Allseas
Allseas is a Swiss-headquartered offshore contractor for pipelay, platform installation and single-lift decommissioning, with an in-house designed fleet led by Pioneering Spirit.
Châtel-Saint-Denis, Switzerland · Company
About
Allseas was founded in January 1985 and is a family-owned company. Its engineers invented DP pipelaying and built Lorelay, the world's first dynamically positioned pipelay vessel, launched in 1986. Vessels and key equipment are designed in-house, including the Phoenix automated welding system introduced in 1993.
Since 2016 Pioneering Spirit has removed and transported over 250,000 tonnes of North Sea platform facilities. The group head office of Allseas Group S.A. is in Châtel-Saint-Denis, Switzerland, with engineering centred in Delft, the Netherlands.
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