OneSubsea, legally ONESUBSEA AS, is a joint venture established in October 2023 combining the subsea businesses of SLB and Aker Solutions. It is owned 70% by SLB, 20% by Aker Solutions, and 10% by Subsea7. Headquartered in Oslo, Norway, and Houston, Texas, the company employs around 10,000 people globally and provides subsea production systems, umbilicals, and related solutions primarily for offshore oil and gas projects.
OneSubsea focuses on technologies to enhance subsea asset performance, reduce costs, and lower emissions. In 2026 it was awarded contracts including subsea systems for Equinor projects on the Norwegian continental shelf and other developments offshore Norway, Indonesia, Malaysia, and the Gulf of Mexico.
Official website: onesubsea.slb.com
chemXplore is tracking 9 active investment projects involving OneSubsea — 3 new-build and 6 expansion, across sectors such as Basic Chemicals, Biobased & Circular, and Polymers.
OneSubsea's role is mapped on each — as EPC and Technology / equipment supplier.
To provide comprehensive coverage, we aggregate data and news under the name OneSubsea, encompassing the following company names, divisions, and related entities:
SLB OneSubsea and OneSubsea LLC.
This list encompasses current and former names, alternate names, and key divisions associated with OneSubsea, ensuring you can easily find all relevant information under a single, unified profile.
