Henri Immonen

Associate, LL.M.

I advise our clients in a wide variety of domestic and cross-border corporate law assignments. As corporate law forms an essential part of transaction-related assignments, I have been closely involved in mergers and acquisitions and private equity transactions, among others.

Before graduating, I was a trainee at Castrén & Snellman, providing wide-ranging assistance to our transaction teams.

I have a Master of Laws degree from Lund University.

Latest references

We advised A. Ahlström Real Estate Ltd in its acquisition of an office complex in Pasila, Helsinki, from Avain Yhtiöt Oy. The office complex is part of a new block area that will also include three tower blocks. Construction of the block has started in early 2025 and the office building is expected to be completed by the end of 2026. The office building is located in Central Pasila, in the immediate vicinity of the Tripla shopping centre, with excellent transport connections. The office will provide modern and adaptable office space for up to 450 employees. The anchor tenant in the new premises is Avain Yhtiöt. A. Ahlström Real Estate manages the real estate and forest assets of A. Ahlström Oy. Avain Yhtiöt is a Finnish housing provider specialising in developing, constructing, and managing residential properties and housing services. Under the Avain Asunnot brand, Avain Yhtiöt and Avain Asumisoikeus own over 12,000 rental, right-of-occupancy, and service housing units across Finland.
Case published 18.3.2025
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. 
Case published 31.1.2025
We advised a fund managed by Swiss Life Asset Managers Nordic in its acquisition of a logistics property in Hyvinkää from a fund managed by Savills Investment Management. In addition to advising on the transactional aspects, we also advised on the financing of the acquisition as well as in designing an appropriate international acquisition structure and addressing relevant tax implications. The property serves as the central warehouse in Finland for Ahlsell, a leading Nordic technical wholesaler, which has been leasing the property since its construction. The state-of-the-art logistics centre was originally built in 2002 and has undergone several improvement projects over the years. The latest extension, completed in 2024, added around 11,000 square meters of new storage area to the property, bringing the total lettable area to 47,000 square meters. The property has been developed with a strong emphasis on energy efficiency with on-site solar power and renewable district heating. The sustainability features of the property were also further optimised and the asset just received BREEAM Excellent certifications in both BREEAM New Construction and BREEAM In-Use.
Case published 20.1.2025
We advised NoHo Partners Plc on a 119-million-euro financing arrangement. The financing arrangement frees up a significant part of the cash flow for the business and enables the implementation of an acquisition-driven growth strategy also in the future.
Case published 16.1.2025
We advised SATO Corporation and lead manager Skandinaviska Enskilda Banken AB (publ) Helsinki Branch in a rights issue. SATO received gross proceeds of approximately EUR 200 million from the issue. SATO Corporation is an expert in sustainable rental housing and one of Finland’s largest rental housing providers. SATO owns around 25,000 rental homes in the Helsinki Metropolitan Area, Tampere and Turku. Approximately 45,000 residents live in SATOhomes.
Case published 29.2.2024
We advised Oomi Oy in a partial demerger where Oomi’s solar power business for corporate customers demerged and formed a new independent company, Oomi Solar Oy. As part of the partial demerger process, we assisted Oomi in pre-emptive discussions with the tax authorities where the tax treatment of the restructuring was confirmed. Oomi Solar, the demerged company, focuses on implementing solar power plants for real estate properties, ground-level solar power plants and industrial solar power parks and supports companies and entities in their transition towards renewable energy. Oomi Solar started operations on 1 January 2024.
Case published 12.2.2024
We advised Danske Bank A/S and its subsidiary Danske Finance Oy in a cross-border absorption merger, which was carried out in accordance with the Finnish and Danish Companies Acts. After the merger, Danske Bank A/S will continue the business of the merged Danske Finance Oy as a branch in Finland. As part of the arrangement, we advised Danske Finance Oy in particular on the merger process and the related registrations and approvals required to the complete the arrangement. Our team in this arrangement included experts in corporate governance, capital markets and financial regulation and employment law.
Case published 15.1.2024
We advised OP Corporate Bank plc in a real estate financing arrangement relating to DHL Express logistics centre under construction near Helsinki Airport. In the arrangement Nrep (acting on behalf of NSF III Fund) and Pontos Group acquired Finavia’s stake of DHL Express logistics centre under construction. LEED Platinum certification will be applied for the project, and as a result of the certification, the facility is contemplated to qualify as a green loan after the construction completion date.
Case published 12.3.2025