Willemen Groep NV is one of Belgium's largest family-owned construction groups, headquartered in Mechelen. With approximately 2,100 employees and an annual turnover of around 750 million euros, the company operates across four main business lines: Construction, Infra, Techniques, and Real Estate.
It specializes in civil engineering, road infrastructure, residential and non-residential building projects, technical installations, and real estate development. Willemen Groep provides comprehensive services from design and financing through construction to maintenance, emphasizing sustainability, innovation, and complex projects such as bridges, tunnels, airports, and eco-neighbourhoods.
Founded with roots in the 19th century, the group has grown through strategic acquisitions and now participates in major infrastructure initiatives across Belgium and internationally, including in Africa. It recently formed part of a consortium for the construction of a specialized facility in Mol, Belgium.