Anette Sainio

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.

20.10.2026

Move Energy – Combination of 3North Partners and Steady Energy and related private placement and IPO

We advised Move Energy as an investor in connection with the combination of 3North Partners Plc and Steady Energy Oy and the related private placement and initial public offering of the combined company on Nasdaq First North Growth Market Finland. In connection with the transaction, 3North Partners received approximately EUR 69.8 million in investor commitments from a group of institutional and other investors, including Move Energy, to fund the combined company. Steady Energy is a Finnish nuclear technology company developing a new generation of small modular reactors (SMRs) particularly suited for district heating. Its LDR-50 reactor is designed to provide cities and utilities with a scalable and low-carbon alternative to combustion-based heat production.

19.10.2026

Jolt Capital and Tesi – Investment in VEV

We advised Jolt Capital and Tesi in connection with their investment in VEV, a leading provider of commercial fleet electrification solutions. The investment, led by Jolt Capital with Tesi as co-investor, will support VEV’s next phase of growth and expansion across Europe. As part of the transaction, VEV became an independent company following the acquisition of Vitol’s stake in the business. Founded by Vitol, VEV provides integrated fleet electrification solutions combining fleet strategy, charging infrastructure, energy supply and operational services. Through its VEV IQ platform, the company supports more than 6,000 commercial electric vehicles across Europe and has been deployed across more than 600 sites spanning the transport, logistics and waste sectors. Jolt Capital is a private equity firm focused on growth investments in European deeptech companies. Tesi is a Finnish state-owned investment company that promotes Finnish business and economic growth through investments. We advised Jolt Capital and Tesi on the equity financing and structuring aspects of the transaction. International law firm Goodwin advised the investors on the acquisition of VEV.

10.9.2026

Kiwa – Acquisition of Sertio

We advised Kiwa in its acquisition of Sertio Oy, a Finnish notified body designated by the authority in accordance with the EU Regulation on in vitro diagnostic medical devices (IVDR). Sertio provides conformity assessment services in accordance with IVDR. Kiwa is one of the world’s leading testing, inspection, and certification companies, operating in over 35 countries.

7.5.2026

Aurevia and Labquality – Strategic reorganisation

We advised Aurevia Oy, a portfolio company of French private equity sponsor Mérieux Equity Partners, in a strategic reorganisation that involved splitting Aurevia and its parent companies into two independent groups of companies and reorganisation of its existing debt-financing arrangements. Following the reorganisation, the newly formed Aurevia continues as a leading provider of Contract Research Organization (CRO) and Quality Assurance and Regulatory Affairs (QARA) services, while the newly formed Labquality focuses on delivering External Quality Assessment (EQA) services. Aurevia serves operators in the medical devices, in vitro diagnostics and pharmaceutical sectors. Labquality’s customers include clinical laboratories and social and healthcare organisations. The reorganisation positions Aurevia and Labquality to allocate investments more effectively, accelerate growth within their respective customer segments, and respond to evolving market and client needs. The transaction was implemented through multiple parallel demergers and required comprehensive legal and tax structuring across several jurisdictions. Our team supported Aurevia throughout the planning and implementation phases, covering corporate, tax, employment law, and regulatory matters, as well as the optimisation of each group’s financing structure.

7.4.2026

Ålandsbanken – Consent solicitation process regarding T2 instruments and issue of SEK 350 million AT1 notes

We advised Ålandsbanken Abp in the consent solicitation process regarding its SEK 150,000,000 Tier 2 notes due December 2041 and SEK 200,000,000 Tier 2 notes due March 2043. The terms and conditions of the aforementioned instruments were amended by removing the write-down mechanisms in the consent solicitation process. In addition, we advised Ålandsbanken Abp on the issue of SEK 350 million Additional Tier 1 notes. The notes bear floating interest at the rate of STIBOR three months plus a margin of 3.35 per cent per annum. The AT1 notes were issued on 20 November 2025, and admitted to trading on the official list of Nasdaq Helsinki Ltd. The instrument has no maturity date and qualifies as Additional Tier 1 capital in accordance with the EU Capital Requirements Regulation. The issue strengthens Ålandsbanken’s capital structure by taking advantage of favourable market conditions.

