

Advokatfirmaet Thommessen AS
Client SatisfactionAdvokatfirmaet Thommessen AS is sought out by an impressive roster of clients including suppliers, rig owners, energy companies, and infrastructure operators for contentious and non-contentious work in the offshore space. The practice group is co-led by Pål Lieungh, who advises Norwegian companies undertaking international projects; and Jacob F Bull who takes point on complex development projects. Other key practitioners are Mads Haavardsholm, who heads up the shipping practice and focuses on corporate shipping matters, and Henrik Hagberg, who is a good contact for contentious and non-contentious matters across the industry.
Testimonials
Collated independently by Legal 500 research team.
- ‘One of the most predominant teams in Norway on offshore energy. They have experience going way back, but also have gained and impressive track record in offshore wind, onshore wind, and PV solar.’
- ‘Jacob Bull is standing out as a beacon of talent and trustworthiness. You want this guy on your team at all times, and his younger team to support.’
- 'The most important for us is the relation to Kristine Hyldmo Bjørnvik and her extensive experience with the type of issues we are addressing. Kristine is also excellent in supporting her team to make sure we got the best possible support.’
‘Unique experience within development of complex construction projects within the energy and infrastructure sector.’
‘Alexander Aarthur Stulien is a brilliant lawyer handling mostly construction litigation, but he is also frequently acting as project adviser. He has an impressive ability to understand technical stuff and navigate complex legal matters.’
Key clients
- Equinor ASA
- Myklebust Verft
- DNO International ASA
- Island Offshore/Borgstein
- Enhanced Drilling AS
- ConocoPhillips
- Kongsberg Gruppen
- AS Nymo
- Viken Shipping
- Gdansk Shiprepair Yard "Remontowa" S.A.
- Vard Group AS
- Fearnley Advisors AS/Transportation Recovery Fund
- Apollo Asset Ltd/Hunter Group ASA
- Arne Blystad/OHT ASA
- Qatar Navigation – Milaha
- Econnect Energy AS
- Island Drilling AS
- OHT Alfa Lift AS
- TECO 2030 AS
- Wellesley Petroleum AS
- France Pelagique SAS
- J.D. Irving, Limited / Atlantic Harrier Limited Partnership
- Southern Wind Shipyards (PTY) Limited
- Green Island Shipholding
- Optime Subsea AS
- Pareto Securities ASA
- Vestfrakt Shipping AS
- Vestland Shipping AS
- Seadrill Offshore AS
- WintershallDea
Work highlights
- Assisted Nymo in the contract negotiations and the contract follow-up of three contracts with respectively Aker Solutions, NOV, and Parat.
- Represents the Norwegian Coastal Administration in a dispute against Consto Anlegg Nord AS and Multiconsult AS.
Lawyers

Practice head
The lawyer(s) leading their teams.
Jacob F Bull, Pål Lieungh