Naval & Maritime companies in Europe

ExailParis, France · 1001-5000

Builds naval mine countermeasures systems, inertial navigation technology, autonomous maritime vessels and photonics instruments for defence, maritime and aerospace operators across 80+ countries.

UMIS (Unmanned MCM Integrated System)

A modular mine countermeasures system that combines aerial, surface and underwater unmanned vehicles — including inspector USVs, A9-M/A18-M AUVs, ROVs and towed synthetic aperture sonars — to detect, classify, identify and dispose of sea mines while keeping crews at safe distances. Managed through the Umisoft command and control software suite, UMIS can be deployed from ships, shorelines or a containerised format. It has been selected by the Belgian and Royal Dutch navies for the rMCM programme and by the Latvian Navy.

Naval Inertial Navigation Systems

A family of fibre optic gyroscope-based navigation and attitude systems for warships, submarines and unmanned underwater vehicles, including the Phins, Marins and Phins Compact ranges. The systems provide heading, roll, pitch and positioning data without relying on GNSS signals, with drift performance as low as 1 NM per 360 hours and qualifications to MIL-STD-810 and MIL-STD-461 standards. They cover submarines requiring acoustic signature minimisation through to compact INS units fitted in AUVs.

DriX Series Uncrewed Surface Vessels

A range of autonomous surface vessels designed for hydrographic survey, oceanographic research, subsea positioning and offshore operations, available in three models from 7.7 m to 15.75 m with ranges between 1,000 and 3,500 nautical miles. DriX vessels can operate beyond visual range via satellite and 4G/5G communications, support AUV and ROV deployment, and carry modular payloads. The fleet has accumulated over 250,000 hours at sea across 25+ countries.

Land and Air Inertial Navigation and Pointing Systems

The ADVANS series and related inertial measurement units provide navigation, pointing and stabilisation for land vehicles, artillery systems and airborne platforms operating in GNSS-denied or contested environments. The range covers vehicle navigation, weapon system pointing and stabilised optical and sensor platforms for ground forces.

Maritime RoboticsTrondheim, Norway · 51-200

Builds autonomous navigation systems and uncrewed surface vessels for maritime surveying, oceanographic research and defence operations.

The Otter

A compact 62 kg electric catamaran USV for sheltered and coastal waters, with up to 20 hours endurance and 30 kg payload capacity. Powered by four battery packs and two electric thrusters for zero-emission operations, it can be assembled by one person and transported in a cargo van. Used for bathymetric surveying, harbour security, scientific data collection and environmental monitoring in rivers and inland waterways.

The Mariner X

An open-ocean USV engineered for deep-water and harsh offshore environments, including Arctic and floating wind farm operations. At 9 metres and 5 tonnes it carries 1,200 kg of payload with 25 days of fuel endurance and a modular back deck for deploying AUVs, sonars and launch-and-recovery systems. Deployed by offshore operators including Argeo for long-range seabed mapping.

MARSS GroupLondon, United Kingdom

Builds AI-powered command and control systems for counter-drone defence, maritime security and critical infrastructure protection, deployed at over 60 sites worldwide.

UMS SkeldarSweden · 51-200

Swedish unmanned aircraft systems company building the SKELDAR V-200 heavy-fuel VTOL platform for maritime ISR, target acquisition and electronic warfare missions.

SKELDAR V-200

Heavy-fuel VTOL unmanned aircraft system for maritime ISR, target acquisition, electronic warfare payloads and shipborne operations.

SKELDAR V-200 Heavy Fuel Capability

Operational V-200 configuration focused on heavy-fuel logistics, endurance and deployability for military and maritime users.

Diodon Drone TechnologyToulouse, France · 11-50

Designs and manufactures waterproof, inflatable maritime mini-UAVs for ISR and search-and-rescue missions in naval, coastal and high-humidity environments where conventional drones cannot operate.

TEKEVERLisboa, Portugal · 100-500

Builds fixed-wing unmanned aerial systems and an intelligence-as-a-service platform used by European maritime safety agencies, border forces and defence customers for long-endurance surveillance missions.

VABO CompositesEmmeloord, Netherlands · 11-50

Manufactures lightweight composite doors, hatches and masts for naval vessels, including the only maritime composite door certified for 60-minute fire resistance. Holds a multi-year supply contract with Damen Naval for the Anti-Submarine Warfare Frigate programme.

north.ioKiel, Germany · 51-200

Builds cloud and on-premises big data platforms for managing, processing and visualising underwater and terrestrial sensor data, serving navies, offshore wind operators and hydrographic agencies.

