Sentinel Marine
Sentinel Marine (Cyan Sentinel Aberdeen) operates a 14-vessel fleet of high-specification offshore support and emergency response vessels under long-term multi-million contracts, serving Oil & Gas, Renewables, Fisheries, and Government clients across the North Sea.
- Company typePrivate
- Founded2007
- HeadquartersAberdeen, United Kingdom
- Headcount51–100
- GTM typeB2B
- OfferingServices
What Sentinel Marine does
Sentinel Marine, operating under the DBA Cyan Sentinel Aberdeen and legally constituted as Cyan Sentinel Ltd., is an Aberdeen-headquartered offshore marine services provider. The company operates a fleet of 14 high-specification multi-role vessels (MRVs) that perform dual functions as offshore support vessels (OSVs) and emergency response and rescue vessels (ERRVs). It is a member of the Cyan Renewables Group, having previously operated under its founding Sentinel Marine identity, and serves enterprise clients across the North Sea and adjacent regions.
The company's core technology is its modern, custom-built MRV fleet. Vessels are equipped with state-of-the-art navigation, communication, and rescue systems engineered for superior fuel efficiency, lower emissions, and enhanced response capabilities. A 65-metre multi-role energy support vessel is currently under construction at Jiangmen Hangtong Shipbuilding Co., Ltd, with options for three additional hulls, which would lift the fleet to 18 vessels under the company's stated "Go Big" doubling strategy.
Revenue is generated through long-term, quote-based, multi-million-pound MRV charter contracts with enterprise clients in Oil & Gas, Renewables (offshore wind), Fisheries, and Government sectors. The company pursues a direct enterprise field-sales motion, securing contracts through long-term partnerships rather than spot or transactional pricing. Strategic priorities are articulated through three pillars: GO GREEN (expansion into ESG-focused sectors such as wind energy and fisheries), GO LONG (multi-year contract partnerships), and GO BIG (fleet expansion).
Sentinel Marine firmographics
Firmographics- Name
- Sentinel Marine
- Legal name
- Cyan Sentinel Ltd.
- Website
- https://sentinel-marine.com
- Company type
- Private
- Founded year
- 2007
- Operating status
- Operating
- Headcount range
- 51–100 employees
- Short description
- Sentinel Marine (Cyan Sentinel Aberdeen) operates a 14-vessel fleet of high-specification offshore support and emergency response vessels under long-term multi-million contracts, serving Oil & Gas, Renewables, Fisheries, and Government clients across the North Sea.
- Ownership category
- akta.pro rank
Sentinel Marine industry classification
Industry- Product category
- Offshore Marine Support Services
- NAICS
- Support Activities for Water Transportation (4883), Other Support Activities for Water Transportation (48839)
- SIC
- Water Transportation (4400)
- akta.pro primary industry
- Offshore Marine & Aviation Support (PSVs, AHTS, Crew Boats, Helicopters) (EUALABAJ)
- akta.pro secondary industry
- Offshore Support & Marine Logistics Vessel Operators (PSV/AHTS) (TLADABAL)
Keywords
Where Sentinel Marine is headquartered
LocationHeadquarters
- HQ city
- Aberdeen
- HQ country
- United Kingdom
- HQ region
- Europe
Offices1 record
Markets served
Sentinel Marine business model
Business model- GTM type
- B2B
- Offering type
- Services
- Cost components
- Personnel, Operations, Infrastructure, Supply Chain, Technology or R&D
Revenue model
- Vessel Charter Services: Long-term multi-million MRV (Multi-Role Vessel) contracts providing ongoing vessel charter services to clients in Oil and Gas, Renewables, and Fisheries sectors. Revenue is generated through charter fees for offshore support and emergency response services.
Go-to-market motion1 record
Distribution channels1 record
Marketing channels2 records
Sentinel Marine product offering
Product offeringCore offering
Sentinel Marine owns and operates a fleet of 14 multi-role offshore vessels (13 Emergency Response and Rescue Vessels and 1 Offshore Support Vessel) from its Aberdeen base, providing standby, rescue, and offshore support services to the oil & gas, offshore renewables, fisheries, and government sectors. The company is expanding to 15 vessels with a new 65-metre, low-emission Multi-Role Vessel purpose-built for the energy transition. Revenue is generated primarily through long-term charter and standby contracts with international energy operators and public-sector clients.
Product overview
Cyan Sentinel Aberdeen operates a unified fleet of 14 state-of-the-art, high-specification Multi-Role Vessels (MRV) serving as both offshore support vessels (OSVs) and emergency response and rescue vessels (ERRVs). The fleet serves clients across the North Sea and other regions, providing versatile solutions for the Renewables, Fisheries, and Oil and Gas industries. The company is expanding its fleet with a new 65-metre multi-role energy support vessel under construction, bringing the total to 15 vessels. Services are delivered through three core pillars: GO GREEN (environmentally responsible practices and ESG-focused sectors), GO LONG (long-term client partnerships), and GO BIG (fleet growth and capacity expansion).
Differentiator
Problem solved
Functional benefit
Products and services
- Multi-Role Vessel (MRV) Charter Services Long-term chartered multi-role vessel services providing standby, offshore support, and emergency response to international energy operators; combines rescue, walk-to-work, and O&M/construction support roles on a single vessel.
- Emergency Response and Rescue Vessel (ERRV) Charter Services Charter of Sentinel Marine's 13 ERRVs to oil & gas platforms and offshore wind installations requiring statutory and best-in-class emergency response, rescue cover, and crew transfer.
- Offshore Support Vessel (OSV) Charter Services Offshore support vessel charter services supporting offshore energy operations, including walk-to-work, supplies transfer, construction support, and operational maintenance tasks.
