Competition in Hungary

Allen & Overy

Allen & Overy is regularly involved in high-profile cartel investigations and has experience in advising on matters spanning across the banking and telecoms sectors. The team represents Magyar Telekom in a high-profile inquiry by the Hungarian Competition Authority concerning a mobile network sharing arrangement with Telenor Hungary. Counsel Tibor Szántó heads the team, which includes senior associate Attila Kőmíves.

Andrékó Kinstellar

Andrékó Kinstellar handles major cartel investigations, as well as merger control, state aid and unfair trade mandates. Péter Vörös heads the competition and dispute resolution practice and represented Vodafone’s Hungarian subsidiary in an unfair commercial practices case. Associates Dávid Zlati, who joined from Hegymegi-Barakonyi and Partner Baker & McKenzie Attorneys-at-Law , and Orsolya Staniszewski are also key contacts.


CMS is commended for its ‘practical and client-friendly approach’. It is acting for two banks in a major antitrust investigation concerning alleged unlawful information sharing. Practice head Dóra Petrányi, who has 'an active market presence with strong communication skills’ is recommended, as are senior associates Nóra Jekkel, who has ‘strong client-handling skills’, and Szabolcs Szendrő, who is 'a very creative competition lawyer ’.


Dentons handles a range of cartel, state aid and abuse of dominance cases, as well as compliance audits. Porsche Hungaria, Nestlé, Budapest Airport and Chemium are key clients. Of counsel Tihamér Tóth and counsel Tünde Gönczöl jointly head the team. Associate Áron Károlyi-Szabó is also recommended.

Hegymegi-Barakonyi and Partner Baker & McKenzie Attorneys-at-Law

Hegymegi-Barakonyi and Partner Baker & McKenzie Attorneys-at-Law regularly advises on state aid, antitrust, cartel and merger control cases and successfully acted for Tesco Hungary in a complex cartel investigation. Managing partner Zoltán Hegymegi-Barakonyi leads the competition and antitrust practice with Márton Horányi. Senior associate András Horváth is another name to note.

Lakatos, Köves and Partners

Lakatos, Köves and Partners’ ‘very experienced team’ has 'a good understanding of business needs’. It handles merger control, cartel and state aid cases, and advised Vodafone on the competition issues relating to its acquisition of Liberty Global’s operations in Hungary. Iván Sólyom, who 'manages cases in a very reassuring manner’, heads the team with Eszter Ritter. Ádám Máttyus is also a key contact.

Oppenheim Ugyvedi Iroda

Oppenheim Ugyvedi Iroda is experienced in handling cartel investigations and state aid matters and is regularly involved in antitrust and merger control cases. It successfully represented international wholesale chain Metro in proceedings before the Hungarian Competition Authority. Team head Gábor Fejes is recommended, as are Zoltán Marosi, who is ‘experienced’, and associate Balázs Csépai.

CERHA HEMPEL Dezső & Partners

Cerha Hempel has 'a very business-friendly approach’ and provides ‘quick and thorough answers’ and is active across cartel, antitrust and merger cases. It advises MKB Bank on a range of competition matters and advised the Hungarian subsidiary of Metrohm on vertical agreements. The ‘experienced’ team is led by Tamás Polauf and includes senior attorney Márton Kocsis.

DLA Piper

DLA Piper Hungary handles a range of cartel matters, merger filings, state aid investigations and unfair commercial matters. The team successfully represented WHB Group and Építő-és Épületkarbantartó in merger clearance proceedings. Senior counsel István Szatmáry heads the team and senior associate Péter Virág is also noted.

Schoenherr Hetényi Ügyvédi Iroda

Schoenherr Hetényi Ügyvédi Iroda is involved in cartel cases and is experienced in handling follow-on damages cases and compliance mandates. The team is acting for Fressnapf in judicial review proceedings pertaining to a Hungarian Competition Authority decision. Recently promoted counsel Anna Turi heads the team and associate András Nagy is also noted.

Szecskay Attorneys at Law

Szecskay Attorneys at Law is praised for its ‘tailored, fast and pragmatic support’. The team is representing a major manufacturer of medical imaging products in cartel proceedings initiated by the Hungarian Competition Authority. Team head Anikó Keller is ‘exceptional’ and János Vajda has ‘expert knowledge’. Sam MacMahon Baldwin, who joined the team in 2018 from Danish firm Gorrissen Federspiel, delivers ‘practical and operational advice’. Senior associate Miklós Boronkay is also a key figure

Forgó, Damjanovic & Partners Law Firm

Forgó, Damjanovic & Partners Law Firm advises on merger control matters, restrictive agreements, cartel procedures and unfair trade issues. Unipetrol is a key client. Team head Zoltán Forgó and Zsófia Füzi are recommended.

KLART Szabó Legal

KLART Szabó Legal handles a range of merger control, compliance, state aid and unfair competition mandates, and it is experienced in advertising and consumer protection cases. Árpád Hargita and Gábor János Dudás are the key contacts.

Partos & Noblet in co-operation with Hogan Lovells International LLP

Partos & Noblet in co-operation with Hogan Lovells International LLP’s ‘client focus is exceptional’. It handles cartel cases as well as complex merger control cases; counsel Akos Kovách, who has ‘robust knowledge and wide experience’, represented Digi before the Hungarian Competition Authority in merger control proceedings.

Réti, Várszegi and Partners PwC Legal

Réti, Várszegi and Partners PwC Legal  regularly advises on unfair commercial practices, in addition to complex merger and cartel cases. Péter Mezei heads the team.

Siegler Bird & Bird Ügyvédi Iroda

Siegler Bird & Bird Ügyvédi Iroda  regularly handles merger control matters and antitrust compliance issues. Heineken, Szemp Air and MOL are key clients. Special counsel László Zlatarov and senior associate Dániel Arányi are recommended.

Andersen Legal

Szabo Kelemen & Partners Attorneys acts for a range of financial services, manufacturing, commodity trading and insurance sector clients on merger control and cartel investigations. Team head László Kelemen, Balázs Dominek and associate Áron Somogyi are key members of the team.

VJT & Partners

VJT & Partners’ competition team is led by former executive Hungarian Competition Authority officer, counsel Andrea Belényi, who joined the team in 2018. Google and 4Life Direct are clients.

Wilkinson European Community Jurist Office/Squire Patton Boggs (US) LLP

Wilkinson European Community Jurist Office/Squire Patton Boggs (US) LLP handles a range of cartel, abuse of dominance, consumer protection and unfair commercial practices disputes and is experienced in acting for financial services sector clients including Budapest Bank and Erste Bank. Senior attorney Lajos Wallacher and senior associate Artúr Tamási head the team.