Argus Remote SystemsLaksevåg, Norway · 11-50

Bergen-based manufacturer of electric ROV systems ranging from inspection-class units to heavy work-class vehicles rated to 7,000 metres, with over-the-horizon control via Starlink and Kongsberg Maritime Broadband Radio. Has delivered ROV systems to defence customers for more than 25 years.

ELAC SONARKiel, Germany · 51-200

Designs and manufactures submarine sonar suites, anti-submarine warfare systems and seabed surveillance technology for navies worldwide, with nearly 100 years of hydroacoustic expertise from Kiel, Germany.

Sphere® Passive Surveillance (KaleidoScope 2.0)

An open sonar suite designed for conventional submarines, providing full spatial, spectral and temporal acoustic coverage. It combines narrowband and broadband passive sonar for contact detection, tracking and classification, with acoustic intercept and analysis tools. The system is built on MOTS hardware with fully in-house designed and manufactured hydrophone arrays, and its modular architecture supports upgrades and future capability growth with reduced lifecycle costs. ELAC SONAR's Sphere®-based KaleidoScope 2.0 is the sonar suite selected for Italy's U212 NFS submarine programme.

Gabler MaschinenbauLübeck, Germany · 51-200

Builds hoistable mast systems, submarine components and torpedo-tube-launched unmanned surface vessels for naval forces worldwide.

Lobster RoboticsDelft, Netherlands

Designs, manufactures and rents autonomous underwater drones for high-resolution seabed inspection, serving both offshore industry and naval forces.

Radical BuildersAmsterdam, Netherlands · 1-10

Develops unmanned vessels (USVs) for maritime operations with autonomous capabilities. Their first vessel is a solar-powered drone harvester for seaweed and marine debris cleanup operations.

ACUA OceanPlymouth, United Kingdom · 11-50

Designs and operates the Pioneer-class small waterplane area twin hull USV for anti-submarine warfare, maritime ISR and critical national infrastructure monitoring, becoming the UK's first Remotely Operated Unmanned Vessel certified under Workboat Code 3 in 2025.

AEROMARITIME SystembauNeufahrn bei Freising, Germany · 51-200

Designs and integrates open-architecture naval communications systems, secure military messaging and submarine antenna solutions for navies worldwide.

APCOS 4000 – Integrated Communication System

Open-architecture digital communications platform for surface warships and submarines. APCOS 4000 handles tactical voice, internal comms, radio system integration, IP routing, voice over IP and strict separation of classified and unclassified traffic. Network nodes interconnect via a redundant dual fibre-optic ring, ensuring survivability in the event of cable breaks or node faults. Deployed on the German Navy's F125 frigate programme among other vessels.

Aether AeronauticsChania, Greece · 11-50

Aether Aeronautics designs and manufactures aerial target drones, unmanned surface vehicle targets and ATD launchers for threat simulation and training.

NMS-2 Family

Jet-propelled off-the-shelf aerial target drone family with NMS-2A, NMS-2B, NMS-2C and NMS-2D variants for realistic aerial threat simulation.

CHAOS

Medium-performance aerial target drone designed to simulate a variety of aerial threats for realistic training scenarios.

PNS-1

Propeller-driven aerial target drone system for basic to medium-performance threat simulation and mission training.

MEDUSA 5 USV

Unmanned surface vehicle target system for maritime missions up to 8 hours and up to Sea State 5, compatible with Aether ground control systems.

AILiveSimHelsinki, Finland · 11-50

Simulation and synthetic data generation platform for training and testing autonomous systems across maritime, aerial and land domains, used by defence customers to validate AI models for mission-critical operations. A Helsinki-based spin-off whose fastest-growing vertical is defence.

Alpha Unmanned SystemsMadrid, Spain · 11-50

Designs and manufactures tactical fuel-powered UAV helicopters used for maritime security, border control, and observation missions. Platforms deployed by defence customers in over 12 countries including Hungary, Greece, and Israel.

ALSEAMARRousset, France · 51-200

ALSEAMAR develops underwater gliders, acoustic systems, radiocommunication and subsea solutions for naval defence, special forces and maritime operations.

Applied Intelligence AnalyticsDublin, Ireland · 1-10

Data analytics software for defence and government intelligence, specialising in risk identification from structured and unstructured sources. Participates in three European Defence Fund projects including naval superiority (E-Nacsos), AI for defence (Koios), and explosive detection (Convoy).

Artemis Research & InnovationBucharest, Romania · 1-10

Romanian-Greek deep tech SME founded in 2020, specialising in RF hardware, sensors and AI. Coordinator of the EU EDF AVALON project developing high-bandwidth underwater wireless optical communications for military use.

