Firm Profile > Arntzen de Besche > Oslo, Norway

Arntzen de Besche
PO BOX 2734
0204 OSLO

Banking and finance (including shipping finance) Tier 1

Arntzen de Besche's team is noted for its expertise in the oil and gas sector, handling major production and exploration financing mandates. Other key areas of work for the group encompass aviation financings, real estate financing work and cross-border transactions. The team also provides regulatory and compliance advice to clients including banks, insurers, investment companies and asset managers. Practice head Trond Kildal specialises in debt financing work, reorganisations and refinancings. Siril Visnes, who advises lenders and borrowers on bilateral and syndicated financings, joined from Advokatfirmaet Thommessen AS in mid-2020.

Practice head(s):

Trond Kildal

Other key lawyers:

Karl Rosén; Paul Sveinsson; Vidar Løhre; Siril Visnes


‘I would like to recommend Siril Visnes. Her knowledge and understanding of the banking sector and products are to my experience exceptional. Siril was our external lawyer in a rather complex and innovative transaction, which she guided us through with a steady hand. Quick response, strong communication skills, ability to see connections in complex cases.’

‘Vidar Løhre is very knowledgeable within the sectors that we have used AdeB in and the reason for why they have been chosen.’

Key clients

Swedbank AB

DNB Markets ASA


Sparebank 1 Markets

Scandinavian Airlines System (SAS)

Widerøe’s Flyveselskap AS

Danske Bank A/S

Citibank N.A., London Branch

Altera Shuttle Tankers LLC

Palmarium Group

Fisketransport AS

Frøy Rederi AS

Employment Tier 1

Arntzen de Besche is ‘extremely knowledgeable, efficient and clear in its advice’ to clients, which include both domestic and international players from the technology, entertainment, oil and gas, and public sectors. A particular area of expertise for the team is collective labour matters, frequently advising on collective agreements, negotiating with unions and assisting companies with collective redundancies arising from restructuring or downsizing processes. Practice head Knut-Marius Sture has ‘unique expertise’ in the media and aviation sectors. Håvard Sandnes specialises in transaction-related employment matters, and Christian Backe focuses on pension matters. Sven Iver Steen, Frode Martin Toftevåg, Mira Tengesdal Torstenbø and Ingeborg Moen Borgerud are further key contacts.

Practice head(s):

Knut-Marius Sture

Other key lawyers:

Christan Backe; Sven Iver Steen; Frode Martin Toftevåg; Mira Tengesdal Torstenbø; Ingeborg Moen Borgerud; Håvard Sandnes


‘Christan Backe is excellent – exceptional quality and engagement.’

‘In our experience the labour law team at Arntzen de Besche is very flexible and available for us as a client. They know our business intimately and are able to assist us on short notice.’

‘Broad knowledge base within labour law. Very fast response to all types of questions. Good continuity with employees. Continuous updates on important news within the subject area.’

‘Knut Marius Sture has very broad experience and unique expertise in the field. Very good discussion partner with good and immediate input, with necessary balance in his advice.’

‘Extremely knowledgeable, efficient, clear in their advice and trustworthy. Always there when you need them.’

‘A high level of knowledge within the subject area.’

‘An excellent ability to formulate clear language.’

Key clients

SAS Group

Nordic Entertainment Group

Tesla Norway

Widerøe Flyveselskap AS

Vard Group AS

Petroleum Geo-Services ASA

Lundin Norway

TrønderEnergi AS

Boreal Transport Norge AS

Avinor AS

Thermo Fisher Scientific

EU and competition Tier 1

Arntzen de Besche is 'a leading provider' of EU and competition advice in Norway. Well known for its full-service expertise, the team covers competition work, state aid issues, merger control matters, investigations and cartel cases, and also has a significant track record in competition litigation. The practice has been notably active in assisting clients in the food and forestry industries. Svein Terje Tveit is 'very competent'  in trade and distribution mandates and issues in regulated markets, Stein Ove Solberg is highly regarded for his merger control work, and procurement expert Espen I Bakken is also noted.

Practice head(s):

Stein Ove Solberg; Espen I Bakken; Svein Terje Tveit


‘Always available, very knowledgeable and service minded. Delivery on time and with good quality.’

‘Svein Terje Tvedt is very competent, service minded, easy and pleasant to work with, delivers practical to-the-point legal advice.’

‘They are one of the best Norwegian law firms and have competence and experience in and of the EU market as well. They are good at understanding the customers’ needs.’

‘They are a leading provider of legal advice and assistance in this area. They are a very well-known company in Norway. Espen I. Bakken and his team are skilled at adapting to each individual customer, adapting the message they bring to each individual person or to each individual need.’

