CERHA HEMPEL Dezso & Partners's competition law team is recognised for its strong relationships with the Hungarian Competition Authority, enabling effective coordination and swift interaction with case handlers. The team provides high-level legal services in complex cartel, antitrust and merger cases, supported by robust cross-border capabilities through Cerha Hempel’s offices in the CEE region, offering clients a seamless, one-stop solution. The practice also delivers comprehensive compliance services, including training, and has recently expanded its focus to include consumer protection. The team is co-headed by Tamàs Polauf, who brings extensive experience in Hungarian and international competition law, and Márton Kocsis, a seasoned regulatory expert active in the e-commerce and pharmaceutical sectors as well as managing high-profile cases and mergers, representing clients across the healthcare, telecoms and construction industries.

CMS‘ antitrust, competition and trade practice offers comprehensive advice on all aspects of competition law, distinguishing itself by also handling state aid, public procurement and private damages actions, areas often overlooked by other practices. The team is experienced in merger control, antitrust compliance, market investigations, unfair competition and consumer protection. Szabolcs Szendrő, head of the team, brings a wealth of expertise from his tenure as chief legal counsel of the Hungarian Competition Authority’s merger division, where he led investigations and contributed to regulatory reforms. Dóra Petrányi specialises in cartel investigations, merger control, and abuse of dominance cases, including state aid matters. Aranka Nagy is active in both domestic and cross-border mergers, cartel investigations, and EU-level cases, while Zsófia Tari brings deep experience in cartels, vertical agreements, and abuse of dominance investigations.

Dentons' competition and antitrust team is noted for its expertise in handling both complex cases and transaction-related competition law issues, offering efficient support in short-form filings. The team is also well-regarded for advising on high-stakes cartel matters, vertical restraints, abuse of dominance, state aid and unfair commercial practices. Their innovative compliance services include multi-level training, policy drafting, and mock dawn raids. Co-led by Tünde Gönczöl and István Réczicza, the team is known for delivering tailored solutions across industries. Gonczol has extensive experience representing clients before the Hungarian Competition Authority and courts, with a focus on unfair competition and antitrust matters. Áron Károlyi-Szabó contributes significant expertise in EU and competition law, particularly in cartel cases and internal investigations, further strengthening the team’s capabilities.

DLA Piper Posztl, Nemescsói, Györfi-Tóth and Partners Law Firm’s competition and antitrust practice excels in advising on complex business combinations and mergers, offering comprehensive legal support to buyers, sellers, target companies and financial advisors. It regularly handles cases involving abuse of dominance, market power and unlawful state aid, demonstrating robust expertise in both Hungarian and European contexts. Co-head Gábor Fejes brings a wealth of experience across antitrust law, unfair competition and IP matters. Zoltán Marosi is noted for his proficiency in Hungarian and EU antitrust law, consumer protection and administrative litigation. Levente Molnár’s expertise spans mergers, cartels and state aid, with a focus on forensic reviews and compliance investigations. Balázs Csépai's recent experience at the National Competition Authority’s cartel investigations unit adds strategic insight to the team.

Hegymegi-Barakonyi and Fehérváry Baker&McKenzie Attorneys-at-Law's competition and antitrust team is highly active, managing significant investigations before the Hungarian competition authority and high-stakes antitrust cases. It frequently represents clients in merger notifications and investigations before the European Commission, and litigation before the European Courts in Luxembourg. The team acts as a hub for coordinating high-profile antitrust matters across the CEE region, with deep expertise in the energy, automotive, banking, pharmaceuticals and retail sectors. Co-head Zoltán Hegymegi-Barakonyi advises on competition compliance and represents major Hungarian and international clients in multiple industries. Co-head Márton Horányi specialises in state aid and EU law. András Horváth and Péter Mezei further strengthen the team with expertise across the automotive, energy and retail sectors.

The competition practice at Kinstellar Andrékó Ferenczi & Társai Ügyvédi Iroda is highly respected for its broad expertise and involvement in major investigations led by the Hungarian Competition Authority. The team ‘brings a wealth of experience and specialised knowledge' across sectors, handling merger control, unfair competition, abuse of dominance, cartel agreements, dawn raids, compliance policies and state aid regulatory clearances. Péter Vörös, head of the practice, is particularly known for his representation in high-profile cartel, abuse of dominance and unfair competition cases before Hungarian and European authorities. Orsolya Staniszewski focuses on competition law, including merger control, cartel cases, and state aid, while Fanni Oroszi has notable experience in cartels, abuse of dominance, and consumer protection.

