Firm PROFILE
Advokatfirmaet Thommessen AS
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Advokatfirmaet Thommessen AS

Global 2026

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Rankings

Global

Leading firm in Global 2026

Contributions and articles

6 Global Practice Guides

Overview

Provided by Advokatfirmaet Thommessen AS

  • Chairman: Baard Bale

    Managing Partner: Sverre Tyrhaug

    Number of partners: 75

    Number of other lawyers: Approx. 245

    Languages: Norwegian, English, Swedish, Danish, German, French, Dutch

    Firm Overview:

    Established in 1856, Thommessen is considered to be one of Norway’s leading commercial law firms. The firm has offices in Oslo, Bergen, Stavanger and London. The firm provides advice to Norwegian and international companies as well as organisations in the public and private sectors, ranging from SMEs to large multi-national corporations. Thommessen covers all business related fields of law.

    Main Areas of Practice:

    Thommessen assists businesses with transactions, complex projects and contentious matters in all areas of commercial law. Their robust professional legal expertise is combined with in-depth industry knowledge, and their lawyers stay abreast of trends and developments on an ongoing basis in order to provide advice which facilitates long-term value creation.

    Administrative Sanctions and Criminal Liability

    Asset Management

    Banking & Financing

    Compliance

    Construction

    Consumer Markets

    Crisis Management

    Data Centres

    Data Protection & Cyber Security

    Debt Capital Markets

    Defence and Security

    Dispute Resolution

    Employment

    Equity Capital Markets

    EU/EEA & Competition Law

    Finance Regulation

    FinTech

    Fishery & Aquaculture

    Games, Arts, Music, Entertainment and Sports

    Insolvency & Restructuring

    Insurance

    Intellectual Property & Marketing Law

    International Trade and Customs

    Life Sciences & Health Care

    M&A and Corporate Law

    Maritime and Offshore Emergency Respons

    Oil & Gas

    Oil Service

    Pensions

    Private Equity

    Private Wealth, Inheritance and Family Law

    PropTech

    Public Procurement

    Real Estate

    Renewable Energy & Infrastructure

    Sanctions and Export Control

    Shipping and Offshore

    Sustainability & Climate Risk

    Tax & Duties

    Tech M&A

    Technology & Digitalisation

    The Norwegian Security Act

    Transfer Pricing

    Venture Capital and Growth Equity

    International Work:

    Thommessen represent non-Norwegian businesses in Norway, as well as Norwegian businesses internationally. Thommessen has a London office, supplemented by an extensive international network. Thommessen’s team members have comprehensive international experience, and their lawyers have argued numerous cases before international courts and tribunals. Thommessen is also the Norwegian member of Lex Mundi.

    Innovation:

    Top-of-class project management is a hallmark of the Thommessen approach, and both the firm and their clients experience considerable time savings and improved communication flows in projects where Thommessen’s digital project management solutions are used. Thommessen use a leading tool for interaction and collaboration on their projects and have developed proprietary project management tools. With their own internal digitalisation department at the firm, Thommessen have a short route from idea to product. Teamwork and new forms of collaboration have helped Thommessen establish an innovation culture which they believe has put them on the path towards creating the law firm of the future.

Ranked Offices at Advokatfirmaet Thommessen AS

Provided by Advokatfirmaet Thommessen AS

Norway - Head office

Oslo

Ruseløkkveien 38 , Oslo, Oslo, Norway, 0251, Oslo

Norway

Hordaland

Vestre Strømkaien 7 , Bergen, Hordaland, Norway, 5008, Bergen


Rogaland

Knud Holms gate 8 , Stavanger, Rogaland, Norway, NO-4005, Stavanger

UK

Greater London

Level 19C – Tower 42 25 Old Broad Street , London, Greater London, UK, EC2N 1HQ, London

Ranked Departments at Advokatfirmaet Thommessen AS (9)

Global Market Leaders

Norway

Ranked Individuals at Advokatfirmaet Thommessen AS (25)

Norway

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