Defence has become one of the fastest-moving parts of the UK’s private company market. The businesses in this ranking build interceptors, uncrewed vessels, drones, radar, simulation software, and the AI systems behind them. Using Beauhurst data, we’ve ranked 100 UK-headquartered military and defence companies by the total equity funding they have raised.
Together, the companies in our wider analysis have raised £1.70b. Some £695m of that, or 41%, has landed in 2026 alone, with a quarter of the year still to run.
This is not a ranking of the UK’s largest defence contractors by revenue or order book. Instead, it shows which defence companies have attracted the most equity investment.
The UK military and defence sector
Beauhurst’s military and defence classification covers UK companies whose products and services are built for the armed forces, national security agencies, and the wider defence supply chain.
It spans both recently founded software companies and long-established manufacturers that have supplied the Ministry of Defence for decades.
Broadly, they fall into three groups:
- Software and autonomy: AI, simulation, command-and-control, and intelligence analysis platforms. This is the largest group by company count.
- Hardware and platforms: Interceptors, uncrewed vessels, drones, munitions, and the specialist manufacturing base that supplies them.
- Sensing and secure systems: Radar, precision optics, radiation and spectrum detection, counter-drone equipment, and defence-grade cyber security.
Application software appears as a secondary tag on 50 of the 111 companies tracked on the platform.
There are 111 active military and defence companies in the cohort, compared with 47 at the end of 2015. That is growth of 136% over the decade.
Between them they report £2.39b in total turnover, an average of £74.7m, and an estimated 15,897 employees, or roughly 180 per company.
Some 32 companies file full financials, 29% of the sector and the highest reporting rate in this series. That reflects how much of the defence base consists of mature, contract-bearing suppliers rather than pre-revenue startups.
Military and defence funding in the UK
The companies in our analysis have raised £1.70b to date.
Cambridge Aerospace leads by a wide margin with £445m, raised since its founding in 2024 to build low-cost interceptors for allied air defence.
Behind it sit Chemring (£178m), the listed aerospace and defence supplier, Kraken Technology Group (£138m), which builds uncrewed surface vessels for the Royal Navy and NATO partners, Faculty (£69.6m), an AI consultancy with substantial government work, and Hadean (£54.0m), whose simulation platform supports defence planning.
Two of those five were founded within the last six years and scaled on Ministry of Defence contracts.
The top 100 have raised £1.60b, or 94% of the sector’s lifetime total. Concentration within it is steep: the top five hold 55%, the top 10 hold 69%, and Cambridge Aerospace alone accounts for 26% of everything the sector has ever raised.
Two caveats apply. Chemring’s total reflects decades as a public company rather than venture rounds, and 59 of the 100 companies have raised under £5m.
Where are the UK’s military and defence companies?
London leads with 37 of the top 100, ahead of the South East with 22 and the South West with 12.
The golden triangle of London, the South East, and the East of England accounts for 66 companies between them.
The list spans 13 regions in total, including smaller clusters in Wales and the East Midlands with four companies each.
One qualification. Cambridge Aerospace and Kraken Technology Group are both tagged to London by registered office, while operating from Cambridgeshire and Hampshire respectively.
Military and defence companies by stage of growth
The top 100 divides evenly across the funding lifecycle, with 30 seed-stage companies, 27 established, 21 at venture stage, and 20 at growth stage. The wider 111-company universe follows the same shape.
What sets defence apart is survival. One dead company, Force Select (£500,000), and one zombie, Manta (£2.62m), give a mortality rate of 0.9%, the lowest of any sector in this series.
No company carries an exited tag either, pointing to a sector still assembling itself rather than consolidating.
