Startup list · United Kingdom
Defence startups in United Kingdom
Below are the top UK defence startups, ranked by total funding raised. Together the 50 companies on this list have raised a combined $1.7B. The strongest hubs are United Kingdom.
$1.7Bcombined funding · top 50
United Kingdomtop hub
50companies shown
1fast growing
Ranked by total funding · Updated 2026-06-26 · Source: Dealroom
| # | Company | Founded | HQ | Funding |
|---|---|---|---|---|
| 1 |
 C
Cambridge Aerospace
Manufacture of air and spacecraft and related machinery
|
2024 | Cambridge, United Kingdom | $436M |
| 2 |
 R
Reaction Engines
Developer of next generation aerospace engines
|
1989 | Abingdon, United Kingdom | $404M |
| 3 |
 T
Triton Systems
A global business venture company that launches innovative products and solutions in emerging markets, investing in new technologies through in-house incubation and external partnerships
|
1992 | Chelmsford, United Kingdom | $189M |
| 4 |
 A
ALL.SPACE
Developing the world’s most spectrally efficient, low profile antennas that are con-formal, multi-band and electronically steerable
|
2013 | Reading, United Kingdom | $171M |
| 5 |
 B
BAE Systems
Advanced defense, aerospace, and security technology solutions.
|
1971 | London, United Kingdom | $89M |
| 6 |
 A
Adarga$25M+ revenue
AI information intelligence for defence and security
|
2016 | Bristol, United Kingdom | $63M |
| 7 |
 U
Uforce
Autonomous systems across sea, air, and land
|
2025 | London, United Kingdom | $50M |
| 8 |
 H
Hadean
AI-powered synthetic environments for defense and enterprise.
|
2015 | London, United Kingdom | $47M |
| 9 |
 R
Rowden Technologies$25M+ revenue
Transforming mission-critical systems and computing capabilities for the UK and its allies by harnessing advancements in commercial technology and modern engineering methods
|
2017 | Bristol, United Kingdom | $34M |
| 10 |
 S
Skyral
AI-powered digital twins for decision-making simulation
|
2023 | London, United Kingdom | $20M |
| 11 |
 O
Operational Solutions
Counter-drone technologies to face challenges posed by the increasing prevalence of unmanned aircraft systems in airspaces worldwide
|
2010 | Reading, United Kingdom | $20M |
| 12 |
 C
Cyacomb
Cyacomb is helps police forces catch criminals by finding digital evidence fast
|
2016 | Edinburgh, United Kingdom | $18M |
| 13 |
 A
AERALIS
Modular military jet aircraft system for training
|
2015 | Bradley Stoke, United Kingdom | $16M |
| 14 |
 S
Shield Group
Shield Group specializes in the design and manufacturing of machining and assembly solutions such as cast, forged parts, jigs, and fixtures
|
2005 | Leicester, United Kingdom | $15M |
| 15 |
 A
AronditeFast growing
AI software platform connecting autonomous defense systems
|
2023 | London, United Kingdom | $12M |
| 16 |
 V
VIVO Defence Services
Joint venture delivering Defence FM and Housing Maintenance for UK MOD with expertise in asset optimisation and energy management
|
2019 | Newcastle upon Tyne, United Kingdom | $9M |
| 17 |
 S
SmallSpark Space Systems
Enabling business to participate in the lunar economy and developing critical infrastructure to enable human and robotic exploration to the Moon and beyond
|
2018 | Cardiff, United Kingdom | $6M |
| 18 |
 A
Advanced Blast & Ballistic Systems
Active and passive blast protection systems for vehicles
|
2009 | Derby, United Kingdom | $5M |
| 19 | S Sarantel Patented ceramic filtering antennas for portable wireless devices | 2000 | Wellingborough, United Kingdom | $5M |
| 20 |
 Q
QinetiQ
Leading defence tech & security company offering technical knowledge & advice to solve some of the most challenging problems
|
1956 | Mary Tavy, United Kingdom | $4M |
| 21 |
 C
Certo Aerospace
Large UAVs enhancing defence, disaster relief, construction, energy, and logistics sectors
|
— | Frome, United Kingdom | $4M |
| 22 |
 D
Disruptive Industries
Disruptive Industries (DI) is a technology company that builds threat detection systems
|
2023 | London, United Kingdom | $4M |
| 23 |
 V
VIZGARD
Visual autonomy software at the edge, fully automating our protective cameras
|
2020 | London, United Kingdom | $4M |
| 24 |
 O
Occam
GPS-independent autonomy software for unmanned systems
|
2025 | London, United Kingdom | $3M |
| 25 |
 M
Metrasens
Advanced ferromagnetic detection systems for security environments
|
2005 | Malvern, United Kingdom | $3M |
| 26 |
 S
SHIELD SPACE
Autonomous guidance systems for satellite orbital defence.