- Government and Fisheries Enforcement Vessel Charter Services Chartered multi-role vessel services to UK and European government agencies and fisheries authorities for fisheries protection, maritime patrol, and offshore enforcement operations.
Quantifiable outcome
- Fleet of 14 state-of-the-art high specification multi-role vessels
- +1 more outcomes
Companies that use Sentinel Marine
Customer profileSegments4 records
Ideal customer profiles2 records
Sentinel Marine technology and API
TechnologyTechnology focussed No
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Feature1 record
Sentinel Marine partnerships and signals
Strategic signalPartnerships
One partnership is on record.
- Jiangmen Hangtong Shipbuilding Co., LtdcoreSentinel Marine, a member of the Cyan Renewables Group, has signed a shipbuilding contract with Jiangmen Hangtong Shipbuilding Co., Ltd for the construction of a 65-metre multi-role energy support vessel to join their fleet, with options for a further three vessels. The new vessel will bring the fleet number to 15. This partnership enables the company's fleet expansion plans and 'Go Big' strategy.
Scale indicators4 records
Recent moves6 records
Expansion highlights5 records
Sentinel Marine competitors and assessment
Company assessmentDirect peers
- Edison Chouest Offshore: Privately held US-based global OSV operator with a diversified fleet including OSVs, MPSVs, and crew boats. Comparable vessel offerings and customer overlap with major oil companies and increasingly offshore wind developers.
- Siem Offshore: Norwegian OSV owner/operator with PSV, AHTS, and subsea construction vessels serving global oil & gas and renewables markets. Comparable vessel portfolio and similar exposure to North Sea customers.
- Vroon Offshore Services: Dutch offshore support vessel operator with a large North Sea PSV/subsea fleet serving oil & gas and offshore wind. Directly comparable vessel type, customer overlap (oil majors, wind developers), and North Sea geographic focus.
- Havila Shipping: Norwegian PSV/AHTS owner-operator primarily serving the North Sea. Directly comparable vessel portfolio and customer verticals, with similar exposure to oil & gas cyclicality.
- Esvagt: Danish-headquartered pure-play ERRV (Emergency Response and Rescue Vessel) and OSV operator serving the North Sea. Closest functional peer to Sentinel Marine given overlapping ERRV focus, multi-role vessel design, and North Sea customer base.
- DOF Group: Norwegian offshore service vessel operator with AHTS, PSV, and subsea vessels globally. Overlaps with Sentinel Marine on vessel classes, North Sea exposure, and oil & gas / renewables customer mix.
- Solstad Offshore: Norwegian global OSV owner/operator with AHTS, PSVs, and subsea construction vessels. Comparable vessel mix and similar end-market diversification into renewables.
- North Star Shipping: Aberdeen-based operator of OSVs and service vessels in the North Sea, including SOVs for offshore wind. Same geography, same customer verticals (Oil & Gas and Renewables), and similar multi-role vessel strategy.
- Bourbon (BOURBON Maritime): French-headquartered OSV operator with a global fleet of AHTS and PSVs serving oil & gas. Comparable vessel types, multi-region presence, and similar customer segments in offshore energy.
Broad incumbents
- Tidewater Inc. Largest global OSV operator with the world's biggest fleet of OSVs serving shallow and deepwater markets. Broader incumbent offering global scale and multi-region coverage that Sentinel cannot match, but overlapping vessel types and customer base.
Market position
Strengths5 records
Weaknesses5 records
Competitive moat5 records
Key risks7 records
Key highlights7 records
Customer concentration
Sentinel Marine social profiles
Digital presenceSentinel Marine financial estimates
Financial estimateRevenue estimate
Valuation estimate
Sentinel Marine leadership team
Management profileNumber of profiles
Sentinel Marine funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
Sentinel Marine M&A and investment
M&A and investmentM&A
Investments
M&A and investment is available on the Subscription and Enterprise plan.Contact sales →
Frequently asked questions about Sentinel Marine
What does Sentinel Marine do?
Sentinel Marine owns and operates a fleet of 14 multi-role offshore vessels (13 Emergency Response and Rescue Vessels and 1 Offshore Support Vessel) from its Aberdeen base, providing standby, rescue, and offshore support services to the oil & gas, offshore renewables, fisheries, and government sectors. The company is expanding to 15 vessels with a new 65-metre, low-emission Multi-Role Vessel purpose-built for the energy transition. Revenue is generated primarily through long-term charter and standby contracts with international energy operators and public-sector clients.
Is Sentinel Marine a public or private company?
Sentinel Marine is a private company. It is classified as corporate owned and is currently operating.
When was Sentinel Marine founded?
Sentinel Marine was founded in 2007. It employs 51 to 100 people.
Where is Sentinel Marine based?
Sentinel Marine is headquartered in Aberdeen, United Kingdom, in the Europe region.
How does Sentinel Marine make money?
One revenue line is on record: vessel Charter Services.
Who are Sentinel Marine's main competitors?
Direct peers on record are Edison Chouest Offshore, Siem Offshore, Vroon Offshore Services, Havila Shipping, Esvagt, DOF Group, Solstad Offshore, North Star Shipping and Bourbon (BOURBON Maritime). Tidewater Inc. is listed as a broad incumbent.
Does Sentinel Marine have an API?
No public API is recorded for Sentinel Marine.
What industry is Sentinel Marine in?
Sentinel Marine's product category is Offshore Marine Support Services. Its primary akta.pro industry code is EUALABAJ, Offshore Marine & Aviation Support (PSVs, AHTS, Crew Boats, Helicopters), with a secondary code of TLADABAL, Offshore Support & Marine Logistics Vessel Operators (PSV/AHTS). Its NAICS code is 4883 and its SIC code is 4400.