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Thommessen is one of Norway’s leading commercial law firms, with offices in Oslo, Bergen, Stavanger and London. Since our foundation in 1856, we have been closely involved in most of the defining developments in Norwegian business. Our clients are Norwegian and international businesses, in both the private and public sector. We assist businesses that recognize the value of a full-service, modern law firm with the experience, capacity, and culture required to handle complex matters with confidence, efficiency, and the highest quality. For nearly 170 years, we have played a role in shaping Norway. With a long history and strong reputation, our focus remains firmly on the future. Together with our clients, we will continue to contribute to a stronger and more sustainable business community.

Thommessen Questions

The Thommessen annual revenue was $62.6 million in 2026.

Sverre Tyrhaug is the Managing Partner of Thommessen.

384 people are employed at Thommessen.

The NAICS codes for Thommessen are [54111, 541, 5411, 54].

The SIC codes for Thommessen are [8111, 811, 81].

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