Key clients

Shearwater GeoServices Holding AS


The Norwegian Competition Authority

Glommen Mjøsen Skog SA

Hoff SA

Nortura SA

Toyota Norge AS

Widerøes Flyveselskap AS

DCC Energy

Capital markets Tier 2

The capital markets department at Arntzen de Besche handles the full range of matters on both the debt and equity sides, and has extensive experience advising on bond issuances, both Norwegian bonds with foreign issuers and those involving foreign assets as collateral. The practice is particularly strong in the shipping, seafood, oil and gas, technology, finance and real estate sectors. Team lead Marianne Sahl Sveen concentrates on public and international cross-border transactions, and Vidar Løhre is the primary contact for DCM work, while Trond Kildal handles ECM mandates.

Practice head(s):

Marianne Sahl Sveen

Other key lawyers:

Trond Kildal; Vidar Løhre; Henrik Braavold Johansen


‘Competent, always available, creative in negotiations.’

Key clients


Magseis Fairfield ASA

Shearwater Geoservices AS


TrønderEnergi AS


Storm Real Estate ASA

Emas Offshore Limited

Sino Agro Food

Altera Shuttle Tankers

African Petroleum Corporation Limited

Commercial, corporate and M&A Tier 2

The M&A group at Arntzen de Besche advises domestic and international clients across a broad range of industries, with a particularly strong presence in transactions in the technology, oil and gas, energy, construction, fisheries and aquaculture, and life sciences sectors. The department leverages the firm's debt finance, tax and real estate practices, and houses a strong regulatory team. Practice head Marianne Sahl Sveen concentrates on securities law and M&A, with a particular focus on public and international transactions. Per A Dagslet is a key name for cross-border mandates, Per Kristian Ramsland focuses on oil and gas issues, and Lars Horgen Hinze handles asset management and private equity work.

Practice head(s):

Marianne Sahl Sveen

Other key lawyers:

Per Dagslet; Per Kristian Ramsland; Lars Horgen Hinze; Jon Martin Atkinson


‘Very rapid turnaround; ability to plan several steps ahead of the competition without leaving steps uncovered.’

‘Per Dagslet stands out as a differentiator. He has deep knowledge on the subjects, but more than anything he is truly engaged.’

‘Ability to cover all legal requirements. Solid engagement and responsiveness. Commercially sound solutions.’

‘Lars Horgen Hinze – Immediately responsive, and comprehensive knowledge of both transactions and contractual issues as well as securities law. A very safe pair of hands, supporting a transactions team without craving for recognition.’

‘Always responsive and helpful. Combined competence is unique. Each individual is quick to refer to an expert on the area if needed.’

‘Service-minded and commercial-oriented, with the ability to adjust the type of advice to the client’s needs.’

‘A dedicated and strong team.’

Key clients




Shearwater Geophysical


Benchmark Holdings plc


Torghatten ASA


Construction Tier 2

Arntzen de Besche excels in construction work relating to onshore and offshore projects. With geographical coverage nationwide, the team, led by Ole Skeidsvoll Moe in Trondheim and Knud Jacob Knudsen in Oslo, provides advice on planning and building law as well as proposals, tenders and contract negotiations; it also representing clients in disputes. The group also has additional strength in PPP projects, integrated project deliveries and the hospital and healthcare industries. Stian Heimdal is a key contact for developers, contractors and suppliers for procurement matters and contractual issues.

Practice head(s):

Ole Skeidsvoll Moe; Knud Jacob Knudsen

Other key lawyers:

Stian Heimdal; Jon Gresseth


‘Very good insight into subject area and reference matters. Extremely good response and advice in relation to the expected outcome in connection with the solutions achieved by the counterparty.

‘They provide quick and good feedback and have a great understanding of risk. They have also had a great positive impact on the negotiations in which they have participated.’

‘Stian Heimdal is very technically good, and has a unique understanding of the client’s reality, in addition to the law.’

‘Respond quickly, deliver thorough answers, are solution-oriented and show good knowledge of the industry. ’

‘Stian Heimdal has a deep and thorough understanding of every aspect of construction law in our experience so far. Beyond that, Stian has a passion for, and understanding of the industry that allows him to communicate with our organisation in a way that ensures the very best possible outcomes.’

‘What makes this team unique is the combination of efficiency, availability, and their ability to get a complete understanding of the case.’

‘Jon Gresseth is hard-working, honest and personal.’

