Bruun & Hjejle offers extensive expertise across a wide range of dispute resolution matters and is frequently sought for Denmark’s largest and most complex disputes. The firm demonstrates strong industry knowledge, particularly in financial services and energy, and is active in commercial disputes, professional liability claims, competition matters, tax disputes, and state aid and public law issues. The team also has a growing track record in cross-border mandates and significant experience in white-collar crime cases. The practice is led by Karsten Kristoffersen, known for his work in banking, finance, capital markets, M&A, and energy disputes. Ole Spiermann is a trusted advisor to Denmark’s leading financial institutions, while Jakob Lentz focuses on professional liability and insurance disputes. Lasse Mikkelsen brings expertise in energy, infrastructure, and management liability disputes. Recently promoted to partner, Josefine Movin Østergaard brings extensive expertise representing Danish and foreign companies in litigation and arbitration with a focus on ESG-related issues and marketing and consumer law.
Testimonials
Collated independently by Legal 500 research team.
‘Johannes Hedegaard gets into the matters extremely well, asks all the relevant questions and has a true interest in grasping the mechanisms of our market.’
‘Josefine Movin Østergaard is an exceptional counsel who goes above and beyond in terms of legal knowledge, persistence and proactiveness.’
‘Jakob Lentz is among the top lawyers in Denmark, with the most in-depth knowledge about audit regulation and professional requirements.’
‘Ole Spiermann and Karsten Kristoffersen possess a very high professional standard, as well as a significant understanding of business.’
‘Strong team that has worked on some of the biggest disputes in Denmark. The team really has their sight on the client's best interests.’
‘The people I have worked with from the team have an understanding of the different skills needed in a dispute case, and use the right subject matter experts when needed instead of trying to move outside of their core competencies.’
‘Karsten Kristoffersen is very knowledgeable and provides an excellent service.’
‘Lasse Mikkelsen and Karsten Kristoffersen are second-to-none in their field and have a unique ability to combine commercial savvy with unparalleled legal skills.’
Key clients
- Danske Bank A/S
- Nordea Bank Abp
- Hesalight A/S in bankruptcy
- Bech-Bruun
- Ørsted A/S
- Jyske Bank
- Jyske Realkredit A/S
- Finans Danmark (The Danish Bankers Association)
- SEB Bank AB (Skandinaviska Enskilda Banken)
- Nykredit and Totalkredit A/S
- Nets A/S
- Alm. Brand Bank A/S
- Codan
- Bios Ambulance Services Danmark A/S in bankruptcy
- Finansiel Stabilitet (The Danish state’s financial unwinding vehicle)
- Risen Energy
- IBM
- Resurs Bank
- CS Wind Corporation
- Nordic Eye K/S
- Confederation of Danish Industry (Dansk Industry)
- Howden insurance brokers
- FSN Capital
- Danish Ministry of Defence
Work highlights
- Assists Jyske Bank A/S in a dispute with the Danish Financial Supervisory Authority and the Special Crime Unit.
- Conducting an investigation on behalf of the Danish Ministry of Defence in relation to the Armed Forces purchase of rocket launcher systems from the Israeli company Elbit at a price of approx. DKK1.7bn.
- Represented Kg BidCo ApS in proceedings before the High Court concerning a damage claim of approx. €87m against the Swedish private equity fund Procuritas, among others, in relation to the fraudulent sale of Danish company Gram Equipment in 2017.
Lawyers

Practice head
The lawyer(s) leading their teams.
Karsten Kristoffersen