Advokatfirmaet Thommessen AS

Client Satisfaction

Anders Arnkværn

Partner. Mr Anders Arnkværn has long experience within the areas of M&A and Capital Markets and advises on both large-scaled and small transactions. He is continuously ranked by recognised rating agencies among the leading Norwegian lawyers within both M&A and Capital Markets. Mr Arnkværn heads Thommessen's practice area for Private Equity.

Andreas Meidell

Mr Meidell works mainly on commercial insurance claims and coverage issues, such as marine/energy insurance, property and liability insurance, cargo insurance, as well as reinsurance. He is also a frequent litigator and appointed arbitrator in Norwegian and international arbitrations. He is also a member of The Norwegian Maritime Law Association (CMI). Mr Meidell heads Thommessen’s practice area of Insurance.

Audun Stornes

Partner. Audun primarily advises Norwegian and foreign companies within Oil and Gas and within Oil Service. He assists oil companies with a broad variety of regulatory issues relating to the concession system and the joint operating agreement, including necessary contacts and intervention with the authorities including the MPE and other governmental bodies. Furthermore, he assists with contracts, transactions and dispute resolution. He has assisted buyers or sellers in a large number of transactions regarding transfer of participating interest in production licences on the Norwegian continental shelf (including transfer of interests in producing fields) or in the sale of shares in oil companies. Further, he has extensive assistance from dispute resolution and mediation within Oil and Gas and Oil Services and has acted both in capacity as litigator, Arbitrator/Judge or as mediator. Audun has over a long period been highly ranked for his competencies within oil and gas industry in different recognised legal awards.

Baard Bale

Partner. Mr Baard Bale focuses on, and has significant experience with, equity transactions and advises corporate clients, private equity sponsors and leading investment banks in a wide range of M&A transactions and IPOs. He is ranked as one of the leading M&A lawyers in Norway.

Bendik Christoffersen

Mr Christoffersen works with matters concerning renewable energy and focuses on concession law, corporate organisation, M&A, tax and hydro power taxation. He also provides general business law advice to the renewables sector, which he knows really well through his work with all phases of the development of renewable energy projects. Mr Christoffersen is frequently recognised by international rating agencies.

Bjørn Sande Urtegaard

Partner. Bjørn has extensive experience with financing, restructuring and asset based transactions within shipping and the maritime industry. He assists lenders, borrowers and other stakeholders, both locally and internationally. Bjørn also assists on operational activities and contracts within shipping.

Bjørn Christian Lilletvedt Tovsen

2018-current Partner, Oslo office, Thommessen; 2015-2017 Managing Associate, Oslo office, Thommessen; 2012-2014 Senior Associate, Oslo office, Thommessen; 2011 Admitted to the bar; 2007-2012 Associate, Oslo office, Thommessen; 2005-2007 Higher Executive Officer, Legal Unit, Oslo County Tax Office

Camilla Vislie

Mrs Vislie heads Thommessen's IP and Technology practice. She works mainly with patent, trademark and copyright litigation, for clients within different sectors like commerce, technology and media. She has been involved in a number of well-known IP and media cases during the past years, including before the Supreme Court. She has many years experience from the Norwegian Bar Association’s Expert Committee on IP Law, and is frequently used as speaker on IP related issues.

Christian Hals

Partner. Christian works primarily with M&A and securities law within the oil and gas segment. He has broad experience with M&A and equity capital market transactions, and has inter alia assisted several issuers in connection with listings on the Oslo Stock Exchange.

Christian Grüner Sagstad

Head of M&A and Corporate law department, Partner. Mr Christian Grüner Sagstad, has long experience within M&A and equity capital markets transactions, and acts for numerous private equity firms, investment banks, stock exchange listed companies and private companies.

Christopher Borch

Partner. Mr Chris Borch mainly works with purchase and sale, development, leasing, and syndication of commercial property. He also has extensive experience in litigating real estate cases before arbitration tribunals and before the regular courts. International rating agencies rank Mr Borch as an expert in commercial real estate transactions.

Christopher Sparre-Enger Clausen

Partner. Christopher heads Thommessen’s Technology and Data Protection practice group and specialises within M&A, technology and data protection law. He has extensive experience from both domestic and international M&A and IT-projects, and regularly provide clients with legal and strategic advise within a broad range of areas relating to digitalisation and technology, such as data protection, cybersecurity, outsourcing, licensing, cloud computing, software development, as well as IP and regulatory matters pertaining to IT and telecommunications.

Einar Grette

Mr Einar Grette's practice focuses on financing and restructuring in the bank- and bond markets, including national and international loan agreements, syndicated facilities and bond issuances. He acts for banks, trustees, bondholders, investment banks and borrowers/issuers of financial products. Mr Grette is ranked among Norway’s leading lawyers within banking and finance and capital markets by international rating agencies.

