Your partner for
subsea servicesoffshore operationsmarine servicesfloating wind
Trunion delivers integrated offshore services from a single company — vessels, subsea engineering and project management under one contract, across the full life-cycle of an offshore energy asset.
What we do
A fully integrated
offshore company.
Most offshore scopes are split across a vessel owner, a subsea contractor and an engineering house. We hold all three. That means one interface, one safety culture and one schedule — which is how we take risk and cost out of complex offshore work.
Subsea services
A long track record in inspection, maintenance, repair and light construction, delivered by our own ROV spreads and offshore engineering teams.
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Renewables
Advancing floating wind: mooring and cable installation, tow-out support and long-term operations & maintenance for offshore wind assets.
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Marine management
Setting the standard in ship management since 1987 — crewing, technical management and full commercial operation of offshore support vessels.
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Integrated subsea services
One team from
engineering to execution.
Reduced project risk, higher vessel utilisation and better safety performance — because the people who designed the scope are the people offshore delivering it. Our integrated model covers survey, engineering, installation, IMR and decommissioning.
Fleet & equipment
A modern,
purpose-built fleet.
A young fleet of construction support, subsea and anchor handling vessels, backed by work-class ROVs, survey spreads and modular deck equipment we own and maintain ourselves.
Construction support
Large-deck CSVs with 150–400t cranes, dual work-class ROVs and DP2/DP3 stationkeeping.
Subsea & IMR
Purpose-built IMR vessels with moonpools, dive support options and 100t offshore cranes.
Anchor handling
High bollard-pull AHTS tonnage for rig moves, mooring installation and floating wind tow-out.
Subsea equipment
Work-class and observation ROVs, trenchers, survey spreads and modular handling systems.
Our people
At the heart of the business
is a remarkable team.
Around 2,400 people work for Trunion offshore and onshore — masters and crew, ROV pilots, subsea engineers, project managers and the shore teams who keep every vessel running. We recruit for judgement and train for the rest.
Group & performance
Key figures.
Trunion operates through four business units: Trunion Subsea, Trunion Marine, Trunion Renewables and Trunion Offshore Engineering.
From the newsroom
Latest announcements and project awards.
Trunion secures three-year IMR frame agreement in the Central North Sea
7 August 2026 RenewablesMooring installation scope awarded for a 42-turbine floating wind development
29 July 2026 FleetTrunion Endeavour completes hybrid battery retrofit and returns to service
14 July 2026 CompanyHalf-year results: backlog up 18% on renewables and West Africa awards
2 July 2026Let’s talk about
your next scope.
Tell us the water depth, the window and the outcome you need. We will tell you the vessel, the spread and the plan.