Wiersholm advises a broad domestic and international client base on the full range of tax matters, including tax due diligence, structuring, and transfer pricing. The team acts across all major sectors, with particularly strong expertise in the energy industry, spanning both fossil fuels and renewable energy. The practice is led by seasoned litigator Andreas Bullen, while other key practitioners include transaction specialist Nicolay Vold and corporate tax expert and litigator Bettina Banoun.
Legal 500 Editorial commentary
Accolades
Client satisfaction: Sector knowledge
Testimonials
Collated independently by Legal 500 research team.
- ‘Highly skilled, focused, and able to condense the case to its core elements. Very easy to work with and compassionate.’
- ‘Good collaboration, and high-skilled team members. Hands-on and timely deliveries.’
- ‘Wiersholm has a special position to attract new tax talent. We have worked with different associates over the years who have all been excellent. They also apply updated technology, which helps solve complex cases.’
- ‘Andreas Bullen is one of Norway's best tax advisors who excels in several tax disciplines.’
- ‘We are pleased to recognize Andreas Bullen of Wiersholm for his outstanding legal expertise and strategic acumen. Andreas played a pivotal role in securing a successful outcome for Orlen in a complex thin capitalization dispute before the Appeal Court in Oslo. His deep understanding of Norwegian and international tax law, particularly in the area of transfer pricing and capital structuring, was instrumental in navigating the intricacies of the case. Andreas combines academic excellence with practical insight—his ability to distill complex legal arguments into compelling advocacy was key to our victory. His calm demeanor, responsiveness, and unwavering commitment to our interests made him a trusted advisor throughout the process. We are grateful for his support and proud to have partnered with him on this landmark matter. ’
- ‘Strong client loyalty and dedication.’
Key clients
- Aktieselskabet Saudefaldene
- DNB Bank ASA
- Elopak ASA
- Equinor ASA
- Equinor Energy AS
- Hydro ASA
- INEOS Tyssedal AS
- Kistefos
- Marceni AS
- Nordea AB (publ)
- Orkla Energi AS
- Pearl Group AS
Work highlights
Represented Orlen Upstream Norway AS (previously PGNiG Upstream Norway AS) before Borgarting Court of Appeals in a lawsuit against the government, represented by the Oil Taxation Office, in a case involving thin capitalisation.
Represented DNB Bank ASA in the Supreme Court in a case involving the interpretation of a rule on limitation on interest deductions.
Represented INEOS Tyssedal AS before the Supreme Court in a case against Ullensvang municipality regarding the property taxation of the company's industrial properties.
Lawyers
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Practice head
Andreas Bullen
Other key lawyers
Nicolay Vold; Bettina Banoun