 | |
| Company type | Private |
|---|---|
| Industry | offshore pipelaying undersea construction |
| Founded | 1985 |
| Founder | Edward Heerema |
| Headquarters | , |
Number of employees | 4,000[1] |
| Website | www.allseas.com |
Allseas Group S.A. is a Dutch offshore contractor specialising in pipelay, heavy lift and subsea construction.[2] It was founded in 1985 by owner and president Edward Heerema, employs 4,000 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 and the USA.[3]
Allseas operates a versatile fleet of specialised heavy-lift, pipelay and subsea installation vessels. The company has installed over 20,000 km of subsea pipeline worldwide using S-lay technology, with diameters ranging from 2 to 48 inches.[4] Allseas launched its first vessel Lorelay, the world's first pipelay vessel to operate on full dynamic positioning, in 1986.[5] It also owns Pioneering Spirit, the world's largest vessel, designed for the single-lift installation and removal of large oil and gas platforms and the installation of record-weight pipelines.
- ^ Allseas website: About company, visited 21 December 2019
- ^ "Allseas company". www.allseas.com.
- ^ "Allseas offices and yards". www.allseas.com.
- ^ "Pipeline installation". www.allseas.com.
- ^ "Converted DP Lorelay to install deepwater lines". Offshore Magazine. 1 January 1996.