What we do

We are a major contractor in the global offshore energy industry, leading the way in subsea pipeline construction and transport, installation and removal of offshore facilities.

What we do
Activities

From offshore pipelaying to installing and removing offshore structures, Allseas excels in the design and execution of large and complex offshore projects worldwide. Activities include design, engineering, procurement, fabrication and project management.

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Offshore pipelay

Natural gas, oil, carbon capture and water.

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Platform decommissioning

Single-lift removal of the heaviest offshore facilities.

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Platform transportation and installation

A unique solution for the largest, heaviest offshore structures.

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Polymetallic nodule collection

Responsibly recover polymetallic nodules from the ocean floor.

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Nuclear

Powering energy-intensive offshore vessels and onshore industry

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Our projects worldwide
DolWin kappa

BalWin1 & BalWin2

Transport & installation of two 2GW converter stations for the BalWin1 and BalWin2 offshore grid connection systems in the German North Sea.

Pioneering Spirit
Norfolk Boreas

Norfolk Boreas

Transport and installation services for the UK’s Norfolk Offshore Wind Zone, one of the largest offshore wind developments in the world.

Pioneering Spirit
Gippsland platforms

Gippsland EPR

Major decommissioning job involving removal and transport to shore of 10 platforms within Australia's Gippsland Basin with combined weight of more than 48,000 tonnes.

Pioneering Spirit
Fortitude
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Filter projects by activities
Offshore pipelay
Platform decommissioning
Platform transportation and installation

See all projects

Filter projects by activities
Offshore pipelay
,
Platform decommissioning
,
Platform transportation and installation

See all projects