Key clients

Sykehusbygg HF

Nye Veier AS

Veidekke Entreprenør AS

Borg Havn Eiendom AS

Spordrift AS

Veidekke Eiendom AS

Biokraft AS

Stor-Oslo Eiendom AS

Leif Grimsrud AS

St Olavs Hospital

Norwegian Fishfarming Technologies

Dispute resolution Tier 2

Arntzen de Besche's dispute resolution expertise covers oil and gas claims, professional liability disputes, insurance litigation, contractual mandates, employment disputes, and competition issues. The group has particular strength in oil and gas and construction litigation, and practice head Andreas Nordby has significant strength in the TMT, media, technology and commodity trade sectors. Other key names include the highly active Terje Granvang and Erlend Haaskjold, and Knud Jacob Knudsen, who handles construction and engineering disputes. Insurance specialist Linn Kvade Rannekleiv joined the group in 2020.

Practice head(s):

Andreas Nordby

Other key lawyers:

Terje Granvang; Erlend Haaskjold; Knud Jacob Knudsen; Sven Iver Steen; Linn Kvade Rannekleiv


‘Good Norwegian commercial litigation practice, with knowledge of UK common law (quite useful for UK clients).’

‘Erlend Haaskjold is established and highly experienced.’

‘Very good skills in pension matters.’

‘Sven Iver Steen is top in his area in Norway. The quality in legal reports is top class.’

‘Good and effective composition of the team, with different competence levels fitting into the different activities to be performed.’

‘Terje Granvang: exceptional dedication to the case and his client, very ambitious with an exceptional high-quality standard, brilliant communication and good sense of humour, making it fun to work with him and his team. High credibility.’

‘Very good team with high-level performers and solid commercial experience.’

‘Knud Knudsen is a very good practitioner.’

‘The team seems to be very professional and have a lot of experience.’

‘I am impressed with the way they behaved in court, and the confidence and overview they showed. They are also very nice people.’

Key clients


Gjensidige Forsikring ASA

Vroon Containers B.V.

Lloyds of London

Glastad Farsund AS

Investec Bank plc


Hoff SA


KPMG Norway

Veidekke Entreprenør AS



Insurance Tier 2

Arntzen de Besche fields a full-service insurance practice, which has expertise in D&O insurance and professional liability claims, and acts for clients in the aviation, offshore shipping and oil and gas sectors. The group has handled a variety of high-profile claims for insurers and policyholders, including representing Reinertsen in a bankruptcy-related case. Sven Iver Steen leads the practice and has a focus on the insurance, pension and finance sectors.  Andreas Nordby, who specialises in litigation, and Karl Rosén, who has experience in regulatory matters, are also singled out. Linn Kvade Rannekleiv joined from DLA Piper.

Practice head(s):

Sven Iver Steen

Other key lawyers:

Andreas Nordby; Karl Rosén; Linn Kvade Rannekleiv


‘Arntzen de Besche has the required pension knowledge in combination with legal expertise that is necessary for our cases.’

‘Flexible, hard-working and delivers on time (often with short delivery time frames).’

Key clients

Gjensidige Forsikring

Sparebank 1 Forsikring

Marine Subsea AS’ bankruptcy estate



Lillevold and Partners

If Skadeforsikring

KLP Skadeforsikring AS


Offshore construction and shipbuilding Tier 2

Arntzen de Besche has notable contentious and non-contentious expertise in the oil and gas, aquaculture and fisheries, shipping and shipbuilding sectors. The offshore construction group is spread across the firm's Oslo, Trondheim, and Stavanger offices. Department head Karl Erik Navestad is highly regarded for his knowledge of the oil and gas sector and advises on offshore aquaculture construction projects. Ole Skeidsvoll Moe and Anders Rødland are both key figures in the team.

Practice head(s):

Karl Erik Navestad

Other key lawyers:

Ole Skeidsvoll Moe; Anders Rødland


‘Available, skilled and cooperative team. Very efficient.’

‘Cooperative, clever, quick at learning and understanding, effective and available.’

Key clients

Lundin Norway AS

Altera Infrastructure Production AS


Oil and gas Tier 2

With 'in-depth knowledge of the oil and gas industry', Arntzen de Besche is a key name in the oil exploration and production sector, advising on the full spectrum of related matters including commercial contracts, regulatory issues and corporate transactions. The department has also increased its capital markets offering with the arrival of Per Kristian Ramsland from Kluge Advokatfirma AS in late 2019. Other key names include practice head Karl Erik Navestad, who is experienced in advising oil companies and offshore contractors on development projects, and Rune Omdahl, who is an expert in licensing matters.

Practice head(s):

Karl Erik Navestad

Other key lawyers:

Rune Omdahl; Per Kristian Ramsland


In-depth knowledge of the O&G industry.

Responsive and practical. Arntzen has capabilities in the various legal areas to meet my company’s legal needs. The team is timely in responding and practical in their advice.

