James Fisher Subtech

What James Fisher Subtech does

James Fisher Subtech is a wholly-owned subsidiary of James Fisher and Sons plc (LSE: FSV.L), a publicly traded UK conglomerate, and functions as the group's integrated subsea services division. Formed in 2023 by consolidating all group diving and ROV (Remotely Operated Vehicle) operations under a single banner, the business delivers subsea inspection, maintenance, construction, and decommissioning services to enterprise offshore energy operators. Its headcount is approximately 427 and it is headquartered in Lowestoft, Suffolk, with operating geographies spanning the UK North Sea, Southern North Sea, West Africa, Japan, and Bulgaria.

The service portfolio combines in-house professional diving, ROV operations, chartered multipurpose offshore vessels (IRM and construction), asset management and inspection, and environmental and safety services. Specialist technical capabilities include a recorded 10-metre monopile cutting capability for offshore wind decommissioning, R2S digital twin and anomaly management tooling for FPSO lift planning, ScanTech inspection technology, and cable monitoring systems designed to reduce lost generation on offshore wind farms. Sub-brands James Fisher Renewables, R2S, ScanTech, and Serviços Marítimos Continental are deployed to address distinct buyer segments within offshore wind, oil and gas decommissioning, and West African operations.

Commercial activity is enterprise field sales only, with no public pricing and no SMB or long-tail motion. Named customers include Shell UK, BP Oil, Petrobras, and Vestas, and the group maintains strategic partnerships with Aquaterra Energy (global decommissioning) and Vestas (offshore wind Japan). Revenue is not separately disclosed for Subtech; the parent group reports consolidated financials including Energy, Defence, and Maritime Transport divisions. ISO certifications (including quality and information security) were awarded to the renewables arm in 2024, and the group received a Petrobras operational excellence award for Serviços Marítimos Continental.

Name

James Fisher Subtech

Legal name

James Fisher and Sons plc

Website

https://jamesfishersubtech.com

Company type

Public

Founded year

1970

Operating status

Operating

Headcount range

251–500 employees

Short description

James Fisher Subtech is the integrated subsea services subsidiary of UK-listed James Fisher and Sons plc, providing diving, ROV, inspection, and decommissioning services to enterprise offshore oil and gas and wind operators globally.

Ownership category

akta.pro rank

Product category

Offshore Subsea Services

NAICS

Support Activities for Water Transportation (4883)

SIC

Oil & Gas Field Services, Nec (1389)

akta.pro primary industry

Subsea Services & Equipment (Subsea Trees, Umbilicals, Installation, IMR) (EUALABAI)

akta.pro secondary industries

Offshore Marine & Aviation Support (PSVs, AHTS, Crew Boats, Helicopters) (EUALABAJ), Subsea Construction & IMR Vessel Newbuilds (CSV, DSV, ROV Support) (IMAJACAD)

Keywords

• Subsea diving services
• ROV operations
• Offshore asset inspection
• Offshore wind maintenance
• Decommissioning services

Headquarters

HQ city

Barrow-in-Furness

HQ country

United Kingdom

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Services

Cost components

Personnel, Operations, Infrastructure, Technology or R&D, Supply Chain, Marketing or Sales

Revenue model

1. Offshore Subsea Services: Revenue generated through provision of diving services, ROV operations, underwater inspection, and subsea construction services for offshore energy operators.
2. Vessel Charter Services: Revenue from chartering multipurpose offshore vessels including IRM (Inspection, Repair, Maintenance) and construction vessels for UK offshore energy needs.
3. Asset Management and Inspection: Ongoing asset management, inspection, and maintenance services across the offshore energy lifecycle from commissioning through decommissioning.

Go-to-market motion1 record

Distribution channels1 record

Marketing channels4 records

Core offering

James Fisher Subtech is the unified subsea services division of James Fisher and Sons plc, delivering professional diving, ROV operations, underwater inspection, subsea construction, and vessel charter services to offshore oil and gas operators and offshore wind developers. Services span the full offshore energy lifecycle, including well services, production support, rig start-up, asset management, commissioning, maintenance, decommissioning, and asset recovery, supported by in-house engineering and equipment.

Product overview

James Fisher Subtech is a unified subsea services division within James Fisher and Sons plc that combines all group diving and ROV services to provide world-leading subsea capability. The portfolio includes core subsea services (diving and ROV), integrated with broader energy services including commissioning and decommissioning, environmental and safety services, and asset management and inspection. The division also leverages digital solutions including R2S digital twin technology and ScanTech inspection solutions to support operations across the offshore oil and gas and renewables sectors. Services are delivered through an integrated model combining engineering expertise, specialist equipment, and experienced offshore teams.

