
CMS advises on all aspects of competition law, including merger control, antitrust compliance and consumer protection. Notably, the team supports both internal and competition authority investigations into alleged anti-competitive behaviour, including dawn raids and antimonopoly proceedings. Malgorzata Urbanska leads the team, specialising across a wide range of Polish and EU competition law issues, including merger control, state aid, and public procurement, representing clients in numerous merger notifications to both Polish Competition Authority and the European Commission. Krzysztof Sikora has significant experience in antitrust cases, advising on antitrust investigations, representing clients before the competition authorities and the courts. Izabela Biernat-Sadlak specialises in EU and Polish competition law, including antitrust, merger control, and unfair competition.
Legal 500 Editorial commentary
Testimonials
Collated independently by Legal 500 research team.
- My main point of contact is Izabela Biernat-Sadlak. She is very responsive and she is there for you. She also has a good practical sense and can provide solutions that can actually be implemented.
- We work with the team on consumer and competition issues. They are hands-on, responsive, and provide practical advice.
Key clients
- Alstom
- Van Tilburg-Bastianen Group / TB Truck & Trailer Service Sp. z o.o.
Work highlights
Advising Alstom in an antitrust case against a Polish Competition Authority decision regarding alleged anti-competitive conduct in a public tender of the Polish Rail Company.
Lawyers
Leading partners
The strongest partners in their field, leading on market-leading deals and endorsed by peers and clients alike.

Leading associates
Leading associates with regular involvement in their team's key work, and recognition from peers or clients as being ones to watch.
Practice head
Małgorzata Urbańska
Other key lawyers
Krzysztof Sikora; Izabela Biernat-Sadlak

