Anna-Stephanie Roubier

Partner

EU and Competition​

Anna-Stéphanie Roubier heads HPP’s EU & Competition practice, specialising in EU, competition and regulatory law. Anna-Stéphanie advises on a broad-spectrum of competition law issues: antitrust and transactional competition law matters, including merger control and screening investment (FDI), as well as state aid/non-EU state subsidies (FSR).  

Anna-Stéphanie has extensive experience in handling antitrust matters (investigations, administration proceedings and contentious) and merger control proceedings before the European Commission and national regulators. She also regularly represents clients in other contentious competition matters and EU-law based litigation. Her field of expertise also covers EU regulatory law, in particular chemicals and other product regulation.

Anna-Stéphanie has previously worked in the Brussels office of Cleary, Gottlieb, Steen & Hamilton LLP and as a legal advisor at the European Chemicals Agency. She has also previously practiced at other two leading Finnish commercial law firms. Anna-Stéphanie holds an LL.M. degree from the College d’Europe, Bruges (Belgium), and she is qualified as a Finnish attorney-at-law.

Susanna Rautiainen

+358 45 652 0551
susanna.rautiainen@hpp.fi

Anna-Stéphanie has been recognised as a ‘Leading Individual’ for EU & Competition in the Legal 500. She and her team have also been ranked both in Legal 500 and Chambers Europe.

What our clients have said about Anna-Stéphanie:

“Anna Roubier is an excellent professional with thorough knowledge and understanding in the field of competition law.”
– Chambers Europe 2026

“The individuals I work with stand out for their deep expertise and genuine dedication to our cooperation. I’ve especially valued working with Anna Roubier, whose insight and reliability have consistently made a difference.”
– Legal 500 2026

”The lawyers understand business needs and take good care of their clients
proactively.”
– Chambers Europe 2025

“We are really happy with the team and would use it again in the future.”
– Chambers Europe 2025

”Good substance and professional competencies.”
– Legal 500 2025

“A professional team with a wide range of expertise.”
– Legal 500 2025

”Customer-centric, quick response times.”
– Legal 500 2025

“Anna Roubier is a client focused and easy to approach professional with a high attention to quality work and details.”
– Legal 500 2024

”Excellent know-how, flexible and client-oriented way of working. Also good collaboration between other practices.”
– Legal 500 2024

“I was very pleased with the advice, which considered our issue from more viewpoints than I could have wished for and from both an EU and national competition regulatory perspective.”
– Chambers Europe 2023

HPP Attorneys (2018–)
Krogerus (2015–2018)
European Chemicals Agency (2011–2015)
Cleary, Gottlieb, Steen & Hamilton LLP (2007–2010)
Roschier Attorneys (2003–2007)

Finnish Bar Association
Finnish Competition Law Association
International Federation of European Law (FIDE Finland)
W@competition

University of Helsinki, LL.M. (2007)
College of Europe, LL.M. European Law (Belgium) (2003)
University of Strathclyde, LL.B. (Hons) European Law (United Kingdom) (2002)

Anna-Stephanie Roubier

Partner

EU and Competition​

2026