Jan De Nul Group – Offshore

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Design. Build. Connect. Jan De Nul Group shapes water and land. Worldwide. From complex offshore energy services, to large dredging and both land and coastal reclamation projects, to challenging civil construction programmes. Well integrated competences and investments lead to creative, sustainable and innovative solutions. In this way Jan De Nul Group delivers results that produce satisfied customers. Building a better future.

According to the industry’s needs

Jan De Nul Group offers a range of offshore services:

  • Seabed interventions
  • Rock installation works
  • Installation of offshore structures
  • Installation of cables and umbilicals
  • Dismantling and hoisting
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Jan De Nul Group offers specific services for the offshore energy market. Our extensive fleet of installation vessels is used for a variety of activities. We install offshore structures and protect them against erosion. However, we also disconnect and remove them if these structures are at end of life or up for replacement. Through an integrated approach from design to execution, we always ensure a creative overall solution, tailored to the client’s specific needs.

All these services can be offered as a comprehensive Engineer-Procure-Construct (EPC) package. Clients are increasingly seeking a complete, one-stop-shop solution for their projects – with an integrated approach from first designs to final installation. Jan De Nul Group’s deep expertise in marine design, procurement and construction engineering enables the Group to respond with a total package on an EPC basis, eliminating the risks for the client. Jan De Nul Group has an in-house engineering department that designs new equipment, or modifies existing equipment, as needed. Each offshore job brings new challenges. Vessels and equipment are constantly adapted to find the ideal solution to specific customer needs, even if it’s only for one particular project.


Jan De Nul Group already completed numerous prestigious offshore projects across the world such as the construction of the offshore wind farm Nobelwind off the Belgian coast, comprising 50 turbines of 3.3 MW each, or the installation of export cables for Race Bank offshore wind farm in the UK, for which brand-new trenching tools were designed and built in-house.

In 2018, Jan De Nul secured its first offshore wind projects outside Europe: the design and installation of the offshore wind parks Changhua and Formosa 1 Phase 2, the very first offshore wind farms in Taiwan. In the meantime, Jan De Nul also secured the Formosa 2 project in Taiwan, as well as the installation of the Coastal Virginia offshore wind farm in the USA.


Jan De Nul Group sets itself ambitious sustainability goals. Our Code Zero awareness programme brings together all our sustainable initiatives from the 10 focus areas. Our ambitions in this are clear:

  • Zero emissions: We actively reduce our ecological footprint.
  • Zero accidents: We are committed to a safe working environment, always and everywhere.
  • Zero breaches: We do not tolerate ethical or social infringements.
  • Zero waste: We look for circular solutions and ways to reduce our waste.

Code Zero is not a starting point for Jan De Nul Group, it is the route we have been taking for years. Now we are shifting up a gear. We go for zero! For a better future!

Our Philosophy: Imagine Think Act

Every employee at Jan De Nul Group works every day according to our ITA philosophy. Good preparation and operational control are key to our success. It is in our nature to work in this way. Quality, safety, improved processes and satisfied stakeholders: these things matter! With a no-nonsense mentality and in cooperation with our clients, partners and subcontractors, we all pursue the same objective.


Jan De Nul Group has a versatile and modern fleet of dredging and offshore installation vessels as a result of a determined investment policy in own equipment. Most of them are designed or improved internally. A very diverse fleet ensures that we can offer the ideal mix for realising any project. Jan De Nul Group’s fleet features high-tech multipurpose installation vessels, amongst others:

  • Rock installation vessels Simon Stevin and Joseph Plateau
  • The most hightech and powerfull cable-laying vessels kabelleggers Isaac Newton and Connector
  • Jack-up Installation Vessels Vole au vent and Taillevent
  • NextGen offshore installation vessels Voltaire and Les Alizés, both expected in 2022


Motivated maritime personnel will enjoy our pleasant working environment. The newest technologies, spacious and modern living areas and ditto recreational and media facilities on board provide a challenging working environment. Together with other colleagues, a pleasant working atmosphere is created. A holiday schedule of ‘6 weeks working, 6 weeks off’ and a good salary complete our offer.

“We enhance the lives of people, connect communities and improve infrastructure worldwide, through unique and innovative solutions.”

Facts about
  • Number of employees: 6.267
  • Sector: Civil, Offshore, Dredging, Maritime, Wind
  • Preferred educational level: Hbo
  • Field of study: Nautical
  • Preferred education: Nautical
  • Career level: Student, Starter, Young professional
  • Open vacancies: Check our vacancies on jobs.jandenul.com.