Lakatos, Köves and Partners offer extensive expertise across key industry sectors, including real estate, telecoms, financial and digital services, and healthcare, with particular strength in FDI screening advisory work. Co-head Eszter Ritter is recognised for her proficiency in competition law, advising on antitrust, merger control, consumer protection and unfair competition cases, as well as her experience in litigation and dispute resolution. Iván Sólyom, co-head, brings over two decades of experience in antitrust, merger control, state aid and FDI matters. Adrienn Mándoki, known for her work in competition law, has handled consumer protection and cartel cases, including significant investigations against GE. She also advises extensively on merger filings, offering clients a wealth of experience and strategic insight.

With a longstanding presence in Hungary, A&O Shearman’s comprehensive competition law practice is renowned for its expertise across all facets of competition law, from antitrust investigations and litigation to compliance and advisory services. It has built a strong reputation in the banking, tech and telecommunications sectors, underscoring its specialised capabilities and commitment to clients. The firm’s work spans Hungarian and EU competition law, with a notable focus on authority investigations and related administrative court litigation. Recent highlights include representing tech clients in mergers, abuse of dominance and unfair competition cases before the Hungarian Competition Authority. The team is led by Attila Kőmíves, a recognised expert in competition law, IP and regulatory matters.

The competition law team at Bassola Law Firm is recognised for its deep understanding of procedural intricacies, blending regulatory insights from enforcement and private practice. The group is well-versed in handling cases before the Hungarian Competition Authority, all levels of the judiciary and the European Commission. Their expertise spans cartel proceedings, merger clearances, legal opinions and compliance training. Led by Bálint Bassola, a seasoned practitioner with experience at global and regional firms as well as a former case handler at the Hungarian Competition Authority, the team is noted for delivering comprehensive and strategic competition law advice.

Deloitte Legal Göndöcz and Partners Law Firm’s competition team has successfully defended numerous clients in proceedings before the Hungarian Competition Authority and courts. Known for its expertise in the FMCG and energy sectors, the team combines legal, operational and business acumen, working closely with the firm’s litigation practice. They offer comprehensive compliance services, from contract assessments to implementing complex programmes, and provide cross-border competition and consumer protection law services. Co-headed by Péter Göndöcz, a seasoned advisor with commercial insight, and Anna Miks, a former competition authority case handler, the team is supported by Denisz Dobos, who specialises in litigation and M&A-related competition matters.

Oppenheim Ugyvedi Iroda’s dedicated competition practice offers extensive knowledge and experience in a range of antitrust matters from cartel investigations to state aid matters. The team is known for its focus on compliance matters and regularly represents clients in merger clearance cases before the Hungarian Competition Authority assisted by its strong relationships with the authorities handlers. Co-heading the team is István Szatmáry who offers over two decades of experience in competition law matters, and Péter Virág who has extensive experience in EU and Hungarian competition law, both in private practice and at the Hungarian Competition Authority. His practice focuses on antitrust cases, merger notifications, state advice and consumer protection investigations.

Partos & Noblet in co-operation with Hogan Lovells International LLP standalone competition law practice is highly regarded for its comprehensive expertise, advising clients across all areas of competition law, including merger control structuring and filings, high-profile cartel cases and multi-disciplinary matters involving the EU and regulatory advice. The practice benefits from seamless collaboration with other Hogan Lovells offices, forming cross-border teams for complex mandates. The team is led by Ákos Kovách, who regularly advises major international companies on significant cases and boasts extensive competition law expertise. András Multas provides valuable support on mergers, cartels and unfair commercial practices, representing clients effectively in both court and administrative proceedings.

Schoenherr Hetényi Ügyvédi Iroda is a standout in competition law, representing clients before the Hungarian Competition Authority in cartel cases, merger control filings, unfair commercial practice matters and sectoral inquiries. The firm has a robust follow-on damages litigation practice and provides bespoke compliance programmes and training. Anna Turi, head of the practice, is a recognised expert in EU and competition law, frequently leading high-profile cases, including cartel and merger control proceedings, and excelling in antitrust damages litigation. Márk Kovács brings extensive experience in cartel damages litigation and consumer protection matters, further strengthening the team’s comprehensive service offering.

Siegler Bird & Bird Ügyvédi Iroda’s competition and EU law team deliver comprehensive advice across Hungary and the EU, offering tailored support in compliance, disputes and investigations to align with clients’ strategic objectives. The team handles matters of all sizes and complexity, including leniency applications, merger filings, antitrust issues, unfair commercial practices and cross-border cases. Led by Dániel Arányi, an experienced practitioner in competition law disputes before the Hungarian Competition Authority, courts and the European Commission, the team is bolstered by László Zlatarov, known for his multi-jurisdictional expertise and regulatory insights, and Gábor Kutai, who excels in complex competition matters and litigation.