AvyAmsterdam, Netherlands · 11-50

Avy builds long-range VTOL drone networks for emergency response, remote monitoring and intelligent surveillance, centered on the Aera aircraft and BVLOS operations.

Aera

Long-range VTOL drone with up to 100 km range, a typical 60-minute flight time and standard payload capacity up to 3 kg.

Drone Response Network

Networked deployment model for airborne emergency response, giving teams information from the incident area before arrival.

Remote Monitoring

Long-range drone operations for automated inspections and monitoring of ports, infrastructure and remote sites.

Intelligent Surveillance

Surveillance-focused application of Avy drones for situational awareness across security and defence environments.

Baltic WorkboatsNasva, Estonia · 51-200

Estonian shipyard building aluminum naval patrol vessels for the Estonian Navy and international customers. Delivered 200+ vessels to 20+ countries including the Navy 45 WP with remote weapon stations.

Navy 45 WP

A 44.6-metre hybrid aluminium naval vessel with 3,000 nm range, MTU 16V4000 engines reaching 30 knots, and a crew capacity of 28 including a RHIB daughter boat compartment, built for the Estonian Navy.

EUROGUARD USV

A 45-metre semi-autonomous modular surface vessel being developed under the European Defence Fund with 27 partners from 10 countries, featuring autonomous navigation, obstacle detection, and mission-configurable modules, with launch scheduled for 2026.

Pilot 1500 WP

A 15-metre wave-piercing pilot boat with patented hull design that reduces vertical acceleration by 40% and improves fuel economy by up to 30% compared to traditional hulls, delivered in a series of 11 to Denmark.

Blue Armada RoboticsGdansk, Poland · 11-50

Builds autonomous and unmanned surface vessels for maritime infrastructure monitoring and defence. Selected for NATO DIANA as the only Polish company focused on marine security, with hybrid-electric vessels capable of two-week autonomous missions.

Blueprint SubseaUnited Kingdom · 11-50

Blueprint Subsea develops compact underwater acoustic sensors, imaging sonars, acoustic positioning beacons and diver navigation systems for subsea and defence markets.

Blueye RoboticsTrondheim, Norway · 1-50

Designs and manufactures professional underwater ROVs in Norway for defence, inspection, aquaculture and marine research, serving customers in 40+ countries.

Cambridge PixelRoyston, United Kingdom · 11-50

UK developer of radar signal processing, tracking and display software used by defence and maritime system integrators, supporting a wide range of modern and legacy radars with hardware-agnostic SDKs. Serves naval, air and security customers worldwide.

Cathx OceanDublin, Ireland · 11-50

Cathx Ocean builds subsea imaging sensors, edge compute hardware and workflow software that turn underwater data into real-time perception and autonomy insights.

Hunter II

Subsea imaging hardware line for capturing high-quality optical data in shallow or deep water conditions.

INKA Edge Hardware

On-vehicle processing hardware for deploying AI model inference and data workflows directly on subsea vehicles or sensors.

INKA Iris

Compact subsea camera product for shallow-water operations with onboard processing capabilities.

Clarity

Edge workflow software runtime for orchestrating data agents, AI models, event detection and actionable insights at the edge.

Cestron InternationalBerlin, Germany · 11-50

Designs, manufactures and commissions HF radio communication systems and antenna infrastructure for military and government customers. One of Europe's leading integrators for naval ship-to-shore HF comms covering VLF through UHF bands.

Chess DynamicsHorsham, United Kingdom · 201-500

UK defence systems company designing electro-optical surveillance, targeting, fire-control and counter-UAS systems for land, maritime and air-defence missions.

Civitanavi SystemsItaly · 201-500

Civitanavi Systems designs and manufactures inertial navigation, geo-reference and stabilization systems for defence, naval, land, air, space and industrial applications.

Clearwater HydroacousticsBrasted, United Kingdom · 1-10

Dstl spin-out making SonarBell, an omni-directional passive sonar reflector used for asset and location marking, sonar testing and performance checking. Battery-free with no electronics for underwater defence applications.

Comrod Communication GroupNorway · 201-500

Comrod Communication Group develops tactical antennas, masts, naval antenna systems, mission systems and power solutions for defence and maritime communications.

Cross Water ProductionMuhu, Estonia

Swedish-Estonian modular workboat platform for defence, security and industry. Aluminium hull with rail-mounted modules that reconfigure in under ten minutes for border patrol, special operations, SAR and naval support.

DA-GroupForssa, Finland · 51-200

DA-Group provides advanced electronics and high-technology systems for defence, aerospace and industry, including EW testing, degaussing and resilient navigation products.

SURMA Combat Endurance

Combat survivability software for defence platforms and operational endurance analysis.