Key clients


Instituto Nacional de Petróleo (INP) in Mozambique / Norwegian Petroleum Directorate

Lundin Norway AS

Vår Energi AS

Hess Corporation / Hess Norge

Teekay Corporation /Teekay Offshore Partners


Edge Petroleum

Pandion Energy

Gassco AS

Public procurement Tier 2

Arntzen de Besche’s public procurement department is recognised for its work for suppliers across a broad spectrum of industries, with particular expertise in the healthcare and energy sectors; it also has a strong presence in the newly liberalised railroad sector in Norway. Focusing on contract negotiations, project implementations, final settlement issues and dispute resolution, the team is jointly led by Espen I Bakken, who acts for healthcare and infrastructure operators, competition expert Stein Ove Solberg and Svein Terje Tveit, who is a highly regarded litigator.

Practice head(s):

Espen I. Bakken; Stein Ove Solberg; Svein Terje Tveit


‘High availability.’

‘Espen Bakken is highly appreciated.’

‘Always available, competent and knowledgeable, they deliver practical legal advice on time.’

‘Svein Terje Tvedt is very service minded, pleasant and easy to work with, delivers practical legal advice on time. Is knowledgeable about the industry that clients operate in.’

‘Espen Bakken has strong communication and relationship skills.’

‘They have solid competence within public competitions – good at responding quickly to their customers. They have broad knowledge within the supplier side and the buyer side. They are good at understanding customer’s needs.’

‘Arntzen de Besche, Trondheim has a lengthy track record in public procurement, building strength and trust with their clients. They have longstanding experience as advisers to huge public entities advising on procurement strategies and contracts. The same experience is an advantage for private companies seeking their advice.’

‘Competent and flexible firm that always puts the most relevant team together fast.’

‘The team had a very short response time from the moment we made contact, and they were updated on the case and our needs. They handle cases with the utmost dedication.’

Key clients

Abbott Norge AS

Smith& Nephew Norge AS

Norwegian Bank Investment Management

Nye Veier AS

Sykehusbygg HF

Baxter Norge AS

Nettpartner AS

CSL Behring

Spordrift AS

Real estate Tier 2

Arntzen de Besche's practice combines 'both in-depth legal and commercial knowledge' for domestic and international clients on M&A deals, financing work, project developments and lease agreements. Headed up by transactional expert Hans Henrik Kværne, who also acts as an arbitrator in real estate disputes, the 'very qualified and effective team' is further recommended for private equity investments. Clients appreciate Eilif S Koch's 'laser-sharp focus for seeing both sides to a situation', while Thomas Øslebø focuses on property sales and urban development projects.

Practice head(s):

Hans Henrik Kværne

Other key lawyers:

Eilif S Koch; Thomas Øslebø


The excellent experienced partners coupled with a great bench of upcoming talent makes the team able to solve issues in a very efficient and seamless way.’

Eilif Koch takes issues on board as his own. His legal knowledge is of course unquestionable, but his ability to solve differences in opinion is really second to none. The way he separates the “no-buckling” points from the areas of negotiation is indicative of an excellent lawyer, whose tremendous problem solving capability comes from a ubiquitous understanding of the case in hand, coupled with his laser-sharp focus for seeing both sides to a situation.’

Very qualified and effective team, easy to get hold of and understands the important aspects of a deal.’

The team at AdeB focuses on combining both in-depth legal and commercial knowledge and broader business law aspects. The real estate experts at AdeB are also top business lawyers in general with an impressive overview of tax issues, VAT issues, corporate and financing issues. The team offers great strategic advice which make them great discussions partners. Their broad scope is essential and very valuable for in-house peers.’

Efficient delivery of service; very commercial in approach. Best firm for corporate real estate law in Oslo.’

Eilif Koch is very capable, understands the issues quickly, he is very commercial and delivers the best service in Oslo.’

The team is able to provide high-quality legal advice due to a high level of internal co-operation. The team has deep commercial knowledge combined with experience.’

The team is very competent and is always providing excellent advice in all matters of importance to a real estate company.’

Key clients

Ness, Risan & Partners (“NRP”)

Stor-Oslo Eiendom

Aberdeen Asset Management Norway

Møller Eiendom Norge

Arctic Real Estate Development

Lerka Eiendom

Fagerstad Utvikling

Vika Project Finance

Malling & Co Project Finance

Fearnley Project Finance

Realkapital Investor

Tax Tier 2

Arntzen de Besche focuses on the tax elements of acquisitions and restructurings. The group has a particularly strong offering for clients in the oil and gas, shipping, real estate, banking and finance, and insurance sectors, alongside niche expertise in tax issues associated with aircraft leasing. Both practice heads have considerable experience in tax litigation; Eyvind Sandvik handles large tax treaty and transfer pricing disputes, while Rune Tjomsås Andersen regularly acts in tax and company law matters.

