Allseas

Allseas Group S.A. is a Swiss offshore contractor specialising in pipelay, heavy lift and subsea construction. It was founded in 1985 by owner and chairman Edward Heerema, employs 5,000 people and operates worldwide. The company is headquartered in Châtel-Saint-Denis, Switzerland. It also owns a subsidiary, Allseas Engineering B.V., based in the Netherlands with offices in Delft, Eindhoven and Enschede, which provide project management and engineering services to the group. The company also operates project and engineering offices out of Australia, Malaysia, Qatar, Brazil and the United States. Allseas operates a versatile fleet of specialised heavy-lift, pipelay and subsea installation and construction vessels. The company has installed over 30,000 km of subsea pipeline worldwide using S-lay technology, with diameters ranging from 2 to 48 inches. Allseas launched its first vessel Lorelay, the world's first pipelay vessel to operate on full dynamic positioning, in 1986. It also owns Pioneering Spirit, the world's largest construction vessel, designed for the single-lift installation and removal of large oil and gas platforms and the installation of record-weight pipelines.