Subsea Integration Alliance

Subsea Integration Alliance combines the strengths of OneSubsea and Subsea7 to amplify subsea performance. We are a strategic global alliance delivering fully integrated subsea projects of any scale, anywhere in the world.

Amplify subsea performance with Subsea Integration Alliance
OneSubsea and Subsea7 have combined their strengths to drive the future of energy from the seabed.


continents of operation


integrated FEEDs


EPCI contracts

Overcoming subsea challenges

Addressing the challenges presented by subsea developments goes far beyond the capabilities of any one service provider. Our industry is under pressure to deliver the world’s energy needs while also rapidly decarbonizing and accelerating the energy transition. Subsea projects are competing for capital, with increasing supply chain capacity challenges.

In 2015, OneSubsea and Subsea7 combined their strengths to form Subsea Integration Alliance and create a step change in the way subsea projects are developed and delivered. Today, we are the industry’s leading provider of integrated subsea production systems (SPS) and subsea umbilicals, risers, and flowlines (SURF) solutions.

Overcoming challenges by challenging convention

We are redefining partnership, collaborating with you to optimize subsea economics and lay the foundation for a sustainable energy future. Together, we’ll work from concept development through the full field life cycle to maximize asset performance and lower emissions.

Amplifying subsea performance for nearly a decade

Since our formation in 2015, Subsea Integration Alliance has developed major greenfield projects and performed significant tieback work worldwide.

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Core benefits