3 D image of the new trenching support vessel Jan De Nul ordered 2 2

Jan De Nul exercises option for second trenching vessel based on Ulstein design

Jan De Nul has exercised the option for a second trenching vessel based on the customised vessel design developed by Ulstein Design & Solutions AS. The decision confirms the confidence in the design platform and strengthens the collaboration between the two companies.

Published
21 September 2026
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The vessel will be based on the same customised design that Jan De Nul selected earlier for its next-generation trenching operations: Jan De Nul contracts Ulstein Design & Solutions AS… | Ulstein Group

Developed from a proven subsea vessel platform, the design has been tailored to support the demanding requirements of offshore trenching projects while offering flexibility for future operational needs.

Building on a proven concept

The vessel has been developed to support extensive subsea trenching operations, including the installation and protection of subsea power cables, pipelines and telecommunication infrastructure. With substantial deck space and deadweight capacity, the design provides a robust platform for efficient operations in offshore environments.

Rolf Petter Almli, Sales Manager at Ulstein Design & Solutions AS, comments:

We highly appreciate Jan De Nul's continued confidence in Ulstein and our vessel design solutions. The exercise of this option is a strong endorsement of the work carried out by both organisations and demonstrates the value of combining proven design platforms with customer-specific capabilities.

Designed for flexibility and future requirements

The vessel design is engineered around a modular concept that can support a broad range of offshore activities. For Jan De Nul, the vessel has been specifically configured for subsea trenching operations, ensuring precision, operational efficiency and adaptability. The ULSTEIN X-BOW® hull form contributes to improved seakeeping performance, enhanced onboard comfort and reduced fuel consumption.

Supporting lower-emission operations

Like the first vessel, the new unit will be equipped to support Jan De Nul's ambitions for reducing environmental impact. The vessel design accommodates the company's Ultra-Low Emission vessel concept (ULEv), including advanced emission-reduction technologies and the capability to operate on biofuel and green methanol.

Strengthening a growing partnership

The option exercise marks another milestone in the relationship between Jan De Nul and Ulstein Design & Solutions AS. By selecting a second vessel on the same design platform, Jan De Nul reinforces its commitment to efficient, future-oriented offshore solutions while building on a design concept tailored to its operational requirements.

Contacts:

Ulstein Design & Solutions AS
Rolf Petter Almli
Email: [email protected]
Tel: +47 901 05 668

Jan de Nul 
Heleen Schellinck
Email: [email protected]
Tel: +32 471 34 24 77

About Jan De Nul:

Jan De Nul shapes water, land and energy around the world, addressing some of the most important challenges of our time. From the rising sea level to the energy transition, from polluted soil to sustainable construction: the company engineers solutions that future-proof our world, known for their complexity and high stakes. Its Can-Do people focus on four areas of expertise: Offshore Energy, Dredging Solutions, Construction Projects and Planet Redevelopment. Together, they all work towards one shared goal: to improve the global quality of life for generations to come. 

About Ulstein Group:

Ulstein Group is a family-owned pioneer in naval architecture, ship design, and maritime innovations, headquartered in Norway. Ulstein Design & Solutions AS develops award-winning ship designs and system solutions, offering services such as engineering, project management and on-site shipbuilding assistance.

Get in touch

Rolf Petter Almli DSC5166 comp bw

Rolf Petter Almli

Description
Sales Manager
Affiliation
Ulstein Design & Solutions AS

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3 D image of the new trenching support vessel Jan De Nul ordered 2 2
Press Release

Jan De Nul contracts Ulstein Design & Solutions AS trenching vessel design

Ulsteinvik, Norway, 10 March 2026  – Jan De Nul has selected a customised vessel design from Ulstein Design & Solutions AS for its latest addition to its offshore fleet. The realisation of the trenching vessel marks a milestone in the collaboration between two leading maritime innovators. The vessel is scheduled for delivery in 2028. The basic design is based on a robust and globally proven subsea vessel design.