Advokat J. Christian Grevstad established the company in 2024. Advokat Bjørn-Erik Leerberg joined in 2026.
Our advantage is that we have an extensive, concentrated and complementary base of experience from a wide range of industry areas, particularly in offshore and onshore petroleum and energy commercial, operational, resource management and HSE law issues, in addition to CCS and seabed minerals. This is experience that also has transfer value to other businesses.
We have extensive experience with tax law, company law, contractual, regulatory and administrative matters, both between commercial parties and in relation to public authorities. We also have experience in how this is handled between states and within national or multinational groups of companies.
We have broad and deep experience in general corporate tax law, related corporate law issues, international tax law and transfer pricing. We have worked with clients of all sizes, from the largest to the smallest; public enterprises, trade associations, national and international enterprises and small businesses.
This means that we can deliver top-class legal services and advice in a fast and cost-effective manner, – without detours, delegations or extensive and expensive teams, – and regardless of the nature and complexity of the issue.
Chrisitan Grevstad, Attorney at Law
Christian has particularly worked with taxes on extractive industry activities on the Norwegian continental shelf, general corporate taxation and transfer pricing. He has extensive experience, including as assistant director in the Directorate of Taxes and the Ministry of Finance, as external advisor to these tax authorities and permanent member of the Petroleum Tax Board. Furthermore, he has been practicing as lawyer and partner in the law firms Grevstad ANS, PWC TLS and Harboe & Co. He holds an MBA from the University of Bradford and a degree in Business Administration from the Norwegian School of Management (BI). This background is combined with comprehensive experience as external legal advisor to large and small companies, providing him with a thorough commercial understanding of the importance of tax issues and how to approach relevant tax challenges.
Bjørn-Erik Leerberg , Attorney at Law
Bjørn-Erik has considerable experience as senior civil servant with the Ministry of Justice, the Ministry of (Petroleum and) Energy (MPE), as well as the courts. At the MPE, he oversaw petroleum legal affairs in the Oil and Gas Dept. for several years. He previously worked for PwC TLS and in the law firm Simonsen and Simonsen Vogt Wiig AS. In private practice, his work has particularly involved advice and negotiation for private and publicly controlled companies and assisted several public authorities in Norway and abroad. The work has focused on the management and exploitation of non-renewable natural resources at sea, the energy sectors, CCS and cross-border projects. He has published academic articles and taught at master’s and post graduate level, as well as for MBA programs at several universities and colleges, at home and internationally. He has studied at The Hague Academy of International Law at the ICJ, The Hague, the Netherlands, at IMD in Lausanne, Switzerland and at St. Cathrine College, Oxford University, United Kingdom