10.12.2025

General Catalyst – ICEYE’s EUR 150 Million Series E Funding Round

We advised General Catalyst as lead investor on ICEYE’s EUR 150 million series E funding round, valuing the company at EUR 2.4 billion. ICEYE is the world leader in synthetic aperture radar (SAR) satellite systems and operates the largest SAR constellation globally. Its technology delivers objective, near real-time Earth observation in any weather or light conditions, enabling governments and institutions to manage risks and respond faster. General Catalyst is a global investment and transformation company, partnering with leading entrepreneurs to build toward global resiliency and applied AI. Its portfolio includes companies such as Airbnb, Snap, Stripe, Mistral AI, Hubspot, Anduril, Helsing and Legora. We advised General Catalyst on this transaction in collaboration with the US law firm Goodwin.

8.12.2025

Aker Arctic Technology – Acquisition of Bluetech Finland

We advised Aker Arctic Technology Inc, a company specialised in icebreaker design, in its acquisition of Bluetech Finland Ltd. Under the signed agreement, Aker Arctic and Bluetech transferred to the ownership of Arctic Marine Technology Group Oy, an entity established for the purpose of owning the companies. Arctic Marine Technology Group is owned by Finnish Industry Investment (Tesi) and ABB, the current shareholders of Aker Arctic. The completion of the transaction required the approval of the Finnish Ministry of Economic Affairs and Employment and the fulfilment of other customary closing conditions. Aker Arctic Technology Inc is a private company specialising in the technology development, design, engineering, special products, consulting and testing services for ice-going vessels and icebreakers. Bluetech Finland Ltd specialises in cruise, ro-pax and cargo ship design, offering engineering services for ship owners, shipyards and marine suppliers.

26.6.2025

Verne Global – Data centre project in Mäntsälä

We are assisting Verne Global Ltd, the leading provider of sustainably powered HPC data centres in the Nordics, in developing a data centre in Mäntsälä, Finland. We advised Verne in acquiring the real estate company managing the Mäntsälä site, as well as in the subsequent acquisition of the site itself. Our assistance extends beyond real estate transactions to include permitting and tax-related matters. Additionally, we advise Verne on grid connection and electricity supply matters. The acquisition of the project site in Mäntsälä marks Verne’s fourth data centre in Finland, reinforcing its position as a leader in sustainable and scalable data centre solutions. The Mäntsälä campus, spanning 10 hectares and located just a 40-minute drive from Helsinki-Vantaa International Airport, will initially offer a capacity of 70 MW. The facility is designed to support data-intensive enterprises and AI innovators running HPC, machine learning, and other high-intensity workloads, all while operating exclusively on renewable energy. Verne’s new facility will adhere to the company’s best practice design principles, focusing on maximizing efficiency and minimizing environmental impact. The campus will be powered entirely by renewable energy sources, and waste heat generated by the data center will be utilized for local community heating projects. The company is working closely with the Mäntsälä Municipality to ensure the new facility benefits the local area, including plans to harness waste heat for district heating. Construction of Verne’s Mäntsälä data centre is set to begin in mid-2025 and is expected to take two years to complete. This expansion is a strategic move in Verne’s long-term plan to build out its sustainably powered data centre platform, which was acquired by Ardian, a world-leading private investment house, in early 2024. Ardian has already invested over EUR 1.6 billion in the Nordics, focusing on energy transition and digital infrastructure projects, and is working with Verne to drive sustainable growth across the region. Read Verne Global’s press release.

