The 'Aegir' is based on our SOC 5000 design. Originally a deep water construction vessel, it has been converted by Ulstein to a fast sailing, DP offshore heavy lift vessel.

Heavy Offshore Construction

Designs that move the industry forward

Explore our portfolio of heavy offshore construction vessel design. 

Timas 1201 May 2022

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.

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. 

Yno 317 Nexans Electra in dock hall partly painted ULS 03508 DJI 20250919133134 0044 D
Feature

Behind the scenes: The construction of the cable-laying vessel Nexans Electra

The shipbuilding construction of Nexans Electra is approaching its final phase in the dock, before the comprehensive work continues quayside ahead of sea trials in spring 2026. How do you organise a staff of hundreds of workers, subcontractors and suppliers over several months to deliver the project on time and within budget? Join project manager Runar Toftesund at Ulstein Verft for a look behind the scenes.

Blue Ctrl personnel testing one of the operation stations
Update

New Managing Director at Blue Ctrl

The Ålesund-based company Blue Ctrl is making strategic changes to its leadership to strengthen its continued growth and position within the maritime technology sector. On 1 November, Marielle Furnes Mannseth will assume the role of Managing Director of the company.

Greg Mortimer's X-BOW cutting the seas, photo: Scott Portelli/Aurora Expeditions.
Feature

Aurora Expeditions: Redefining small-ship exploration with X-BOW® designs

Aurora Expeditions welcomed its third X-BOW cruise vessel, Douglas Mawson, in September 2025. “Many of our guests have travelled on other expedition ships before and immediately notice the difference. Whether it’s sleeping better at night, feeling less vibration during lectures, or spending more time in observation areas, the design truly enhances the experience,” says Katie Malone, Chief Marketing Officer at Aurora Expeditions, when commenting on the X-BOW design feature.

Employees from Ulstein Design Solutions AS ULS 01203 PES7868
Press Release

Ulstein Group awarded IDC’s ‘Teamwork of the Year 2025’

Ulstein Group received the 'Teamwork of the Year 2025 Award' at the IDC conference in Ålesund on 16 October 2025. The jury stated that: "Ulstein Group has built a culture where all disciplines are equally valued. The results speak for themselves: forward-looking vessels that meet both commercial and societal goals. Ulstein demonstrates how interdisciplinary collaboration can lead to groundbreaking solutions in the maritime sector, showcasing a strong ability to bring together designers, engineers, and key personnel in developing holistic concepts that combine technology, function, and aesthetics. Collaboration across disciplines and stakeholders – from local partners to international clients – drives innovation with global impact."

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
ONS logo
Event
24.08.2026 - 27.08.2026
Stavanger Forum Gunnar Warnebergsgate 13 4021 Stavanger
SMM logo
Event
01.09.2026 - 04.09.2026
Hamburg Messe und Congress GmbH Messeplatz 1 20357 Hamburg
Ul

Ulstein Design & Solutions B.V.