
Singled out for its ‘specialised expertise in competition law’, Arntzen de Besche is reputed for the depth of its expertise in the trade and retail industries and is active in merger control and state aid work. At the helm of the practice is Svein Terje Tveit, who acts on high-profile investigations, litigation, merger control work and complex compliance mandates, with the ’ability to integrate commercial considerations with legal expertise’. A seasoned competition practitioner, Stein Ove Solberg has a proven track record in complex merger control mandates within the trade and retail industries. At associate level, Magnus Krohn Viddal takes point on merger control mandates and competition regulation issues.
Testimonials
Collated independently by Legal 500 research team.
‘Svein Terje Tveit is an excellent lawyer. He is highly creative and manages to find legal strategies which create star-struck moments with his clients. He is always available and builds trust with his clients fast.’
‘This legal practice is unique in its specialised expertise in competition law, providing highly tailored advice on antitrust issues, mergers and acquisitions, and market regulation.’
‘Svein Terje Tveit stands out for his exceptional ability to understand the broader business context in which his clients operate. Tveit’s ability to integrate commercial considerations with legal expertise sets him apart.’
‘The team has invested and continues to invest in understanding our business.’
‘Their great knowledge of our business, in particular Stein Ove Solberg's knowledge, makes them an obvious choice for both day-to-day clarifications as well as complex matters.’
‘Lean teams and hands-on approach. Good market insight and commercial mindset.’
‘We have had the pleasure of working with the EU and competition team for several years and have been consistently impressed by their expertise and commercial understanding.’
‘We would particularly mention Stein Ove Solberg and Svein Terje Tvedt, who are specialists in competition law and procurement.’
Key clients
- Fitness Group Nordic (EVO Fitness)
- Family Fitness
- Drøbak Yoga Studio
- TINE SA
- Eviny Group
- ERGO International AG
- Bunge
- Certas Energy Fuels AS
- The Norwegian Competition Authority
Work highlights
- Represented three private fitness groups, and the Business Federation Virke, before the Court of Appeal in a state aid damages case.
- Assisting TINE SA as plaintiff in private antitrust litigation against the truck manufacturers.
- Acted as legal agent for Eviny in the litigation against EFTA Surveillance Authority (ESA) challenging ESAs decision No 16122 COL on aid in relation to the streetlighting infrastructure in Bergen.
Lawyers

Practice head
The lawyer(s) leading their teams.
Svein Terje Tveit