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Subsea Support

The 'Seven Viking' subsea vessel, photo: Christian Romberg

Designs that move the industry forward

Explore our portfolio of subsea support vessel designs.

SX121 - Island Performer.

The role of subsea support vessels in the offshore energy industry

Subsea support vessels encompass a variety of specialised ships designed to support various operations related to subsea construction, maintenance, and exploration. These vessels are tailored for specific tasks and environments in the offshore energy industry. 

Our designs give high functionality, large work deck and equipment-carrying capability and good seakeeping abilities to ensure high operability under harsh weather conditions, high transit speed and low fuel consumption.

Marine Automation System based on ULSTEIN X-CONNECT_Ulstein and Eggs

System integration

Cutting-edge solutions that optimise vessel performance and enhance operational efficiency. 

News & featured articles

Turning visions into realities motivates us to keep pushing for progress in the maritime industry. 

You can learn more about how we work with our customers to achieve their visions through our stories. 

E265 BG0127000 M HDRI Environment Sunset 4
Press Release

Ulstein designs pioneering heavy lift vessel for Penta-Ocean Construction

Penta-Ocean Construction, a prominent Japanese general contractor, has commissioned Ulstein Design & Solutions B.V. to design its new heavy lift vessel for offshore wind foundation installation. The customised ULSTEIN HX118 design will feature a 5,000-ton Huisman main crane and the ULSTEIN U-STERN™, which enables the installation of increasingly larger monopile foundations.

Motion compensated gripper frame
Press Release

Ulstein contributes to the integration of the motion-compensated gripper frame on Heerema's ‘SSCV Thialf’

In close collaboration with Heerema, Ulstein Design & Solutions BV has provided engineering services for integrating the innovative motion-compensated gripper frame (MCGF) on Heerema Marine Contractors’ ‘SSCV Thialf’. This technology is key to efficiently installing large monopiles for offshore wind farms, driving progress in the renewable energy sector. The semi-submersible crane vessel is essential in advancing offshore wind technology, aiding the construction of future wind farms essential for the global energy transition.

Energy

Events & conferences

We will be attending many events and conferences, which can be an excellent opportunity to meet. See if we are participating in any upcoming events you are going to. 

Sea Asia
Event
08.04.2025 - 10.04.2025
Marina Bay Sands, Bayfront Avenue 10, Singapore
Nor shipping
Event
02.06.2025 - 06.06.2025
Messeveien 8, 2004 Lillestrøm, Oslo
Marinetc china
Event
02.12.2025 - 05.12.2025
Shanghai New International Expo Centre, China
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Ulstein Design & Solutions AS

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Ulstein Design & Solutions B.V.