European Defence Companies Database

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SeqredGdynia, Poland

Provides OT, ICS and IoT cybersecurity services to industrial and critical infrastructure organisations, covering security audits, penetration testing, red team operations and NIS2 compliance.

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SITTIVimodrone, Italy

Builds voice communication switching systems, recorders and control-room consoles for air traffic control towers and military command centres.

Shark RoboticsLa Rochelle, France

Builds ground robots for firefighting, explosive ordnance disposal and defence logistics, deployed across civil security services and armed forces in 15+ countries.

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Sky Eye SystemsCascina, Italy

Builds fixed-wing tactical drones with electro-optical, infrared and synthetic aperture radar payloads for military and civil surveillance missions.

Rapier X-25Mini-class fixed-wing UAS weighing up to 25 kg with more than 16 hours of endurance and a 100 km datalink range. Carries interchangeable electro-optical/infrared, synthetic aperture radar, LiDAR, multispectral and hyperspectral payloads for intelligence, surveillance and reconnaissance missions. Deployable by two operators in under 15 minutes, it is ITAR-free and built to STANAG 4703 and SAE AER. P-2-6-7 standards. Sky Eye Systems supplies integrated logistics support and operator training alongside the aircraft.View productsRapier X-SkySAR

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SecubloxNeubiberg, Germany

German cybersecurity company building decentralized trust infrastructure for defence data, mission control, digital asset traceability and high-assurance distributed systems.

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ScytalysAthens, Greece

Athens-based defence software and systems integrator specializing in tactical C2 systems, tactical data links, and mission management solutions for land, air, and joint operations. Part of the EFA Group, operating in 16 countries.

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SEA-KIT InternationalTollesbury, United Kingdom

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

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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.

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SEAir PlatformsFrance

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

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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.

SecfenseKrakow, Poland

Cybersecurity company building a User Access Security Broker that deploys multi-factor authentication and passwordless login across enterprise applications without code changes. Trusted by BNP Paribas Bank Polska and major Central European insurers.

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SeeByteEdinburgh, United Kingdom

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

Selenia 2000San Cesareo, Italy

San Cesareo-based military optronics supplier founded in 1992, specialising in night vision, thermal imaging, tactical illumination and target engagement systems. Since 2015 it has manufactured its own products and is an approved source for 317 NATO stock numbers.

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SemiconWarsaw, Poland

Electronics company and NATO-codified supplier (NCAGE 2082H) producing laser modules, EMS assembly services and components for military and industrial applications.

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SenhiveHasselt, Belgium

Counter-drone detection company offering passive RF sensors for airspace security and management. Products include SEN-ID for cooperative drone tracking and SEN-ID+ for non-cooperative threat detection at critical infrastructure.

SensusQTallinn, Estonia

Defence AI startup providing artificial intelligence solutions for military applications and strategic defence systems.

SentechRome, Italy

Italian embedded computing company with 16 years designing electro-optical targeting systems, direction finding antennas, radar target generators and electronic warfare simulation systems for defence applications. ISO 9001 certified with multi-domain AI capabilities.

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Sentinel PhotonicsUnited Kingdom

Laser-based shot detection and positioning system for military rifles, enabling instant sniper location identification. DASA-funded.

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SentiSystemsTrondheim, Norway

NTNU spin-off from the Department of Engineering Cybernetics building the SentiNAV family of GNSS-denied navigation systems for ships, drones and vehicles. Core technology is SentiBoard, a custom board providing nano- to microsecond sensor time synchronization across IMU, LiDAR, cameras and radar.

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Šestan-BuschPrelog, Croatia

Family-owned Croatian manufacturer of aramid-based ballistic combat helmets including the BK-3, standard issue helmet of the Croatian Armed Forces. Has delivered over 2.5 million helmets from its Prelog plant to forces in more than 70 countries.

Silicon MicroGravityCambridge, United Kingdom

Develops high-precision MEMS inertial and gravity sensors for navigation, aerospace, defence, and subsurface exploration applications.

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SilMachFrance

SilMach develops hybrid MEMS components and energy-free sensing technologies used in aerospace, defence and other critical embedded systems.

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SiltecPruszkow, Poland

Provides TEMPEST-certified IT equipment, satellite and radio communications, cryptography, optoelectronic fire-control systems and secure power supply to EU and NATO defence customers. Employs approximately 150 people from its base near Warsaw.

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SimultecBucharest, Romania

Romanian training and simulation company building flight simulators, land and naval trainers, and full mission simulators for defence forces worldwide. Develops high-accuracy flight models, out-of-the-window visual systems, and glass avionics using COTS components.

SintermatMontbard, France

Industrial technology company that designs and produces innovative high-performance materials using the Spark Plasma Sintering (SPS) process for aerospace, defence, luxury goods, and industrial sectors.

