A&O Shearman’s team regularly advises on mergers, risk management and a range of behavioural matters for both international and domestic clients operating across various industries including consumer goods, energy and life sciences. The team also regularly represents clients before the Polish Competition Authority, the European Commission and the domestic courts in merger control matters. Marta Sendrowicz leads the practice, providing financial institutions and multinational and regional corporates with comprehensive support on business structures and day-to-day compliance, in addition to representation in antitrust investigations before regulatory bodies. Aleksandra Deszyński represents clients in merger, antitrust and state aid proceedings while also carrying out antimonopoly audits.

Deemed a ‘go-to competition team’, Baker McKenzie Krzyzowski i Wspólnicy Sp.k. is particularly well-regarded for full-service contentious work, assisting clients from the initial cartel investigations and dawn raids, down to competition and consumer litigation. The team is well-equipped to provide advice on antitrust compliance, merger clearance and EU grants expertise . The expansive team is jointly led by Marcin Trepka, who specialises in Polish and EU competition law, regularly representing clients in both domestic and EU courts, and Mikołaj Piaskowski, who also displays competency representing clients in proceedings, however, specialising in merger control. Elżbieta Buczkowska departed the firm in December 2024.

‘With excellent knowledge of competition law in Central Europe’, the team at CMS is well-versed in the intricacies of merger control and antitrust compliance. Boasting high-profile clients - particularly those in the goods industry – the team provides advice on sales and pricing models, consumer contracts and marketing. Alongside its advisory offering, the firm also assists clients with both internal and competition authority investigations into alleged anti-competitive behaviour. Leading the practice is Małgorzata Urbańska, whose advisory portfolio of work covers state aid and unfair competition matters, while her contentious focus lies with cartel cases and dominance issues. Singled out for her assistance in dawn raids and internal investigations is Izabela Biernat-Sadlak, whose advisory service focuses on consumer products.

Dentons' sizeable team offers specialist antitrust advice across a wide range of industries including real estate, TMT and Big Data, being well placed to advise on a variety of domestic and EU legislation. The bulk of the work, however, lies in antitrust investigations and state aid, as well as merger control cases. Agnieszka Stefanowicz-Barańska leads the practice, representing clients in EU and Polish Competition Authority proceedings, in addition to cartel (and other antitrust investigations before the Polish courts). Also supporting the team, Anna Gulińska is part of the firm’s counsel, advising and representing clients on matters concerning  antitrust, merger control and unfair commercial practice.

Greenberg Traurig Nowakowska-Zimoch Wysokinski Sp. k assembles a comprehensive competition and antitrust offering, with a specific focus on merger control, including numerous notifications to the European Commission and the Polish Competition Authority. The team's full offering covers various proceedings regarding anticompetitive practices including market sharing or abuse of dominance, and disputes with elements of private enforcement, the abuse of contractual advantage and the collective interests of consumers. The team’s experience in this sector stretches across such industries as insurance, banking and media. Leading the practice is Robert Gago, well-known for handling the representation of clients in administrative antitrust and merger proceedings conducted by various competition enforcement agencies.

Boasting a high-profile client base, consisting of international corporations and their Polish subsidiaries, as well as the leading domestic corporations, the Linklaters team provides advice across various industries, namely, banking and finance, telecoms and healthcare. Offering an advisory service spanning merger control, state aid and foreign investment, the team operates across a complex, cross-border landscape, given the firm’s global network. On the contentious side, the team represents clients before the Polish Competition Authority in cartel and vertical matters. Leading the practice is Małgorzata Szwaj, who is a recognised authority on EU merger control and restrictive agreements. Barbara Wanat advises clients with regard to Polish and European competition and consumer protection law, while Filip Stawicki joins the firm from Clifford Chance.

