The Belgian company Jan De Nul has achieved an increase in turnover for the fourth year in a row. A large part of this is attributable to the maritime sector.
Compared to 2024, Jan De Nul achieved growth of 6% last year. Overall, turnover amounted to € 4.24 billion, which is a record for the fourth year in a row. EBITDA also followed this trend, rising from € 777 million to € 812 million. Net profit jumped by 12% to € 458 million.
The maritime sector accounts for around three quarters of turnover. At Jan De Nul, this includes the construction of offshore wind farms, the laying of submarine cables for energy transportation, the maintenance of access channels and the expansion of port infrastructure.
The remaining turnover is attributable to construction, renovation and development projects. In 2025, Jan De Nul completed the infrastructure work for the Belgian F-35A fighter jets at the Florennes airbase in the southwest of the country – ahead of the planes’ arrival on Belgian soil in October 2025, according to the company. Other major projects include the Oosterweel link, the new transport hub at Brussels Airport, the energy island in the Belgian North Sea and the development of the new “Malt” district in Mechelen.
“Jan De Nul remains active worldwide with maritime infrastructure projects, covering both offshore energy and dredging works,” said CFO Jan Neckebroeck. “The various construction, remediation and redevelopment projects have also contributed to achieving another record turnover. Jan De Nul’s strong financial position, including a net debt-free position, allows us to invest in new vessels, land-based equipment and research. We are prepared for the future.”
The company is involved in a total of 298 projects in 31 countries. According to the shipping company, the high turnover is due to this broad geographical spread. However, Europe accounts for more than 50%, mainly due to a large portfolio of offshore wind energy projects. In Africa, the construction of a new port in Senegal made a significant contribution to sales growth. The Middle East, North and South America and Asia also remain important markets.
€ 1 billion in investments
Jan De Nul is making extensive investments to strengthen its position in the energy sector with five new ships currently under construction for the laying and protection of submarine cables for energy transmission. In doing so, the company is responding to the global need for energy security, according to a Jan De Nul press release. “This is prompting various regions around the world to develop a balanced energy mix and interconnect their energy networks.”
The company is also continuing to invest in the expansion and renewal of its dredger fleet and is focusing on remediation techniques to deal with complex contamination, such as that caused by the chemical PFAS. The fleet of cable laying vessels for use in wind farms is also being expanded with new builds and conversions. As a long-standing partner of the Belgian government, the company is also continuing to focus on the development of infrastructure projects. Current investments for the coming years amount to well over €1 billion.
Despite this wave of investment, Jan De Nul has been net debt-free since 2014. As a privately managed company, Jan De Nul consistently chooses to reinvest its profits back into its own business. This financial strength is one of the most important assets.
“But our greatest asset remains our global team of more than 8,800 World Builders. We continue to invest in them as well,” said CFO Neckebroeck. “We do this, among other things, through our four internal programmes on safety, personal development, sustainability and health, launched in 2025. Our company’s culture makes our positive impact tangible worldwide.”
