29.1.2021

Anu Sillanmäki

Anu Sillanmäki is a newly appointed member of the Finnish Bar Association and a senior associate at Castrén & Snellman. She encourages her colleagues to go on secondment.

In law firms, a secondment means temporarily working either in another team or in a client company. Anu has done both. Last spring, she was on secondment with Metsä Group for three months.

‘It was an all-around great experience. I learned a lot being able to see the work law firms do from the perspective of the client. It’s worth a try if the opportunity arises.’

Over the spring, Anu worked with many different business units and a wide variety of fields of law. Some of her assignments were very similar to her work at C&S, such as commenting on agreements, but many of them were entirely new to her. Thanks to her secondment, Anu learned what it’s like to work as an in-house lawyer.

Anu works in Castrén & Snellman’s International Construction & Projects team. She advises the firm’s clients in international and domestic project and energy law assignments and in real estate transactions.  Typical tasks for her include drafting and commenting on agreements and, in particular, taking part in energy sector transactions.

A Lawyer by Chance

Anu became a lawyer by chance. As a child, Anu moved with her family to England, and Anu attended lower and upper secondary school in English.

‘I liked the English language and went to study English in the Faculty of Arts. During my studies, I realised that while I enjoyed both the language and my studies, I didn’t necessarily want to make a career out of it.’

Anu found a new field thanks to her boyfriend. When her boyfriend, now her husband, decided to switch fields and applied to law school, Anu decided to follow the next year.

‘Being fluent in English has been very useful working at a law firm, as most of our documents are drafted in English.’

A Career U-Turn

Anu was smitten by competition law in her very first year of law school. She took every optional course available on competition law and wrote her seminar papers and master’s thesis on it, as well. Before graduating and for a few months afterwards as well, she worked at the Finnish Competition and Consumer Authority in competition enforcement.

‘Throughout my studies, I was certain I would become a civil servant and that law firms were not for me. As graduation grew closer, however, I thought I should at give working in a law firm a try.’

The direction of her career changed when she got a job in the competition law team at a large law firm.

‘First of all, I found that I actually enjoyed working in a law firm. Second, I was exposed to other fields of law through working with other teams at the firm and realised that competition law was not the only field that interested me. I realised that university courses provide a fairly narrow and theoretical picture of different fields of law.’

Experience in Many Fields of Law

Many young lawyers are eager to find ‘their thing’ as soon as possible. However, Anu would encourage them to try out many different fields of law.

‘Many law students think that it’s important to find their favourite field of law during their studies and that their first job after graduation will determine the rest of their career. I think it’s worth collecting a wide range of experience. The more you know about different fields of law, the better lawyer you will be, because most cases touch on multiple fields.’

One of the things that Anu particularly likes about Castrén & Snellman is that the firm has a wide service offering.

‘Many of the assignments we have involve different fields of law and require collaboration between different teams. We also have the opportunity to work in other teams according to our interests and workload. It adds a lot of variety to work and is one of the things I like most about C&S. Everyone at the firm has a secondary team, which lowers the threshold to try out other fields.’

A Once in a Lifetime Christmas Gift

Anu got a unique gift last Christmas, as she was accepted into the Finnish Bar Association on 24 December 2020.

‘It was a very nice Christmas gift’, she laughs.

Anu will continue learning and getting to know new fields of law, as she is starting court training in May. Her court training will be half with the Eastern Uusimaa District Court and half with the Helsinki Administrative Court.

Anu is looking forward to challenging herself, deepening her general knowledge of the law and maybe kindling a spark for dispute resolution.

‘I’ve heard that court training can give you a lot of confidence. I’m sure that jumping into a new challenge and having to solve entirely different kinds of legal problems than the ones I’m used to will do just that for me, as well.’

Latest references

We advise Fingrid Oyj in a transaction in which Ilmarinen Mutual Pension Insurance Company is selling its holding of approximately 20 per cent of the shares in Fingrid to the Finnish State and OP Pohjola Kantaverkko Holding Ky. Fingrid owns Finland’s main electricity transmission grid and all significant cross-border transmission connections. The main grid is the backbone of the electricity transmission network, to which major power plants, industrial plants and regional electricity distribution networks are connected. 
Case published 11.2.2026
We advised Metsäkonepalvelu Oy in its acquisition of the entire share capital of PJP Metsäexpertit Oy. PJP Metsäexpertit is a Pirkanmaa-based company specialising in forest management and logging. The acquisition will strengthen Metsäkonepalvelu’s operations, particularly in the Pirkanmaa region, and expand its operations. Metsäkonepalvelu is a portfolio company of A. Ahlström Oy, a Finnish family-owned industrial owner. Metsäkonepalvelu provides mechanical timber harvesting services to forest companies, large private forest owners, and the public sector in Finland and Sweden. Metsäkonepalvelu Group employs nearly two hundred forestry professionals.
Case published 6.2.2026
We acted as legal adviser to EcoUp Oyj in a directed share issue, through which EcoUp raised a total of approximately EUR 3 million in gross proceeds to strengthen the company’s capital structure and finance its growth. The share issue was directed to a limited group of domestic investors, deviating from the shareholders’ pre-emptive subscription right. EcoUp’s shares are traded on the First North Growth Market Finland marketplace maintained by Nasdaq Helsinki.  EcoUp promotes the green transition of the construction industry by producing carbon-neutral, energy-efficient and circular economy-based materials, services and technologies that help construction industry players reduce their environmental impact. The company has over 40 years of experience in developing and delivering circular economy solutions to customers.
Case published 29.1.2026
We advised a leading global investment firm Brookfield, alongside a global sovereign wealth investor, on the Finnish law aspects of a EUR 1 billion holdco financing for DayOne Data Centers, a Singapore-headquartered developer and operator of hyperscale data centres. Structured as a seven-year secured holdco financing facility of €500 million, expandable to €1 billion – and secured by DayOne’s Finland platform – the financing will support the rollout of hyperscale developments in Lahti and Kouvola, providing nearly 300MW of planned capacity across Finland. The proceeds will also support DayOne’s global expansion across the EU and APAC, with flexibility to allocate to other key growth markets as required.
Case published 29.1.2026