Subsea 7 is a subsea engineering, construction, and service-providing company. It provides engineering, project management, supply chain, and vessel management services. The company connects seabed wellhead structures to surface facilities, such as platforms and floating production and offloading systems. ​

Subsea 7 offers fully integrated offshore products and services for the inspection, maintenance, and repair of existing offshore infrastructures. It also installs offshore wind turbines, structures, and substations; transports and installs offshore oil and gas structures; and decommissions redundant offshore structures. ​

The company serves customers in offshore infrastructure sector across the UK, Norway, the US, Egypt, Brazil, Nigeria, Australia, Angola, Ghana, France, Saudi Arabia, Qatar and other countries. ​