Leveraging a ‘high level of legal expertise and strategic thinking’, as well as being able to tap into the firm’s global resources, A&O Shearman is well versed at handling domestic and cross-border litigation for banks and investment funds, in particular. As well as handling commercial litigation, including in relation to downstream and upstream-related asset management disputes, the team is also a market-leader handling regulatory enforcement/investigations work. ‘Very hands-on and pragmatic’ team head Thomas Berger is at the forefront of the most significant work handled by the team and is appreciated not just for his pure litigation instincts but also his ‘excellent understanding of the Luxembourg regulatory environment in the banking sector’.

Drawing upon a ‘profound knowledge of Luxembourg law and the Luxembourg courts’, as well as vast expertise across EU legislation, Arendt & Medernach is well placed to represent domestic and international companies across a wide range of disputes. ‘Seasoned’ team head Clara Mara-Marhuenda is skilled at developing ‘effective strategies’ for fund and financial services clients, among others, including in the context of complex shareholder disputes, enforcement of foreign arbitral awards and with regard to contentious insolvency. Under the guidance of Jean-Luc Putz, the firm is also very active defending financial services clients in regulatory and white-collar matters, including as it relates to money laundering and fraud offences. Other key practitioners include Christian Point, for administrative law disputes; Philippe-Emmanuel Partsch, for EU and competition law; François Kremer for ADR and mediation; Sandrine Margetidis-Sigwalt, for work in the insurance and public sectors; and counsel Danil Nikolaev.

The ‘exceptional’ team at Brucher Thieltgen & Partners delivers a ‘responsive and efficient’ service for clients across a wide range of civil, administrative, criminal and employment-related matters, both at a local level as well as in multi-party cross-border mandates. Nicolas Thieltgen is recognised for his skill at representing clients in finance and corporate disputes, in particular, where his procedural expertise also includes a very active arbitration offering. Marie Bena co-heads the team alongside Thieltgen and is noted for her skill at resolving employment and real estate-related disputes.

Combining ‘strong technical expertise with a practical approach’, BSP provides ‘clear and effective advice’ to clients across a wide range of complex commercial, financial and corporate litigation, invariably involving multi-jurisdictional issues. Appreciated for his ‘truly pragmatic approach’, team head Fabio Trevisan is key to much of this work, and is also highly skilled at advising on the enforcement of arbitral awards. Laure-Hélène Gaicio-Fievez guides clients throughout the contentious process, from pre-litigation to the subsequent enforcement of judgment. Elodie Vincent is also skilled at risk management strategies, as well as shareholder disputes.

Combining ‘great market knowledge and a commercial driven approach’, Clifford Chance works on its own, as well as frequently alongside practitioners across its international network of offices, to provide a ‘solutions-oriented’ service to clients engaged in domestic and multi-jurisdictional litigation. Drawing upon ‘vast knowledge of the Luxembourgish legal system’, and substantive knowledge in key areas, including corporate and employment law, Albert Moro is a popular choice among clients, both in conventional litigation and arbitration. Moro co-heads the team alongside Ada Schmitt, who is very adept at handling work for funds and banks, in particular, including in the context of regulatory probes.

Co-headed by the vastly experienced Marc Elvinger and Pierre Elvinger, and able to draw upon the expertise of a ‘very strong and deep bench’, Elvinger Hoss Prussen handles a broad range and volume of conventional litigation and arbitrations. The team is particularly adept at representing asset management clients, working with industry sector experts at the team to effectively combine ‘procedural knowledge with know-how on the subject matter’. Laura Arpetti handles some of this work and is also very skilled at helping clients enforce court decisions and arbitral awards in Luxembourg. Elisabeth Omes is also very adept at fund-related work, as well as regularly acting for commercial and private banks in high-profile domestic and cross-border disputes.

Drawing upon procedural skills utilising conventional litigation and ADR techniques as well as significant substantive subject matter knowledge, including in the finance and funds sectors, KLEYR GRASSO is ‘particularly impressive in the area of commercial litigation’, from both a domestic and cross-border context. ‘A strategic and solid advocate’, Marc Kleyr remains very active and can call upon a vast reservoir of institutional knowledge in the field, regularly acting on shareholders disputes, as well as having niche expertise in relation to professional negligence actions, particularly in relation to claims against auditors. Fairly atypically among many of the leading business law firms highlighted in the ranking, the team also has significant exposure to criminal law mandates, with Rosario Grasso very adept at handling a range of white-collar work, including as it relates to allegations of money laundering. The ‘assured and competent’ Donata Grasso is recognised for her skill at handling arbitration, complex debt recovery and enforcement proceedings, as well as a range of general commercial disputes. She rounds out the team at a leadership level alongside the ‘very responsive’ Emilie Waty, who has developed a particularly strong reputation on the arbitration front.

