Our Team

Judith Feldner

Partner – Area: Competition Law

Judith Feldner is a partner at our Vienna office and a member of our competition law practice group. She represents clients in all areas of competition law. She focuses on cartel cases before the European Commission and the Austrian courts as well as on the coordination of leniency applications before of the European Commission and national competition authorities. She also advises clients on compliance programmes and internal investigations (including e-discovery measures).

Judith regularly provides dawn raid trainings for clients. Other main area of her work are merger control proceedings, particularly coordinating multi-jurisdictional filings and structuring joint ventures.

Judith Feldner also helps companies implement whistleblowing systems. She is a member of the Austrian Chapter of Transparency International for whistleblowing.

In addition to her practice at E&H, Judith Feldner teaches antitrust law at the University of Graz.

Judith holds a law degree from the University of Graz (Mag iur) and also studied at the Universitat Autònoma de Barcelona. After her studies, she worked at the University of Graz as an university assistant at the Department of European Law.

Judith advises in German and English and also speaks Spanish and French.


Judith is recommended by Chambers & Partners and Legal500 for “Competition Law”.

“Judith Feldner is particularly knowledgeable in cartel cases and the coordination of leniency applications, also advising on compliance programmes and internal investigations.”
Legal500 2020

“Ms Feldner provides excellent expertise and shows incredible efforts to support us with the highest-quality legal advice. For complicated competition law cases she is the first one you want to talk to.”
Chambers & Partners 2020

“kompetente und teamfähige Anwältin, wird im Markt immer sichtbarer” & “inhaltlich sehr gut, reißt sich einen Hax’n aus” (Wettbewerber)
JUVE 2019

“high expertise” (Client)
Chambers & Partners 2019

“Up and Coming” & “She is extremely skilled, very open and easy-going and she has exceptionally good relationships with clients.”
Chambers & Partners 2018

“Very good and client-oriented.”
Legal500 2018


  • Feldner/Bara, Die Personengleichheit zu 50% als Zusammenschluss – wie anders ist Österreich? NZKart 2020, 74-77
  • Feldner/Cavada, Der Leitfaden zur Transaktionswert-Schwelle, ÖZK 2018, 174-179
  • Feldner, § 9 Abs 4 KartG – Die praktische Bedeutung des neuen Schwellenwerts, ÖZK 2017, 149-155
  • Feldner/Thalhammer, Hausdurchsuchungen durch die BWB und die Bedeutung des Untersuchungsgegenstands, ecolex 2016, S. 892-895
  • Feldner/Thalhammer, Die Hausdurchsuchung im Kartellrecht, Manz Verlag Wien, 09/2016
  • Thalhammer/Feldner, Chapter: Austria, in The Essentials of Merger Review, American Bar Association (2013)
  • Thalhammer/Feldner, EU Competition Law and the Energy Sector 2012, in The European Antitrust Review 2013
  • Thalhammer/Feldner, EU Competition Law and the Energy Sector 2011: Time to Switch into Higher Gear, in The European Antitrust Review 2012 – a Global Competition Review special report
  • Thalhammer/Feldner, Dürfen Anwälte Kartelle ihrer Kunden verraten?, Die Presse 04.10.2010
  • Thalhammer/Feldner, Rätseln über das Anwaltsgeheimnis, Die Presse 2010/04/03