Allseas has executed over 275 projects and installed more than 20,000 km of subsea pipeline worldwide. Project scopes range from straightforward pipeline installation jobs to contracts involving design, engineering, fabrication, installation and procurement, and large subcontracted scopes for diving, dredging, rock dumping. Click on the world map to find out more about Allseas’ current and challenging past projects.

Current projects


Pioneering Spirit’s  maiden pipelay project is 900 km of 32-inch pipeline through the Black Sea from Anapa in Russia to Kiyikoy in Turkey, where depths reach 2200 m.

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Rota 3

Engineering, procurement, installation and commissioning of a 298-km gas pipeline connecting the Comperj refinery near Rio de Janeiro with the Santos Basin offshore Brazil.

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Brent Delta topsides removal

Engineering, procurement and removal of the 24,000 t Brent Delta topsides and transfer from Pioneering Spirit  to Iron Lady  and load-in to dismantling yard in the UK.

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Project history