Department profile
Baker McKenzie

Competition/Antitrust

Europe Guide 2026 : Poland

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Baker McKenzie

Rankings

About

Provided by Baker McKenzie

Our Competition team which currently have eight (8) full time competition lawyers is one of the strongest and most versatile competition practices on the Polish market. We advise clients on the full range of issues related to Polish and European competition and consumer law.

 

The scope of our antitrust expertise includes a leading market contentious practice, including antitrust litigation (also private enforcement litigation), cartel investigations, EU competition litigation and a strong and respected antitrust compliance, merger clearance, consumer protection and State aid expertise. It is a result of constant development of the practice and activity of our lawyers at the international/EU level.

How we can help?

  • Representing clients in precedent-setting proceedings for damages for violation of competition law (private enforcement)
  • Representing clients before Polish and EU courts
  • Representing clients in anti-monopoly proceedings, mergers, acquisitions and joint venture transactions (notification of merger control)
  • Advising on consumer protection law
  • Conducting antitrust audits and internal investigations
  • Preparation and implementation of competition compliance programs
  • Developing new business models, new pricing policies, market strategies in case of potential dominant positions

Chambers Review

Provided by Chambers

Competition/Antitrust - Poland

Band 2

What the Team is Known For

Baker McKenzie has a well-regarded practice group advising prominent international and domestic companies, often from the TMT, energy and financial services industries. The law firm assists with merger control matters, working alongside the firm's competition teams in other jurisdictions on multi-jurisdictional filings. The team represents clients in Polish competition authority investigations into possible price fixing and consumer protection issues, as well as challenges to authority decisions and damages actions. Team members have additional experience in state aid mandates.

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Work Highlights

Provided by Chambers

  • Baker McKenzie represented TERG in an appeal against a Polish Competition Authority decision.

Strengths

Provided by Chambers

  • What sets this team apart is its ability to cut through regulatory complexity and deliver clear, actionable solutions that align perfectly with business objectives.

    Competition/Antitrust respondentEurope

  • The company is characterised by its rapid response, high precision and the relevance of the advice it provides.

    Competition/Antitrust respondentEurope

  • The firm's strengths are its practical and pragmatic advice, outstanding responsiveness, in-depth knowledge of our sector and easy communication.

    Competition/Antitrust respondentEurope

  • The team covers the full spectrum of antitrust matters - from merger control and cartel investigations to state aid and private enforcement - with equal strength.

    Competition/Antitrust respondentEurope

  • We appreciate the team's knowledge and experience, solution-oriented approach, pace of work and friendly atmosphere.

    Competition/Antitrust respondentEurope

Notable Practitioners

Provided by Chambers

  • Marcin Trepka
    Marcin Trepka

    Marcin Trepka

    Marcin Trepka brings to bear his expertise throughout the full life-cycle of behavioural and consumer protection matters, from initial investigations to appeals and private enforcement actions.

    • We are very impressed, he is very hands-on and very diligent.

      Competition/Antitrust respondentEurope

    • He has been one of the most impressive and expedient lawyers, knows how to talk to the business as well as to in-house counsel.

      Competition/Antitrust respondentEurope

    • He is very responsive and pragmatic.

      Competition/Antitrust respondentEurope

    • His guidance makes us feel confident in complex consumer protection matters.

      Competition/Antitrust respondentEurope
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Ranked Individuals at Baker McKenzie (1)

Poland

Members

Provided by Baker McKenzie

  • Marcin Trepka

    Head of Department

    View profile of Marcin Trepka

  • Mikołaj Piaskowski

    Head of Department

  • Elżbieta Buczkowska

  • Michał Derdak

  • Martyna Wurm

  • Marta Banaś-Klimkiewicz

Baker McKenzie has rankings in the following guides

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