LAWYER PROFILE
Marc Kleyr

Marc Kleyr

Europe 2026

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Ranked in 1 practice area

About

Provided by KLEYR GRASSO

Practice Areas

Corporate, finance and insolvency litigation, restructuring and insolvency.

Career

Marc KLEYR has been a co-founder and Managing Partner of the firm for 30 years, since its inception.

Senior Partner in the firm’s Corporate and Finance Litigation department, he is highly regarded in the market for his experience in commercial and corporate litigation, with a special focus on shareholders’ litigation, finance litigation, insolvency-related litigation and audit negligence claims.

Marc has a unique expertise in multi-jurisdictional and cross-border cases. Over the last 20 years, he has been involved in all major high-profile corporate finance and insolvency-related litigation cases in Luxembourg.

Professional Memberships

Luxembourg Bar Association, INSOL, UIA, R3.

Chambers Review

Provided by Chambers

Chambers European Guide

Dispute Resolution - Luxembourg

Eminent Practitioner
Eminent Practitioners

Individual Editorial

Managing partner Marc Kleyr has a strong focus on shareholder disputes and professional negligence actions. He is a popular choice among clients from the financial services and engineering industries.

Strengths

Provided by Chambers

  • Marc Kleyr combines deep experience with a bold, confident approach that inspires trust in complex litigation matters.

    Dispute ResolutionChambers European Guide
  • Marc Kleyr is a key member of our team. He has an outstanding command of our case and is fully committed to it.

    Dispute ResolutionChambers European Guide

Ranked Individuals at KLEYR GRASSO (12)

Luxembourg

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