DARAD EW Suite Tester

Electronic warfare test equipment for validating EW systems and operational readiness.

DanaDynamicsSvendborg, Denmark · 11-50

Danish autonomous maritime navigation specialist. Develops SKIPPER, an autonomous navigation system that brings real-time data-driven route optimisation, collision avoidance, and unmanned operation to vessels for naval and commercial maritime use.

DetegasaNarón, Spain · 51-200

Galician manufacturer of waste, water and fuel treatment systems for navy, marine and offshore. Defence accounts for 60% of sales, supplying 29 navies including the Spanish, Royal Australian, Royal and Royal Norwegian navies.

DolpropSweden

Marine electric propulsion technology for naval and defence vessels, improving stealth and efficiency. NATO DIANA 2025 cohort.

dotOceanBruges, Belgium · 11-50

Develops cutting-edge cloud robotics technology for autonomous navigation of vessels and multi-agent systems, offering maritime situational awareness and automated operations through cloud-based user interfaces.

DrassLivorno, Italy · 201-500

Italian subsea engineering company founded in 1927 designing submarine rescue systems, hyperbaric defence chambers and saturation diving equipment. Supplies turnkey submarine rescue ships and deep-diving systems used by navies worldwide.

EelumeTrondheim, Norway · 11-50

Builds snake-like all-terrain autonomous underwater vehicles whose flexible body operates close to seabeds, slopes, ice and harbour structures where conventional AUVs cannot reach. The S-Series platform delivers high-resolution sonar and 3D photogrammetry for change and threat detection on critical subsea infrastructure.

ElesiaItaly · 11-50

Designs and manufactures carbon-fibre naval consoles, composite ISO shelters, large-screen situational awareness displays and embedded electronics for defence, aerospace and security customers worldwide.

ELNA GmbHTangstedt, Germany · 11-50

Manufactures rugged MF/HF military and submarine antennas under the DUK brand. Installed on naval fleets worldwide including the German Navy. Founded 1952, all products made in Germany near Hamburg.

ElwaveCarquefou, France · 11-50

ELWAVE designs, manufactures and sells electromagnetic detection, navigation and characterization systems based on innovative "electric sense" technology for underwater and industrial robotics.

EnamorGdynia, Poland · 51-200

Maritime electronics spin-off of Gdynia Maritime University producing navigation, communication and automation systems for the Polish Navy and commercial fleets. Holds NATO SECRET clearance and employs 98 specialists.

ETMEAthens, Greece · 11-50

Athens-based engineering firm founded in 1980 providing system engineering for complex defence systems and maritime surveillance solutions including the DECISMAR platform and FloatMast floating sensor networks for littoral and SLOC monitoring.

EUROATLASHamburg, Germany · 11-50

Builds the Greyshark family of autonomous underwater vehicles for long-range ISR and subsea infrastructure protection. The hydrogen-powered Foxtrot variant can operate for 16 weeks covering 11,000 nautical miles. Partnered with Rheinmetall for coastal defence integration.

GREYSHARK Autonomous Underwater Vehicle

Long-endurance autonomous underwater vehicle developed with EvoLogics for mine countermeasures, subsea infrastructure monitoring, ISR, coastline defence and patrol missions.

Power Electronics

Rugged pulse power, launcher power supply and naval UPS systems designed for weapon systems, navigation, communications, control and other mission-critical defence platforms.

Day and Night-View Systems

High-precision opto-electronic systems combining electro-optical sensors, thermal imaging and AI-assisted image processing for ground vehicles and naval platforms.

Counter-Drone Technology

AI-driven counter-drone capabilities focused on detection, classification and mission-system integration for defence and critical-infrastructure protection.

EvoLogicsBerlin, Germany · 51-200

Designs biomimetic underwater robots and acoustic communication systems for naval and offshore operations. Products include autonomous underwater vehicles inspired by penguin locomotion and dolphin-based acoustic modems for subsea positioning. Founded in 2000 in Berlin.

FLANQRostock, Germany · 11-50

Designs and manufactures autonomous uncrewed surface vessels for naval defence including the Q-RECON series and underwater vehicles. Combines AI-powered Q-MIND autonomy software with maritime hardware for coastal surveillance and special forces operations.

ForcysPortsmouth, United Kingdom · 51-200

Forcys develops underwater defence technology, bringing together sonar, maritime sensing and autonomous-system expertise for naval and subsea security missions.

FrequentisVienna, Austria · 1001-5000

Frequentis builds safety-critical communication and information systems for air traffic management, defence, public safety, maritime and public transport operations.

