Department profile
Advokatfirmaet Thommessen AS

Information Technology

Europe Guide 2026 : Norway

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Advokatfirmaet Thommessen AS

Rankings

Chambers Review

Provided by Chambers

Information Technology - Norway

Band 1

What the Team is Known For

Thommessen is widely considered one of Norway's top IT law firms. Large outsourcings and procurements are regularly handled for its clients from the banking, technology and insurance sectors. The team offers strength in IT contract negotiations, including SaaS and master service agreements. GDPR compliance, cybersecurity and international data transfers equally fall within the law firm's excellent offering. Fintech mandates and system implementations constitute further strengths of Thommessen.

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Work Highlights

Provided by Chambers

  • Thommessen advised Sparebank 1 Gruppen on its contract negotiations and subsequent litigation against Tietoevry Banking.

Strengths

Provided by Chambers

  • The team has solid experience and knowledge of our industry and the legal framework.

    Information Technology respondentEurope

  • Thommessen has a combination of in-depth regulatory expertise with strong commercial competencies and business understanding.

    Information Technology respondentEurope

  • Thommessen possesses a deep understanding of the market. This insight allows it to provide advice that is both legally and commercially relevant and aligned with market practice.

    Information Technology respondentEurope

  • Thommessen is very proficient in data protection and privacy law.

    Information Technology respondentEurope

  • Thommessen possesses niche expertise within the technology space.

    Information Technology respondentEurope

Notable Practitioners

Provided by Chambers

  • Espen A Werring
    Espen A Werring

    Espen A Werring

    Espen Werring advises on a broad array of technology mandates from large IT outsourcings and SaaS agreements to IT infrastructure expansion and system implementations.

    • Espen is a really experienced negotiator.

      Information Technology respondentEurope

    • Espen is always available and can provide support in a good way.

      Information Technology respondentEurope

    • He offers swift responses and a good understanding of the industry.

      Information Technology respondentEurope

    • Espen is the steady hand you want to guide you through complex technology deals. He brings clarity, experience, confidence and insight. He is a true strategic partner.

      Information Technology respondentEurope

    • He is always eager to drive the case forward towards a successful closing.

      Information Technology respondentEurope
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  • Christopher Sparre-Enger Clausen
    Christopher Sparre-Enger Clausen

    Christopher Sparre-Enger Clausen

    Christopher Sparre-Enger Clausen is highly active in a variety of IT mandates, including contract negotiations, procurement processes, data protection and cybersecurity matters.

    • His ability to tune into complex situations is what distinguishes him.

      Information Technology respondentEurope

    • He combines strong technical expertise with a practical, solution-oriented approach, ensuring agreements are robust and data protection standards are fully met.

      Information Technology respondentEurope

    • His ability to simplify complex regulatory requirements and deliver clear, actionable advice makes him an invaluable partner for sensitive and high-stakes matters.

      Information Technology respondentEurope
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Ranked Individuals at Advokatfirmaet Thommessen AS (3)

Norway

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