Advising across all areas of employment law and noted for its strength in litigation, complex reorganisations and whistleblowing matters, Advokatfirmaet Thommessen AS is praised for its ‘strong expertise’ that makes ’the individuals stand out’. One such individual is department head Stein Kimsås-Otterbech, who consistently advises on changes in listed companies and matters involving reputational risk. Another key individual is Tron Dalheim, who is a seasoned litigator active in the oil, energy and aviation sectors. Promoted to partner in January 2024, Anders Sundsdal has a broad practice that extends to litigation, redundancy processes and transactions. Other key individuals are Håkon Berge, who heads up the Bergen practice; Alexandra Refsnes, who takes point on working time arrangements and undertaking transfers; and Jostein Opdahl-Jenssen, who is recommended for data privacy matters.
Legal 500 Editorial commentary
Accolades
Client satisfaction
Testimonials
Collated independently by Legal 500 research team.
‘The Thommessen team is excellent. Their strengths are - Very strong theoretical/academic knowledge - Enthusiastic - "On your side" - Honest - Round the clock service when needed.’
‘The team at Thommessen are very fast and efficient to communicate with, and quick to make suggestions and roadmaps to reach the end goal. My experience is that they have a quite broad yet sharp knowledge in this legal segment.'
‘Partner, Anders Sundsdal, has shown great knowledge and helped with insight and strategy that has proved valuable.’
‘The team has high competence and skills. All processes delivered are made swift and easy.’
‘Tron Dalheim and Håkon Berge are both highly skilled and give us very good support and advice in our cases. Cases are closed in a timely manner, and they are both quick to reply to guide us on our queries.’
‘We have utilized employment law assistance and are very satisfied with the services provided by dedicated employees with strong expertise and excellent client service.’
Key clients
- Total Energies EP Norge AS
- Scandinavian Airlines System (SAS)
- Bane NOR SF
- Petoro
- Wintershall DEA Norge AS
- Gard AS
- Equinor ASA
- Microsoft Norge AS
- B2Holding ASA
- Kahoot!
- Kongsberg Gruppen ASA
- NorgesGruppen ASA
Work highlights
Assisted Bluestep Bank with complex matters such as cross-border merger, integration and transfer of undertaking etc.
Assisted the German consultancy firm IPE in a lawsuit from a former consultant in Norway.
Lawyers
Hall of Fame
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Leading partners
The strongest partners in their field, leading on market-leading deals and endorsed by peers and clients alike.
Next Generation Partners
Junior partners with significant recognition from clients and peers in the market and key roles on multiple matters.
Leading associates
Leading associates with regular involvement in their team's key work, and recognition from peers or clients as being ones to watch.
Practice head
Stein Kimsås-Otterbech
Other key lawyers
Tron Dalheim; Anders Sundsdal; Håkon Berge; Alexandra Refsnes; Jostein Opdahl-Jenssen