Eirik W Raanes

Mr Raanes works primarily with dispute resolution within contract law, construction law, intellectual property law, insurance law and matters concerning corporate law. He acts regularly on behalf of large Norwegian enterprises in litigation procedures before the ordinary courts and in arbitration. Raanes has been heading Thommessen's Bergen office since 2011.

Eivind Sæveraas

Associate Partner. Mr Sæveraas is primarily recognised for his work on several high-profile merger cases, as well as other competition law matters, including cartel cases and litigation. He assists clients in a wide range of industries, including construction, energy, telecommunication, publishing, media, insurance and transportation. He is co-editor and co-writer of the commentary to the Norwegian Competition Act published in 2009.

Eivind J Vesterkjær

Mr Vesterkjær's practice focuses on matters relating to competition law, public procurement and general legal advice to clients in a variety of sectors and industries, including life sciences, shipping and retail. He also does merger control work in connection with mergers, acquisitions and other concentrations. Mr Vesterkjær has for a number of years been ranked among Norway's leading lawyers within his fields of expertise.

Ellen Teresa Heyerdahl

Partner. Mrs Ellen Teresa Heyerdahl has extensive experience with financing. She assists borrowers, lenders and arrangers with bilateral and syndicated facilities, bond loans and debt programs. Her main focus is on financing of vessels, aircrafts and offshore installations, as well as project and acquisition financing.

Ervin Auren

Partner. Mr Ervin Auren works primarly with mergers, acquisitions and capital market transactions, including IPOs, and he assists Norwegian and international clients. Ervin has long experience within M&A and capital markets transactions. He has been lead counsel on several large and complex national and international transactions, and has a special focus on the real estate and renewable energy markets. He is continuously ranked as a leading Norwegian lawyer within M&A by international rating agencies. Mr Auren is the head of Thommessen's transaction department.

Espen Ommedal

Partner.

Espen Werring

Espen is a trusted adviser to organizations developing and implementing their mission-critical digitization strategies. He typically advice the largest organizations in the private sector with their sourcing of services within development, transformation, maintenance and operation of business-critical IT and business processes. He is ranked as one of Norway's leading lawyers within this field in national and international directories.

Even Bratsberg

Partner. Mr Even Bratsberg has twenty years of experience as lawyer in Thommessen and corporate finance director in SEB Enskilda and Pangea Property Partners. Clients praise his legal knowledge and commercial awareness.

Finn Backer-Grøndahl

Partner. Mr Finn Backer-Grøndahl works with both national and international tax law matters. He works, inter alia, on tax issues related to national and international transactions and restructurings. Mr Backer-Grøndahl heads the firm's practice area Tax and Duties.

Gunnar Martinsen

A significant part of Mr Martinsen's work is related to the conditions of the power industry and energy law related litigation. He is ranked as a leading lawyer within his field in national and international rankings. He advises Norwegian and foreign power companies matters concerning energy, water resources and licensing. Mr Martinsen has assisted a number of power companies in connection with acquisitions, disposals, placements, mergers and various restructurings.

Halvor Mansåker

Mr Mansåker works primarily with debt capital market transactions, assisting both managers and issuers. In addition, he works with bank financing, restructurings and M&A.

Hans Haugstad

Mr Hans Haugstad predominantly works with financing transactions and assists both banks/financial institutions, investors and borrowers/issuers. He has been a member of the Norwegian Bar Association's law committee for banking and finance, and he regularly lectures on this topic. He is ranked among Norway’s leading banking and finance lawyers by international rating agencies. He heads the firm's practice area of Debt Financing.

Hans Cappelen Arnesen

Mr Hans Cappelen Arnesen ("Hasse") works primarily with matters concerning M&A, offerings and IPO's, and acts for a various corporate clients, private equity firms and leading investment banks. He is consistently ranked as a leading lawyer in Norway within M&A and equity capital markets by international rating agencies.

Heidi Jorkjend

Partner Heidi works with competition law and marketing law. She has broad experience assisting corporations under investigation by national and international competition law authorities, as well as merger control and general compliance counselling. In addition, she is experienced in marketing law.

Henning Harborg

Mr Harborg assists clients from a wide range of business areas with dispute resolution and litigation in matters concerning contract law, administrative law, property law and bankruptcy law.

Henrik Hagberg

Partner. Mr Henrik Hagberg has broad experience from working with both contentious and non-contentious matters within the entire shipping and offshore industry, inter alia in connection with shipbuilding and offshore construction, sale & purchase and financing of vessels and rigs, including project finance, emergency response and casualty investigation and marine and energy insurance related matters, including insurance cover disputes. Mr Hagberg also has experience from the Norwegian oil and gas industry, in particular with respect to the Norwegian gas export industry.

