Fielding a versatile team experienced across key Norwegian industries, spanning seafood from telecom, Advokatfirmaet Thommessen AS is praised for its 'deep transactional experience'. Practice head Christian Grüner Sagstad has long-standing experience acting for private equity firms, investment banks, and family offices in M&A transactions. Hans Cappelen Arnesen is recommended for his work for private equity firms and investment banks, whereas Anders Arnkværn acts for corporate clients, private equity firms, and investment banks within capital market transactions. Solveig Fagerheim Bugge acts for clients in M&A transactions with additional expertise in securities laws and regulations. Ylva Gjesdahl Petersen is another key name for M&A deals, and Katinka Ranberg combines knowledge in ECM and M&A transactions.

Legal 500 Editorial commentary

Accolades

Client satisfaction: Sector knowledge

Client satisfaction: NPS ®

Testimonials

Collated independently by Legal 500 research team.

‘The team combines deep transactional experience with a highly pragmatic and deal-driven mindset. They are quick to identify key commercial points, focus their advice where it adds real value, and maintain a calm, solutions-oriented approach even under pressure.’
‘Nicolai Julsvoll is a talented advierr with a sharp commercial sense and a clear understanding of client priorities. He is accessible, decisive, and provides balanced, practical advice that helps move transactions forward. The wider team is engaged, attentive, and maintains a consistently high standard of work throughout the process.’
‘Comprehensive one-stop adviser on all relevant capital markets issues, with pre-eminent capabilities in each expert field - negotiations, contracts, regulation, competition, and due diligence.’
‘Hans Cappelen Arnesen- the most highly respected legal adviser in corporate transactions, Anders Arnkvaern - outstanding in negotiations and contract discussions, combining legal and financial issues, Tore Mydske - superior regulatory experience and insight, always up to date on all key issues.'
‘Excellent oversight of all relevant matters, even on truly complex matters. Always available and highly efficient.’
‘We consider Thommessen as strategic business partners rather than strictly legal advisors. They have significant legal expertise, provide their services in a timely manner, and most importantly, can assess the broader picture when offering services.’

Key clients

Altor Equity Partners
Triton Partners
Ferd
HitecVision
Norvestor
Storebrand
Kongsberg Gruppen
EQT
DNB
Bain Capital
Goldman Sachs
Det Norske Veritas Holding

Work highlights

Acted for DNB Bank ASA on its acquisition of Carnegie Investment Bank AB.

Advised Apollo Funds on their acquisition of Hav Energy LNG Holding from Hitec, and thereby becoming owners of a LNG shipping company with 10 LNG new vessels and vessels under construction with long term charterparties.

Advised Triton Partners on its acquisition of MacGregor, a global leader in maritime cargo handling, from its parent company Cargotec Corporation.

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