Topi Lusenius

Partner, Member of the Finnish Bar

Services

  1. Data & Technology
  2. Strategic Commercial
  3. Outsourcing

Contact details

I am a business-oriented lawyer with extensive industry knowledge of ICT and various commercial arrangements. I am a Partner in our firm’s Data & Technology practice.

I regularly advise domestic and international companies on a wide range of contentious and non-contentious technology and outsourcing related matters, including the procurement and delivery of ICT solutions, cloud, as-a-service offerings, licensing and R&D. I have also served as an advisor in several technology-driven M&A transactions and capital investments.

Prior to joining Castrén & Snellman, I was a Partner at another Finnish law firm. Prior to that, I served as the Lead Counsel for a business division at a leading Nordic ICT corporation, where I was responsible for its legal matters. My in-house background has instilled a results-first approach into my work.

Chambers Europe, Legal 500 and Who’s Who rank me among Finland’s leading legal experts.

Latest references

Lantmännen – Acquisition of Leipurin from Aspo
We advised Lantmännen ek för in its contemplated acquisition of Leipurin from Aspo Plc. Lantmännen is an agricultural cooperative and Northern Europe’s leader in agriculture, machinery, bioenergy and food products. Lantmännen is owned by 17,000 Swedish farmers and has 12,000 employees in over 20 countries. Leipurin is a leading Nordic supplier of bakery ingredients, equipment, and expert services to professional bakeries, confectioneries, and food manufacturers. The company operates across Finland, Sweden, and the Baltic countries with subsidiaries located in the aforementioned countries, providing comprehensive solutions to the baking industry. The closing of the transaction remains subject to regulatory approvals.
Case published 25.8.2025
Oomi  – Expansion into mobile telecommunications
We assisted Oomi Oy in its expansion into the mobile telecommunications market with the launch of Oomi Mobiili, a new MVNO brand. Our work covered the preceding due diligence process as well as structuring and negotiating key partner agreements, laying a solid foundation for Oomi’s entry into the new market. Oomi Mobiili will operate as a virtual mobile network operator, offering customers the option to purchase a mobile subscription together with their electricity contract. The phased launch is set to begin in autumn 2025, with nationwide availability targeted for early 2026. 
Case published 15.8.2025
PwC – Public tender in Kela’s Eepos procurement process
We are proud to have provided legal assistance to PwC in the successful public tendering process for the comprehensive renewal of Kela’s benefits processing systems. Kela is the Social Insurance Institution of Finland, and this project is a significant cornerstone in modernising Finland’s social security infrastructure. PwC was selected as Kela’s strategic partner to implement a comprehensive overhaul of the benefits processing systems, digital services, customer relationship management, and information exchange platforms. The project aims to meet the demands of the future digital environment and enhance customer experience through the adoption of Salesforce technology. The new systems are expected to simplify benefit processes, enhance user experience for both customers, employees and other stakeholders, and ensure adaptability to future legislative changes. Castrén & Snellman provided strategic legal support to PwC throughout its successful bidding process, which was carried out through a competitive negotiated procedure. We extend our warmest congratulations to PwC for their successful bid and look forward to seeing the positive impact of this project on Finland’s social security system.
Case published 24.4.2025
Savings Banks Group – Sale of Sb Life Insurance
We advised the Savings Banks Group on an arrangement whereby the shares in Sp-Henkivakuutus Oy were sold to Henki-Fennia and at the same time the parties agreed on a long-term distribution cooperation for insurance savings and loan protection products. The closing of the transaction remains subject to regulatory approvals. Sb Life Insurance is a domestic life insurance company, established in 2007, offering insurance savings and risk insurance products to private customers and companies. The Savings Banks and Oma Säästöpankki Oyj act as agents for Sp-Life Insurance. Henki-Fennia is a subsidiary of Keskinäinen Vakuutusyhtiö Fennia, specialising in voluntary life, pension and savings insurance.
Case published 11.4.2025
WithSecure  –  Sale of cyber security consulting business
We advised WithSecure Corporation in the sale of its cybersecurity consulting business to Neqst. WithSecure is a global cyber security company (listed on NASDAQ OMX Helsinki). Neqst is a Swedish investment firm, focusing on technology companies. The closing of the transaction remains subject to customary conditions and regulatory approvals.
Case published 24.1.2025
Pharmaca Health Intelligence – Acquisition of PODIUM Connect and PODIUM Visits businesses
We assisted Pharmaca Health Intelligence in its acquisition of Mediaattori Ltd’s PODIUM Connect® and PODIUM Visits businesses. Through the acquisition, Pharmaca Health Intelligence strengthens its extensive service offerings in medical information, data-driven management, and education for both healthcare and pharmaceutical companies. Pharmaca Health Intelligence is a pioneer in digital medical information and a reliable partner for wellbeing services counties, the private healthcare sector and pharmacies. The company invests in the development of technology and service solutions related to pharmaceutical information, also on an international scale.
Case published 5.12.2024
Suomen Aurinkovoima – Financing arrangement to build solar parks
Castrén & Snellman acted as legal advisor to Suomen Aurinkovoima Oy and its owners in a financing tender process and a financing arrangement implemented with Danske Bank to secure financing for the company’s future solar park projects. Suomen Aurinkovoima, established by Oulun Seudun Sähkö, Oulun Energia, Vantaan Energia and Savon Voima, is a company focused on increasing domestic solar power. The company manages solar park projects from planning to implementation and maintenance, and its goal is to build dozens of new solar parks across Finland by 2030.
Case published 22.10.2025
DNB Bank ASA – Lease and development of premises
We advised DNB Bank ASA in its agreement with Fennia Mutual Insurance Company on the development and lease of the premises at Fabianinkatu 8, Helsinki. With the lease agreement, DNB Bank ASA will focus all its Finnish operations at the Fabian 8 office. The other tenants at the renewed premises will be DNB Carnegie Investment Bank AB’s Finnish operations and DNB Auto Finance Oy. In connection with the long-term lease agreement, the parties also agreed on a major renovation project to completely refurbish the premises. The object of lease will be completed in the second half of 2027.
Case published 10.10.2025

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