For more than 135 years, Castrén & Snellman has helped shape the Finnish business landscape. We are proud of that legacy – of the clients we have supported, the transactions we have enabled, and the legal standards we have helped define.
Building on that strong foundation, our partners came together to look ahead, understand how the market is evolving, and sharpen our focus on creating even greater impact and value for our clients.
Two things guided our work above all else. First, our clients expect strategic support and solutions that advance their business objectives. Second, AI is reshaping the legal profession, creating real opportunities for those willing to move boldly. Our strategy is our answer to both.
Partner and Chair of the Board Anders Forss says.
Backed by a strong full-service platform and leading legal expertise in relevant areas, we have a unique advantage in transactions. With the ambition to be even stronger, we are now sharpening our focus and accelerating the development of our transactional services.
Managing Partner Jarno Tanhuanpää emphasises the importance of acting as a proactive, solution-oriented partner that genuinely understands the clients’ business:
We are placing the client at the centre of everything. In transactions, our clients benefit from a seamless one-team experience, where our best experts across practices work together to deliver the strongest possible outcome for our clients. And we are leading the way in AI – driven not by the technology itself, but because it generates real, tangible value for the people and companies we serve.
All of this has to translate into a lasting advantage for our clients. That is the measure we hold ourselves to.
Our vision for 2030 is clear: to be the most client‑centric law firm in the Nordic region, combining a powerful full-service platform with leading expertise in transactions. We have the expertise, the spirit and the determination to get there.
The future belongs to those who are prepared. Our commitment is to make sure our clients always are.
We are Your Advantage.
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Latest references
Foundation Clinic – Funding Round
We advised Foundation Clinic in connection with its funding round backed by a group of prominent Finnish technology entrepreneurs and investors, including founders behind Supercell and Wolt. Foundation Clinic is a Finnish healthcare company developing a new approach to private healthcare focused on preventive, data-driven and continuous care. The company aims to combine comprehensive health data with ongoing medical care to identify and address health risks at an early stage.
Case published 29.10.2026
Delta Capacity – Project financing of two battery energy storage systems (BESS)
We advised Delta Capacity AG in a project financing of two battery energy storage systems (BESS). The financed projects are among the largest BESS developments in Finland to enter construction with 250 MW / 600 MWh combined capacity. The financing was provided by Société Générale with support from Finnvera. Construction of both projects, located in Lapinlahti and Teuva, has already begun and the commercial operations are targeted to commence in late 2027 with partial tolling agreements already in place for both assets. The project in Lapinlahti is executed in partnership with Covenergo, while the project in Teuva is executed in partnership with Strioga Family Foundation. Delta Capacity is a Swiss developer of utility-scale battery storage systems. The projects strengthen Delta Capacity’s growing Nordic portfolio and support the flexibility of Finland’s electricity system by adding energy storage capacity, enabling production optimization as well as participation in electricity markets and reserve services.
Case published 28.10.2026
Martela Corporation – Directed share issue and combination of share series
We acted as legal adviser to Martela Corporation in its directed share issue, through which Martela raised gross proceeds of approximately EUR 7.2 million to strengthen the company’s financial position and liquidity and to create headroom for continuing the necessary development and efficiency measures. In connection with the directed share issue, Martela’s unlisted series K shares, which carried greater voting rights, were combined with its listed series A shares. Following the combination, the company has only one share series, which is traded on the regulated market maintained by Nasdaq Helsinki Ltd, with each share carrying one vote and otherwise identical rights. Martela is a Nordic leader specialising in user-centric working and learning environments. With over 80 years of experience, Martela creates the best places to work and offers its customers the Martela Lifecycle solutions which combine furniture and related services into a seamless whole.
Case published 27.10.2026
Banyan Software – Acquisition of Carus Ferry
We acted as legal adviser to Banyan Software on its acquisition of Carus Ferry, a Finland-based provider of reservation, check-in and port operations software for ferry and passenger shipping operators. The acquisition further strengthens Banyan Software’s presence in the Nordic region while providing Carus with a long-term partner to support its continued growth and development. Carus was founded in 1998 and is headquartered in Mariehamn on the Åland Islands, Finland. The company develops mission-critical software for ferry, cruise and passenger shipping operators, covering the full passenger journey from booking and ticketing to capacity management, check-in and boarding. Carus also provides port automation, onboard sales systems and business information tools. The company serves approximately 30 operators across four continents and is the largest vendor by customer count in ferry reservation and departure control. Banyan Software is an acquirer and long-term operator of mission-critical software businesses serving specialised industries. Founded in 2016, Banyan follows a buy-and-hold-for-life approach and supports the long-term growth and development of its portfolio companies. Banyan operates more than 130 portfolio companies across North and South America, the United Kingdom, Europe and APAC. Following the acquisition of Carus, Banyan operates three businesses in the Nordic region.
Case published 20.10.2026