Your Advantage

Your Advantage

We are a trusted legal advisor in mergers and acquisitions, disputes and other specialised fields of business law. We combine top-tier legal expertise, strategic business savvy and technology to give you a competitive edge.

Latest references

We advise Korona Invest and the other shareholders of Innoflame Oy on the sale of Innoflame to Sponsor Capital. The transaction makes Sponsor Capital the new majority owner of Innoflame. Korona Invest has been a shareholder of Innoflame since 2021 and, together with the other selling shareholders, has over the past five years supported the company’s growth, development and several strategically significant corporate transactions, through which Innoflame has strengthened its position as Finland’s leading product media company. The ownership change is intended to support Innoflame’s next phase of growth, including its ambition to build a significant European product media company with the capability to expand rapidly into new markets. The transaction is conditional to the customary closing conditions such as authority approvals. Innoflame is one of Finland’s leading product media specialists, helping its clients build a unified brand experience by offering the design, sourcing and management of product media as a single integrated service. Korona Invest is a Finnish private equity firm founded in 2006, specialising in buyout and growth investments in domestic small and medium-sized enterprises. It makes both majority and minority investments, structuring each project to suit the company’s growth strategy. 
Case published 27.8.2026
We advised Hopeasalmen Telakka Oy, part of Marina Group, on the acquisitions of Iisiveneily and Porvoon Venekorjaamo. The transactions form part of Marina Group’s expansion into the Finnish marina and boatyard sector, strengthening its position under the Quattro Marine brand. Following the acquisitions, Quattro Marine’s Finnish operations comprise Hopeasalmen Telakka, which operates boatyard facilities in Helsinki’s Mustikkamaa and in Tolkkinen, Porvoo, together with Iisiveneily and Porvoon Venekorjaamo. Marina Group is a Norwegian marina and boatyard consortium owned by the private equity sponsor Norvestor. It has grown rapidly through acquisitions to become the Nordic region’s largest boating services provider, having acquired 24 marinas and boatyards across Norway, Sweden and Finland within roughly a year.
Case published 24.8.2026
We advised Neste as it signed a EUR 250 million 10-year loan with NIB. The loan will finance Neste’s investments related to research and development (R&D) in processing lower-quality feedstocks into high-quality renewable products; as well as the liquefied waste plastics (LWP) investment at Neste’s refinery in Porvoo, Finland. The R&D activities supported by the loan focus on the development of renewable solutions. These include, for example, expanding feedstock capabilities and technologies that enable the processing of new and lower-quality waste and residues into high-quality renewable end products. Part of the financing supports Neste’s liquefied waste plastics investment in Porvoo, related to upgrading low-quality plastic waste into high-quality feedstock at an industrial scale. The investment contributes to advancing circular economy solutions by enabling the use of hard-to-recycle plastic waste as a replacement for virgin fossil raw materials. The unit has an annual capacity to process up to 150,000 tonnes of liquefied waste plastic. Production ramp-up commenced in 2026.
Case published 19.8.2026
We advised Aspo Plc, ESL Shipping Ltd and AtoBatC Shipping AB in relation to finance matters in connection with the demerger of Aspo, by which all the shares in ESL Shipping Ltd held by Aspo, together with the related assets and liabilities, will be transferred to a new independent company to be named ESL Shipping Group Plc. Aspo intends to apply for the shares of ESL Shipping Group to be admitted to trading on the regulated market of Nasdaq Helsinki. It is further intended that Aspo be renamed Telko Group Plc. 
Case published 19.8.2026

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IFLR1000, M&A

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Castrén & Snellman provides pragmatic legal advice without taking any shortcuts. The lawyers are extremely knowledgeable within their legal fields, about the different practice areas and about the Finnish and Nordic market.

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I highly appreciate their solution oriented approach and readiness to discuss not only about legal matters per se but also deal tactics and negotiation points from our viewpoint, and also how things might look at the opposite side of the table.

The Legal 500, M&A

Impressive depth and width of services. Top class energy team, very strong in environmental law. Very responsive, understands customer point of view.

IFLR1000, Project Development

C&S has handled many of the biggest real estate transactions in Finland during the past few years. The quality of the work is impeccable.

The Legal 500, Real Estate

Castrén & Snellman’s team provides a timely service with a flexible, can-do attitude. They are capable of handling complex assignments, and facilitate and drive processes in a comprehensive way.

Chambers Europe, TMT

About us

Decades of supporting our clients’ success have enabled us to grow into a leading law firm of 300 people. We are the forerunners of demanding legal services in mergers and acquisitions, dispute resolution and the full scope of business law. We are based in Helsinki, Finland.

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Sustainability is a goal that we share with our clients. We help our clients succeed in the rapidly changing regulatory framework of ESG and integrate our sustainability knowhow across our full-service offering.

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