Investigations

In a context in which international and national legislation and regulation are in constant evolution, clients need a partner with a keen eye on exposure to legal and regulatory risks.

Our top-ranked lawyers offer advice and support to help clients navigate the legal and procedural aspects of domestic, international or cross-border investigations. We accompany clients during internal forensic investigations and also support them during on-site investigations made by regulators, dawn raids by competition authorities, or searches by judicial police.

Our clients

We represent a range of clients, from large companies and multinationals to mid-sized firms to entrepreneurs, as well as government authorities and non-profit organisations.

Our services

We provide advice on risk management and assist our clients on business investigations, including advising on all aspects of:

Financial regulatory and banking investigations
Compliance and risk investigations
Corporate governance investigations
Competition investigations
Antitrust investigations
Corporate crime investigations and prosecutions, including money-laundering and fraud
Data protection investigations
Labour investigations
Harassment and whistleblower investigations
Tax investigations

What others say about us

The team provides pragmatic and solutions-oriented advice."
"They have a very strong and deep bench.

Legal 500 2026

Dispute Resolution

What I consider as outstanding is Elvinger Hoss Prussen's ability to assess a complex matter from various angles and that the team also challenges us. Its advice is also always straight to the point.”
“Elvinger Hoss Prussen distinguishes itself through its ability to work as part of a large team of international lawyers. The team really thinks outside the box and works tirelessly to put the client's case forward.

Chambers Europe 2026

Dispute Resolution

Great responsiveness, deep knowledge and very good strategic understanding including in cross-border scenarios."
"Strong technical knowledge and pragmatism. Knowledge of the court.

Legal 500 2025

Dispute Resolution

Elvinger Hoss Prussen is a highly esteemed full-service firm with an established presence within the Luxembourg market. It is particularly active for clients from the financial sector in criminal law and misconduct cases, and it also assists clients with contractual disputes, debt enforcement proceedings, data protection litigation and shareholder disputes. The firm is popular with clients from the investment funds industry. The team additionally represents clients in constitutional and administrative proceedings.
"Elvinger Hoss Prussen is always up to date and advises on the most economical way to proceed, avoiding unnecessary litigation and costs.

Chambers & Partners Europe 2023

Dispute Resolution Luxembourg

The team provides a very professional and reactive service.

Legal 500 Europe 2023

Dispute Resolution Luxembourg

One of the best-regarded litigation teams in Luxembourg. On the matter we are working with them on, they have a team that comprises both litigators and transactional lawyers. They all work well together and it is a well-managed team providing a seamless service. They understand what is required when working with demanding Common Law lawyers and their clients!

Legal 500 Europe 2021

Dispute Resolution Luxembourg

Elvinger Hoss Prussen is a fantastic law firm in Luxembourg."
"Elvinger Hoss Prussen is one of the broadest law firms in Luxembourg."
"We were very happy with Elvinger Hoss Prussen."
"Elvinger Hoss Prussen is reliable and has a great reputation. We chose it because we were expecting that level of quality from the team. Our expectations were very high and they were met.

Chambers Europe 2025

Dispute Resolution Luxembourg