Jan De Nul Fortune
Amounts mentioned are estimates based on public sources and can vary depending on methodology (income, assets, debt) and update date.
Jan De Nul Group is a leading company in the field of dredging and construction works, based in Aalst, Belgium. Founded as a family business, it successfully established itself against powerful competitors such as Dredging International and Baggerwerken Decloedt, in particular thanks to a successful appeal before the Council of State during works for the port of Zeebrugge in the 1970s. The Jan De Nul family is one of the wealthiest families in Belgium with a fortune exceeding 3.5 billion.

The company has experienced significant growth since then, becoming a global player active in regions such as Australia, the Philippines and Singapore. In 1999, the group took the lead in the industry with the commissioning of the Vasco da Gama, the world’s largest dredging vessel, representing an investment of more than 100 million euros.
Among its major projects are the renovation of an oil terminal for Statoil and dredging works in the port of Tuticorin in India. The group also led a consortium for the excavation of the Deurgangckdok in Antwerp, which will be the world’s largest port lock.
Main Activities
- Dredging: Jan De Nul is globally recognized for its dredging capabilities, executing complex maritime projects to create and maintain ports, and deepen waterways.
- Construction: In addition to dredging, the company distinguishes itself through the delivery of civil infrastructure works, including the construction of buildings and maritime infrastructure.
- Offshore Energy: The group also facilitates offshore energy production, playing a key role in the development of offshore wind farms.
Jan De Nul Logo
Fleet and Resources
Jan De Nul’s fleet includes several types of dredging vessels, such as cutter suction dredgers and trailing suction hopper dredgers. Their flagship vessel, the Vasco da Gama, is an example of innovation in dredging technology.
Jan De Nul vessel
Notable Projects
- Panama: The group was heavily involved in the duplication of the Panama Canal, a complex and contentious project for which it had set aside a provision of 103 million euros.
- Egypt: Another major project is the widening of the Suez Canal, a major mission to improve this strategic waterway.
- Antwerp: The excavation of the Deurgangckdok, the largest port lock project, demonstrates their expertise in large-scale works.
Global Expansion
De Nul family
Jan De Nul continues to expand its operations, constantly hiring staff to meet the growing demand for international projects**. In 2011, the group employed 5,416 people, of whom 40% were Belgian. This expansion is partly due to their full project portfolio and a policy of constant renewal of their fleet and equipment.** This success has enabled Jan De Nul to build a wealth exceeding 3.5 billion euros and is proof of a fine Belgian achievement.
Controversial Context
In 2014, the group found itself at the center of a controversy regarding sand extraction activities in the Philippines, accused of threatening natural coastal defenses. Although the court ultimately dismissed the complaint against the group, this episode highlights the challenges Jan De Nul faces in its international operations.

Jan De Nul Group thus establishes itself as a world leader in various sectors ranging from dredging and civil construction to offshore energy, with a notable presence in many international markets. The group maintains a steady growth trend, strengthened by strategic investments and sound management of its resources and fleet. Jan De Nul has an estimated fortune of more than 3.5 billion euros and is one of the wealthiest Belgians, ranking in the TOP 10 in Belgium.
Recent News about the De Nul Family
In 2025, the De Nul family continues to strengthen its wealth through strategic investments and innovative projects. Pieter De Nul, at the head of the group, announced the construction of a new real estate complex in London, aimed at meeting the growing demand for luxury residences in the British capital. This project, estimated at more than 20 million euros, is scheduled for completion in 2025 and is expected to generate significant long-term revenues.
Jan De Nul offices
Moreover, the De Nul family has strengthened its philanthropic commitment by creating a foundation dedicated to education and support for young entrepreneurs in Belgium. This initiative aims to encourage innovation and provide essential resources to the next generations of business leaders.

Conclusion
The De Nul family’s fortune, estimated at more than 3.5 billion euros in 2025, is the fruit of a rich family history and a series of astute strategic decisions. From its modest beginnings in the 1970s to its current status as a world leader in dredging and construction, Jan De Nul Group has successfully navigated economic challenges and changing market dynamics. Through intelligent diversification of its activities and strategic investments, the De Nul family continues to strengthen its position and grow its wealth, making it one of the most influential and wealthiest families in Belgium.