20.2.2025

Verne Global – Data center expansion in Helsinki region

We are assisting Verne Global Ltd, the leading provider of sustainably powered HPC data centers in the Nordics, in expanding a data center in Helsinki region, Finland. In the autumn of 2024, we acted as Verne’s advisor in acquiring the land at its existing Helsinki data center campus, securing room for future expansion. In addition to real estate development, our advice covers permitting and construction related legal matters. The expansion marks another milestone in Verne’s ambitious growth strategy for the Nordics, following the recent announcement of its new facility to be built in Mäntsälä, Finland. The land was acquired from Onvest, a family-owned company with a long history in the region. The site’s strategic location provides excellent connectivity to power and fibre networks, proximity to Helsinki Airport, and easy access to the city centre – making it ideal for organisations across industries looking for reliable, accessible, and well-connected facilities. Verne plans to develop the site further, leveraging its 70MW capacity to meet the increasing demand for sustainable, high-performance compute infrastructure. Designed with high-density compute in mind, the planned expansion will include two new buildings fully equipped to meet the technical requirements of AI, HPC, and other intensive workloads. Verne remains committed to sustainability, with the Helsinki campus running on 100% renewable energy. Waste heat generated by the data center is repurposed through a direct connection to the local district heating network. All new facilities will be built to support liquid cooling, enabling efficient management of the high heat levels generated by AI and other intensive compute workloads. Additionally, Verne uses renewable diesel for its backup power generators in Finland, reducing greenhouse gas emissions from the generators by an average of 90%. News: Verne expands Helsinki data center campus with strategic site acquisition. Read Verne Global’s press release.

20.2.2025

City of Pori – Sale of 49% stake in Pori Energia to Polhem Infra

Castrén & Snellman is acting as the legal advisor to the City of Pori in its sale of a 49% stake in Pori Energia to Polhem Infra. Pori Energia, a multi-utility company, operates in various sectors including district heating, electricity distribution, and electricity generation through CHP and renewable sources. The company also provides wind power services and industrial energy solutions in the Satakunta region. This strategic partnership between the City of Pori and Polhem Infra aims to enhance Pori Energia’s financial stability and investment capabilities, enabling the company to further its efforts in the energy transition and continue delivering high-quality energy services to its customers. Polhem Infra, owned by Swedish state pension funds, focuses on investments in critical infrastructure, including renewable electricity generation, energy storage, energy distribution, digital infrastructure, and transport infrastructure. The transaction values Pori Energia at EUR 905 million.

31.1.2025

Oomi – Transfer of KSS Energia’s electricity sales contracts for consumer and business customers to Oomi

We are advising Oomi Oy in a business transaction whereby KSS Energia Oy’s consumer and business customers in the retail sale of electricity will be transferred to Oomi. The transfer is scheduled to take place in March 2025. The arrangement requires approval from the Finnish Competition and Consumer Authority. Oomi Oy is one of the largest energy service companies and electricity sellers in Finland. The arrangement is a result of the recent development of the electricity market and Oomi’s strategy, which aims to offer customers a seamless and improved digital customer experience.

20.12.2024

BHP – Alliance agreement with Kingsrose Mining Limited

We acted as the Finnish legal advisor for BHP in connection with an exploration alliance agreement entered into between BHP and Kingsrose Mining Limited under which BHP (through a wholly owned subsidiary) will provide funding for regional mineral exploration across areas of interest in Finland. As part of the arrangement announced on 22 May 2024, BHP and Kingsrose entered into two exploration alliance agreements, focusing on nickel and copper exploration in specified regions in Finland and Norway. In Finland, the alliance agreement covers Kingsrose’s four exploration reservations at the Central Finland project in the Kotalahti Nickel Belt, a 400 kilometre long greenstone belt which hosts the past producing Hitura, Kotalahti and Enonkoski nickel mines. The alliances follow from Kingsrose’s successful participation in the BHP Xplor program, a global accelerator program targeting innovative, early-stage mineral exploration companies to find the critical resources necessary to drive the energy transition. BHP is the largest mining company in the world by market capitalisation, producing essential commodities through its assets, including iron ore, metallurgical coal, copper and nickel, and moving into potash.