Frost UnmannedStora Höga, Sweden · 11-50

Swedish builder of sovereign unmanned aerial and surface vehicles for NATO-aligned defence customers, including the Arrow-600 UAV and Tracer-160 USV. Designs and manufactures its own composite airframes from Stora Höga on the Swedish west coast.

Graal TechGenoa, Italy · 11-50

Graal Tech develops autonomous underwater vehicles, unmanned surface vehicles and modular maritime robotics for surveillance and defence applications.

GutmarSant Cugat del Vallès, Spain · 51-200

Precision machining and subsystem assembly firm in Sant Cugat del Vallès supplying aerospace, defence, nuclear fusion, submarine and space customers since 1951. Backed by Hyperion Fund and operates +15,000 m2 of facilities.

HavguardLeknes, Norway · 1-10

Develops AI-enabled technologies for real-time multimodal underwater communication and submarine detection, specializing in magneto-inductive wireless communication systems to protect critical underwater infrastructure.

Hefring MarineReykjavík, Iceland · 11-50

AI-powered marine intelligence company providing real-time vessel guidance and fleet management systems (IMAS) to enhance safety, fuel efficiency, and sustainability for commercial and defence vessels.

HGH Infrared SystemsIgny, France · 51-200

HGH Infrared Systems designs electro-optical and infrared surveillance systems for defence, naval, security and critical-infrastructure missions.

High EyeDordrecht, Netherlands · 11-50

VTOL drone manufacturer supplying the Dutch Ministry of Defence with the Airboxer UAV for maritime and land operations. The 32 kg system flies 3-4 hours with 7 kg payload capacity and 50 km range, IP-67 rated for all-weather use.

HonuWorxAberdeen, United Kingdom · 11-50

Aberdeen subsea robotics company developing uncrewed underwater deployment platforms, Loggerhead systems and cloud-edge control software for offshore operations.

HydromeaSwitzerland · 11-50

Hydromea develops subsea communication, inspection and propulsion technologies for ocean data acquisition, infrastructure security and defence underwater operations.

HydromechPomlewo, Poland · 51-200

Manufactures military hydraulic systems, mobile antenna masts, levelling supports and power units for tanks, armoured vehicles and naval vessels. Holds AQAP 2110 NATO quality certification and a special production concession from the Polish Ministry of Interior.

IDS Ingegneria dei SistemiItaly · 201-500

IDS Ingegneria dei Sistemi develops UAVs, unmanned surface vehicles, electromagnetic engineering tools and radar-based safety systems for aerospace, naval and security markets.

JET ConnectivityUnited Kingdom · 11-50

Maritime connectivity company building AI-driven 5G mesh networks for offshore, autonomous and contested environments. Selected for NATO DIANA Mission Track in 2026.

KNL NetworksOulu, Finland · 11-50

Finnish maritime IoT connectivity company that developed secure mesh network technology for global maritime communications. Acquired by Telenor Maritime in 2020.

CNHF Manpack

Portable tactical wideband HF radio with cognitive spectrum sensing, receiving over 4,000 calling channels simultaneously, supporting data rates up to 300 kbps with AES256 encryption and SATCOM-denied operation.

CNHF1 Radio

Rack-mounted cognitive HF radio system that receives the full HF spectrum at once, listens to 2,500+ calling channels simultaneously, and establishes links in under one second with wideband data rates up to 153 kbps.

CNHF Evolve

A compact 600g turn-key device that upgrades legacy HF and VHF radios from any vendor with KNL cognitive waveform, AES256 encryption, and modern digital services including webmail, without replacing existing equipment.

Kraken Technology GroupLondon, United Kingdom · 51-200

British company developing disruptive maritime capabilities including advanced littoral, surface, and subsurface autonomous platforms for defence and commercial applications using cutting-edge composite materials and rapid prototyping.

K3 Scout

An 8.4m autonomous USV with 55-knot top speed, 650 NM range, and 600 kg modular payload capacity, available in three variants up to the 18.6m MAX with 10,000 kg payload and 2,000 NM range.

K4 Manta

An all-electric foiling uncrewed surface-subsurface vessel (USSV) that transits at up to 45 knots on the surface before submerging to 10m depth for covert ISR, loitering, or strike missions.

K5 Kraken

A 15.25m armed maritime precision engagement platform hitting 65 knots, carrying twin 7.62mm remote weapon stations, four multi-role missiles, and four aft-launched torpedoes for crewed or autonomous operations.

Lidan MarineLidköping, Sweden · 51-200

Naval launch and recovery systems for variable depth sonars, towed array sonars, AUVs and mission modules. Supplies handling equipment for anti-submarine warfare and mine countermeasures on the Visby-class corvette and other naval platforms.

