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DirectoryConstruction & ArchitectureCivil EngineeringChâtel-St-DenisAllseas Group SA
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Allseas Group SA

Summary

About the company

Allseas is a leading company in the offshore energy industry, specializing in the planning, design and execution of complex offshore projects. The company's core activities include: offshore pipelay, platform decommissioning, platform transportation and installation, and polymetallic nodule collection. In addition, the company offers a range of services, including design, engineering, construction, operations and project management, to meet the needs of its customers in the offshore energy industry.

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Industry:
Civil Engineering
✓ Offered5
Offshore pipelay
Offshore pipelay for natural gas, oil and carbon capture, including subsea pipeline construction, deepwater installation, tie-ins and shore pull-ins using S-lay vessels.
Platform decommissioning
Single-lift removal of offshore platforms and jackets, including transport to shore for disposal or recycling, supported by motion-compensated heavy-lift vessel capability.
Platform transportation and installation
Transport and single-lift installation of offshore platforms, converter stations and substations, with tailored transport-and-installation solutions for large offshore structures.
Polymetallic nodule collection
Collection of polymetallic nodules from the ocean floor, including subsea recovery, vertical riser transport to surface and offloading for onshore processing.
Nuclear
Advanced nuclear power system development based on small modular reactors for offshore vessels and onshore industrial clusters, including HTGR and TRISO-based design work.
Reviews

Aggregated rating

Aggregated rating
2.3
of 5

Aggregated from 12 reviews across all connected sources

Sources
GGoogle2.312
★TrustpilotSoon
PProvenExpertSoon

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Location

Route de Pra de Plan 18
1618 Châtel-St-Denis

At a glance

Legal form
Corporation
UID
CHE-102.249.083
Founded
1994 · 32 years
Last commercial register change
June 5, 2025
Employees
11 to 20

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