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About Janson

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Our history

Janson is a multidisciplinary and multilingual business law firm founded in 1950. Today, the firm has around one hundred lawyers, most of whom have completed their university studies with an LL.M or another university degree from Belgium or abroad.

Throughout its expansion, Janson has remained independent of other national and international law firms, but has maintained close ties with similarly committed independent law firms throughout the world.

In 2004, the law firm van Drooghenbroeck-Lagneaux, specialising in social law, merged with Janson. In order to be closer to its clients in the Flemish region, the firm opened an office in Ghent in 2011. The law firm Favart, based in Mons since 1957, joined Janson in 2017.

Our work

Janson has extended its expertise to all sectors of economic activity, especially finance, real estate, communication, energy, automotive, insurance, health, environment...  

The firm assists Belgian and foreign clients, companies, individuals, public institutions, foundations and (international) non-profit organisations. 

Most of the partners and senior associates also hold academic positions or are members of the editorial boards of various legal journals. 

Brussels: + 32 2 675 30 30
Ghent: +32 9 240 77 20
Mons: +32 65 22 10 00
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