Szecskay Attorneys at Law offers broad industry representation and regularly acts before the EU Court of Justice and the European Commission. The team is highly regarded for its expertise in mergers, cartels, abuse of dominance and state aid matters. The head of the team, Anikó Keller, advises on competition compliance and represents clients in high-stakes cases before the Hungarian Competition Authority and courts. Sam MacMahon Baldwin serves as a pan-European antitrust advisor, handling complex EU law and state aid matters. János Vajda is noted for his expertise in antitrust litigation and cartel investigations, while Gábor Faludi, Jr. specialises in consumer protection and advertising law, representing major companies before Hungarian authorities.

Bán, S. Szabó, Rausch & Partners is a full-service firm advising foreign and domestic corporations across industries such as aviation, energy, public transport, trade and telecoms. The team handles merger clearances before the Hungarian Competition Office and the European Commission, as well as cases involving abuse of dominance, cartels, unfair competition, state aid, advertising and compliance programmes. Led by Álmos Papp, a seasoned expert with over two decades of experience, the team includes Gergely Szabó, known for handling high-profile cases, and Kinga Laszlo-Bolcskei, recognised for her work on complex competition matters.

Forgó, Damjanovic & Partners Law Firm is highly regarded for advising on merger control across sectors including pharmaceuticals, aviation, telecoms and energy, with extensive experience representing clients in merger control procedures. The team handles unfair trade practice cases before the competition and consumer protection authorities, as well as in the pharmaceutical sector before the National Institute of Pharmacies. They provide counsel on restrictive agreements during due diligence and contract negotiations and represent clients in cartel procedures. Led by Zoltán Forgó, an expert in merger control and unfair trade practices, and supported by Zsófia Füzi, known for her strong track record in competition matters.

KPMG Legal Tóásó Law Firm offers a one-stop shop for competition law, providing comprehensive advice on national regulations, consumer protection matters and antitrust investigations. The firm has a strong track record in key areas including anti-cartel, merger control, abuse of dominance, consumer protection and state aid. Co-headed by Bálint Tóásó, who brings extensive competition law expertise from his corporate background, and Fanni Márkus, known for her due diligence and compliance work in pharmaceuticals and ESG, the team supports clients in both daily operations and transactions.

Nagy és Trócsányi Ügyvédi Iroda is renowned for its representation in proceedings before national competition authorities and courts, covering merger control, cartels, abuse of dominance and related damage cases. The team regularly advises on merger control, cartel law, dawn raids, arbitrations and competition issues with data and consumer protection implications. Led by Orsolya Kovács, an expert in competition law and litigation, the team includes Balázs Karsai, specialising in state aid and cartel damages.

The competition practice at Réti, Várszegi and Partners PwC Legal handles a broad spectrum of matters, from unfair market practices to merger control and cartel defence, with a strong focus on compliance advisory. The team has recently gained prominence for its work in high-profile cartel cases before Hungarian and European courts. Co-heads László Réti and Péter Zalai bring decades of experience, excelling in antitrust, sector-specific regulation and compliance. Zsófia Straubinger adds significant expertise in competition, advertising and consumer protection law.

The competition team at Szabó Kelemen & Partners Andersen Attorneys is noted for its expertise in merger control and vertical and horizontal restraints, alongside implementing compliance programs for multinational and domestic clients. The practice is particularly active in industries such as commodities, agri-trading, finance, logistics and manufacturing. Team head Laszlo Andras Kelemen excels in merger and antitrust procedures before the Hungarian Competition Authority. Balázs Dominek and Áron Mátyás Somogyi bring strong capabilities in consumer protection, cartel investigations and corporate acquisitions.

VJT & Partners provides comprehensive advice on competition matters, including restrictive agreements, abuse of dominance, merger control, unfair practices and consumer protection, with strong representation before the Hungarian Competition Authority. The team also supports product launches, advising on selective distribution systems, commercial communications and advertising compliance, while offering insights on legislative amendments. Led by Andrea Belényi, a former senior figure at the Hungarian Competition Authority with over two decades of experience, the practice is distinguished by its deep regulatory expertise and strategic guidance.

Wolf Theiss Faludi Ügyvédi Iroda advises multinational corporations and local market players across industries such as agriculture, pharmaceuticals, FMCG, retail and TMT on a wide range of competition matters, including audits, compliance programs, antitrust investigations and private damages claims. The team excels in national and EU competition law, covering state aid, merger control, joint ventures and antitrust issues. Led by János Tóth, a seasoned professional in all areas of competition law, the practice benefits from Lajos Wallacher’s EU-focused expertise and Norbert Bálint’s skill in dawn raid investigations and representation before authorities.