Arendt & Medernach is a popular choice for large multinational corporates, funds and banks seeking to resolve complex matters, often with an international complexion. Clara Mara-Marhuenda, who is able ‘to keep her focus in tense situations’ is across many of these areas of law both in relation to conventional litigation and arbitration and is consequently involved with great regularity in many of the cases handled by the team. Philippe-Emmanuel Partsch is the ‘brain and spirit’ behind the firm’s EU and competition law practice, often appearing before regulatory authorities, EU and national courts in related disputes. Team head François Kremer is ‘a very smart lawyer who combines a great legal mind with a sense of strategy and wit,’ specialising in international matters, including asset tracing and corporate disputes. Other recommended practitioners include Philippe Dupont, who excels in financial services disputes, the ‘terrific’ Christian Point, who focuses on real estate and construction disputes and Jean-Luc Putz, who heads up the business crime and white collar function at the firm.

Drawing upon ‘strong connections in Luxembourg, but with an international approach and vision,’ BSP is well-positioned to advise on high-profile financial and corporate disputes, as well as regularly having a key role in large-scale investor-state arbitrations or enforcement matters relating to international arbitrations. Team head Fabio Trevisan is a ‘star in cross-border litigation and arbitration’ and is at the forefront of the highest-profile mandates handled by the firm, with clients benefiting from his ‘deep understanding of how the courts in Luxembourg work.’ Laure-Hélène Gaicio-Fievez is also a core member of the team, guiding clients through the entire process, from pre-litigation to the enforcement of decisions.

With ‘deep knowledge of the Luxembourg market and practices,’ and also benefiting from access to international know-how through the firm’s global network, Clifford Chance provides a ‘highly strategic’ service to clients engaged in complex domestic and cross-border disputes. The scope of the work is broad, cutting across many substantive areas of law including employment, IP and real estate, although a sizeable proportion of instructions relate to financial and shareholder disputes. The ‘very experienced and knowledgeable’ Albert Moro combines excellent legal know-how with an empathetic approach to dealing with clients, thereby providing ‘outstanding’ representation before the domestic courts and in international arbitration. Ada Schmitt co-heads the team with Moro and is noted for her ‘strong technical knowledge and clear strategic vision,’ including in relation to regulatory investigations and financial crime-related work.

Elvinger Hoss Prussen provides ‘insightful advice’ to private and public sector entities seeking a thorough and robust resolution to their cases, both through conventional litigation and arbitration. Appreciated for his ‘analytical approach,’ Pierre Elvinger is a ‘top-flight litigator’ across commercial, civil and employment disputes and heads the team alongside the ‘outstanding’ Marc Elvinger. Elisabeth Omes has an excellent ability to explain ‘difficult issues of Luxembourg law in the cross-border context,’ and is well regarded by banks and funds across a range of complex disputes, offering insight through her previous role at the domestic financial regulator.

KLEYR GRASSO combines ‘responsiveness and technical skills’ to good effect for clients engaged in complex commercial and business litigation. Appreciated for her ‘practical and commercial advice,’ Donata Grasso is central to the success the firm has in much of this work, regularly taking the lead in complex domestic and cross-border shareholders’, banking and investment funds disputes. Alongside his duties as managing partner, Marc Kleyr maintains an active disputes practice, displaying a ‘dedication to winning cases that is simply unrivalled,’ particularly in relation to shareholders’ and insolvency-related litigation. Rosario Grasso co-heads the team alongside Donata and Kleyr and is particularly effective at handling white-collar cases. Pascal Sassel joined Brouxel & Rabia Luxembourg Law Firm in September 2023.

The ‘efficient and friendly’ team at Linklaters is best-known for its aptitude at handling funds and banking-related litigation, where it ‘excels in providing out-of-the box thinking.’  Team head Guy Loesch provides ‘strategic advice with added-value’ both in relation to full-scale litigation, as well as in the context of regulatory investigations for financial services entities. As part of his litigation prowess, Loesch is also well-versed in bringing and defending urgent injunctive relief claims. Katrien Baetens represents clients across a myriad commercial and finance disputes, including in relation to international arbitration matters. Louis-Eudes Giroux counsels clients in commercial litigation, arbitrations or investigations and is noted for his expertise in providing ‘balanced and pragmatic’ representation in multi-pronged disputes, including in relation to white-collar criminal allegations.

Drawing upon substantive expertise across many other practice groups throughout its full-service offering, the ‘experienced and pragmatic’ team at Loyens & Loeff provides ‘tremendous legal acumen and great strategic sense’ to clients bringing or defending cases across myriad commercial litigation and international arbitration matters. Véronique Hoffeld has the legal knowledge and strategic and procedural sense to effectively manage cases for large multinational corporates and financial services, from pre-litigation through to hearings and enforcement of judgments. Henri Dupong is also a key member of the team, as a result of his work representing high-net-worth individuals and banks across a range of corporate and white-collar matters.