Jacob F Bull

Mr Bull's work mainly relates to offshore and onshore construction projects within oil & gas, renewables, process and aluminium industry. Jacob has extensive experience from development projects also outside Norway, and his name is often highlighted by international rating agencies.

Jan Brudvik

Mr Brudvik has extensive and varied experience related to transactions, and bank and bond financing for both borrowers and issuers. He also assists during drafting and negotiations of contracts for Norwegian and international clients within the shipbuilding and Oil Service industries. Brudvik also gives advice concerning company, stock exchange and securities law.

Jan J Greve

Mr Greve assists banks and borrowers, and has extensive experience with bilateral and syndicated loans and guarantee facilities within the shipping industry. He also assists shipowners with ship sale and purchase transactions, chartering arrangements, building contracts and other contracts within the shipping industry. Furthermore, Greve works with joint ventures, restructurings, M&A transactions and IPO’s within the shipping industry.

June Snemyr

June Snemyr mainly advises clients within the oil- and gas industry, renewables sector as well as actors within alternative energy sources. She assists clients with energy and infrastructure projects, in regulatory matters, M&A and she regularly acts as legal advisor in commercial negotiations. June has unique experience with CCS projects after having served as acting General Counsel of Northern Lights JV second half 2022. In addition she has substantial experience working with offshore electrification projects, agreements on third party access to existing infrastructure, oil- and gas related M&A, questions under the Norwegian joint operating agreement, as well as infrastructure matters and product sales agreements. Further, she has a particular focus om new energy related industries, such as development of offshore wind projects, battery production and hydrogen projects. After having worked nearly five years as in-house counsel in TotalEnergies, June has in-depth industry knowledge and a practical approach to resolving the various matters with a business understanding our clients value.

Kristine Hyldmo Bjørnvik

Partner. Kristine mainly works with dispute resolution with a particular focus on offshore and construction. She specializes in litigation and arbitration, offshore contracts and construction law. She has broad experience with litigation, mediation and arbitration both in Norway and internationally. Kristine also has in-depth knowledge of the oil- and gas industry.

Kristoffer Hegdahl

Partner. Kristoffer has extensive experience from domestic and cross-border financing transactions, acting for banks and corporates. He also holds experience from bond issues, securitization projects, as well from securities lending and repo/derivative transactions. Kristoffer also works on debt restructuring projects and corporate insolvency. In addition, he teaches in several of these subjects at the University of Oslo.

Lars Eirik Gåseide Røsås

Partner. Mr Lars Eirik Gåseide Røsås advises a number of listed companies regarding Securities Law and Corporate Law issues, in both ongoing advice and in connection with transactions. Through his presence in London, he has a particular responsibility for cross-border advice, plus maintaining and developing Thommessen's international network. Mr Røsås heads Thommessen's London office.

Mads Haavardsholm

Mr Haavardsholm works primarily with contract negotiations and transactions towards clients in the shipping, oil service and oil & gas sectors. He regularly advices companies with charterparty negotiations and disputes, sale and purchase of drilling rigs and vessels, field developments and construction projects, newbuilding and IMR contracts, as well as all types of service and supplier contracts.

Magnus Hauge Greaker

Partner Magnus mainly works with patent, trademark and trade secrets litigation, for clients within life sciences, oil and oil-service and other technology. Magnus' experience also covers marketing law, pharmaceutical regulatory law and administrative law.

Marius Holm Rynning

Partner. Mr Marius Holm Rynning primarily works with tax law and corporate law. He focuses on Norwegian and international tax law issues in connection with transactions, private equity, restructurings and financing. Marius also assists on incentive programs for private equity owned companies, general tax advice and tax disputes.

Mons Alfred Paulsen

Mr Paulsen primarily works with matters concerning tax and duty law as well as fisheries and aquaculture. He assists clients in connection with restructurings. Mr Paulsen heads the firm's practice area Fishery and Aquaculture.

Øyvind Mork Karlsen

Partner Øyvind has long experience within Mergers & Acquisitions, and acts for numerous Norwegian and international private equity and venture capital firms, family offices, founders and private companies in M&A transactions within a broad range of industries.

Pål Lieungh

Mr Lieungh has many years of experience as legal advisor within the offshore, oil & gas and industrial sectors. He also has extensive international experience as an advisor to Norwegian companies dealing with international projects. Mr Lieungh heads the firm's Oil Service practice area.

Reidar Myhre

Associate Partner. In recent years, Mr Myhre has been involved in several major transactions related to sale and purchase of commercial properties and industrial businesses. He regularly holds lectures on property law and insolvency law through courses arranged by the Norwegian Bar Association. He heads Thommessen's practice area of Environment, and is also a member of the practice areas Commercial Property and Insolvency and Restructuring.

