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M&A and Corporate Law

Thommessen's mergers & acquisition practice has year after year been leading the market. Our full-service M&A practice advises on the whole range of mergers and acquisitions, from private M&A transactions to public M&A transactions. We stay continually at the forefront, in terms of both the number and value of deals.

Mergers and acquisitions are essential to create a healthy and competitive business environment. The buyer gets access to new technology, expertise or a new industrial or geographic market, while the seller can focus on developing its core business or reallocate its investment. Successful transactions create blooming businesses that grow and increase their profitability.

We have expertise in all fields that may be affected by a transaction. We regularly advise on the largest M&A projects in the market, using our proprietary project management model and cutting-edge technology to improve processes and deliver exceptional results to clients.

Thommessen advises large, medium-sized and small companies across all industries, private equity firms, family offices and investment banks. We are involved in strategic assessments, negotiations, closing and implementation of a wide range of domestic and cross-border mergers and acquisitions.

Thommessen is known for its expertise in the field of M&A. The firm is client-focused, provides tailored solutions and leverages cross-team competencies to enhance efficiency in the process. Client
Chambers & Partners, 2025

Rankings

  • 2025 Band 1 Corporate/M&A Chambers & Partners
  • 2025 1st place M&A Kapital's Lawyer Survey
  • 2025 Tier 1 Commercial, Corporate and M&A Legal 500
  • 2024 1st place M&A Prospera
  • 2024 Tier 1 M&A IFLR1000
  • 2022 Norway M&A Legal Advisor of the Year Mergermarket Europe M&A Awards
  • 2021 Norway M&A Legal Advisor of the Year Mergermarket Europe M&A Awards
  • 2020 Norway M&A Legal Advisor of the Year Mergermarket Europe M&A Awards

The team

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