Janson

Founded in 1950, Janson is one of Belgium’s oldest, most prestigious, and most comprehensive independent business law firms. With 75 years of legal excellence, the firm has established itself as a key player both nationally and internationally, renowned for the consistent quality of its services and its unwavering commitment to clients.

With nearly 100 multilingual lawyers, Janson provides cross-disciplinary legal expertise across all areas of business law, including corporate law, litigation, arbitration, energy law, intellectual property, labor law, tax, infrastructure, finance, and capital markets, among others. Its ability to combine technical precision, a deep understanding of economic issues, and a human-centered approach to law makes it a trusted partner for companies, institutions, NGOs, and investors worldwide.

A Recognized Expertise

The firm is particularly acclaimed for its excellence in litigation and dispute resolution, which lies at the very core of Janson’s identity. This expertise significantly enhances the team’s ability to provide sharp legal guidance on contractual arrangements and M&A operations. Many of Janson’s lawyers hold or have held academic positions and act as substitute judges and arbitrators in various courts and arbitral institutions. Every year, Janson is ranked and praised by international references such as Chambers, Legal 500, and Leaders League, reflecting the high standard of its daily legal work.

An International Presence

In addition to its offices in Belgium (Brussels, Ghent, and Mons), Janson has a branch in Kigali, Rwanda, strengthening its presence on the African continent. This strategic location allows the firm to serve a broad range of national and international clients with legal agility and strong business insight on all matters related to Africa. The Kigali office is fully supported by the Belgian teams and maintains strong ties with top-tier law firms and other professional service providers across Africa.