Mari Kulmakorpi

Associate, Master of Laws

Services

Employment

Contact details

I work as an associate in our Employment service. I regularly advise our domestic and international clients in various employment-related matters.

Prior to joining Castrén & Snellman, I worked as a legal counsel for an employer association and advised in various employment law related matters. I have expertise, for example, in questions related to temporary agency work. I have also previously worked in a Nordic food company as an HR lawyer. During my studies, I worked as an in-house legal trainee and in an international audit firm.

I have a Master of Laws degree from the University of Helsinki. In addition, I studied one semester at the University College Cork in Ireland.

I am currently on family leave.

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Latest references

Reka Industrial – Sale of Reka Cables to Nexans Group

We are acting as the legal advisor to Reka Industrial Plc in the sale of its wholly owned subsidiary Reka Cables Ltd, which operates the cable business of Reka Industrial. The purchase price of the shares is EUR 53 million and will be paid in cash. According to the Finnish Accounting Standards, the net debt of Reka Cables at the end of September 2022 was EUR 6.5 million. The completion of the transaction, conditional on the approval of the Extraordinary General Meeting of Reka Industrial and approvals by competent regulatory authorities, is expected to take place during the first half of 2023. Reka Oy, representing in aggregate 65.36% of the voting rights in Reka Industrial, has irrevocably undertaken to vote in favour of the transaction at the Extraordinary General Meeting. Reka Cables is the largest Finnish-owned cable manufacturer, which has been at the forefront of the cable industry for more than 60 years. Reka Cables provides durable, high-standard cable solutions for renewable energy production, network construction and industry as well residential and office construction. Reka Cables has approximately 270 employees, and the turnover in 2021 was EUR 134 million.

CapMan Growth – Investment in Fennoa

We advised CapMan Growth in its investment in financial management software company Fennoa Oy. Fennoa Oy is a rapidly growing software company that develops and offers cloud-based financial administration solutions. The company’s turnover and profitability have increased tenfold over the past few years. Fennoa Oy was founded in 2014, and it employs 32 people and serves approximately 500 accounting firms, as well as tens of thousands of their client companies. CapMan Growth is a leading Finnish growth investor that makes significant minority investments in companies aiming for strong growth and internationalisation. CapMan Growth is part of CapMan, which is a leading Nordic capital investor engaged in active value creation. CapMan has been listed on the Helsinki Stock Exchange since 2001.

Körber – Majority stake in AI consulting company DAIN Studios

We advised Körber, an international technology group in strengthening its Business Area Digital by acquiring a majority stake in DAIN Studios, a Finnish-German based company which provides data and AI consultancy. ‘AI First is a key strategic initiative for Körber. With DAIN Studios, we strengthen our position globally as innovation leader in the future-oriented field of AI’, says Dr Christian Schlögel , Chief Digital Officer and Member of the Körber Group Executive Board. ‘With the consulting expertise of DAIN Studios, we expand our possibilities to leverage the power of AI to create a visible business value on the side of the customer.’ Körber was established in 1946 and today has about 10,000 employees and more than 100 locations worldwide. Körber Business Area Digital offers and develops digital products, services and solutions with experts, science and partners from multiple industries within logistics, pharma, tissue and tobacco to transform global manufacturing. Körber AG is the holding company of the Körber Group. DAIN Studios is a Finnish-German data and AI consultancy business established in 2016, which offers artificial intelligence solutions. DAIN Studios’s clients come from a variety of industries such as telecommunications, pharmaceuticals, manufacturing, banking, insurance and media.

Neste – EUR 500 million refinancing arrangement

We advised Neste Corporation on the refinancing of its EUR 500 million term facility by way of two EUR 250 million bilateral term facilities provided by OP Corporate Bank plc and Danske Bank A/S, Finland Branch. Each term facility has a maturity of three years with extension options.

Prisma Properties – Sale and leaseback of ten grocery retail properties

We are assisting Prisma Properties AB in a sale and leaseback arrangement with Kesko Oyj comprising ten grocery retail properties. The transaction value is approximately EUR 59 million, and the properties are located in Sastamala, Jyväskylä, Lappeenranta, Vihti, Oulu, Saarijärvi, Liminka, Imatra, Loviisa, and Eurajoki. As part of the arrangement, the properties are leased back to Kesko Oyj under lease agreements with a weighted average lease term of 11.6 years. The portfolio includes well-known store concepts such as K-Citymarket, K-Supermarket, and K-Market.

YIT – Data centre construction agreements with XTX Markets

We advised the urban developer and construction company YIT on the drafting and negotiation of two construction agreements with the leading algorithmic trading firm XTX Markets for the development of two data centres in Kajaani, Finland, which are part of XTX Markets’ data centre complex. The first agreement, valued at approximately EUR 100 million and signed in December 2024, marked the commencement of the construction of the first data centre facility in Kajaani, establishing Kajaani as a strategic hub for high-performance computing infrastructure. Building on the success of this collaboration, YIT and XTX Markets entered into a second agreement in August 2025 to commence construction of a second data centre facility. This phase includes the delivery of the shell and core of the new building.

Rabobank – Financing arrangement for Olana Energy

Castrén & Snellman acted as legal advisor to Coöperatieve Rabobank U.A. in its capacity as sole lender and hedging bank providing senior financing to Olana Energy for a Battery Energy Storage Systems (BESS) portfolio in Finland. Our advice included preparing a legal due diligence report on the projects as well as advising on the negotiation of the various finance and project agreements. Olana Energy is a management-owned fast-growing independent power producer with an international pipeline of over 1 GW. The diversified portfolio of assets ranging from 5 to 30 MW reinforces the Finnish grid at a granular level.

Nomios – Acquisition of Intragen Group

We advised Nomios, a portfolio company of the European growth buyout investor Keensight Capital, with its cross-border acquisition of Intragen Group, a leading European expert in digital identity and access management. The acquisition marks a major milestone in Nomios’ growth strategy and further strengthens its position as the global trusted partner for cybersecurity across Europe. Nomios is one of Europe’s leading providers of cybersecurity services. Keensight Capital is a European growth buyout investor with deep expertise in technology and healthcare.

Get to know our other experts in the field

Tomi Kemppainen

+358 40 354 2204 tomi.kemppainen@castren.fi

+358 50 324 7377 outi.tahtinen@castren.fi

+358 50 357 1726 mats.forsius@castren.fi

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+358 40 577 3439 suvi.kettunen@castren.fi

+358 20 776 5420 jutta.nieminen@castren.fi

Laura Häyrinen

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+358 20 776 5093 laura.hayrinen@castren.fi

Senior Associate

+358 20 776 5497 ville.kukkonen@castren.fi

Sofia Seppänen

Senior Associate

+358 50 550 1274 sofia.seppanen@castren.fi

Werner Laitinen

+358 50 556 3751 werner.laitinen@castren.fi

Anniina Perkiö

+358 40 707 2405 anniina.perkio@castren.fi

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