Rune Ulriksen Steinsland

Partner. Rune primarily works with transactions, contract law and corporate law. He advises on contractual matters relating to the shipping and oil service industries. Rune also acts as advisor to Norwegian and international clients in connection with M&A and other corporate restructurings.

Siri Teigum

Mrs Teigum acts as an advisor and litigator in procurement matters, and is top ranked within these areas. She also has won major cases before Norwegian courts as well as the EFTA and CJEU courts, and also acts as an arbitrator. She is member of the Complaints Board for Public Procurement (KOFA). Teigum heads Thommessen practice area of EU/EEA and Competition Law.

Solveig Fagerheim Bugge

Partner. Mrs Solveig Fagerheim Bugge has extensive experience with M&A and capital market transactions. She also advises clients on Norwegian corporate and securities law and regulations.

Ståle R Kristiansen

Mr Kristiansen advises several major Norwegian and foreign companies in connection with transactions, restructurings and general issues concerning tax, corporate and accounting law. He also assists clients in tax disputes, both at the administrative level and in Norwegian courts.

Stein Kimsås-Otterbech

Mr Stein Kimsås-Otterbech has extensive experience with matters concerning employment law and as a litigator. He assists Norwegian and international clients on all aspects of employment law with a particular focus on dispute resolution, restructuring and downsizing, hiring and dismissal of employees, and issues related to pensions. Mr Kimsås-Otterbech heads the firm's Employment Law department.

Stig Berge

Partner. Mr Stig Berge is one of Norway's leading lawyers within corporate law. He has long experience with complex M&A transactions as well as smaller transactions. He also litigates cases within corporate law and professional liability.

Svein Aage Valen

Mr Valen has litigated numerous cases before both the public courts and arbitration tribunals. He has been engaged in many extensive and high profiled criminal cases within areas concering white collar crime, tax fraud, environmental crime and corporate penalty cases related to the Working Environment Act. He has broad experience counselling both large, private clients and public entities.

Sverre Tyrhaug

Managing Partner. Mr Sverre Tyrhaug has advised on a number of share issues, IPOs and other capital markets transactions. Prior to being appointed as Managing Partner, he was the head of Thommessen's capital markets group. He is recognised as a leading capital markets lawyer in reputable international rankings. He also has significant experience within M&A, with a particular focus on public M&A. Mr Tyrhaug has been Managing Partner of Thommessen since 2013.

Thomas Abrahamsen

Partner. Thomas is a corporate generalist attorney with substantial transaction experience, in particular within the upstream oil and gas-, oil service-, industrial- and tech sectors. His broad M&A and corporate law practice includes corporate deals, asset transactions, fundraising processes and restructurings. He has been advising E&P companies on a range of issues, including a substantial number of license/asset transactions on the NCS. The last years, Thomas has also been advising tech companies in their growth and exit processes. He has been recognised in international legal rankings, both within corporate/M&A and oil and gas, for a number of years.

Tore Mydske

Mr Mydske advises financial companies with what is considered as regulated activity and the consequences of operating within this field in Norway. He is known to be one of Norway's leading experts within this area, and the clients include banks, insurance companies, investment firms and mutual fund firms. He heads Thommessen practice area dealing with matters concerning financial regulation.

Tron Dalheim

Tron is a recognized employment law adviser to Norwegian and international companies. He has litigated a number of cases concerning labour law and pensions and is admitted to the bar of the Supreme Court. Tron is also the author of the Norwegian Law Commentary on the Working Environment Act and he has written a book on Seamen's Law. He has experience from several industries, including oil and offshore, shipping and aviation. Recently, Tron has worked with restructuring processes, litigation and conflict management within the field of labor law. He was appointed as an expert member of the whistle blowing committee.

Trond Hatland

Mr Hatland has litigated numerous cases on all levels of the Norwegian judicial system, and in arbitration. Furthermore, He has litigated and won cases before the European Court of Human Rights. In addition He is the trusted advisor for both private and public clients and is appointed as litigator for the National Disciplinary Board for lawyers.

Vidar Havsgård

Mr Havsgård started his career in 1994. He mainly deals with matters concerning commercial real estate and construction. He assists clients in all aspects of real estate. He advises builders and contractors on various types of contract conditions and also assists players in the energy industry.

Ylva Gjesdahl Petersen

Ylva works with equity capital market transactions and M&A across various industries, assisting both listed and unlisted companies, investment banks and private equity/venture capital firms. In particular, she has extensive experience with assisting both issuers and managers with IPO processes, private placements and rights issues. Ylva also regularly advises clients on Norwegian corporate and securities laws and regulations.%MCEPASTEBIN%

Legal 500

Our Team

FAQs

Marketing Resources

Newsletters

Contact us