Serooskerke, 18 December 2025.
With the agreement signed today, the collaboration between Bluewhale Offshore and OOS Group formally moves into its next phase. This milestone marks the beginning of a new chapter, as both organizations come together with a shared ambition to strengthen and expand their offshore service offering. We are genuinely excited about what lies ahead.
Under the agreement, Bluewhale Offshore shall hold a substantial stake in OOS-International B.V., a well-established offshore specialist with more than 15 years of experience in offshore accommodation, heavy lift, decommissioning, and field maintenance services across global markets. Bluewhale Offshore, based in Singapore, is part of the CIMC Group with its own shipyard CIMC Raffles in Yantai (China).
By bringing together Bluewhale’s capabilities in asset management with OOS Group’s expertise in project execution, ship management and offshore operations, the partnership creates a robust platform for delivering safe, reliable, and cost-efficient solutions throughout the full lifecycle of offshore projects.
A key element of this next phase is the introduction of BlueOOS. Operating under this new name, the former OOS International brand will continue its activities with full operational responsibility within the new structure. BlueOOS represents the combined strengths of both organizations and serves as the unified identity for their shared ambitions. The organization will operate and manage a fleet consisting of three semi-submersible units configured for both accommodation and heavy lift, one accommodation-focused semi-submersible unit, and two liftboats. BlueOOS has a total contract backlog of more than USD 700 million which makes BlueOOS the new market leader in providing high-end offshore accommodation solutions.
In the period ahead, the focus will be on executing a disciplined integration process, aligning systems and operating practices, and ensuring uninterrupted delivery for ongoing projects. Health, Safety, and Environment (HSE) will remain the uncompromising foundation of all activities.
We are grateful for the confidence and trust of our clients, partners, and suppliers, which has made this step possible. Building on that trust, we will continue to engage with the industry in an open and collaborative manner, with due respect for local communities and ecosystems. The joint venture aims to further enhance service quality in key offshore regions, including Brazil, the Asia-Pacific region, and West Africa.
Together with our clients, shipyards, and crews, we look forward to shaping this next phase and to building long-term partnerships as BlueOOS moves forward.