LumibirdFrance · 501-1000

Lumibird develops laser technologies and military laser rangefinders for defence, naval, aerospace, industrial and medical applications.

Malloy AeronauticsMaidenhead, United Kingdom · 51-200

UK heavy-lift UAS manufacturer building all-electric VTOL logistics drones for military, government and commercial missions, including battlefield resupply and last-mile operations.

Marine AIPlymouth, United Kingdom · 11-50

Maritime autonomy software for uncrewed surface vessels, including GuardianAI for defence applications. Technology powered the Mayflower Autonomous Ship's transatlantic crossing and is used by Plymouth's USV cluster.

Marine InstrumentsNigrán, Spain · 51-200

Spanish marine electronics manufacturer building the M5D-Airfox solar UAV for naval surveillance, awarded a contract by the Spanish Navy's Mine Countermeasures Force. Also produces ocean monitoring and tracking buoys.

Marstrom CompositeVästervik, Sweden · 11-50

Manufactures carbon composite parts for aerospace, defence and naval customers, including camera housings on 350+ defence drones and structural parts on 10 coastguard corvette boats. Founded 1983, acquired by Scandinavian Astor Group in 2023.

MindchipTallinn, Estonia · 11-50

Estonian AI company developing autonomous vessel technology with real-time decision-making capabilities for maritime operations and defence applications.

Mobile MonitoringPoland · 1-10

Polish environmental monitoring platform deploying proprietary USV drones, ROV underwater drones, AI-powered cameras and sensor buoys for waterway surveillance, critical infrastructure protection and environmental threat detection.

MSubsPlymouth, United Kingdom · 51-200

Designs, builds and operates manned and unmanned submersibles for military and commercial markets, including extra-large autonomous test submarines awarded a £1 million DASA contract for the Royal Navy. Operates from Plymouth with a sister facility in Round Rock, Texas.

NautrikStockholm, Sweden · 11-50

Develops maritime drone platforms and autonomous systems for naval and commercial marine applications. Specializes in unmanned maritime vehicles for surveillance.

NEWT21Riga, Latvia

Latvian unmanned surface vehicle manufacturer engineering advanced USVs and composite solutions for critical maritime defence and civilian missions.

Ocean Modules SwedenÅtvidaberg, Sweden · 11-50

Manufacturer of six-degrees-of-freedom inspection-class ROVs built in Sweden. The V8 M500 platform is integrated into a UXO disposal system in service with the UK Royal Navy for mine investigation and neutralisation, and also supplies the Finnish and Korean navies.

OceanScan-MSTPorto, Portugal · 11-50

Spin-off from the Underwater Systems and Technology Laboratory at Porto University building the LAUV (Light Autonomous Underwater Vehicle) for maritime surveillance and mine countermeasures. Supplies the Portuguese Navy and has participated in European Defence Agency unmanned maritime systems projects.

RaymetricsAthens, Greece · 11-50

Greek lidar company developing remote sensing systems for defence applications including UAV detection, CBRN threat analysis, maritime surveillance and optical ground stations.

Robosys AutomationSouthampton, United Kingdom · 11-50

Develops VOYAGER AI maritime autonomy software that converts crewed vessels into uncrewed surface vessels with IMO Degree 4 autonomy, sold to government and defence customers. Opened Southampton UK headquarters in 2025 with offices in USA, Canada and India.

RTsysCaudan, France · 11-50

Designs and manufactures underwater acoustic systems, autonomous underwater vehicles and mine countermeasures equipment for navies, research institutes and commercial maritime operators.

ScanmaticArendal, Norway · 51-200

Hydroacoustics and sonar specialist supplying NATO navies with anti-submarine warfare training systems, torpedo countermeasures, sonar test and calibration kit and radar surveillance. Sonar3 is the company's latest signal-processing platform, developed with FFI for both manned and unmanned naval systems.

SchiebelWiener Neustadt, Austria · 201-500

Austrian defence manufacturer of CAMCOPTER unmanned air systems, naval ISR platforms and mine detection systems used by European and international armed forces.

CAMCOPTER S-100

Operationally proven VTOL unmanned air system for maritime and land ISR, surveillance, target acquisition and shipborne operations.

CAMCOPTER S-300

Larger next-generation VTOL UAS with longer endurance and payload capacity for demanding naval and multi-domain missions.

Mine Detection Systems

Schiebel mine detection systems and defence products for military engineering and security operations.

ScioTeqBelgium · 201-500

ScioTeq builds rugged visualization systems, displays, computers and consoles for avionics, defence, security, naval and air-traffic-control applications.

