LAWYER PROFILE
Markus Kellner

Markus Kellner

Europe 2026

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Ranked in 2 practice areas

About

Provided by DSC Doralt Seist Csoklich Rechtsanwälte

Europe

Practice Areas

Markus Kellner, a partner at DSC, specializes in banking law (and litigation), bringing together extensive experience and expertise across the entire spectrum of banking law.

Markus has built an outstanding reputation as the go-to adviser for all retail banking law matters. He assists, e.g., in the preparation and revision of B2C contracts, including general terms and conditions, for all retail banking products, including retail loans – the backbone of any bank’s business. Markus is, furthermore, at the forefront of guiding clients through banking product development and market entry of new innovative services. As a seasoned litigator, he is frequently engaged in complex banking litigation, having successfully argued numerous cases before the Austrian Supreme Court and the ECJ, particularly cases relating to unfair contract clauses.

Clients particularly appreciate Markus for his efficiency and pragmatism in resolving the most intricate legal issues, coupled with his unparalleled legal expertise and in-depth understanding of the banking industry.

Beyond his role at DSC, Markus serves as the editor of the leading commentary on Austrian banking contract law, the editor of the premier journal on Austrian banking law, and has authored numerous specialized articles. As a sought-after lecturer, he imparts his knowledge of banking law at the Vienna University of Economics and Business, Danube University Krems, and the University of Liechtenstein.

For more information, visit www.dsc.at.

Chambers Review

Provided by Chambers

Chambers European Guide

Litigation - Austria

Band 3
Band 3

Individual Editorial

Markus Kellner has robust experience representing Austrian banks in banking litigation, including bondholder and loan-related disputes. He also assists with construction disputes and is well equipped to act for clients before the Austrian Supreme Court and ECJ.

Banking & Finance: Regulatory - Austria

Band 3
Band 3

Individual Editorial

Markus Kellner assists large banking clients with contentious regulatory mandates, regularly appearing before both Austrian and European courts in relation to class actions and claims against consumer protection agencies.

Strengths

Provided by Chambers

  • Markus Kellner brings calm and structure to even the most heated disputes and has an excellent instinct for when to push, when to negotiate and when to pause.

    LitigationChambers European Guide
  • Markus Kellner brings a rare blend of legal depth, strategic foresight and calm authority to the table. He is always two steps ahead.

    LitigationChambers European Guide
  • Markus Kellner is always a pleasure to work with. He is efficient, very knowledgeable and always has the answer to our questions within seconds.

    LitigationChambers European Guide
  • Markus Kellner is very diligent, good at digging into matters and technically excellent.

    LitigationChambers European Guide
  • Markus Kellner is a strategic thinker with a remarkable sense for timing, tone and legal positioning. He has an outstanding grasp of the law and structures complex matters with clarity and foresight.

    LitigationChambers European Guide
  • Markus Kellner combines specialist precision with the ability to see the bigger picture. His guidance is strategic, well balanced and always commercially sound.

    Banking & Finance: RegulatoryChambers European Guide

Ranked Individuals at DSC Doralt Seist Csoklich Rechtsanwälte (10)

Austria

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