Mr Halldor Brynjar Halldorsson > LOGOS > Reykjavik, Iceland > Lawyer Profile


Work Department

Administrative and development law • Competition law • Corporate and commercial law • Dispute resolution and litigation • EU/EEA • Financial restructuring and insolvency • Mergers and acquisitions




Supreme Court Attorney Halldor Brynjar joined LOGOS in 2007 and became a Partner in 2019.


English • Danish


The Icelandic Bar Association


Halldor Brynjar graduated from the Reykjavik University with a mag.jur degree in 2009, Kings College in London with a Master’s degree in European Competition law in 2017, qualified as an Attorney in 2010 and a Supreme Court Attorney in 2017.

Lawyer Rankings

Iceland > Dispute resolution

(Next Generation Partners)

Halldór Brynjar HalldórssonLOGOS

Dispute resolution is a core tenet at LOGOS, which houses one of the most well-established practices in the domestic market. The team acts at all levels of the court system, including handling cases before the Supreme Court, Court of Appeal, arbitration tribunals as well as the EFTA Court, and counts a substantial number of Supreme Court attorneys among its deep roster of seasoned practitioners. Derivative settlements, set-off claims, cross-border clawbacks, insolvency claims, corporate investigations and criminal and civil liability cases, among others, comprise the team’s core competencies, and the team frequently operates across the construction, maritime, transport and IT sectors. Heiðar Ásberg Atlason heads up the department, focusing on bankruptcy law, restructurings and workouts, including the associated litigation, while Helga Óttarsdóttir and Halldór Brynjar Halldórsson excel in competition litigation and Ólafur Eiríksson has notable experience before the Supreme Court.

Iceland > EEA and competition

(Next Generation Partners)

Halldór Brynjar Halldórsson – LOGOS

The ‘strong team’ of experienced practitioners at LOGOS maintains the group’s stellar track record as a premium Icelandic firm in the space, regularly advising on all aspects of complex and challenging mandates. On the competition side, the team’s comprehensive work portfolio largely consists of appearing before competition authorities, providing advisory services regarding dominant market positions and horizontal and vertical agreements, dawn raids, state aid issues, merger control work and private enforcement cases. When it comes to EU and EEA mandates, the group’s workload sees it engaged on matters pertaining to the full suite of issues and frequently acting before the EFTA Surveillance Authority, the European Commission, the EFTA Court and the European Court of Justice. Helga Óttarsdóttir heads up the practice group, receiving support from Gunnar SturlusonHalldór Brynjar Halldórsson, who is recommended for competition litigation, and Vilhjálmur Herrera Þórisson, who is the key name at associate level.