THE CHALLENGE
Offshore projects are growing in complexity
New offshore wind turbines are becoming larger and are being installed further offshore; subsea cable and pipeline networks more condensed; environmental regulations stricter; and the security of subsea infrastructure is increasingly important.
This growing complexity is causing delays and increasing risks and costs for offshore projects.
Offshore developers, energy operators and cable manufacturers are therefore seeking service providers that can connect and maintain their offshore infrastructure safely, sustainably and efficiently, delivering projects on time and with minimal risk.
SMART SOLUTIONS
At N-Sea, we do things smarter
By understanding the challenges our customers face, we provide smart, fit-for-purpose solutions for subsea infrastructure projects.
Our bespoke solutions focus on specific subsea expertise and capabilities, such as survey, UXO ID & clearance, cable repair & installation, or IRM, construction & decommissioning. With our team of experienced, multidisciplinary offshore professionals, we combine these technical competences and capacity into a single, integrated project.
The result is a smart, fit-for-purpose, safe and sustainable solution that improves project efficiency and reduces risks for our customers.
2025 – 2026
Inch Cape Offshore Wind Farm cable installation
North Sea, UK
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Integrated engineering, clearance and cable installation scope
One single interface to the customer
Route clearance scope optimized and reduced
Leading the next generation of offshore infrastructure
employees
multipurpose offshore vessels
in revenue
Where we operate
Operating at the
heart of the energy transition
We serve customers in the international offshore energy industry with subsea infrastructure projects across offshore wind, offshore oil & gas and interconnectors.
Offshore wind
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In offshore wind, we provide smart, fit‑for‑purpose subsea solutions for new offshore wind farms, including cable‑route engineering, survey and clearance, and the installation of inter‑array and export cables. We also deliver subsea IRM and construction solutions during the operational phase of an offshore wind farm.
Offshore oil & gas
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For offshore oil & gas subsea projects, we support customers with tailored subsea survey, IRM, construction & decommissioning solutions for subsea pipelines, manifolds, umbilicals and platform jackets.
Interconnectors
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For interconnectors, we provide our customers with smart, integrated solutions for cable‑route survey and clearance, cable installation and subsea IRM, including emergency‑response repairs.
End-to-end subsea services provider
Providing smart solutions throughout every phase of the offshore asset life cycle
Development & planning
During the development and planning phase of a new offshore asset, we provide customers with the essential site characterisation data they need. We process and analyse acquired geophysical, seismic, geotechnical and environmental data in a timely, transparent and concise manner, accessible anytime and anywhere.
Construction & installation
For the site clearance of new offshore assets, we provide dedicated and specialised equipment deployed from our vessels to identify and remove UXO, boulders and debris. For HVAC and HVDC subsea power cables we offer tailored, one-stop-shop transport & installation (T&I) or engineering, procurement, construction and installation (EPCI) solutions. We also support customers with subsea construction solutions, such as subsea pipelines and manifolds.
Operation & maintenance
During the operational phase of an offshore asset, we provide tailored, one-stop shop subsea inspection, repair, replacement, maintenance (including emergency response) and construction solutions. This includes services for subsea power cables, umbilicals, pipelines, platform jackets and wind turbine foundations, as well as the storage of subsea cables and associated accessories.
Decommissioning
For the end-of-life phase of subsea infrastructure, such as pipelines or manifolds, we deliver safe and environmentally responsible subsea infrastructure decommissioning, including abandonment and removal. We reinstate project sites in a safe and environmentally sustainable condition.
SHEQ & ESG
Driving sustainable operational excellence
At N-Sea, Safety, Health, Environment and Quality (SHEQ) are not just priorities, they define who we are. Our commitment to the ‘First Time Right’ principle means we strive to deliver work that is correct, complete and safe, minimising risk, avoiding rework and protecting people, assets and the environment.
Would you like to learn more about our 10 Life Saving Rules, our industry-leading quality standards and ESG principles?
