Our fleet

Allseas embodies dynamism, rapid progress and a pioneering spirit, consistently pushing the boundaries of offshore innovation and turning bold ideas into cutting-edge solutions that adapt to the ever-evolving energy landscape. Our fleet of record-breaking construction and support vessels, designed and optimised in-house, exceeds the limits of what’s possible above and below the water’s surface.

Pioneering Spirit

The world’s largest and most versatile construction vessel, represents a step change in offshore engineering.

Solitaire

One of the world’s most advanced pipelay vessels, consistently setting new standards in pipeline installation.

Audacia

Our most versatile pipelay vessel, optimised for a wide range of installation scopes in all water depths.

Lorelay

The world’s first DP pipelay vessel, delivering unmatched performance and reliability over 4 decades at sea.

Sandpiper

Fully automated anchor-positioned pipelay barge for high-performance shallow water construction operations.

Hidden Gem

The world’s first deep-sea mineral production vessel with seabed-to-surface nodule collection and transport systems.

Fortitude

Advanced offshore support vessel enhanced for complex deep-water installation and construction operations.

Oceanic

State-of-the-art offshore construction support vessel, excelling in jumper, umbilical and subsea structure installations.

Grand Tour

Semi-submersible Heavy Transport Vessel (HTV) purpose-built for seamless topsides transfers to Pioneering Spirit.

Barges

Purpose-built barges to support our record-breaking platform removal and installation operations.

Pipe supply vessels

Dynamic positioned offshore supply vessels, providing a seamless, continuous flow of line pipe and project materials.

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