
Castrén & Snellman is home to one of Finland’s largest dispute resolution teams, known for its expertise in commercial disputes, criminal proceedings, risk management, and pre-dispute matters. The firm excels in international arbitration, particularly in the construction and energy sectors, and regularly handles antitrust damages claims and white-collar crime cases. Anders Forss has longstanding experience in handling significant international construction disputes and co-heads the practice with Marko Hentunen, who takes the lead on energy, antitrust damages and financing disputes; Ilona Karppinen, who focuses on M&A and shareholder disputes; and Eveliina Tammela, who specialises in corporate criminal liability claims and cross-border investigations. Tuomas Lehtinen and Jerker Pitkänen are other key contacts.
Testimonials
Collated independently by Legal 500 research team.
- ‘I know Castrén & Snellman’s dispute teams partner Tuomas Lehtinen very well. He is our trusted adviser.’
- ‘Castrén & Snellman's team has unique and highly professional members alongside their partner Eveliina Tammela.’
- ‘My feedback for Eveliina Tammela/Castrén & Snellman dispute resolution team - She could go above and beyond for her client. She approached every aspect of the case with deep legal knowledge and determination to secure the best possible result. At the same time, she was able to do this exceptionally and to be highly respectful towards all the other parties, especially the judge. I would highly recommend her services.’
- ‘The practice is extremely client-focused, and they deliver an exceptional approach to solving difficult project issues. They offer clear advice which clients can readily understand and direct their course of actions with confidence.’
- ‘The stand-out partner for me is Tuomas Lehtinen. He is an exceptionally experienced practitioner. Jerker Pitkänen - He is an excellent practical lawyer who engages in legal arguments at the finest level of granularity. His attention to detail comes across in his approach to cross-examination of witnesses at arbitration hearings.’
- ‘Anders Forss is a stellar litigator with out-of-the-box thinking and sharp arguments.’
- ‘The team is dynamic and efficient, and the contributions of the partner and the associate lawyers are generally balanced. Communicating with the team is flexible and pleasant, and the preparation for the trial has been effective and systematic.’
- ‘Ilona Karppinen is a brilliant attorney who handles complex cases well and develops an effective litigation strategy. Working with Ilona is pleasant, and her approach to advocacy is efficient yet respectful of the opposing party. She clarifies key themes and explains complex and technical matters to the court understandably.’
Key clients
- BMW AG
- Finnair Plc
- Gasum Ltd
- Google Inc
- Lujatalo Oy
- Meyer Turku Oy and Meyer Werft GmbH & Co. KG
- Metsä Group
- Nordea Bank Finland Plc
- Stora Enso Plc
- Valio Ltd
- The Finnish Composer’s Copyright Society Teosto
- The Republic of Finland
Work highlights
- Represented Gasum Ltd in an arbitration against Gazprom Export.
- Represented Meyer Turku and Meyer Werft in a criminal case regarding trade secret and copyright infringements.
- Represented the Republic of Finland as a respondent in investor-state arbitration proceedings.
Lawyers

Practice head
The lawyer(s) leading their teams.
Anders Forss, Marko Hentunen, Ilona Karppinen, Eveliina Tammela