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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. 

Powerpoint photos Per Eide Studio Ocean Sea Waves coast 21
Update

Frigate decision

The Norwegian government has announced its decision to purchase British frigates. Ulstein has collaborated with the Germany-based TKMS in an effort to secure the contracts.

Naval
Hull arrival Nexans Electra CLV at Ulstein Verft 0062 MARTIN GISKEGJERDE OCLIN
Press Release

Outfitting of the Nexans Electra CLV begins at Ulstein Verft

The hull of the state-of-the-art DP3 cable-laying vessel Nexans Electra arrived at Ulstein Verft on 5 July 2025. This marks the commencement of the outfitting and completion phase of the vessel. Upon completion in 2026, she will feature a split turntable on deck capable of holding up to 10,000 tonnes of cable, an under-deck turntable with a 3,500-tonne cable capacity, and a fibre optic tank with a 450-tonne capacity.

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. 

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.