The ‘practical, hands-on and experienced’ team at Advokatfirmaet Thommessen AS provides a market-leading offering with demonstrable strength and depth across several TMT areas, including the tech industry and data protection work. IT sourcing contracts and digital transformation projects feature prominently in the team’s workload, acting primarily for customer-side clients in the private sector. Christopher Sparre-Enger Clausen oversees the team and acts on a broad range of tech and data-related matters, including outsourcing, cloud services, and regulatory compliance work. Espen Werring focuses on digitisation matters, while Eirik W Raanes and Camilla Vislie are the key names for contentious IP mandates. At associate level, Nikolai Rekman and Kjetil Rikardsen handle IT sourcing and tech contracts, while Stian Karlsen is recommended for advisory services.

Legal 500 Editorial commentary

Testimonials

Collated independently by Legal 500 research team.

  • ‘The team is practical, hands-on and experienced.’

  • ‘I think Christopher Clausen is really impressive.’

  • ‘The team knows the business and industry, and they are easy to work with.’

  • ‘Ane Lerheim Mossige has an incisive and pragmatic edge.'

  • ‘Very good knowledge about market practice and excellent legal skills.’

  • ‘Highly qualified, very good business understanding and excellent profile within the industry/sector.’

  • ‘The best firm in Norway based on their many years of experience. They have broad experience with technology contracts and have specific advice to avoid pitfalls in the types of contracts.’

  • ‘Very responsible and competent resource. Stian Karlsen is easy to work with, very professional with regard to advising us and extremely fast, providing what he promises to do.’

Key clients

  • Microsoft Corporation (including its Norwegian subsidiary, Microsoft Norge AS)
  • Samsung Electronics AB
  • AutoStore AS
  • Kahoot! AS
  • Nordea
  • Otovo AS
  • Eika Gruppen
  • Elvia AS
  • Zalaris ASA
  • Casi AS
  • Storebrand
  • Varner AS
  • PatientSky Group AS
  • Dr. Dropin
  • Sparebank1 Gruppen
  • NHST Media Group AS (Dagens Næringsliv)
  • NomVec AS
  • Circle K Norge
  • Å Insite AS (formerly Glitre Energiløsninger)
  • Lyse Energi AS including its subsidiaries Altibox and Smartly
  • Diakonhjemmet Sykehus
  • The Norwegian Shipowners' Mutual War Risk Insurance Association
  • Telenor Maritime AS
  • Vestland Fylkeskommune
  • Wilh. Wilhelmsen Holding ASA
  • Bolt Technology/Bolt Norway
  • Aksio InsureTech AS

Work highlights

  • Advised Nordea on the procurement of services and software to replace its existing core system with a new core system, and adjacent services.
  • Advised AutoStore on a wide range of legal and strategic matters, including contracts, IP matters and data protection.
  • Advised Circle K in connection with its joint venture with Schibsted relating to Elton car charging app.

Lawyers

Leading associates
Leading associates with regular involvement in their team's key work, and recognition from peers or clients as being ones to watch.
Leading partners
The strongest partners in their field, leading on market-leading deals and endorsed by peers and clients alike.

Practice head

The lawyer(s) leading their teams.

Christopher Sparre-Enger Clausen

Other key lawyers

Espen Werring, Nikolai Rekman, Ane Lerheim Mossige, Stian Karlsen, Kjetil Rikardsen, Eirik W Raanes, Camilla Vislie