

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.

Ulstein Digital joins Veracity by DNV partner network to advance sustainable maritime operations
Ulstein Digital, a newly established subsidiary of Ulstein Group, has officially joined Veracity by DNV’s partner network. The partnership enables seamless integration between Ulstein’s data platform and Veracity by DNV, automatically transferring validated MRV (Monitoring, Reporting, and Verification) data into DNV’s verification service. This automation significantly reduces manual workload, saving time and resources for maritime operators.

Megamas contracts Ulstein Design & Solutions AS for cable-laying vessel design
4 June 2025: Megamas Resources announced a ship design contract with Norway-based Ulstein Design & Solutions AS to start the engineering phase on a fibre-optic cable-laying vessel (CLV) planned to be built at the Lloyd Werft Bremerhaven GmbH.

Mastering walk-to-work operations
The total number of walk-to-work (w2w) vessel designs and redesigns by Ulstein now count 22, of which 14 are currently in operation. In average, these vessels perform repair and maintenance on more than 5,000 turbines – every year!
That makes a stunning 95,000+ gangway connections!

Totally three Ulstein ship designs win Work Boat World Awards for 2024
Three of Ulstein's designs are among the Work Boat World Awards 2024 winners. Tamhae 3 clinched the 'Best Large Research Vessel' award, Olympic Boreas was named 'Best CSOV', and JSD 6000 took home the 'Best Derrick Layer' accolade from Baird Maritime/Work Boat World. These awards celebrate the best vessels in their categories, judged on design, build quality, and functionality.

Norwegian Frigate Programme: The only European alternative with major ripple effects for the Norwegian maritime industry
The collaboration between thyssenkrupp Marine Systems (tkMS) and Ulstein is a strategic boost for the Norwegian maritime industry, tkMS being one of four remaining contenders in a major maritime project. This is the only European alternative that includes building in Norway.

Six months in: Olympic Notos achieves perfect client satisfaction score
Olympic's latest CSOV, the 'Olympic Notos', has been operational for six months since her delivery, and the feedback is outstanding.

Three times a lady: Ulstein’s Subsea Rock Installation Vessels
Subsea rock installation is essential for offshore projects, and for over twenty years, Ulstein Design & Solutions BV has been leading the way in vessel design.

Striking the balance
In today's evolving maritime industry, ship owners encounter challenges and opportunities. What options do you have when markets are unpredictable? Sometimes it's all about striking that perfect balance.

Putting the X in eXpedition: The rise of X-BOW ships
"When a viral Drake Passage video surfaced showing huge swells crashing over the bow of Quark Expeditions' Ocean Explorer, it wasn't just the power of the Southern Ocean that made waves.
The real star? The ship's cutting-edge X-BOW design."
This quote comes from Alex Loizou at Mundy Adventure.
With his permission, the whole story continues below.
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.