4.7.2024

BYG4Lab and Keensight Capital – Acquisition of Finbiosoft

We advised BYG4Lab, a portfolio company of the European growth buyout investor Keensight Capital, on its acquisition of Finbiosoft Oy, an innovative software company founded in 2011 with a mission to help laboratories reach higher quality and better efficiency. Founded in 1982, BYG4lab is a leading software company specialised in data management solutions for medical laboratories. The company is headquartered in France and employs nearly 110 people, of which approximately 40% are in R&D. Keensight Capital is a European growth buyout investor with deep expertise in technology and healthcare. Keensight Capital partners with the management teams of fast growing and profitable companies providing capital, strategic guidance and operational support.

14.3.2024

Keensight Capital – Combination of Biovian and 3P Biopharmaceuticals

We advised Keensight Capital on the Finnish law aspects of the combination of Biovian and 3P Biopharmaceuticals, two leading biologics contract development and manufacturing organisations (CDMOs) backed by Keensight Capital, to establish 3PBIOVIAN, a new pan-European leader in its field. The combined group will offer unparalleled end-to-end development and manufacturing services for all protein expression systems and viral vectors, both for drug substance and drug product, from preclinical to clinical development and commercial phases. With over 500 professionals, manufacturing sites in Pamplona-Noáin (Spain) and Turku (Finland) and its commercial office in Boston (USA), 3PBIOVIAN will become one of the main independent European bio-CDMOs. We advised Keensight Capital alongside Paul Hastings, Keensight Capital’s lead legal counsel in the transaction, and Strelia and Garrigues, who, respectively, advised Keensight Capital on Luxembourgian and Spanish legal aspects of the combination.

6.2.2024

Biovian – Debt refinancing initiative to support GeneCity expansion

We advised Biovian Oy, a Finnish company, in a debt refinancing initiative and securing a new funding package with Eurazeo, a French investment company, to support GeneCity facility expansion. The package will be used to refinance existing debt and to finance investment in GeneCity. The GeneCity facility will house cutting-edge equipment and advanced technologies to support the development, manufacturing, and testing of ATMP (Advanced Therapy Medicinal Products). It will also feature dedicated Class A to D cleanroom areas for bulk drug substances as well as final drug product manufacture. The new viral vector facility building has been started in the autumn of 2023 and the facility is expected to be ready in 2025. The new funding package is an important milestone in Biovian’s growth journey and will support Biovian in continuing its strong organic growth. The GeneCity expansion is a strategic move aimed at meeting the growing demand for high-quality biopharmaceutical manufacturing services and further solidifying Biovian’s position as a trusted partner in the biopharmaceutical industry.

17.1.2024

Remondis – Acquisition of all the shares in Delete Group

We acted as the lead counsel to REMONDIS Group and REMONDIS Maintenance & Services International GmbH in a cross-border acquisition of all the shares in Delete Group Oyj from its shareholders, including Axcel, a Nordic private equity firm. The redemption of all Delete Group’s outstanding senior secured notes was also carried out in connection with the transaction. The acquisition complements REMONDIS Maintenance & Services’ existing industrial cleaning business and marks the entry of the REMONDIS Group to the Finnish market. As a result of the transaction, Delete Group became the third industrial cleaning services company in the REMONDIS Group, alongside BUCHEN Industrial Services and REYM. Operating in Finland and Sweden, Delete Group is one of the leading providers of high-quality industrial cleaning services. It employs approximately 675 professionals in 29 locations. The sale and purchase agreement was signed in May 2023. The transaction was notified to the competition authorities in Finland and Sweden. We assisted REMONDIS in notifying the Finnish Competition and Consumer Authority. Mannheimer Swartling advised REMONDIS in matters under the laws of Sweden. REMONDIS Maintenance & Services belongs to the REMONDIS Group, one of the world’s largest recycling, service and water companies. REMONDIS employs more than 40,000 employees all around the globe in over 30 countries.

