

Heavy Offshore Construction

Setting the standard for offshore construction vessels
Heavy Offshore Construction Vessels are the backbone of offshore projects. These versatile vessels are pivotal in pipeline laying, subsea installations, and heavy lifting operations. When it comes to designing and developing these cutting-edge vessels, Ulstein can be perfect partner. With decades of experience, we excel in crafting tailor-made solutions that maximize efficiency, safety, and environmental sustainability.
As pioneers in offshore vessel design, we remain committed to delivering innovative and reliable vessels that meet the evolving demands of the energy industry.

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.

OMS Group contracts Ulstein for two next-generation cable-laying vessels
OMS Group, a leading provider of subsea digital infrastructure, has signed contracts with Ulstein, a world-renowned designer and builder of advanced offshore vessels, for the design and construction of two cable-laying vessels.

Employed for half a century - and those who just started
What made a seasoned veteran, a newly qualified engineer and an eager apprentice choose Ulstein – and how do they see the future? Step into the everyday working lives of Adolf, Nicholine and Jonas, and gain an insight into a workplace in constant development, spanning everything from the very first working day to more than fifty years in the same company.

Launching and docking of yard numbers 322 and 323 at Ulstein Verft
At Ulstein Verft, the new year began with launching, lifting operations and docking of two offshore wind newbuilds.

Acta Pegasus delivered to Acta Marine: Ulstein design supports sustainable offshore wind operations
On 5 January 2026, Acta Pegasus was delivered by Tersan Shipyard to Acta Marine. This vessel is the first of four newbuild Walk-to-Work (W2W) Construction Service Operation Vessels (CSOVs) designed by Ulstein Design & Solutions AS for Acta Marine.

From Ulsteinvik, Norway to Ushuaia, Argentina: Global service in action
When expedition cruise vessels need urgent support at the edge of the world, Ulstein Power & Control delivers. Recently, Automation Engineer Markus Myklebust Myrstad travelled solo to Ushuaia, Argentina – the southernmost city on Earth – to ensure two ships stayed operational and ready for their next adventures.

Submarine telecommunications: The emerging lifeline of global connectivity
Telecommunications is no longer just a convenience; it is becoming the backbone of modern society. Secure and resilient communication networks are increasingly regarded as critical national infrastructure, sometimes even more vital than traditional energy resources. This shift reflects a world where data flow underpins everything from economic stability to military readiness.

Ulstein designs for the standardised naval auxiliary vessels
With over a century of shipbuilding heritage, Ulstein is a vital part of the Norwegian maritime cluster, synonymous with innovation in ship design and the engineering that follows. From offshore vessels navigating the harshest seas to expedition cruise vessels exploring the polar regions, the company has consistently proven its ability to deliver advanced, reliable platforms.
This experience forms the backbone as Ulstein now develops concepts for standardised naval vessels for the Royal Norwegian Navy. The ships will meet the Navy’s need for advanced, reliable and efficient vessel platforms.

Shipyard collaboration on standard auxiliary ships for the Norwegian Navy
The Royal Norwegian Navy has an ambition to acquire series‑produced, standardised naval vessels. This requires ships that are versatile, robust and future‑oriented, yet cost‑effective to build. Few shipyards in Norway can meet this challenge. Together, Larsnes Mek. Verksted (Larsnes) and Ulstein Group (Ulstein) have extensive experience and strong references in the design, construction, and maintenance of vessels. They collaborate to offer a solution that ensures the efficient production of naval ships.

Ulstein Verft commences work on next CSOV in series
The hull for yard number 323 arrived at Ulstein Verft on 6 December 2025. This marks another milestone in the construction of our next-generation offshore wind service vessel, which is the tenth TWIN X-STERN CSOV since 2022. The vessel is based on Ulstein’s proven SX222 design platform.
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.






