Castrén & Snellman’s 2025 Sustainability Report is out today.
29.4.2026
Castrén & Snellman’s 2025 Sustainability Report has been published
The regulatory framework for corporate sustainability is here to stay, and most companies continue to pursue their sustainability commitments. We are here to help them do that.
Whether making sense of evolving ESG regulation, structuring sustainable finance transactions, or advising on responsible business conduct, we help clients navigate the legal dimensions of their sustainability ambitions. In practice, that spans a wide range: CSRD and CSDDD boardroom advice, sustainable finance, ESG due diligence in M&A, value chain obligations, green claims, and many more.
Examples of how we helped our clients drive change in 2025 include advising Metsä Board on a EUR 200 million green bond issuance, Oomi Solar on the sale of a 250-megawatt solar power project portfolio, and GEA on its investment in Solar Foods, a company pioneering a technology for producing protein from CO₂.
We develop our sustainable business practices with a focus on long-term impact.
- In 2025, we strengthened the structure of our sustainability work by introducing internal sustainability KPIs grounded in our double materiality assessment.
- We supported climate innovation by starting a carbon credit partnership with Carbonaide — a Finnish startup that captures CO₂ permanently in concrete — helping to mitigate climate change beyond our value chain.
- Our position as a strategic speaking partner for our clients comes through our people and their skills. We launched an MBA Highlights training programme, developed with Hanken & SSE, and continued company-wide training on AI tools to help us deliver lasting advantage for our clients.
We are proud to have again been recognised as the Scandinavian Law Firm of the Year at the Women in Business Law Awards EMEA and as the most desirable employer in the legal sector in the Universum student survey.
Latest news
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