With a ‘proven track record of success’, the team at WKB Lawyers is consistently involved in complex competition matters covering the entire spectrum of the practice area, including cartels, leniency programs and distribution agreements. The firm assists clients with both contentious and non-contentious matters, offering both strategic advice and representation in proceedings before the European Commission and the Polish Competition Authority, as well as in domestic court disputes. Jointly leading the team is Aleksander Stawicki, is involved in numerous proceedings before competition authorities, while Dorota Karczewska has experience cooperating with consumer ombudsmen and consumer organisations. Also leading the team is Bartosz Turno, who is well-versed in Polish and EU competition law, most notably handling judicial reviews, and Wojciech Kulczyk, who is responsible for coordinating the firm’s work on merger notifications and foreign investment. Acting as counsel, Aleksandra Dziurkowska leads her team in novel proceedings concerning the new laws on combating abuse of contractual power.

The team at Clifford Chance, Janicka, Kruzewski, Stosio i wspólnicy spólka komandytowa assists clients with an array of both contentious and non-contentious matters ranging from representing clients before the Polish Supreme Court on cartel and enforcement matters, as well as advising on consumer protection issues, such as selective distribution and green claims. The firm’s growing client base is formed of international and domestic players within a vast range of industries, notably, banking and finance, retail and e-commerce. Iwona Terlecka leads the practice, with expertise across both Polish and EU competition law, showing prowess in technically complex antitrust matters.

The team at DLA Piper Giziński Kycia sp.k. handles a variety of matters ranging from general antitrust issues (such as multilateral agreements and unilateral conduct) to merger control and state aid. With a robust client roster spanning the consumer goods, retail, media and insurance sectors, the firm also provides representation in collective consumer interest and takeover proceedings at the domestic level, at the Office of Competition and Consumer Protection, and at the supranational level, before the European Commission. Jointly leading the team is Andrzej Balicki, who displays expertise in advising on horizontal and vertical agreements, and Michał Orzechowski, who handles cartels, vertical agreements and merger control issues.

Domanski Zakrzewski Palinka’s team provides comprehensive offering, advising on anti-competitive practices, concentration control and consumer protection regulations, while also displaying consulting capabilities in unfair trade practices, particularly in the agricultural industry. The team also represents clients in proceedings initiated by the Office of Competition and Consumer Protection, the European Commission and the domestic courts. Leading the practice is Jaroslaw Lukawski, who acts for international and domestic clients in a number of complex merger control proceedings and is also involved in antitrust proceedings and appeals across a wide range of sectors, including energy and pharmaceuticals.

GESSEL Attorneys at Law regularly advises on mergers, takeovers and asset acquisitions, notably providing a bespoke service for industries subject to special regulatory regimes, such as finance, pharmaceuticals and insurance. The team also represents clients before the Office of Competition and Consumer Protection and the domestic courts in proceedings concerning collective consumer interests and unfair competitive practices. Leading the practice is Bernadeta Kasztelan-Świetlik, who provides advice to international and domestic clients, on matters concerning concentrations and agreements and abuses of dominant position.

With extensive experience in representing clients across a variety of competition matters, including cartels and abuses of dominance, the team at Hansberry Tomkiel regularly appears on behalf of clients at all levels of the domestic courts and the European Commission, as well before other Member States’ Competition Authorities. Jointly leading the team are experienced litigators Małgorzata Krasnodębska-Tomkiel, who is well-versed in new technologies and who advises clients on the competition and consumer protection laws in conjunction with this industry, and Dorothy Hansberry-Biegunska, a specialist in case strategy, who is adept in working alongside the Polish Competition Authority.

The team at Modzelewska&Pasnik provides comprehensive competition law advice and representation, in issues regarding antitrust, mergers and distribution, as well as compliance. The firm also regularly handles contentious cases before Polish and European authorities and courts, representing clients at every stage of antitrust proceedings, and in vertical agreement and alleged abuse of dominance cases. Jointly leading the practice is Małgorzata Modzelewska de Raad, who specialises in antitrust law, regularly advising on various matters and supporting entrepreneurs in searches and inspections by antitrust authorities, while Piotr Paśnik represents clients before domestic and supranational competition authorities in matters relating to competition protection and sectoral regulations.

