Covering all major areas of antitrust, merger control advisory and filings, and state aid cases, Borenius handles both in and out-of-court negotiations. The team stands out for its expertise in cartel matters, advising on cases before the FCCA and the Finnish courts. Clients cover the aviation, property management, bus, building services and engineering sectors. Jenni Heurlin, who has a strong track record in EU and Finnish competition law, joined in January 2026 from Hannes Snellman to lead the practice. Henriikka Piekkala is a key name to note for state aid issues and regulated market matters, with extensive experience in telecommunications law related to antitrust issues, policy matters, and privacy issues. Another name to note is Leo Rantanen.
Legal 500 Editorial commentary
Accolades
Client satisfaction: NPS ®
Testimonials
Collated independently by Legal 500 research team.
- ‘Borenius has a seasoned team that knows how to handle the national regulator (and the EU Commission) in a way that best serves clients' needs. They are prompt in getting back to us with thought-through advice.'
- ‘Strong team with very capable lawyers, especially in the energy and telecoms fields.'
- ‘Henriikka Piekkala is top notch.'
- ‘The team knows our business and its challenges extremely well. They are ready to support us and their expertise is excellent.'
- ‘Excellent, on-time responses, excellent knowledge of the issues, good and dynamic team.'
- ‘Solid knowledge of the law and the practice area - definitely one of the best practices in Finland for this topic. Always easy to collaborate with.'
Key clients
- Finnair Oyj
- City of Turku
- The Social Insurance Institution of Finland – KELA
- Morgan Stanley
- Netflix, Inc
- Viljava
- The Confederation of Finnish Construction Industries
- Uponor Oyj Oy
- L’Oréal Finland
- The Finnish Real Estate Management Federation
- Helsinki and Uusimaa Hospital District
- Raisio Plc
Work highlights
Representing Uponor Suomi Oy and Uponor Infra Oy before the Finnish Supreme Administrative Court in proceedings concerning an alleged cartel in the market of plastic infrared pipe production.
Advising the Finnish Federation of the Brewing and Soft Drinks Industry on a state aid complaint before the European Commission concerning a recent exemption from retail sales regulation and a tax advantage.
Advising fully state-owned Suomen Viljava Oy on investigations stemming from a state aid complaint concerning the establishment and operations of Viljava’s subsidiary Oat Mill Finland Oy.
Practice head
Jenni Heurlin
Other key lawyers
Henriikka Piekkala; Leo Rantanen