Combining ‘analytical depth with practical litigation tactics’, Linklaters is particularly well regarded for its skill at representing banks and funds in high-stakes disputes. ‘Exceptional’ team head Guy Loesch is at the forefront of this work, and is also adept at assisting clients on the enforcement of foreign judgments, including arbitral awards. Appreciated not only for his deep knowledge of civil law and litigation but also his ‘keen awareness of the commercial realities at stake’, Loesch is also noted for his defence of auditors in professional negligence proceedings. The ‘reactive and strategic’ Louis-Eudes Giroux is key to the team’s success for financial institutions, including those facing regulatory investigations.

Working on its own as well as collaborating well with other law firms, Loyens & Loeff has a strong reputation on domestic and international litigation, combining procedural and strategic expertise with substantive prowess across a wide range of practice areas. ‘Terrific’ team head Véronique Hoffeld is particularly skilled at handling corporate and finance-related litigation, including shareholder disputes, as well as being adept at handling contentious insolvency matters. Henri Dupong is also well versed at handling a range of commercial litigation, in addition to having a thriving white-collar practice on behalf of both institutions and individuals.

Combining ‘deep legal expertise, strategic foresight, and a client-first ethos’, MOLITOR Avocats à la Cour SARL provides ‘practical and forward-looking solutions’ to clients facing jeopardy in cross-border and domestic proceedings. Co-headed by Michel Molitor and Paulo Lopes Da Silva, the team has also gained a strong reputation for its flexible approach, both to billing arrangements as well as through the effective use of ADR techniques. Armel Waisse is appreciated for her ‘ability to navigate highly complex matters with clarity and precision’, running the gamut from corporate and financial litigation, through to insolvency proceedings and investor disputes. Philippe Thiebaud excels at handling insolvency, corporate and fund litigation matters.

Baker McKenzie punches above its weight, working in a coordinated fashion, both with other internal practice groups, as well as on big-ticket cross-border mandates with lawyers from throughout the firm’s vast international network of offices. ‘Outstanding’ team head Annie Elfassi has been key to the team’s recent success, and demonstrates a trusted adviser approach which places as much of an emphasis on pre-litigation or risk management strategies as on full-blown litigation. Valérie Kopéra left the firm in November 2025.

The ‘highly experienced and knowledgeable’ team at CMS Luxembourg has been increasingly visible in the market following Antoine Laniez‘s recruitment in June 2024 from NautaDutilh. Appreciated for his ‘creative and practical’ approach to handling litigation and arbitration, Laniez has strengthened the team, adding increased heft behind its ability to handle complex corporate disputes, as well as broadening its skill set to include cross-border recognition and enforcement proceedings, including in cases involving sovereign states. Counsel Florence Remouchamps, who joined the firm at the same time as Laniez, is also a key member of the team, including on both arbitration and enforcement cases.

Working collaboratively with colleagues on matters with a German nexus, as well as regularly picking up referral work from other international law firms, the ‘dedicated and responsive’ team at Luther S.A. is well versed at handling a range of complex matters for clients in the real estate, asset management and energy sectors, among others. ‘Courageous and creative’ team head Mathieu Laurent is particularly skilled at handling disputes involving complex finance transactions, as well as on matters involving funds. Raphaël Schindler is also a key contact and has niche expertise at advising on disputes related to directors’ and officers’ (D&O) liability insurance.

NautaDutilh currently deploys a multi-disciplinary approach to litigation following the departure in June 2024 of former team head Antoine Laniez to CMS Luxembourg. IP/TMT expert Vincent Wellens now co-heads the team alongside corporate and restructuring expert Romain Sabatier. Wellens is also very active at handling administrative proceedings and corporate investigations, as is the ‘extremely skilled’ Ottavio Covolo. The team also enhances its resources by utilising the litigation skills of several Brussels-based lawyers who regularly handle Luxembourg-related matters.

Established in January 2024, business law boutique Alma LED Lux has quickly made an impression as a result of its ability to handle ‘complex disputes with both technical precision and a very pragmatic approach’. Co-heads Federico Venturini and Stefano Tesone combine ‘intellectual acumen and a business-oriented approach’ to good effect for local and international clients engaged in an eclectic mix of corporate, financial, and real estate disputes, including those involving a nexus to Italy.

Led by Olivier Reisch, DLA Piper Luxembourg delivers a ‘high-quality legal service’ to standalone and existing institutional firmwide clients bringing or defending claims across a wide range of corporate and commercial disputes, as well as on the enforcement of foreign judgments in Luxembourg. The ‘solutions-oriented and commercially minded’ Carole Rhein is skilled at handling work throughout the litigation life-cycle, including for real estate clients in disputes as well as at a contractual stage through the implementation of effective risk management strategies.

Drawing upon substantial front-end contractual knowledge as well as considerable procedural litigation nous, DSM Avocats à la Cour is best known for its work in the context of real estate and construction disputes. Team head Mario Di Stefano is key to this work, as well as also having some expertise in relation to administrative disputes.

At White & Case S.à r.l., Alexandre Hublet is the principal contact for Luxembourg-related litigation. As well as continuing to represent Amazon in disputes before the local courts with vendors and sellers, Hublet also regularly provides contentious insolvency law input on large-scale cross-border restructuring matters, where he regularly works alongside colleagues throughout the firm’s vast international network.