Wikborg Rein is a reference point in the market for infringement cases, as well as being an active advisor on merger filings. The firm continues to add clients to its impressive roster, comprised of private businesses and public bodies. Mads Magnussen heads up the competition and procurement practice, taking on investigations, complaints and merger notification work. Deputy head Preben Milde Thorbjørnsen has notable proficiency in merger control cases, where he works for clients from a range of industries. The local offering is well supported by London-based Elin Gildberg Opheim, who has been involved in cartel cases and merger control work. Stuart Stock left the firm in February 2026.
Legal 500 Editorial commentary
Testimonials
Collated independently by Legal 500 research team.
- ‘Great and pleasant team. Easy to work with. Great at follow-on litigation cases and mergers. Profound understanding of competition law and sector knowledge.’
- ‘Preben Milde Thorbjørnsen, Mads Magnussen and Vilde Hordnes are all excellent. They all have experience from the public sector and thus have valuable insight into how the authorities will view any particular competition case. They are also very pleasant to work with.’
- ‘Wikborg Rein’s EU and competition team combines technical strength with commercial pragmatism, delivering advice that is practical, timely, and business-focused. Associates handle complex drafting with efficiency while partners provide sharp strategic input, creating a seamless balance of detail and oversight.'
- 'Their cross-office collaboration and responsiveness set them apart from competitors, ensuring clear, actionable guidance supported by an efficient, transparent, and value-driven approach.’
- ‘I have had the pleasure of working particularly closely with Eivind Stage and Elin Gildberg Opheim, who are all part of Wikborg Rein's competition law team - individuals with a high level of professional expertise, who are available and quick in responding, friendly and collaborative.’
- ‘At all times, you feel like you are the main priority. Great business mindset and friendly. Swift and solid responses.’
Key clients
- Telenor
- Norsk Hydro
- AB Volvo
- Aschehoug
- NorgesGruppen
- Jotun
- Amedia
- Verisure
- Lerøy Seafood Group
- Vygruppen
- Elkem
- Transocean
Work highlights
Defending AB Volvo in relation to claims arising from the trucks cartel case before Norwegian courts.
Advising Lerøy Seafood Group on all aspects of the ongoing European Commission investigation into suspected anti-competitive conduct in the market for Norwegian farm-raised Atlantic salmon and the related class-action litigations around the world.
Representing Telenor in follow-on damages claims made by its competitor, Telia.
Lawyers
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.
Practice head
Mads Magnussen; Preben Milde Thorbjørnsen
Other key lawyers
Elin Gildberg Opheim; Eivind Stage; Vilde Hordnes; Heidi Jorkjend