SEA-KIT InternationalTollesbury, United Kingdom · 11-50

UK builder of remotely controlled uncrewed surface vessels with defence and security configurations for maritime missions that reduce personnel risk at sea.

SEABEREspoo, Finland

Finnish maritime software company providing AI-assisted fleet scheduling and optimization platform for bulk and breakbulk shipping to reduce inefficiencies, costs, and environmental impact.

SeacrasZadar, Croatia

Provides suite of marine environmental and coastal surveillance solutions using satellite-derived oceanographic data and AI to detect pollution hazards and support ESG reporting.

SEAir PlatformsFrance · 11-50

SEAir Platforms develops crewed and uncrewed foil-equipped maritime platforms for defence and security missions, focused on speed, stability and stealth.

SEATOM TechnologiesPorvoo, Finland

SEATOM Technologies develops modular micro-nuclear reactor systems for marine and extreme environments. Selected for NATO DIANA's Operations in Extreme Environments cohort, SEATOM offers the OCEAN-SMR™ system for naval and seabed operations, supporting the maritime industry's transition to Net Zero.

SeeByteEdinburgh, United Kingdom · 51-200

SeeByte develops software for uncrewed and autonomous maritime systems, including mine-countermeasure toolboxes, mission autonomy and target-recognition systems.

Sirius InsightPortsmouth, United Kingdom · 11-50

Sirius Insight develops AI-enabled maritime surveillance and decision-support systems for monitoring coastal, port and offshore environments.

Skarv TechnologiesTrondheim, Norway · 1-10

Develops software and hardware solutions for autonomous robotic systems operating in marine environments, specializing in mission-critical applications that require high degrees of self-dependence and robustness.

SkytekDublin, Ireland · 51-200

Space and maritime surveillance software company building ISS mission-critical systems for NASA and ESA. Provides real-time situational awareness platforms for global vessel monitoring, dark vessel detection, and command and control across sea, land and air.

SOTIRIA TechnologyGreece

AI-powered maritime defence sensors using fluxgate magnetometers and hydrophones for underwater threat detection.

SR RoboticsKatowice, Poland · 11-50

Develops remotely operated and autonomous underwater robots for hull inspection, mine countermeasures and subsea infrastructure monitoring. Raised €8.4 million in 2025 from BGK-backed Vinci fund to scale dual-use underwater systems.

SternulaAalborg, Denmark · 11-50

Aalborg-based small satellite operator building the world's first commercial VDES constellation in low Earth orbit, providing AIS 2.0 maritime connectivity for coast guards, navies and shipping authorities. First satellite operational since early 2023.

Steyr MotorsSteyr, Austria · 51-200

Develops high-performance diesel engines with best-in-class power-to-weight ratios for military vehicles and naval vessels. Holds a €350M order backlog supplying engines for Rheinmetall's Panther main battle tank, with 110 employees in Steyr.

Stickleback RoboticsTallinn, Estonia · 1-10

Autonomous marine drones for maritime surveillance and defence. Morpheus and Neo platforms carry 180kg payloads, operate at sea state 4 with thermal and sonar sensors, and coordinate as swarms.

subdronVienna, Austria · 11-50

Autonomous underwater drones for subsea surveillance and hull inspection using proprietary Relative Object Navigation technology. Generates 10,000+ data points per square metre for port security and critical infrastructure monitoring without manual intervention.

SUBmerge BalticRiga, Latvia · 11-50

Autonomous underwater drones for maritime defence and infrastructure protection. PIKE AUV covers 150km range at 500m depth with 20kg payload. Exhibited at DSEI 2025.

SubSea CraftPortsmouth, United Kingdom · 51-200

UK maritime technology company developing advanced surface and subsurface craft, including VICTA, MARS USV and CADDIS systems for contested littoral and defence missions.

Subsea TechMarseille, France · 11-50

Designs and manufactures mini-ROVs, USVs and underwater camera systems for marine inspection and defence. Twice awarded Best Defence SME by the French Ministry of Defence, with hull inspection and harbour security systems deployed across multiple countries.

SUEXVillorba, Italy · 11-50

Villorba-based manufacturer of diver propulsion vehicles with over 20 years of design experience. The Nero XJ, Nero C, Nero 1 and Nero 2 DPVs are sold exclusively to state security forces for combat-swimmer missions to depths of 200 metres.

Summa DefenceFinland · 51-200

Summa Defence develops and scales Finnish defence technologies, including ZEUS FPV drones, maritime systems, land technologies and XR near-eye display solutions.

