Advokatfirmaet Thommessen AS
Client SatisfactionLauded by clients as ‘simply the best’, Advokatfirmaet Thommessen AS continues to act on the full spectrum of EU and competition work, with a ’stellar’ offering that spans antitrust, cartel, merger control, and regulatory state aid mandates. Practice head Heidi Jorkjend has extensive experience advising on investigations and general merger control mandates. Siri Teigum takes point on contentious mandates, complex mergers, and a range of EEA and competition cases before the various European courts. The ‘experienced and highly competent’ Eivind Vesterkjær has a broad practice that spans competition, state aid, and public procurements matters.
Legal 500 Editorial commentary
Testimonials
Collated independently by Legal 500 research team.
‘Thomessen is a stellar law firm; the go-to firm in Norway. Their lawyers are pragmatic, down-to-earth and sharp litigators. They were simply the best.’
'Eivind Vesterkjær is an experienced and highly competent adviser who can be trusted to serve his clients in the best possible way. He is responsive, communicates well with clients and provides practical advice taking relevant business perspectives into account.'
‘Easy-going and highly professional competition practice. The team was swift to familiarise itself and get up to speed on what we needed.’
'Competent, agile, practical approach, responsive.'
‘Heidi Jorkjend has been our main contact. She has an excellent understanding of a very complex legal area and was able to quickly get up to speed. From working with her and her team, it's also clear that she makes an effort to include her associates and ensures that they are given a chance to participate directly with the client in a meaningful manner.’
‘Highly experienced and excellent legal knowledge in EU and competition matters. Siri Teigum has outstanding knowledge of competition law.’
Key clients
- SpareBank 1
- Kongsberg Gruppen
- Veidekke ASA
- Ringnes ASA
- Gyldendal ASA
- Lindum AS
- Eviny AS
- BAMA
- NorgesGruppen ASA
- Circle K
- Mestergruppen
- El-Proffen AS
- Ferd
- Triton Partners
- DAF Trucks N.V. / DAF Trucks Deutschland GmbH
- Lyse AS / Lyse Produksjon AS
- Kahoot! ASA
- Storebrand ASA
- HitecVision
- Peak Invest
- Elkem ASA
- Altor
- Rexel Dévéloppement S.A.S.
- Play Magnus Group
- NTS ASA
- Bluestep Bank
- Danske Bank
- Wintershall Dea
- BW Offshore
- Bane NOR
Work highlights
- Assisting NorgesGruppen ASA in relation to the Norwegian Competition Authority's ongoing investigation of the Norwegian foodstuffs market.
- Advising Gyldendal in connection with the decision of the Norwegian Competition Authority to impose a fine on Norway’s four largest publishing houses and the provider of the database Bokbasen for alleged exchange of future book prices and other competitively sensitive information.
- Assisted Elkem with the competition law aspects of the transaction that transformed its subsidiary Vianode (producer of sustainable battery materials) into a joint venture between Elkem, Norsk Hydro and Altor.
Lawyers
Hall of Fame
The lawyers at the very top of the profession, widely known and respected by peers and clients for their longstanding involvement in market-leading work.
Next Generation Partners
Junior partners with significant recognition from clients and peers in the market and key roles on multiple matters.
Heidi Jorkjend
Advokatfirmaet Thommessen ASPractice head
The lawyer(s) leading their teams.
Heidi Jorkjend