With extensive experience in handling both domestic and cross-border competition and antitrust cases, the team at Rymarz Zdort Maruta has significant experience in Polish and EU competition law matters, including merger control proceedings, abuse of dominant positions and foreign direct investment. The team often appears before relevant authorities such as the Polish Office of Competition and Consumer Protection, the European Commission and the Polish Antimonopoly Court, in order to represent its clients in various complex disputes across a diverse range of sectors, including telecoms, healthcare and transportation. Iwona Her, deemed a specialist in antitrust, leads the practice, assisting clients on merger control proceedings, cartels and consumer protection.

The ‘exceptional‘ team at Soltysinski Kawecki & Szlezak has extensive experience in handling both domestic and cross-border matters pertaining to merger control, compliance and private litigation. The team often appears before relevant authorities such as the Polish Competition Authority and the domestic courts and represents its clients in various complex disputes across a variety of sectors, including oil and gas, e-commerce and aviation. Leasing the practice is Krzysztof Kanton, who specialises in merger control notifications and represents clients in antitrust matters before relevant authorities and courts. Joanna Marek assists domestic and international clients with proceedings before various authorities in matters such as the infringement of consumers’ collective interests and anti-competitive practices.

The team at Wardynski & Partners is well-regarded for its experience representing clients in competition and antitrust proceedings before the Polish Competition Authority and the European Commission, as well as assisting clients with cases in domestic and foreign courts regarding anti-competitive agreements, abuse of a dominant position and merger control. The team embraces an interdisciplinary approach by handling transactional and litigation matters across a diverse range of sectors, including telecoms, healthcare and transportation. Leading the practice is Antoni Bolecki, who specialises in competition and consumer law and oversees the team’s antitrust proceedings.

The team at Affre & Wspólnicy Sp. k. enjoys a superb reputation for handling investigations and litigation. Being regularly called upon to support clients in proceedings before the Office of Competition and Consumer Protection, the team’s strength lies in matters concerning anti-competitive activities and merger control. The firm’s client base is spread across a variety of industries such as retail, automotive and pharmaceuticals. Leading the practice is Joanna Affre, who is well-placed to advise on issues of competition and consumer law.

The team at Eversheds Sutherland Poland regularly conducts complex proceedings, on a wide range of matters including distribution aspects and bid rigging, before a larger number of competent authorities such as the Office of Competition and Consumer Protection, as well as the domestic courts. The firm’s client base spans several sectors such as tech, energy and pharmaceuticals. A key contact in the team is Dariusz Aziewicz, who advises clients on complex antitrust issues, and who often appears before the Polish Competition Authority in merger control cases.

Gide Loyrette Nouel assists clients with matters relating to competition and consumer protection with their offering, notably distribution systems. Frequently handling cross-border matters, the team is well-versed in not only domestic but also European competition law, representing clients in proceedings before the Polish Office of Competition and Consumer Protection and the European Commission. Leading the practice is Dariusz Tokarczuk, who advises on both domestic and EU distribution systems, as well as concentration control and state aid-related issues.

Kieszkowska Rutkowska Kolasinski Kancelaria Prawna sp. j. is particularly renowned for providing regulatory and competition law advice to key market players across a range of industries in the domestic and international market, including the FMCG, energy and automotive sectors. The team also assists clients in preparing for prospective actions by the competition authorities through executing due diligence assessments and holding mock dawn raids. Marcin Kolasiński leads the team, advising on various elements of competition, consumer protection, and state aid.

Known for its bespoke antitrust offering, the team at Traple Konarski Podrecki & Partners advises on pricing policies, mergers and antitrust risk mitigation for a client base that spans various industries, most notably construction. Jointly leading the practice is Paweł Podrecki, who assists novel market players seeking to operate in Poland, and Tomasz Targosz, who represents clients before the Office of Competition and Consumer Protection. Also key to the practice is Katarzyna Menszig-Wiese who assists with antitrust issues.

The team at White & Case M. Studniarek i Wspólnicy - Kancelaria Prawna sp.k. specialises in assisting with competition and antitrust issues relating to private M&A transactions. With a client base of domestic and multinational businesses spanning a broad range of sectors (such as TMT, IT and oil and gas), the team works on local and cross-border control filings. Leading the team is Jakub Gubański, who focuses his practice on merger control rules and antitrust compliance in both the EU and Poland.