About

Provided by KLEYR GRASSO

With over twenty-five years of experience, our Corporate and Finance Litigation team is a recognized leader in the field, renowned for its commitment to excellence.


Our litigation lawyers bring exceptional expertise to a range of complex local and cross-border matters, including corporate, finance, commercial law disputes, and investment funds litigation. We handle shareholders' disputes, share transfer litigation, audit negligence cases, directors' liabilities, and disputes between investment funds and their stakeholders. Additionally, we manage the enforcement of financial collateral and exequatur proceedings, as well as the recognition and enforcement of foreign court decisions and arbitration awards.


Our lawyers are skilled negotiators and procedural experts, adeptly guiding clients through all stages of litigation—from pre-litigation to court applications—ensuring high-quality legal representation. During enforcement, our team handles cross-border cases, including attachment and exequatur proceedings.


Frequently appointed as lead counsel or arbitrator in significant arbitrations, we are a trusted partner for resolving complex legal issues both in and out of court. We proudly represent a diverse clientele, including states, multinational companies, audit firms, banks, investment funds, and individual shareholders and directors, providing tailored strategic solutions for their litigation needs.

Chambers Review

Provided by Chambers

Dispute Resolution - Luxembourg

1
Band 1

What the Team is Known For

KLEYR GRASSO is a pre-eminent law firm, well known in the market for its focus on high profile dispute resolution, including arbitration proceedings and the enforcement of arbitral awards. It represents both public and private entities hailing from the energy, private equity and engineering sectors. The law firm is active in shareholder disputes, liquidation matters, post-transactional litigation and criminal cases. Furthermore, KLEYR GRASSO advises on professional negligence and product liability litigation.

Strengths

Provided by Chambers

Notable Practitioners

Provided by Chambers

Marc Kleyr
E
Marc Kleyr
E
Eminent Practitioners

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.

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

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

Donata Grasso
2
Donata Grasso
2
Band 2

Donata Grasso's practice focuses on the financial industry, assisting clients with shareholder and investment fund disputes and liability claims. She is also active in the enforcement of arbitral awards.

It is always a pleasure to work with Donata Grasso. She has both strong expertise and a high level of technical skill.

Donata Grasso has very deep knowledge of Luxembourg national court proceedings and takes a very prudent approach.

Ranked Lawyers at
KLEYR GRASSO

Provided by Chambers
Filter by
Band

Luxembourg

Dispute Resolution

Marc Kleyr
E
Marc Kleyr
E
Eminent Practitioners
Donata Grasso
2
Donata Grasso
2
Band 2

Members

Provided by KLEYR GRASSO

Emilie WATY

Rosario GRASSO

Clients

Provided by KLEYR GRASSO

Ernst & Young S.A.

Ikodomos Holding S.C.A. (IKO Real Estate Group)

Industries

Provided by KLEYR GRASSO

Banking, Financial Institutions

Corporates