Avocats à la Cour

What the team is known for: Strong in financial sector disputes, including failed investment schemes and regulatory issues. Corporate litigation is a further area of activity. Clients include private companies and public authorities.

Strengths (Quotes mainly from clients): "The lawyers are responsive and have huge expertise in litigation." 

Notable practitioners: Marc Thewes is well known for financial and corporate litigation. He also advises on public law matters, notably public procurement and PPP.




Thewes & Reuter has a reputation for real estate litigation and regulatory work, although recent work also includes financial services litigation. Marc Thewes has ‘the ability to look at the global picture’.

Thewes & Reuter advises clients on a range of real estate matters including contentious issues. Marc Thewes and Pierre Reuter head the department.

Pierre Reuter advises public employers on day-to-day labour advice, dismissal procedures and employment litigation.

Thewes & Reuter provides ‘excellent service’ and has ‘sound knowledge’ of IP matters. Clients include online retailers, pharmaceuticals companies and the firm also receives referral work from international law firms.

What the team is known for: Esteemed litigation boutique noted for its expertise in public sector disputes, including public procurements and PPPs. Also highly active in complex commercial and financial services litigation with cross-border aspects.

Notable practitioners: Marc Thewes is a highly regarded litigator who leads the firm's public sector practice, and is also particularly adept at IP litigation. Clients appreciate his ability to provide "pragmatic and strategic solutions".


What the team is known for: Particular focus on financial sector litigation, covering domestic and multi-jurisdictional disputes. Also offers strength in public procurement and other public contract cases, including PPP-related disputes.

Strengths: "Very good and effective in what we need to be done. We are very, very happy with the team."

Notable practitioners : Senior partner Marc Thewes comes recognised as "very earnest and thorough" by clients. His litigation experience is bolstered by further expertise in IP, IT and public business law.


Thewes & Reuter is noted for its ‘excellence in real estate litigation’. The firm also regularly handles financial services litigation and receives plaudits for its ‘excellent knowledge of the public procurement area’. Marc Thewes and Pierre Reuter are the main contacts of the practice.

The ‘excellent and responsive’ Pierre Reuter handles work for private and public sector employers across a range of matters. The team also has substantial experience advising senior managers in disputes with their employers.

Thewes & Reuter is particularly accomplished at handling construction disputes, where the firm is praised for its ‘knowledge of the market and decisions taken by courts in other EU countries’. Marc Thewes and senior associate Thibault Chevrier are ‘very efficient and quick to reach a profound understanding of complex affairs’

Dispute Resolution

The 'responsive and efficient' team at·Thewes & Reuter·provides 'clear and detailed advice' across a range of public law and financial services disputes. The 'excellent'··Marc Thewes·specialises in public sector litigation and continues to handle numerous matters for national railway company, CFL, including recently concluding an administrative law issue relating to its pension scheme. The 'very approachable'·Pierre Reuter·leads on many of the major financial and corporate disputes handled by the firm, and is appreciated by clients for his 'calm demeanour' and 'honest evaluation of all the facts and the likelihood of success'.

Real estate and construction

Benefiting from 'deep knowledge of the Luxembourg real estate industry and legal framework',·Thewes & Reuter·is particularly accomplished in relation to litigation arising in the sector, as well as on any public law related matters, including planning and building permits.·Marc Thewes·is an 'excellent business partner for any issue in relation to real estate'.


At·Thewes & Reuter,·Pierre Reuter·is able to leverage his broad-ranging litigation expertise to provide expertise on complex employment disputes. Reuter also regularly handles advisory work on behalf of public sector clients


What the team is known for: Handles a broad range of disputes on a domestic and multi-jurisdictional level. Has a particular focus on litigation in the banking, finance and investment sectors. Also offers strength in matters involving the public sector. Acts on liability mandates and shareholders' disputes, as well as construction-related matters.

Notable practitioners : Marc Thewes gains recognition from market commentators for his strength in insurance, banking and liability disputes. He offers further experience in shareholder disputes and insolvency proceedings.


What the team is known for : Active for public sector clients in procurement disputes and media law litigation. Also advises private companies on financial sector disputes, contractual litigation and criminal investigations. Offers experience of arbitration cases.

Strengths An interviewee describes the practice as "a well-respected boutique firm." A client highlights the team's "expertise, availability and client-mindedness."

Dispute Resolution

At Thewes & Reuter, founding partners Marc Thewes and Pierre Reuter have a significant focus on litigation impacting clients in the private and public sectors. Thewes specialises in public procurement and other public contract disputes, while Reuter displays 'high-level litigation skills' for clients engaged in banking and finance litigation.

Real estate and construction

Thewes & Reuter has a 'high level of real estate experience and knowledge of Luxembourgish court procedures' and is consequently particularly strong at handling disputes arising in the sector, as well as on any public law-related matters, including planning and building permits. Marc Thewes is the main contact.


At Thewes & Reuter, Pierre Reuter has 'substantial experience and high-level litigation skills' and Marc Thewes is noted for his public sector employment expertise work - which continues to see him advise government-owned mail and telecommunications company, POST Luxembourg across a raft of different employment matters.