Zenonas Hadjicostas helps a wide range of clients address complex antitrust law issues, including abuse of dominance and cartels. He also has experience in advising on cross-border merger control cases.
Prior to joining Mayer Brown, Zenonas worked for another prominent international firm and was a trainee at both the Directorate-General for Competition of the European Commission and the Hellenic Competition Commission.
Zenonas is also active in various Diversity and Inclusion activities. He is one of the founding members of the Oxford Pride Alumni Society and engages with other lawyers in the antitrust sector by organising activities promoting inclusivity and acceptance in the workplace.
University of Cyprus, Bachelor of Law
University of Piraeus (Greece), MSc in Energy
University of Oxford, MSc in Law and Finance
- Brussels, Belgium (E List)
- One of the founding members of the Oxford Pride Alumni Society