22.4.2026

Newly promoted senior counsel Anu Aaltonen is a leading expert in challenging competition law matters

Castrén & Snellman promoted Anu Aaltonen to Senior Counsel in its Competition & Procurement practice as of 1 April 2026. She is an experienced competition law specialist with deep expertise across the full breadth of the field.

Anu joined Castrén & Snellman in 2021 and has since built a strong reputation for delivering clear, strategic advice on some of the most demanding competition law matters. Her ability to cut through complexity and provide clients with practical, commercially grounded guidance has made her a trusted adviser across a wide range of issues, including cartel investigations, dominance matters, self-assessments and M&A-related competition questions.

‘Anu’s strategic thinking and ability to grasp the big picture set her apart, particularly in the most demanding competition law matters. Navigating that level of complexity with clarity and confidence requires exceptional skill, and Anu does it consistently. This promotion is a well-deserved recognition of her expertise and her consistent and dedicated work for our clients,’ says partner Jussi Nieminen, Head of Competition & Procurement.

Anu has an exceptional depth of experience. Before joining Castrén & Snellman, she worked as counsel at another law firm for over a decade, developing a comprehensive understanding of competition law in practice. She has also gained experience from the European Commission. In her new role, Anu will take on broader responsibilities, continuing to advise clients on complex competition matters while also playing an active part in developing the team and driving the growth of the practice.

Competition law is never straightforward, but that is what keeps it interesting. I am genuinely excited about this new role, and above all, very happy to working alongside this team of exceptional people. I look forward to everything we will continue to achieve together – for our clients and for the practice. – Anu Aaltonen

Latest references

We acted as legal adviser to Banyan Software on its acquisition of Carus Ferry, a Finland-based provider of reservation, check-in and port operations software for ferry and passenger shipping operators. The acquisition further strengthens Banyan Software’s presence in the Nordic region while providing Carus with a long-term partner to support its continued growth and development. Carus was founded in 1998 and is headquartered in Mariehamn on the Åland Islands, Finland. The company develops mission-critical software for ferry, cruise and passenger shipping operators, covering the full passenger journey from booking and ticketing to capacity management, check-in and boarding. Carus also provides port automation, onboard sales systems and business information tools. The company serves approximately 30 operators across four continents and is the largest vendor by customer count in ferry reservation and departure control. Banyan Software is an acquirer and long-term operator of mission-critical software businesses serving specialised industries. Founded in 2016, Banyan follows a buy-and-hold-for-life approach and supports the long-term growth and development of its portfolio companies. Banyan operates more than 130 portfolio companies across North and South America, the United Kingdom, Europe and APAC. Following the acquisition of Carus, Banyan operates three businesses in the Nordic region.
Case published 20.10.2026
We advised Move Energy as an investor in connection with the combination of 3North Partners Plc and Steady Energy Oy and the related private placement and initial public offering of the combined company on Nasdaq First North Growth Market Finland. In connection with the transaction, 3North Partners received approximately EUR 69.8 million in investor commitments from a group of institutional and other investors, including Move Energy, to fund the combined company. Steady Energy is a Finnish nuclear technology company developing a new generation of small modular reactors (SMRs) particularly suited for district heating. Its LDR-50 reactor is designed to provide cities and utilities with a scalable and low-carbon alternative to combustion-based heat production.
Case published 19.10.2026
We advised Efima Oyj on the sale of its AI business to Better Care Technologies Oy. The transaction included Efima’s Moiva AI platform developed for the care sector, the related technology and brand, customer contracts, and the experts working in the business. Efima is a Finnish digital company that supports the sustainable growth of large and mid-sized companies by streamlining their business processes and by creating competitive advantage through the innovative use of artificial intelligence and data. The company has nearly 200 experts based in Helsinki and Tampere. 
Case published 21.9.2026
We advised Neoen Renewables Finland Oy, part of the French Neoen Group, in its sale of a data centre project to a consortium consisting of international data centre developers and operators. This marked Neoen’s first data centre development project in Finland. Founded in 2008, Neoen is one of the world’s leading independent renewable energy producers. The company operates in 15 countries. It develops, finances, builds, owns, and operates solar power plants, wind farms, and battery storage systems. Neoen Group is owned by global alternative asset manager Brookfield Corporation.
Case published 17.9.2026