SunCubesMilan, Italy · 1-10

Milan Polytechnic spin-off developing laser-based wireless power beaming systems that deliver 200W over 3+km distances to drones, sensors, and underwater platforms. Won the Italian Navy DEEP LIGHT project award in 2026 for powering autonomous underwater systems.

Tcherno MoreVarna, Bulgaria

Privately owned Bulgarian producer of marine and river radars, coastal surveillance, ground surveillance and airport surface movement radar systems. Supplies the Bulgarian Border Police, Bulgarian Navy and Maritime Administration. BDIA member based in Varna.

Team-ConceptBielsko-Biala, Poland · 11-50

Polish manufacturer of special vehicles, aluminium boats and landing craft for the Polish Armed Forces and special operations units. Produces the Wirus 4 SOF tactical vehicle.

TYVA EnergieAnnonay, France · 11-50

Modular lithium battery manufacturer producing custom high-density packs for defence, robotics, and subsea applications. Supplies Thales Alenia Space and ALSEAMAR special forces underwater vehicles from its factory in Annonay, France.

UAV Navigation-Grupo OesíaMadrid, Spain · 51-200

UAV Navigation-Grupo Oesía develops autopilots, navigation systems and GNC solutions for UAVs, loitering munitions, target drones, C-UAS interceptors and USVs.

VECTOR-600

Autopilot product for larger or more demanding unmanned systems.

UFORCELondon, United Kingdom · 11-50

UK-registered defence platform unifying combat-proven Ukrainian unmanned systems, including MAGURA USVs, Nemesis strike drones and Fury ground robots. Raised $50M seed at a $1B valuation, with Ben Wallace on the board.

Uni-SafeWedel, Germany · 11-50

Builds military inflatable boats and rigid-hull inflatables for special forces, rescue services and naval operations. Based near Hamburg, the company has designed customized boats for government agencies and security forces since 1987.

UnpluggedGrimstad, Norway · 1-10

Builds inductive contactless slip rings that transfer power and data magnetically across air gaps for robotics, defence platforms and underwater drones, eliminating the wear and debris of traditional brush-based slip rings. Selected for NATO DIANA's 2026 cohort to adapt its underwater wireless charging technology for NATO defence needs.

UnseenlabsRennes, France · 50-100

Operates a LEO satellite constellation that detects radio frequency signals from ships at sea, tracking dark vessels that disable AIS transponders to avoid detection.

UPTEKOSkanderborg, Denmark · 11-50

Develops a marine-grade autonomous unmanned aerial system used by defence, police and fire services for reconnaissance, surveillance and border patrol from a base in Skanderborg.

Valyra AerospaceValencia, Spain · 1-10

Valencia-based UAV manufacturer spun out of the Polytechnic University of Valencia, developing VTOL platforms including the hydrogen-powered VX-110 for maritime, border, counter-narcotics and search-and-rescue missions.

Water LinkedNorway · 11-50

Water Linked develops underwater sensors, DVLs, 3D sonar, acoustic positioning and modems for underwater robotics, public authorities, defence and subsea operations.

WorkswellPrague, Czech Republic · 11-50

Czech thermal imaging company developing UAV, UGV, maritime and fixed-security payloads, thermal cores and imaging modules for defence, border surveillance and industrial monitoring.

WSenseRome, Italy · 11-50

Rome-based Sapienza University spin-off building underwater wireless communication networks and the Internet of Underwater Things. Contributed to NATO underwater communications standardization (NIAG 190, SG243) and supplies Fincantieri's DEEP naval surveillance system.

ZelimEdinburgh, United Kingdom · 11-50

Zelim develops intelligent maritime safety and rescue technology to make oceans, seas and waterways safer. The company provides advanced detection, tracking, and alerting systems including ZOE (intelligent detection system), SWIFT (rapid man overboard recovery system), and GUARDIAN (uncrewed rescue vessel). Zelim serves the cruise/passenger and offshore energy sectors with ISO 9001 certified solutions.

ZeroUSVPlymouth, United Kingdom · 1-10

ZeroUSV designs, builds and operates autonomous uncrewed surface vessels for defence, security, survey and scientific offshore missions.

Oceanus12

Transportable autonomous USV designed around a 40-foot ISO footprint, with modular payload integration and multi-week endurance.

Oceanus17

Larger OCEANUS platform for longer endurance missions, heavier payload integration and harsher sea states while remaining road transportable.

Autonomous Glider Deployment

USV-enabled system-of-systems capability for deploying subsea gliders from an uncrewed surface vessel.

ZURADOstrow Mazowiecka, Poland · 51-200

Manufactures radar equipment and marine navigation radars, originally established in 1978 as part of the RADWAR electronics group. Produces equipment and systems for military and dual-use security applications.