at-law, Partner

Mia Anne Gantzhorn

Mia Anne Gantzhorn has extensive experience within all aspects of competition law, EU Law and IP law. She advises both Danish and international clients on matters concerning competition law, extending from merger control to anti-competitive agreements as well as general assessments of potential competition law issues. In addition, Mia regularly gives lectures on the framework of the Competition Act as well as sector-specific.

Mia is highly experienced in representing businesses in connection with dawn raids conducted by the Danish Competition Authorities and advises on how to handle such situations and assists clients with the practical matters in connection hereto. In recent years, Mia has advised on matters within state aid - both identification and structuring of support schemes as well as subsequent handling of illegal aid. In addition, Mia assists both private and public actors in navigating the intersection between public procurement and the allocation of public funds in competitive markets.

Mia has extensive experience within all aspects of IP law. She advises both Danish and international clients on matters concerning copyrights, patents and trademarks as well as general assessments of potential infringement of marketing regulation. Mia has been appointed an external lecturer at the University of Copenhagen for a 4-year period, teaching EU law to the university students. Her long-term experience working with the extensive overlap between EU law and national IP law provides Mia with professional competencies that benefit both Danish and international clients. Mia has been involved in a variety of cases concerning misleading marketing and violation of commercial rights. In this context, Mia has assisted clients when cases have been handed over to the police or brought to the courts.

Additionally, Mia has several years of experience from the Danish Competition and Consumer Authority, where she managed and oversaw the rules of the Competition Act within telecommunications, IT, finance and service. In addition, Mia was part of the Danish Competition and Consumer Authority's team handling cases concerning the Payment Services Act. In addition, Mia has been involved in several cases concerning free movement within the EU.

Mia is co-author of ‘Vertical Agreements and Competition Law’.

Specialises in

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Career and education

  • 2024
    Partner (equity), Mazanti-Andersen
  • 2021
    Partner, Mazanti-Andersen
  • 2020
    Attorney-at-law, Mazanti-Andersen
  • 2019
    Attorney-at-law, Gorrissen Federspiel
  • 2017
    Attorney-at-law, Horten
  • 2014
    Attorney-at-law, Nielsen Nørager
  • 2010
    Danish Competition and Consumer Authority
  • 2010
    Master of Law, University of Copenhagen