OneSubsea, a subsidiary of Schlumberger Ltd, is a provider of integrated solutions, products, systems and services for the subsea oil and gas markets. ​

The company offers reservoir recovery for the thorough integration and optimization of the subsea production system, from the reservoir to the surface, including well completions and subsea production systems. It offers integrated services, which include early engineering engagement, subsea technical services, hydrate management system processing systems, control systems, swivel and marine systems, and others. ​

OneSubsea’s processing systems division provides subsea pumps, multiphase compressors, electrostatic separators, subsea power systems, and meters and measurement systems. Its subsea services division offers installation and commissioning, subsea completion and intervention, asset management and technical support services. ​

It has operations across Africa, Asia, Europe, North and South America and Australia. ​