Arbitration

Arbitration

We offer you Finland’s leading team of arbitration specialists.

We have vast experience of acting as counsel or serving as arbitrators in ad hoc proceedings and under the main institutional rules, including those of the FAI, ICC, LCIA, SCC, DIS, Swiss Chambers and UNCITRAL. When necessary, our litigation team is available in support of arbitration.

Our assignments typically concern disputes related to mergers and acquisitions, energy, IT and telecommunications, construction and engineering, banking and finance, corporate law and securities, insurance, sale of goods as well as distribution and agency agreements. We also regularly advise clients on disputes in jurisdictions other than Finland.

Our arbitration expertise is highly respected by our peers, which is reflected by the positions of trust held by many of our experts.

The Legal 500, Chambers Europe and Chambers Global rank our dispute resolution services as tier 1.

Latest references

We successfully represented a panel of reinsurance companies in an international ad hoc arbitration. The dispute arose out of a reinsurance treaty under the terms of which the reinsurers had reinsured a portfolio of risks underwritten by the cedent. The parties disagreed as to whether the reinsurance provided coverage for a certain loss that had occurred because of the market turmoil caused by the Covid-19 pandemic. The case involved highly complex legal and contractual questions requiring special expertise on reinsurance law and practice. The arbitral tribunal rejected the counterparty’s claims for reinsurance compensation against our clients in full. The amount in dispute was approximately EUR 34 million.
Case published 16.9.2025
We represented a mutual real estate company belonging to a large Finnish group in arbitration proceedings against a construction company. The arbitral tribunal rejected the construction company’s claims in their entirety and ordered the construction company to reimburse our client for the costs of the arbitration proceedings in full. The dispute concerned the contract price under the construction contract, which was agreed to be determined on the basis of our client’s yield requirement and the rent under the lease agreement for the building in question. The parties disagreed on the indexation clause applicable to the rent adjustment and its impact on the contract price.
Case published 22.11.2024
We advised the NATO Innovation Fund as lead investor on Kelluu’s EUR 15 million Series A funding round, with participation from Keen Venture Partners, Gungnir Capital, and Tesi. Kelluu is a Finnish deep tech company operating the world’s largest autonomous airship fleet. We advised NIF on this transaction alongside global law firm Latham & Watkins.
Case published 17.4.2026
Castrén & Snellman advised Nscale, a European AI infrastructure company, in connection with its planned data centre project in Harjavalta, Finland. The facility will be located in the Sievari industrial area. Castrén & Snellman’s advisory role encompassed the negotiation and execution of a site securing and development agreement (SSDA) with Fortum, as well as the preliminary land sale process for the Sievari site with the Town of Harjavalta. Under the SSDA, Fortum supports the advancement of Nscale’s project development, including grid connection design and permitting.
Case published 15.4.2026