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Siralab RoboticsTerni, Italy

Terni-based manufacturer of tactical mini and micro UAS for reconnaissance and surveillance missions, founded in 2007 as a University of Perugia spin-off. Supplies the Italian Armed Forces, police, and civil protection with the SR-X1, SR-X4, and RADON-X platforms.

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Sirius InsightPortsmouth, United Kingdom

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

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SitehopUnited Kingdom

Hardware-based ultra-low-latency encryption for data in motion, including the SAFE Series delivering 200 Gbps full duplex throughput and post-quantum crypto-agility. Raised £7.5M Series A in 2025 and supplies government, critical infrastructure, and telecom networks.

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SKA PolskaWarsaw, Poland

Science-driven SME specialising in optics, holographic lenses, FEM simulations and AI for defence. Participates in EDF projects including ACHILE soldier protection systems and Faraday battlefield AI algorithms.

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Skarv TechnologiesTrondheim, Norway

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.

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SKB Drive TechWarsaw, Poland

Manufactures drive axles, gearboxes and suspension systems for military vehicles including the Jelcz 442.32 4x4 truck and Rosomak APC. Family company with roots dating to 1912, supplying drivetrain components to Polish and Ukrainian armed forces.

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SkudoTallinn, Estonia

Hardware Security Modules and encryption technologies. Advanced cryptographic solutions for defence communications.

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Sky-Hero by AxonBelgium

Sky-Hero by Axon builds tactical uncrewed ground vehicles, aerial vehicles and cameras for indoor reconnaissance, EOD support and tactical surveillance.

SkyaTurku, Finland

Develops autonomous aerial robotics solutions for various applications including transportation, data collection, precision farming, and smart city operations.

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SkyassistKyiv, Ukraine

Skyassist develops the Sirko family of reconnaissance UAV systems and related battlefield communications equipment for Ukrainian frontline military units.

Skycorp TechnologiesTartu, Estonia

Estonian company that develops and manufactures hydrogen-powered drones for emergency response, surveillance, agricultural applications, and infrastructure inspection with extended flight capabilities.

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Skygaard Defense SolutionStockholm, Sweden

Stockholm counter-drone company delivering detection, identification, tracking and response against unauthorised drones through a Counter-Drone Capability As a Service subscription. Operates a demonstration and training centre at Norrköping Airport.

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SkylanceHürth, Germany

Counter-drone startup developing the DroneHammer, a laser-guided interceptor missile that neutralises FPV drones at up to 2,000 metres for around EUR 2,500 per shot. Uses CO2-based fragmentation instead of explosives. Pre-series production planned for Q4 2026.

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SkyPro PropulsionVejen, Denmark

Danish defence rocket and missile producer founded in March 2024 to bring sovereign MLRS production to Denmark. Operates the Skypro Nordic Defense Park on a former NATO base with ammunition storage and test facilities, with a portfolio spanning 122 mm to 400 mm guided rockets.

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SkytaleOslo, Norway

Builds an end-to-end encrypted communications platform with chat, voice, video, file-sharing and location-sharing for Norwegian organisations subject to the Security Act. Hosted in Norway on a zero-trust architecture compliant with NSM recommendations, developed 100 percent by Norwegian developers, and part of the Kongsberg Incubator.

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SkytekDublin, Ireland

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.

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Slipstream DesignShipley, United Kingdom

Slipstream Design develops advanced RF and digital signal processing systems for defence, security, telecommunications, and space. Their flagship ASTRO platform is an ultra-wideband adaptive radio processor delivering resilient sensing and communication technology for mission-critical operations in contested electromagnetic environments.

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SMAG Mobile Antenna MastsSalzgitter, Germany

Europe's only manufacturer of guyless mobile antenna masts up to 40 metres. Over 1,900 units in military service worldwide for communications, radar and surveillance. Bundeswehr supplier since 1974.

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SnowpackParis, France

European cybersecurity startup specializing in internet invisibility technology through their VIPN (Virtual & Invisible Private Network) system, making users, devices, and data invisible to prevent cyber attacks.

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SoftBlueBydgoszcz, Poland

Bydgoszcz-based software house and R&D centre building embedded systems, IoT products and gimbal designs for defence and aerospace. Listed on the Polish NewConnect market.

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Solar MEMS TechnologiesSeville, Spain

Seville-based manufacturer of star trackers and sun sensors for satellites, with 4300+ flight units delivered since 2009 serving space and defence navigation programs.

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Solid GroundNorway

International subsidiary of Norwegian VR training company Trygg-Grunn, building the BASIC VR platform for military and law enforcement procedural training. Founded by ex-military and police personnel and deployed at events including ENFORCE TAC.