Fredrik Lilleaas Ellingsen heads Selmer's Dispute Resolution practice group, and is specialized in litigation, arbitration and complex/high value commercial disputes. He serves as a strategic legal advisor and problem solver for clients in domestic and international matters. He has experience from litigating numerous cases within a broad field of legal areas and industries, including technology disputes, construction, damages claims, M&A disputes, IT projects and intellectual property (IP). Fredrik has served 5 years as a judge at Oslo District Court, and is affiliated with the University of Oslo as a university lecturer where he regularly teaches civil and commercial procedural law. He is one of Norway's leading experts on disclosure and seizure of evidence, and passed a qualifying case before the Supreme Court of Norway in 2019 concerning a principal question of disclosure of digital evidence. Fredrik is the former head of the prestigious JUC network for litigation and dispute resolution, and is the author of the legal commentary to the Lugano Convention (Brussels regime) for Karnov Group Norway. He is ranked by Legal 500 as a Next Generation Partner within Dispute Resolution in Norway (2024) and is also highlighted in the prestigious Legal 500 Arbitration Powerlist Nordics (2024) as a leading arbitration practitioner in the Nordic region.

Work experience

Partner – Advokatfirmaet Selmer AS
2020 - 2022
Head of Litigation and Dispute Resolution network – JUC Norway
2020 - 2021
Senior Lawyer – Advokatfirmaet Selmer AS
Member – The Norwegian Bar Association's Disciplinary Committee
2018 - 2019
Senior Associate – Advokatfirmaet Selmer AS
Member/Judicial Mediator – The external panel of judicial mediators at Borgarting Court of Appeal and underlying District Courts
2016 - 2018
Sensor in investigation – The Norwegian Police University College (PHS)
2016 - 2018
Deputy Judge – Oslo District Court
University lecturer/Supervisor/Sensor – University of Oslo
2014 - 2017
Lecturer – Treider jus
2014 - 2016
Deputy Judge – Sarpsborg District Court
2012 - 2014
Associate – Advokatfirmaet Staff AS
2011 - 2012
Research Assistant – University of Oslo
2004 - 2005
Officer – Royal Norwegian Navy


2019 - 2019
Executive Education – Harvard Law School
2007 - 2012
Master of Laws – University of Oslo


Dispute Resolution Review - Norway Chapter
Legal Commentary to the Lugano Convention (Brussels Regime)
Evaluation of the quality of enforcement orders – Ministry of Health and Care Services
Judge's Handbook – Court meetings – step by step (3rd edition)
Measures for the Equality and Discrimination Board to be able to handle cases of compensation and sexual harassment – Labour Research Institute, HioA
Evaluation of attempts with expanded information and guidance to applicants and recipients of social services – Ministry of Labour
Evaluation of the Patient Rights Act, Chapter 4 A – Directorate of Health
The County Governor's processing of decisions pursuant to the Planning and Building Act