Practice head(s):

Eyvind Sandvik; Rune Tjomsås Andersen

Key clients

Neptune Energy Norge (previously Engie E&P Norge)


Lukoil Overseas North Shelf


ABN Amro Bank


Michael Baker Global Services, LLC (a division of Sallyport Global)

Den Norske Kirke


SAS/SAS Eiendom

Electricity and renewable energy Tier 3

The full-service practice at Arntzen de Besche handles electricity financing mandates, projects, transactions and regulatory work, with a strong profile in handling wind projects and matters for local grid and power companies. Competition law and EU and EEA regulations are particular areas of expertise; competition and M&A specialist Espen Bakken jointly heads up the team with Odd-Harald Berg Wasenden, whose practice encompasses petroleum and environmental law issues.

Practice head(s):

Espen Bakken; Odd-Harald Berg Wasenden


‘Expert knowledge in the field of electricity trading, both physical and financial.’

‘Odd-Harald Wasenden always provides the best expert advice and has a unique insight into the business of physical and financial trading.

‘Unique competence in combining legal and business expertise adding exceptional value for the customers, especially Odd-Harald Wasenden.’

‘Odd-Harald Wasenden is a very professional, dedicated and efficient lawyer.’

Key clients

TrønderEnergi AS

Sarepta Energi AS

Gassco AS

NORWEA – Norwegian Windpower Association

Norsk BioEnergiforening (Norwegian BioEnergy Association)

Enova SF

Nasdaq Oslo AS

Nasdaq Clearing AB

Elkem ASA /Elkem Iceland ehf.

Fishing and aquaculture Tier 3

Anders Dyrseth heads up the practice at Arntzen de Besche, which handles general corporate and transactional work, as well as contentious matters, for clients including fish farming companies, processing companies and hatcheries. The group advises on public regulatory mandates, encompassing outbreak of disease and biomass control matters, and assists with R&D issues and compliance work.

Practice head(s):

Anders Dyrseth


‘Anders Dyrseth is always available and made an effort to know the company and its values. These values are promoted in his arguments and over time have been an influence to how we as a company is perceived from the sector governments.’

Key clients

Norway Royal Salmon ASA



Benchmark Holdings plc

Nordlaks AS


Wilsgård Fiskeoppdrett AS

Norwegian Ministry of Trade, Industries and Fisheries

Midt-Norsk Havbruk AS

Insolvency and corporate recovery Tier 3

Arntzen de Besche is singled out for its debt and corporate restructuring ability, which it combines with expertise in asset recovery litigation to handle work for banks, bondholders and companies. The team acts in insolvency and bankruptcy proceedings, and assists with crisis management issues, financing work, restructurings and debt settlements. Joint practice heads Joar Grimsbu and Trond Kildal are the key names to note. Siril Visnes joined from Advokatfirmaet Thommessen AS in mid-2020.

Practice head(s):

Joar Grimsbu; Trond Kildal

Other key lawyers:

Stein Knut Tonning; Siril Visnes


‘Siril Visnes: excellent cooperation, very good legal advice, very good business understanding and excellent follow-up.’

‘Insolvency and corporate practice on a very high level, with outstanding quality and delivery always on time.’

‘Arntzen de Besche has a unique position as highly competent in corporate restructuring work and bankruptcy proceedings.’

‘Very knowledgeable and service-minded lawyers. Very high level of expertise. I have mostly worked with Joar Grimsbu and Stein Knut Tonning and find them very professional and highly skilled lawyers. They are the city’s best lawyers in their field.’

‘Very proactive team, always ready to swap ideas, and work hard to provide workable solutions.’

Key clients

Reinertsen AS


Sparebank1 SMN

Nyrstar NV

Sør-Trøndelag District Court

Inntrøndelag District Court




Intellectual property Tier 3

Arntzen de Besche is experienced in handling a variety of IP matters, including copyright, patent and trade mark issues as well as the IP aspects of transactions. Practice head Andreas Nordby focuses on IP litigation and arbitration proceedings, particularly in the technology, life sciences and bio-technology sectors. Tommy Dahlen focuses on non-contentious advice and regularly acts for large domestic and international companies on the implementation of IP protection strategies.

Practice head(s):

Andreas Nordby

Other key lawyers:

Tommy Dahlen; Christopher Hestnes


Always respond in a friendly, professional and timely manner.’

Christopher Hestnes is professional, efficient and sticks to timelines. Responds faster than anticipated. High quality!’

