Subsea Tech

Subsea Tech

Marseille, France

Unmanned SystemsRadar & SensorsDual-use
System IntegratorSupplies Homeland Security & Police
Profile last updated: June 4, 2026

About

Subsea Tech is a defense system integrator based in Marseille, France working in unmanned systems, radar & sensors.

Subsea Tech designs, manufactures and operates underwater robotics, including ROVs, micro-ROVs and unmanned surface vehicles (USVs). Its systems serve inspection of infrastructure such as ports, dams, pipelines, offshore structures and nuclear cooling systems, as well as aquaculture, scientific research and environmental monitoring. For defence and security customers, it offers compact, rapidly deployable robotic solutions for underwater threat detection, harbour seabed scanning for suspicious objects, search and recovery operations, and surveillance of critical and sensitive maritime infrastructure. The company is based in Marseille, France, and markets its own products as well as third-party products through distributors.

Location

Marseille, France

Focus areas

underwater roboticsROVUSVsurface dronesmaritime securitydefense and securitysubsea inspectionhydrographyaquaculturenuclear

Languages

ENFR

Products & capabilities

Defense domains

Unmanned SystemsRadar & Sensors

Supply-chain role

System Integrator

What they offer

HardwareEngineering ServicesMaintenance & Repair

Markets

Also sells to civilian markets

Products

Tortuga

Inspection ROV

500 m offshore and industrial inspection ROV with azimuth control, resistant to currents up to 4 knots, available in STD and XP4 versions.

Mini TORTUGA XP4 ROV

Inspection ROV

Advanced mini ROV with increased power and stability for sensors and 3D photogrammetry systems.

Mini TORTUGA ROV

Micro-ROV

Compact inspection ROV for confined spaces, hulls, ballast tanks and infrastructure.

Observer Micro-ROV

Micro-ROV

Ultra-portable ROV for rapid visual inspection of submerged infrastructure and hydraulic networks.

Guardian Micro-ROV

Micro-ROV

Ultra-portable ROV for rapid underwater inspections and search operations for security teams.

AirCAT USV

Unmanned surface vehicle

Surface drone for offshore inspection and survey that can deploy an ROV and sensors.

USV CAT-Surveyor

Unmanned surface vehicle

Surface drone for sonar surveys, port surveillance and sensor deployment, including bathymetry.

ROV AREVA v2

Sediment recovery ROV

Specialised ROV for recovering radioactive sediments from silos, with pump, decompaction and ballast systems.

Docking Station DGA

AUV docking and instrumentation station

Docking and instrumentation station for AUVs.

End users

Homeland Security & Police

Standards, platforms & customers

Named customers

DRASSMCNRSFrench Biodiversity AgencyAustralian Antarctic DivisionCIDCO

Credentials & affiliations

Awards

Euromaritime Awards

Euromaritime2026

Other defense companies in France

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