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.
- ‘The individuals we work with stand out for their exceptional combination of technical expertise, commercial insight, and pragmatic approach.’
- ‘Malgorzata Urbanska is very knowledgeable.’
- ‘The CMS Warsaw competition/antitrust team is highly professional, responsive, and pragmatic. They combine excellent knowledge of EU and Polish competition law with a deep understanding of our sector, which makes their advice very practical and business-oriented.'
- ‘This team combines outstanding legal expertise with strong commercial acumen, delivering advice that is clear, pragmatic, and business-focused. They are highly responsive, collaborative, and consistently go beyond expectations, feeling more like an extension of our in-house team than external counsel. Overall, they are a trusted partner and a first-rate practice.’
Key clients
- Alstom
- Van Tilburg-Bastianen Group / TB Truck & Trailer Service Sp. z o.o.
- Stuart (DPD Group)
- Stäubli
- Kärcher
- Partner in Pet Food (PPF)
- PZ Cussons
- Panattoni Development
- Honeywell
- CooperVision Poland
- Medtronic
- Sportsdirect
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.
Advised Kärcher in an appeal against the Polish Competition Authority’s decision imposing a fine on Kärcher for anti-competitive practices concerning sales on the Polish market.
Represented Medicover, an international healthcare and diagnostic service provider, on the acquisition of CityFit.
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