The IP team in Arntzen de Besche, Trondheim has first-hand experience as in-house IP lawyers in IP companies. This experience is used in their daily work, which enhances their understanding of both legal and practical issues and challenges their clients may experience.’

Diverse experience with different technologies and IP segments held by Tommy Dahlen enables him to understand and also provide focus on often the most difficult aspects in any IP licence agreement.’

High professional quality on IP, and excellent customer responsiveness.’

Key clients

Shearwater Geo-Services

Baxter International, Inc

Petroleum Geo-Services ASA


Consolis SAS


Benchmark Holdings

Helse Midt-Norge RHF

Bilfinger Industrier AS


Maritime law Tier 3

Arntzen de Besche notably assists global providers of marine services, fish farming clients and shipping companies in transactions, joint ventures and bond issuances as well as development and construction projects. Practice Erlend Solberg is singled out for his shipping and maritime expertise covering matters relating to chartering, ship transactions and shipbuilding contracts.

Practice head(s):

Erlend Solberg


‘Efficient, available, cooperative, constructive and highly skilled team members with great knowledge about the area.’

‘Flexible, efficient, highly competent and always available. Also very constructive and cooperative.’

Key clients

Teekay Corporation

Magseis Fairfield ASA

Eksportkreditt Norge AS


SpareBank 1 SR-Bank ASA

Shearwater Geoservices


BOA Offshore AS/Taubåtkompaniet

Altera Infrastructure

TMT Tier 3

Arntzen de Besche provides TMT advice on a broad range of areas, including IP law, telecoms issues, IT work, marketing law, e-commerce mandates, media work and data privacy issues. Also notable is the practice's broad industry focus. Department head Andreas Nordby specialises in dispute resolution, while Tommy Dahlen is the key name for transactional work. M&A specialist Knut Martinsen joined from an in-house role at the EVRY Group in early 2020.

Practice head(s):

Andreas Nordby

Other key lawyers:

Tommy Dahlen; Knut Martinsen


‘Young and light footed team. Very easy to work with.’

‘Knut Martinsen shows a unique combination of legal, commercial and technical sense, and paired with an extremely hands-on approach. He is ideally suited to advise on all types of TMT matters, including transactions. Having worked from the inside of the business, he understands the line of communication well and gives great value for money.’

Key clients

Baxter International, Inc

Consolis SAS

The SINTEF Foundation (including all divisions and subsidiaries)




Benchmark Holdings

Helse Midt-Norge RHF

Bilfinger Industrier AS

Arntzen de Besche delivers solution-oriented legal services to Norwegian and international businesses, organisations and public authorities. Arntzen de Besche has years of experience in international transactions on behalf of Norwegian companies abroad and foreign companies in Norway. Through the firm’s collaboration with some of the world’s leading law firms, Arntzen de Besche offers clients a well-organised global network of legal experts.

