BESIX is a Belgian multinational contractor founded in 1909 that operates across construction, concessions, and property development. The company employs more than 12,000 people across 25 countries, with workforces speaking at least 50 languages. It has established itself as one of the world's leading international contractors.
The company's operations span three main divisions. Its contracting division handles complex construction, infrastructure, and marine works. The concessions division manages concessions and participates across the full project lifecycle, from financing through operation and maintenance. The real estate and property development division oversees projects from financing and design to operation and maintenance.
BESIX maintains in-house engineering capabilities in geotechnical engineering, concrete technology, and advanced planning tools including BIM and Systems Engineering. The group operates through several specialist subsidiaries including BESIX Infra, Jacques Delens, Vanhout, Franki Foundations, and BESIX Watpac, each delivering integrated solutions across the company's core sectors of buildings, infrastructure, marine works, industry, and environmental projects.