Forming one of the lynchpins of MOLITOR Avocats à la Cour SARL's full-service offering, litigation is very much in the firm’s DNA, ensuring that clients receive a ‘commercial, responsive and user-friendly’ service throughout the life-cycle of a litigation procedure. A good deal of the work relates to financial and corporate disputes, an area that many of the lawyers have particular expertise, including on matters involving a multi-jurisdictional angle. Paulo Lopes Da Silva provides ‘very clear and accurate technical legal advice’ to banks and funds across a range of commercial litigation, and is appreciated for his ‘understanding of the practical inter-relationships between the law and procedure, and legal authorities.’ Philippe Thiebaud  specialises in insolvency, corporate and fund litigation and is noted for his ‘strong understanding of cross-border issues.’ The firm also excels in managing disputes utilising ADR techniques, with the ‘outstanding’ Armel Waisse and Jacques Wolter noted for their arbitration skills, with Wolter also an accredited mediator. Managing partner Michel Molitor co-heads the team alongside Da Silva.

Appreciated for the ‘creative thinking in the way they prepare and produce arguments,’ Thewes & Reuter has a market-leading reputation for handling complex public sector disputes. In this context, under the guidance of the ‘highly skilled’ Marc Thewes, as well as handling administrative law matters, the team is regularly instructed in high-profile public procurement disputes. Associate Hicham Rassafi-Guibal also has ‘extensive knowledge of public law matters,’ impressing clients and referring law firms as a result of his ability to provide ‘highly strategic advice.’ Pierre Reuter co-heads the overarching litigation team alongside Thewes and is appreciated for his ability ‘to quickly grasp and analyse the essential points of a dispute,’ particularly in the context of multi-jurisdictional financial disputes.

The ‘creative’ team at Allen & Overy Luxembourg has ‘in-depth knowledge of litigation both on procedural matters and substantive tactics and strategy,’ and is a popular choice among banks, funds and multinational corporates in high-stakes domestic and multi-jurisdictional disputes. Team head Thomas Berger has ‘deep knowledge of process,’ as well as a strong appreciation of the underlying contractual documentation, and excels at handling civil and criminal litigation involving financial institutions, often involving multi-pronged litigation and regulatory investigations.

Combining ‘a deep knowledge of the Luxembourg court system and processes’ with excellent legal and sectoral knowledge, Bonn & Schmitt is particularly visible handling domestic and multi-jurisdictional disputes affecting the banking and investment management sector. Cedric Bellwald is ‘efficient and knowledgeable’ in his representation of local and international clients, including across white collar crime and criminal law litigation. Other key members of the team include Alain Grosjean, who is adept at using conventional and ADR techniques to settle corporate and shareholder’s disputes, in particular, and Alex Schmitt, who is regularly appointed as Luxembourg expert on issues of banking and finance law arising in the course of international court or arbitration proceedings.

Drawing upon a number of practitioners with ‘valuable expertise in civil and corporate litigation matters,’ Brucher Thieltgen & Partners is well-placed to effectively and robustly represent clients, utilising a blend of procedural and strategic know-how and an up-to-date knowledge of case law. Leveraging his ‘broader knowledge of the financial sector,’ Nicolas Thieltgen is often involved in complex litigation surrounding financial products, as well as a considerable volume of shareholder disputes. ‘Highly knowledgeable’ team head Marie Bena is regularly engaged in real estate and construction litigation.

The ‘knowledgeable and pragmatic’ team at NautaDutilh provides a ‘high quality service’ to clients across a range of high-stakes commercial litigation and arbitration. As part of his eclectic mix of work, which also includes shareholder and insolvency litigation, the ‘proactive and commercial’ Antoine Laniez regularly handles high-profile investor-state disputes on behalf of both private and public sector entities, most regularly in the context of enforcing the awards which have been granted. Vincent Wellens co-heads the team alongside Laniez and is often involved in contentious IP and IT disputes, as well as public law-related matters.

At Baker McKenzie, 'very tenacious' team head Annie Elfassi has earned the status of a ‘trusted attorney’ for clients from a range of sectors as a result of her expertise across myriad domestic and multi-jurisdictional disputes, where she acts on her own as well as alongside lawyers from throughout the firm’s extensive international network. Key areas of strength include work in relation to shareholder and general commercial contract disputes, as well as advice on enforcement and debt collection.

Formed at the beginning of 2021, under the guidance of Oliver Reisch, the ‘professional and experienced’ team at DLA Piper Luxembourg has quickly gained momentum in the market, representing firmwide clients as well as standalone entities, as claimants and defendants in domestic and cross-border litigation. The team is noted for its ‘solutions-oriented’ advice, acting across myriad commercial and business litigation, as well as some work in the tech and e-commerce space, a particular specialism of Reisch’s.

Led by ‘seasoned litigator’ Mario Di Stefano, DSM Avocats à la Cour provides ‘solutions-oriented and good strategic advice’ to clients, primarily within the real estate and construction sector, bringing or defending claims within the civil and administrative courts, relating to, inter alia, commercial leases, public procurement, urban development and alleged defects.

Luther S.A. provides a ‘very user-friendly and proactive service’ to domestic and international clients across a range of commercial litigation, including shareholder disputes, debt recovery matters and contentious insolvency. The ‘exceptional’ Robert Goerend, who is particularly skilled at handling shareholder disputes, ‘constantly looks for a winning edge – on the technical side of laws and documents, but also on the tactical side of psychology.’ Mathieu Laurent heads the team.