Department Name Email Telephone
Banking and finance Trond Kildal +47 982 94 632
Banking and finance Vidar Løhre +47 988 10 677
Commercial property Hans Henrik Kværne +47 982 94 548
Commercial property Eilif S Koch +47 982 94 534
Construction Knud Jacob Knudsen +47 419 16 582
Construction Jon Gresseth +47 918 40 350
Contracts Stian Fagervold +47 938 91 073
Contracts Ole Skeidsvoll Moe +47 909 51 191
Corporate and M&A Per A Dagslet +47 982 94 582
Corporate and M&A Marianne Lind Sahl +47 908 41 897
Employment Knut-Marius Sture +47 982 94 624
Employment Håvard Sandnes +47 982 94 659
EU/EEA law and competition Stein Ove Solberg +47 982 94 589
EU/EEA law and competition Espen Bakken +47 982 94 651
Fisheries and aquaculture Anders Dyrseth +47 918 33 155
Fisheries and aquaculture Jon Martin Atkinson +47 404 50 516
Litigation and arbitration Terje Granvang +47 982 94 594
Litigation and arbitration Andreas Nordby +47 408 63 813
Oil, gas and energy Karl Erik Navestad +47 982 94 566
Oil, gas and energy Rune Omdahl +47 982 94 655
Regulatory Sven Iver Steen +47 982 94 593
Regulatory Karl Rosén +47 916 97 790
Renewable energy and climate Odd-Harald B. Wasenden +47 900 76 908
Renewable energy and climate Espen Bakken +47 982 94 651
Restructuring and insolvency Trond Kildal +47 982 94 632
Restructuring and insolvency Stein Tonning +47 416 69 411
Shipping and offshore Karl Erik Navestad +47 982 94 566
Shipping and offshore Stian Fagervold +47 938 91 073
Tax and VAT Rune Tjomsås Andersen +47 982 94 587
Tax and VAT Eyvind Sandvik +47 982 94 518
Technology and innovation Andreas Nordby +47 408 63 813
Photo Name Position Profile
 Rune Tjomsås Andersen  photo Rune Tjomsås Andersen Partner. Mr Andersen has special qualifications within tax law and has broad…
Mr Jon Martin Atkinson  photo Mr Jon Martin Atkinson Partner. Mr Atkinson primarily provides legal assistance within the fields of corporate…
Mr Christian Backe  photo Mr Christian Backe Partner. Mr Backe primarily assists Norwegian and International clients with legal advice, dispute…
Mr Espen I. Bakken  photo Mr Espen I. Bakken Partner. Mr Bakken advices numerous Norwegian and international corporates in their running…
 Håvard Bergli  photo Håvard Bergli Partner. Bergli has long experience as an advisor and lawyer on transactions…
Mrs Ingeborg Moen Borgerud  photo Mrs Ingeborg Moen Borgerud Partner. Mrs Borgerud is admitted to the Supreme Court in Norway. Borgerud…
Mr Per A. Dagslet  photo Mr Per A. Dagslet Partner. Dagslet primarily provides legal assistance within the field of stocks and…
Mr Tommy Dahlen  photo Mr Tommy Dahlen Partner. Dahlen primarily works with transactions and general counseling for technology- and…
Mr Anders Dyrseth photo Mr Anders Dyrseth Partner. Anders Dyrseth has wide experience from work within real estate law,…
Mr Stian Fagervold photo Mr Stian Fagervold Partner Fagervold is an experienced litigator and trusted legal advisor, with depths…
Mr Terje Granvang  photo Mr Terje Granvang Partner. Granvang works mainly with litigation, arbitration and other forms of dispute…
Mr Jon Reidar Gresseth  photo Mr Jon Reidar Gresseth Partner. Gresseth has over 25 years’ experience in public procurement and construction.…
Mr Joar Grimsbu  photo Mr Joar Grimsbu Partner. He primarily provides legal assistance within the fields of corporate restructuring,…
Mr Rune Haglund  photo Mr Rune Haglund Partner. Haglund primarily provides legal counseling regarding financial institutions, investment banks and…
Mr Stian Heimdal  photo Mr Stian Heimdal Partner. Mr Heimdal is specialized within construction, and has extensive experience within…
Mr Lars Horgen Hinze  photo Mr Lars Horgen Hinze Partner. Hinze works primarily with M&A, offerings and other equity transactions and…
Mr Rune Njøs Jacobsen  photo Mr Rune Njøs Jacobsen Partner. Njøs Jacobsen has extensive experience as legal advisor for Norwegian and…
Mr Henrik Braavold Johansen photo Mr Henrik Braavold Johansen Partner. Braavold Johansen works primarily with M&A and capital market transactions, as…
Mr Eilif S. Koch  photo Mr Eilif S. Koch Partner. Eilif S. Koch primarily works with commercial real estate. Koch mainly…
 Hans Henrik Kværne  photo Hans Henrik Kværne Partner. Head of Commercial Property department. Mr Kværne primarily provides legal assistance…
 Vidar Løhre  photo Vidar Løhre Partner. Mr Løhre is a banking and debt capital markets lawyer with…
Ms Marianne Lind Sahl photo Ms Marianne Lind Sahl Partner. Head of M&A and Capital Markets department. Ms Sahl specializes in…
Mrs Wenche Maartmann-Moe  photo Mrs Wenche Maartmann-Moe Partner. She has broad experience in the litigation field, and has previously…
Mr Karl Erik Navestad  photo Mr Karl Erik Navestad Partner and head of the firm’s oil, offshore and energy practice, Navestad…
Mr Anders Rødland  photo Mr Anders Rødland Partner and Head of Stavanger office. Rødland mainly advises clients within the…
Mr Linn Kvade Rannekleiv photo Mr Linn Kvade Rannekleiv Partner. Rannekleiv has comprehensive and broad experience within the fields of litigation,…
Mr Karl Rosén  photo Mr Karl Rosén Partner. Rosén assists on finance, business development, regulatory framework, structural matters and…
 Håvard Sandnes  photo Håvard Sandnes Managing Partner. Mr Sandnes primarily provides legal assistance to Norwegian and foreign…
Mr Stein Ove Solberg  photo Mr Stein Ove Solberg Partner. Head of Procurement and Competition Law department. Mr Solberg primarily provides…
Mrs Berit Svensli Solseth photo Mrs Berit Svensli Solseth Partner. Solseth has considerable experience from the restructuring of public sector activities,…
Mr Eivind Landmark Tandrevold  photo Mr Eivind Landmark Tandrevold Landmark Tandrevold is a partner in Arntzen de Besche, where he works…
Mr Frode Martin Toftevåg  photo Mr Frode Martin Toftevåg Partner Toftevåg has comprehensive and broad experience within the full spectrum of…
Mr Stein Knut Tonning  photo Mr Stein Knut Tonning Partner. Tonning possesses over 20 years of experience within his primary fields…
Mrs Mira Tengesdal Torstenbø  photo Mrs Mira Tengesdal Torstenbø Partner. Torstenbø has worked with employment law for the past 11 years…
Mr Svein Terje Tveit photo Mr Svein Terje Tveit Partner. Mr Tveit offers depth of experience in EU/EEA law across a…
Mr Odd-Harald B. Wasenden  photo Mr Odd-Harald B. Wasenden Partner. Wasenden has more than 20 years experience within renewable energy and…
Number of lawyers : approx 140
the Scandinavian languages
Other offices : Stavanger
Other offices : Trondheim


