János Vajda specializes in competition law, advertising law, litigation law, banking and capital market regulatory matters.


Throughout his career János gained extensive experience in competition law matters, litigations, banking and capital market regulatory matters. János lectured at the Eötvös Loránd Faculty of State and Legal Sciences in seminars on financial law for 7 years. He holds a legal psychology MsC, which he received from the University of Maastricht.


János is fluent in English.

"A clear strength of the firm is thinking outside of the box. They are extremely efficient and flexible and tend to come up with very clever arguments to deal with developments in the proceedings."

Legal500 2023, Dispute Resolution


"The lawyers had the necessary knowledge and experience to handle our case and acted throughout in a timely manner and with extreme proficiency."

Chambers Europe, 2023, Competition/Antitrust


"They were really good at adapting extremely quickly to the unique nature of the case, they hit the ground running and are extremely calm, accurate, and give good-quality advice."

Chambers Europe, 2022, Competition/Antitrust


"It is a very good team with excellent leaders. All the colleagues’ knowledge is extraordinary. They are members – and leaders – of several industrial associations."

Legal500 2021, Competition


"They are service-minded, outstandingly good professionals, have an insight into doing business and have confident expertise and extensive knowledge of regulatory and case law, both locally and in the EU."

Legal500 2021, Competition


The team "knows our business and our industry very well, which is an important prerequisite to give ad hoc and valuable competition law advice."

Chambers Europe, 2021, Competition/Antitrust Department




  • Legal500, 2015 - 2023, Competition (Team): Tier 2




  • Competition Law Firm of the Year, 2016 - Wolters Kluwer Lawyers Awards Hungary


Bar Memberships:


  • Budapest Bar Association (since 2008)


Other memberships:


  • Hungarian Advertising Association
  • Hungarian Advertising Self-Regulatory Board
  • Maastricht University, Legal psychology MsC (2020-2021)
  • Károli Gáspár University, BA psychology (2017-2020)
  • Budapest College of Communication and Business, Public Relations Communication (2009)
  • J.D., Eötvös Loránd University, Faculty of Law (2004, Summa cum laude)