Johan Ceyssens

Willemen Infra is a construction group that offers a wide range of building activities, including civil projects, industrial construction, residential and utility projects, and road and airport construction. The private company is based in Ghent, Belgium. The Belgian company follows the lean philosophy to eliminate waste and improve project quality and customer value. Willemen Real Estate, a subsidiary of the company, develops and executes energy-efficient and high-quality apartment buildings, PPS and mixed-use projects, student and service flats, and other residential projects across Belgium. The company's customer-oriented approach and collaboration with real estate agents are the keys to its success. The company was founded in 1949, and Tom Willemen has been the CEO of the company since 2021.

Willemen Construct NV is a Belgian construction company that combines the experience of an established value with the dynamics of a young company. The private company is based in Mechelen, Belgium. Willemen Project Finance is the knowledge center for project financing within the Willemen Group, providing support to all companies within the group for financing, strategy, and management of complex tendering processes. The CEOs are Tom Willemen, Johannes Willemen, and Marc Jonckheere. The company was founded in 2018 as a result of a merger between Willemen General Contractor and the building department of Kumpen.

Kumpen NV provides building and construction services. It also offers infrastructure solutions focusing on roads and drainage. The company was founded by Constant Kumpen in 1945 and is headquartered in Hasselt, Belgium.