Rankings
Awarded leading firm in Global 2026
Ranked Departments:
Ranked Individuals:
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
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
Ranked Individuals
Contributions
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