Hallmundur is a District Court Attorney with Master’s degree in EU Competition Law from King‘s College London. He worked for over 10 years as an Internal Counsel for Síminn hf. (Iceland Telecom) the incumbent telecom operator in Iceland, the last 4 years as their General Counsel. Hallmundur is widely experienced in Corporate and Commercial Law with Communications Law and IT Law among other specifications.



MA in EU Competition Law – King‘s College London 2012

Cand. Juris – University of Iceland 2000

Matriculation Exam - Commercial College of Iceland in 1994



Partner at LMB since 2015

Partner at CATO Law Firm – 2014 – 2015

General Counsel at Síminn hf./Skipti hf. (Iceland Telecom) 2011-2014

Director for Legal and Regulatory Affairs at Síminn hf./Skipti hf. (Iceland Telecom) 2007-2011

Legal Advicer at Síminn hf. (Iceland Telecom) 2003-2007

Legal Advicer at the Ministry of Transport and Communication 2002-2003, responsible for telecommunications

Associate at LEX Law Firm 2000-2002


Practice areas

Competition Law and Staid-Aid, 

Corporate and Commercial Law 

Corporate Governance

IT and Communications Law

Data Protection

Construction Law

Public Procurement

IP Law

Energy Law

Administrative Law 




Certifications and other

Certified Real Estate Broker in 2015

Cambrigde University – IT Law Summer School 2013

Competition risk and management - Competition Compliance Programs – C5 2010

Admitted to the Bar in 2001

Certified Mediator in 2007 from Sátt - Society for Mediation