Defence tech companies in United Kingdom

AI sensor intelligence platform that turns existing cameras and sensors at transport hubs and critical infrastructure into threat detection networks.

Builds and operates satellites and constellations delivering Earth-observation data and connectivity services to governments and institutions.

Autonomy software for strike drones; its Occam Ambush module provides autonomous detection, tracking and targeting on FPV drones.

Makes Skyhammer, a low-cost radar-guided interceptor to defeat Shahed-type drones and subsonic missiles.

Builds synthetic battlefields where AI-enabled weapons such as counter-drone systems train and iterate against simulated threats.

Develops ducted fan electric propulsion, airframes and launch systems for drones, including engines for low-cost drone interceptors.

Builds modular, open-architecture uncrewed surface vessels such as K3 Scout, K5 Kraken and K7 Sabre for surveillance, force protection and strike missions.

AI-powered binary analysis platform that inspects compiled software and firmware without source code to find malicious functions and vulnerabilities.

Designs and builds deployable sensing, communications and information systems for degraded edge environments, serving the British Army and UK MoD.

Sovereign, AI driven pop up 5G mesh networks on proprietary hardware for contested, denied or remote environments, including buoy mounted maritime nodes.

Builds Scout, a compact solar-powered autonomous surface vessel, and Tether fleet command software for maritime security and anti-submarine warfare.

Space domain awareness company running a global ground based optical telescope network that tracks satellites and debris in all orbits, day and night.

AI decision layer that turns commander intent into coordinated autonomous action across mixed fleets of drones and ground robots.

Ukrainian-founded, UK-headquartered maker of combat-proven uncrewed air, land and sea systems, including Magura naval drones.

Chemically regenerates carbon fibre and aramid composites into defence- and aerospace-grade materials for European supply chains.

Builds a constellation of high-resolution thermal infrared satellites delivering day and night heat intelligence for defence, government and energy users.

Develops autonomous AI guidance systems that let satellites detect jamming and other threats and manoeuvre to safety without ground control.

Builds intelligent autonomous systems that interpret data, coordinate action and support real-time decisions for defence and security users.

Modelling and simulation software providing synthetic environments, digital twins and decision support for defence and national security.

Builds Cobalt, a hardware-agnostic AI command-and-control layer for orchestrating mixed fleets of drones, robots and sensors.

Manufactures advanced semiconductor materials in orbit using returnable ForgeStar satellites, exploiting microgravity, vacuum and extreme temperatures.

Develops combat-tested defence systems including the Chorna long-range autonomous strike platform, tactical ISR UAVs and resilient combat communications.

Edge AI visual autonomy software for drones, counter-drone systems and defence cameras, covering threat detection, tracking and platform control.

University of Southampton spinout building compact cold atom quantum sensors for navigation and timing that keep working when GPS is jammed.

Builds autonomous all electric submarine motherships deploying ROVs, remotely controlled from shore, for subsea inspection, maintenance and repair.

Automates steered-fibre composite manufacturing with Rapid Tow Shearing to produce lighter, stronger structures for aerospace, defence and automotive.

Makes FireBreak, a hardware device that physically isolates and segments networks from the internet on demand to block remote cyber attacks.

AI information intelligence platform that automates research and analysis for defence, national security and commercial customers.

Maritime search and rescue company offering ZOE AI man overboard detection, the Swift recovery conveyor and the Guardian uncrewed rescue vessel.

Digital RF engineering firm behind ASTRO, a field reprogrammable wideband radio processor combining radar and communications modes for congested spectrum.