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ABOUT US
A leading provider of offshore support vessels (OSVs) and emergency response and rescue vessels (ERRVs).

Founded in 2007, with a vision to deliver safe, reliable, and innovative marine support solutions, Sentinel Marine has rapidly grown into a leading provider of offshore support services, including Standby Vessel services. Since our inception, we have remained committed to excellence, investing in cutting-edge vessels and expanding our capabilities to meet the evolving needs of the energy and marine industries.
Our journey began with a focus on providing high-quality, multi-role vessels designed to offer a range of support services, including emergency response, firefighting, supply duties, and Standby Vessel services. Over the years, we have grown our fleet, currently operating 14 state-of-the-art vessels that serve clients worldwide, from the North Sea to more remote offshore regions. These vessels are equipped to deliver reliable Standby Vessel services, ensuring safety and continuous support in critical offshore environments.
As the energy landscape shifts towards sustainability, Sentinel Marine has embraced new opportunities in the ESG space, actively pursuing projects in wind energy, environmental support, and Government Services including Fisheries Protection. This commitment to sustainability, safety, and innovation has driven our expansion and established Sentinel Marine as a trusted partner for companies navigating the complexities of the modern offshore environment.
With a focus on long-term growth, a dedication to operational excellence, and a forward-thinking approach, Sentinel Marine continues to lead in delivering essential marine services that keep offshore operations running smoothly and safely. Rory Deans serves as the CEO, leading the company’s expansion into various sectors such as oil and gas, and ESG-focused initiatives like renewable energy.

State of the art high specification multi-role vessels
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A STRONG REPUTATION FOR SAFETY
to Safety
Our fleet of multi-role vessels is designed and equipped to meet the highest safety standards, ensuring compliance with stringent industry regulations.
Each vessel is built with advanced technology and features robust safety systems, including state-of-the-art fire-fighting (FiFi) and oil spill response capabilities. Beyond vessel design, Sentinel Marine places a significant emphasis on the safety of its personnel, investing heavily in crew training, emergency preparedness, and comprehensive safety management systems.
Sentinel Marine has earned a strong reputation for safety and reliability within the offshore oil and gas sector. A key aspect of Sentinel Marine’s expertise is our ability to operate in some of the most challenging marine environments, particularly in the North Sea. Known for its unpredictable and harsh weather, the North Sea requires vessels that can endure extreme conditions while maintaining operational efficiency. Sentinel Marine’s fleet is tailored for these environments, with vessels featuring superior manoeuvrability, reinforced hulls, and specialised equipment for operating in rough seas.
By combining cutting-edge vessel technology with a culture of safety and ongoing crew development, Sentinel Marine ensures its clients receive reliable and safe service in even the most demanding offshore operations.
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ENERGY-EFFICIENT VESSELS
Focus
Sentinel Marine places a significant emphasis on reducing its environmental footprint, recognising the growing importance of sustainability within the offshore and marine sectors.
Over the years we have strategically invested in energy-efficient vessels designed to minimise fuel consumption, reduce emissions, and comply with stringent environmental regulations, including MARPOL (International Convention for the Prevention of Pollution from Ships). These vessels are equipped with modern, low-emission engines, waste management systems, and advanced hull designs to optimise fuel efficiency, reducing their overall environmental impact.
This focus on environmentally responsible operations is not only a key value of Sentinel Marine but also a strong selling point for clients seeking partners that prioritize sustainability. With increased pressure from regulatory bodies and stakeholders, energy and marines companies are looking for suppliers and contractors who align with their environmental, social, and governance (ESG) goals. Sentinel Marine’s commitment to reducing its environmental impact directly appeals to these clients by offering a pathway to greener, more sustainable offshore operations.

A leading provider of offshore support services, specialising in standby vessel services
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DESIGNED WITH FLEXIBILITY IN MIND
Multipurpose Use
One of Sentinel Marine’s key strengths is the versatility our fleet to capitalise on emerging opportunities within the fast-changing energy and marine arenas.
Many of its vessels are designed to be multipurpose, meaning they can go beyond their primary role as emergency response and rescue vessels (ERRVs). These ships are engineered for flexibility, enabling them to handle a variety of critical tasks such as platform supply, oil spill response, firefighting operations, and environmental support missions.
This multipurpose capability makes Sentinel Marine an ideal partner for clients seeking adaptable and cost-effective solutions. Rather than deploying multiple specialised vessels for different operations, Sentinel’s flexible fleet allows clients to meet diverse offshore demands with a single, multifunctional vessel.
This not only enhances operational efficiency but also lowers costs and reduces the environmental impact, as fewer vessels are required for multiple roles. Whether it’s for rapid emergency response, supply logistics, Standby Vessel services, or environmental protection, Sentinel Marine’s versatile fleet is equipped to handle dynamic offshore challenges with agility and precision.
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THE MULTI-SECTOR FLEET
Support
Perfectly equipped for the following areas:
- O&G Production Support
- Fixed & Floating Offshore Wind Farms
- Offshore Hydrogen
- Oil and Gas Drilling P&A Activity Support
- Carbon Capture
- Government Services including Fisheries Protection
- Decommissioning
Value added services:
- ROV Support
- Buoy Maintenance
- W2W: The Walk2Work gangway
- External Fire Fighting System (FiFi)
- Deck and Bulk Cargo Operations
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THE MULTI-SECTOR FLEET
Support
Perfectly equipped for the following areas:
- O&G Production Support
- Fixed & Floating Offshore Wind Farms
- Offshore Hydrogen
- Oil and Gas Drilling P&A Activity Support
- Carbon Capture
- Government Services including Fisheries Protection
- Decommissioning
Value added services:
- ROV Support
- Buoy Maintenance
- W2W: The Walk2Work gangway
- External Fire Fighting System (FiFi)
- Deck and Bulk Cargo Operations

By embracing ESG principles, Sentinel Marine meets regulatory demands while positioning itself as a leader in sustainability, offering marine standby vessel services and gaining a competitive edge in the wind energy and environmental support sectors, contributing to a greener, more responsible future.