CSOV & SOV

Why choose Ulstein for your offshore wind fleet?

Ulstein is a leading designer of Construction Service Operation Vessels (CSOVs) and Service Operation Vessels (SOVs) for the offshore energy sector. Our vessels are known for their safety, comfort, efficiency, and high accommodation capacity.  

We have a proven track record of delivering high-quality vessels for the offshore industry, with numerous references and ongoing projects. Our CSOV/SOV vessels are the ideal choice for your offshore energy needs. You can build your vessel at our yard in Norway or with one of our trusted partner yards worldwide. Let us know if you have a preferred location for your next project.

Walk-to-Work capabilities you can rely on

Ulstein vessels are designed to ensure safe and efficient access to offshore locations. With advanced motion-compensated gangways and walk-to-work systems, they enable smooth personnel transfers between the ship and offshore installations — even in challenging conditions.

To support sustainable operations, our vessels can be equipped with hybrid battery propulsion and energy storage systems, reducing both emissions and fuel costs. They are also prepared for alternative fuels, enabling carbon-neutral performance.

Our SOV and CSOV designs are built on Ulstein’s proven hull innovations — the X-BOW®, X-STERN®, and TWIN X-STERN® — delivering superior seakeeping, fuel efficiency, and operability.