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.

Career+

Education+

Language+

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.

NATO Innovation Fund – Kelluu’s EUR 15 million Series A funding round

We advised the NATO Innovation Fund as lead investor on Kelluu’s EUR 15 million Series A funding round, with participation from Keen Venture Partners, Gungnir Capital, and Tesi. Kelluu is a Finnish deep tech company operating the world’s largest autonomous airship fleet. We advised NIF on this transaction alongside global law firm Latham & Watkins.

Nscale – Data centre project

Castrén & Snellman advised Nscale, a European AI infrastructure company, in connection with its planned data centre project in Harjavalta, Finland. The facility will be located in the Sievari industrial area. Castrén & Snellman’s advisory role encompassed the negotiation and execution of a site securing and development agreement (SSDA) with Fortum, as well as the preliminary land sale process for the Sievari site with the Town of Harjavalta. Under the SSDA, Fortum supports the advancement of Nscale’s project development, including grid connection design and permitting.

Taaleri – Acquisition of a majority stake in Nordic Science Investments

We are acting as legal adviser to Taaleri Plc on its acquisition of a 51 per cent ownership stake in Nordic Science Investments Oy (NSI), marking Taaleri’s expansion into deeptech-driven venture capital. Through the transaction, Taaleri broadens its private equity offering into early-stage venture capital funds as well as the commercialisation and scaling of research-driven innovations. NSI is a Finnish venture capital fund manager operating across the Nordic and Baltic regions, focusing on early-stage investments in research- and science-based technologies. Its portfolio companies develop, among other things, health technologies, life sciences, advanced materials and AI-driven solutions. In addition to providing growth capital, NSI supports spin-out companies with strategic guidance, access to networks and assistance in building teams during the early phases of business development. NSI’s first fund, the EUR 45 million NSI Nordic Science I Ky, was established in 2024 and has to date invested in 22 early-stage companies in Finland, Sweden and the Baltic countries. Taaleri is a specialist in investments, private asset management and non-life insurance, with a strong position in renewable energy, bioindustry and housing investments as well as credit risk insurance. Taaleri has EUR 2.7 billion of assets under management in its private equity funds, co-investments and single-asset vehicles, employs approximately 130 people and is listed on Nasdaq Helsinki. The founders of NSI will continue in their operational roles following the transaction. The completion of the transaction is subject to approval by the FIN-FSA.

Finnish Centre for Pensions – Information design workshop

We delivered two information design workshops for the legal department of the Finnish Centre for Pensions, with participants from both legal and other professional backgrounds. In the sessions, we applied the principles of legal design thinking to the Finnish Centre for Pensions’ field of operation and background materials, also utilising AI as a design tool. The participants found the tailored training highly useful and commended the trainers for their in-depth familiarisation with the Centre’s opinion drafting process and operating environment. As a result of the workshops, our experts proposed a new structural and linguistic model for the legal department of the Finnish Centre for Pensions for drafting opinions and guidelines. The proposal was well received as clear and applicable to the participants’ everyday work. In addition, we presented tailored AI use cases to support experts, allowing for a more efficient AI-assisted way of working. Our experts who delivered the workshops combined their legal expertise with their leading experience in legal design. The participants appreciated this versatile expertise, which enabled a knowledgeable, creative and applied approach to legal writing. ‘C&S created a well-structured training tailored to our needs, providing clear direction for our organisation and concrete takeaways for our experts in their day-to-day work,’ says Mari Kuunvalo, Head Of the Legal Department at the Finnish Centre for Pensions.

Aktia Bank – EUR 80 million AT1 bond

We advised Aktia Bank Plc on the issuance of an EUR 80 million Additional Tier 1 (AT1) bond. The bond pays a fixed interest rate of 6.75 per cent semi-annually. The bond is perpetual, and Aktia has the right to redeem or repurchase it in accordance with the terms of the bond, subject to certain conditions. The bond was issued on 1 April 2026. In addition, we assisted Aktia in listing the bond on the Nasdaq Helsinki Ltd stock exchange. For the listing, we prepared Finland’s first EU Follow-on prospectus for a bond. The EU Follow-on prospectus was introduced on 5 March 2026 with an update to the Prospectus Regulation (EU) No. 2017/1129. The EU Follow-on prospectus is a new type of prospectus that can be used, among others, by issuers whose securities have been admitted to trading on a regulated market continuously for at least the 18 months preceding the offer to the public or the admission to trading on a regulated market of the new securities. A follow-on prospectus is simpler than a so-called traditional prospectus, and it is intended to avoid repeating information that the issuer has already disclosed. Nordea Bank Abp acts as the sole structuring advisor for the issue of the Notes. Nordea Bank Abp, Danske Bank A/S and ABN Amro Bank N.V. act as the lead managers for the issue of the Notes.

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 20 776 5113 mats.forsius@castren.fi

+358 40 922 5703 mikko.hanni@castren.fi

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

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

Laura Häyrinen

Senior Associate

+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 20 776 5132 werner.laitinen@castren.fi

Anniina Perkiö

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

Search from the site.