5.12.2023

Excelerate Energy – Chartering an FSRU to Finland

We advised Excelerate Energy on the conclusion of a lease agreement with Gasgrid Finland Oy for the Floating Storage and Regasification Unit (FSRU) Exemplar. The Inkoo LNG terminal project will have a significant impact on securing the supply of gas to Finland and Estonia as imports of pipeline gas from Russia cease. The Exemplar is the first FSRU in Finland and the Inkoo LNG terminal project is legally unique. Moreover, the project, which is critical for Finland’s and the Baltics’ gas supply, was completed in an exceptionally short timeframe. Our experts assisted the company in a wide range of areas including contracts, energy legislation, licensing, labour law, taxation and structuring.

9.6.2023

Foreign special investment fund – Special investment fund with one direct unitholder deemed tax exempt for income tax purposes in Finland

We advised a German investment management firm in a tax dispute concerning the tax treatment of a German investment fund investing mainly in real estate. The Helsinki Administrative Court ruled the matter in our favour and stated that the fund must be considered as tax exempt for income tax purposes in Finland. The tax dispute concerned the taxation of the income that a German special investment fund investing in Finnish real estate received from Finland. The fund had only one direct unitholder, but it was part of a larger investment structure that effectively involved the co-investment of assets of a large number of individuals and the diversification of investments, including Finnish real estate. The tax dispute concerned the Finnish Income Tax Act’s provision on the tax exemption of investment funds. The Finnish Income Tax Act includes a tax exemption provision that, under certain conditions, exempts domestic and foreign investment funds and special investment funds from income tax in Finland at the fund level. Said tax exemption provision became effective in tax year 2020 and has since caused challenging interpretation differences with the tax authorities as well as several tax disputes. The CJEU has issued a preliminary ruling on one aspect of the Finnish tax exemption provision, and the Finnish Supreme Administrative Court has recently issued rulings on the tax treatment of investment funds. The legal question under dispute has raised a lot of academic debate over the past years. The domestic provisions and their application with respect to foreign investors have proven to be problematic from the perspective of the EU fundamental freedoms. We submitted an advance ruling application to the Tax Administration to confirm that, despite having only one direct unitholder, the German fund is treated as tax exempt for income tax purposes in Finland, because it meets the profit distribution requirement set out in the legislation. The Tax Administration issued a negative ruling to the fund and deemed that the fund cannot be treated as tax exempt for income tax purposes in Finland. We successfully assisted with appealing the advance ruling decision to the Helsinki Administrative Court, which ruled in our favour and stated that the fund must be considered as tax exempt for income tax purposes in Finland. The decision of the Helsinki Administrative Court became final in May 2023.

25.5.2023

Samla Capital – Luxury hotel project The Hotel Maria

We advise Samla Capital in the construction and development of The Hotel Maria and the related financing arrangement. The Hotel Maria is a first-class luxury hotel located in southern Helsinki that will open its doors at the end of 2023. The Samla Hotels fund (SC Hotels I Ky), managed by Samla Capital, will provide the investment required for the hotel. The investment budget is around EUR 116 million. The Hotel Maria will open as a member of Preferred Hotels & Resorts’ prestigious Legend Collection. This will be the brand’s first Legend hotel in Finland. The Hotel Maria consists of four buildings situated in a historic venue, and it aims to offer its customers an exceptional and modern luxury hotel experience.