Diversity and inclusion are focus areas in our firm as it benefits our employees as well as our clients. Diverse teams increase innovation and resolve problems in the best way. The recruitment of people with different backgrounds makes us more adaptable to new legal challenges and opportunities as everyone’s unique experience and competence drives value.

Our values are Teamwork, Integrity, Quality and Dedication, and lay the foundation of our work and our working environment. This is reflected in who we are, how we perform our work, who we recruit, our reputation and how we treat each other. We have a long-term perspective on our working environment and it has high priority in our management. We believe motivated and ambitious employees with a good work life balance achieve excellence and creates added value for the client and the company.

Some examples of the programmes we do are:

  • Established a diversity task force – focused on identifying and mitigating risk against equality
  • Established a new working methodology for the diversity task force
  • Public reporting on gender equality, including gender balance (headcount) and equality (salary)
  • Public reporting on methodology and work done to identify risk factors and mitigating these
  • Regular and anonymous reporting on discrimination and harassment in the workforce
  • New recruitment processes to reduce the likelihood of unconscious bias in the screening, interview and selection phase
  • Adjustment of recruitment texts to encourage diversity


  • The firm has since 2016 tripled the number of female partners
  • Achieved gender parity in the associate, lawyer and senior lawyer employee pool
  • Four of eight new partners since 1st January 2020 are female


Through our advocacy we seek balanced solutions that benefit people, the environment and society. We are engaged in a variety of activities that help protect and develop the world we live in. Our strategy and business are based on our four values: teamwork, quality, integrity and commitment. Through our values we support and contribute to social development through various activities.

We want to be a driving force in the green shift and have implemented a number of measures to reduce our carbon footprint.

Climate neutral

In the period 2018 to 2019, we reduced our greenhouse gas emissions by 20% and we work continuously to improve this. We want to do more and have therefore purchased climate quotas from the EU’s climate quota system (EU ETS) which fully compensates for our emissions in 2019 and 2020 – this means we are climate neutral. The EU climate quota system is considered to be the most well-functioning and efficient quota system in the world.

Skift – Climate Business Leaders

Arntzen de Besche is member of the coalition Skift – Climate Business Leaders. Skift is a business-led climate initiative and the mission is to accelerate the transition to a low-carbon economy and to support the Norwegian government in delivering on its national climate commitments by 2030.

UN Global Compact

Arntzen de Besche is one of few Norwegian law firms approved by the UN Global Compact initiative, which means we support the initiative’s ten principles. The initiative encourages businesses worldwide to adopt sustainable and socially responsible policies, and to report on their implementation. More than 8,000 businesses from 145 countries support the initiative.


Within the field of corporte social responsibility, our main partner is Sykehusklovnene, The European Federation of Hospital Clown Organizations, to which we provide financial support and pro-bono legal services. Sykehusklovnene’s aim is that “All children admitted to hospitals will receive visits from hospital clowns”, and they provide positive experiences and a breathing space for children and youngsters in an otherwise difficult period in their lives.

Other initiatives

In 2013, Arntzen de Besche became an Eco-Lighthouse business. We have implemented an environmental policy, which involves systematic measures for our day-to-day business activities.

As part of our CSR efforts, we work pro bono in situations / cases where it is believed that people or organizations have been the victims of injustice.

We regularly arrange exam preparation lectures for law students at the University of Oslo, Bergen and Tromsø.

For many years, our lawyers have held honorary posts and participated actively in non-profits, foundations and law committees.

In 2021, we will move into new office premises in Oslo that are BREEAM-NOR Excellent certified – one of the highest climate certifications.