Differentiator

Problem solved

Functional benefit

Brands

• James Fisher Subtech: Provides subsea services including diving and ROV operations for offshore energy projects
• James Fisher Renewables
• R2S

Products and services

• James Fisher Subtech (Unified Subsea Services Division) Integrated subsea services division combining the group's professional diving and ROV (Remotely Operated Vehicle) capabilities to deliver world-leading subsea services for offshore energy operators across the lifecycle.
• Commissioning and Decommissioning Services Comprehensive commissioning and decommissioning services for offshore energy assets, including well services, production support, late-life decommissioning, and asset recovery for offshore oil and gas and wind operators.
• Environmental and Safety Services Environmental and safety services that help offshore energy operators meet evolving regulatory and safety demands across complex scopes and high-risk environments.
• Asset Management, Inspection and Maintenance Asset management, inspection, and maintenance services designed to improve performance, control cost, and maximise asset value across the offshore energy lifecycle, delivered to offshore oil and gas operators and wind farm owners.
• Diving Services In-house professional diving services for subsea inspection, maintenance, and construction support delivered in harsh offshore environments for energy operators.
• ROV (Remotely Operated Vehicle) Services Advanced ROV services for subsea operations, providing visual inspection, manipulation, and support capabilities for offshore energy projects including oil and gas and offshore wind.
• Offshore Renewables Services High-performance services across the offshore wind lifecycle from commissioning through operations, maintenance, and optimisation, including cable monitoring and digital control systems for offshore wind developers and operators.
• R2S (Reliability and Risk Solutions) Digital twin and simulation solutions for offshore operations, supporting anomaly management, lift planning for FPSOs, and mechanical engineering workflows for offshore energy operators.
• ScanTech Inspection technology solutions for offshore energy operations, including innovative inspection solutions delivered for major energy companies such as Shell UK.

Quantifiable outcome

• Historic 10m diameter monopile cut completed for offshore wind decommissioning
• +1 more outcomes

Named customers5 records

Segments2 records

Ideal customer profiles2 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature4 records

Partnerships

Two partnerships are on record, tiered core and major.

• Aquaterra EnergycoreStrategic or Co-development PartnerJames Fisher and Aquaterra Energy announced a global decommissioning partnership combining expertise in offshore services and well intervention to deliver comprehensive decommissioning solutions for the energy sector.
• VestasmajorStrategic or Co-development PartnerPartnership for offshore wind project in Japan where James Fisher is setting safety standards for Vestas' major offshore wind development.

Scale indicators2 records

Recent moves6 records

Expansion highlights5 records

Direct peers

• Helix Energy Solutions Group: Helix Energy Solutions provides subsea well intervention, ROV services, and oilfield decommissioning to offshore operators globally. It is a direct competitor to James Fisher Subtech in subsea intervention and decommissioning campaigns, particularly in the North Sea and Gulf of Mexico.
• Saipem: Saipem is a major offshore EPCI contractor offering subsea services, offshore wind foundation installation, and decommissioning. It competes with James Fisher Subtech across subsea construction, IRM, and the offshore wind lifecycle, particularly in Europe and West Africa.
• Oceaneering International: Oceaneering is a global subsea robotics and engineered services company specializing in ROV operations, subsea intervention tooling, and offshore operation support. It is a direct peer to James Fisher Subtech's ROV and diving services, with comparable technology differentiation.
• DOF Subsea: DOF Subsea is a Norway-based subsea IMR, diving, and project execution specialist with a global vessel fleet. It is a direct peer to James Fisher Subtech in subsea inspection, repair, and maintenance services, particularly in the North Sea where both operators compete for IRM tenders.
• Acteon Group: Acteon provides subsea services including foundation installation, IMR, decommissioning, and offshore wind support through brands like Capital Offshore and ROG Energy. It is a direct peer to James Fisher Subtech in subsea IMR and offshore wind lifecycle services.
• Subsea 7: Subsea 7 is a global leader in subsea engineering, construction, and IRM services to the offshore energy industry. It directly competes with James Fisher Subtech in subsea IMR, diving, and offshore wind installation, with a substantially larger vessel fleet and global footprint.
• TechnipFMC: TechnipFMC provides subsea production systems, installation, and IRM services for offshore oil and gas. It competes directly with James Fisher Subtech in subsea hardware and offshore installation services, particularly with major operators in the North Sea and West Africa.
• Bibby Offshore: Bibby Offshore is a UK-based subsea installation, IRM, and corporate-rated diving specialist serving the North Sea offshore energy market. It is a direct peer to James Fisher Subtech in diving, ROV, and subsea construction services with comparable operational scale.

Broad incumbents

• Petrofac: Petrofac is a broader offshore services and engineering contractor with growing exposure to offshore wind and decommissioning. While not a pure-play subsea services peer, it competes with James Fisher Subtech for offshore operator budgets across the UK and global markets.

Emerging players

• Royal IHC: Royal IHC designs and builds subsea equipment, vessels, and offshore wind installation tools. It is a comparable supplier/partner peer to James Fisher Subtech's subsea construction and offshore wind activities, with overlap in specialist tooling and monopile handling equipment.

Market position

Strengths5 records

Weaknesses4 records

Competitive moat5 records

Key risks5 records

Key highlights7 records

Customer concentration

• Xx.com/jamesfisherplc
• LinkedInlinkedin.com/company/jamesfishersubtech

Compliance2 records

Revenue estimate

Valuation estimate

Number of profiles

Subsidiaries4 records

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about James Fisher Subtech