13.1.2023

Vattenfall – First large scale offshore wind farm in Finland

We advised Vattenfall in an arrangement whereby Vattenfall and Metsähallitus agreed on the development and construction of Finland’s first offshore wind farm in the open sea area. The offshore wind farm, with a planned nominal capacity of 1.3 GW, is planned to be constructed approximately 15 kilometres off the coast in the municipality of Korsnäs located in Ostrobothnia. The offshore wind farm is expected to be operational in the early 2030’s, and its annual production is estimated to be approximately 5,000 GWh, corresponding to the annual electricity consumption of more than two million apartment homes or the annual consumption of around 250,000 electricity heated individual houses in Finland. The estimated value of the investment is 2–3 billion euros. Finland has set the goal of being carbon neutral by 2035 and carbon negative soon after that. Metsähallitus plays a key role in achieving this goal given that they are responsible for managing the state-owned land and water areas in Finland. The offshore wind farm also supports Vattenfall’s strategy to reach its goal of enabling fossil-free living within one generation. Vattenfall is a leading European energy company. Vattenfall employs approximately 19,000 people and has operations mainly in Sweden, Germany, the Netherlands, Denmark and the UK. Vattenfall is owned by the Swedish state.

22.12.2022

Merus Power – Listing on First North

We assisted Merus Power Oyj and lead manager Alexander Corporate Finance Oy in Merus Power’s listing on Nasdaq First North Growth Market Finland. The initial public offering consisted of public, institutional and personnel offerings and was significantly oversubscribed. The compan y ies raised gross proceeds of approximately EUR 12 million from the IPO and gained approximately 8,000 new shareholders . The proceeds raised in the offering will support the implementation of Merus Power’s growth strategy. ‘We strongly believe that the energy market transition will lead to renewable energy sources and power quality playing an increasing role in overall power production. Our technological expertise promotes the global transition towards a sustainable and energy-efficient future. Given the feedback we have received, investors also believe that we have an important role to play in the energy market transition’, says Kari Tuomala , Merus Power’s managing director. Trading in the company’s shares began on First North on 8 June 2021. Merus Power Oyj is a technology company established in 2008 that leverages the sustainable energy revolution. Merus Power designs and manufactures innovative electrical power solutions, such energy storage and power quality solutions and services for renewable energy and industry. The company’s scalable technology enables the growth of renewable energy in electrical grids and improves the energy efficiency of society.

8.6.2021

Alexandria – Listing on First North

We advised Alexandria Pankkiiriliike Oyj and financial adviser Oaklins Merasco Oy in Alexandria’s listing on Nasdaq First North Growth Market Finland. The initial public offering consisted of a public, institutional and personnel offering and was oversubscribed multiple times. Alexandria has over 3,200 shareholders after the listing. Alexandria was established in 1996 and has grown over 25 years into one of the largest investment service firms in Finland. The company specialises in high-quality savings and investment solutions. Alexandria’s 250 professional investors serve over 35,000 customers in 30 municipalities.

11.5.2021

Sinch – Acquisition of SAP Digital Interconnect Finnish Operations

We advised Sinch AB (publ), a global leader in cloud communications for mobile customer engagement in the acquisition of SAP’s communications unit SAP Digital Interconnect (SDI) in Finland. Sinch acquired all assets and IP belonging to SDI. SDI offers cloud-based communications products throughout the world. Sinch and SDI share a focus on digital business transformation. Sinch brings businesses and people closer with tools enabling personal engagement. Its cloud communications platform lets businesses reach every mobile phone on the planet, in seconds or less, through voice, video, and SMS services. Sinch is a trusted software provider to mobile operators, and its platform powers business-critical communications for many of the world’s largest companies. Sinch has been profitable and fast-growing since its foundation in 2008. It is headquartered in Stockholm, Sweden, and has local presence in more than 30 countries. Shares are traded at NASDAQ Stockholm. SAP Digital Interconnect (SDI) enables enterprises to cover the ‘last mile’ with their customers and connect businesses, people, and things in the digital economy. This is being done using SMS, e-mail, push notification, and social network channels. SDI provides cloud-based, API-driven engagement services that help mobile network operators, enterprises and developers drive digital transformation with intelligent, interconnected, multichannel engagements. SDI has a strong customer base of blue-chip customers, including over 1,500 enterprise customers and 500 mobile operators, spanning 190 countries.

5.5.2020

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