|
2025 | Lincoln, United Kingdom | $3M |
| 27 |
 L
Lodestar Space
Creating the frontline service to secure and protect all off-Earth operations
|
2023 | Newington, United Kingdom | $3M |
| 28 | A Astut Hybrid AI for high-stakes, unseen decision support | — | Oxford, United Kingdom | $2M |
| 29 |
 E
Ethicronics
Low-level software securing electronics at scale - ensuring hardware authenticity and resilience across critical systems
|
2022 | Cambridge, United Kingdom | $2M |
| 30 |
 O
Openworks
Technology and products for security and counter terrorism authorities
|
2015 | Prudhoe, United Kingdom | $2M |
| 31 |
 M
Mutable Tactics
AI-driven autonomy solutions enhancing defense operations with real-time decision-making and drone neutralization capabilities
|
2024 | London, United Kingdom | $2M |
| 32 |
 M
Marble Aerospace
Autonomous drone service for real-time maritime surveillance
|
2016 | Cheadle, United Kingdom | $2M |
| 33 |
 M
Mako Aerospace
Mako is building the technologies required for fast, inspiring, electric aerospace
|
2019 | Edinburgh, United Kingdom | $1M |
| 34 |
 D
Drone Defence
Uk’s first specialist anti-drone security company
|
2016 | London, United Kingdom | $1M |
| 35 |
 O
Offset labs
The AI Lab for Defence and National Security
|
2022 | London, United Kingdom | $990K |
| 36 |
 F
Flare Bright
Solves the problem of “what to do if GPS fails” for drone operations by using smarter, software-based INS
|
2015 | Westcott, United Kingdom | $660K |
| 37 |
 A
ASV Global
Developer of unmanned and autonomous surface vessel systems.
|
1998 | Portsmouth, United Kingdom | $654K |
| 38 |
 A
Airspeed Electronics Ltd
Advanced acoustic drone detection and tracking system for wide area deployment and autonomous operation
|
2018 | Biggleswade, United Kingdom | $592K |
| 39 |
 R
Roke
Advanced engineering and technology for defense and security
|
1956 | Romsey, United Kingdom | $564K |
| 40 |
 D
Devtank
Open-source test, measurement, and automation solutions
|
2014 | Derby, United Kingdom | $528K |
| 41 |
 M
Mtl
Microwave Technology Ltd - Home
|
2013 | Rotherham, United Kingdom | $322K |
| 42 |
 F
Foresight Innovations Ltd
Foresight Innovations develops advanced materials such as lightweight or anti-ballistic composite materials
|
2016 | Nottingham, United Kingdom | $322K |
| 43 |
 G
Gibson Robotics
Advanced Drone Technology: Versatile, autonomous, and safe
|
2020 | Glasgow, United Kingdom | $304K |
| 44 |
 D
DisarmCo
Munitions Disposal | Removing Mines, Munitions & UXO | Disarmco
|
2012 | Southend-on-Sea, United Kingdom | $197K |
| 45 |
 A
A2E Embedded Design
Full-cycle embedded electronic hardware and software design
|
2002 | Blairgowrie and Rattray, United Kingdom | $185K |
| 46 |
 S
Seeing Systems
Modular, autonomous strike drones for defence operations.
|
2023 | London, United Kingdom | $125K |
| 47 |
 D
DroneTector
High-resolution radar systems for detecting small drones
|
2024 | United Kingdom | $125K |
| 48 |
 A
Archangel Aerospace
AI systems for unmanned navigation and threat detection
|
2010 | London, United Kingdom | $90K |
| 49 |
 A
AEROTRON COMPOSITES
UK composites company manufacturing and engineering lightweight composites for the aerospace, automotive, defence and motorsport industries
|
2012 | Chatteris, United Kingdom | $55K |
| 50 |
 Z
Zest Consult
AI and digital technology solutions for transport/defence
|
2020 | York, United Kingdom | $46K |
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