Cambridge Aerospace raises $300 million to scale drone-interceptor production
The UK defence start-up, founded just last year, is now valued at $3.4 billion and holds contracts with the British Armed Forces to shoot down low-cost attack drones.
Key points
- Cambridge Aerospace raised $300 million in Series C funding in July 2025, bringing its total valuation to $3.4 billion.
- The company was founded in 2024 and has already secured contracts with the UK Ministry of Defence.
- Its first product, Skyhammer, can intercept drones and low-speed missiles at ranges of over 30 kilometres.
- A follow-on product called Starhammer is planned for market by 2027.
- The round was led by DFJ Growth, with participation from Lux, Accel, Lakestar and others.
Cambridge Aerospace, a British company that builds systems to shoot down enemy drones, has raised $300 million in a Series C round, the type of large, later-stage funding that typically signals a start-up is moving from prototype to full production. The raise follows a $200 million Series B completed in April 2025, just months earlier. The company is now valued at $3.4 billion.
The money will go toward expanding manufacturing and developing new products, including a next-generation system called Starhammer, due in 2027.
What does Cambridge Aerospace actually make?
The company's first product is Skyhammer, an interceptor drone, meaning a flying device launched to destroy incoming aerial threats before they reach their target. Skyhammer has a range of more than 30 kilometres and a top speed of 700 km/h. It is designed to bring down low-cost attack drones and slow-moving missiles.
Cambridge says it started building Skyhammer in January 2025 and had it flying within six weeks. Since then, the company has run weekly test flights. Recent tests, the company states, showed the system could autonomously identify, track and destroy drone targets under varied conditions. Those are company claims, not independently verified results from a peer-reviewed study or government audit.
The UK Ministry of Defence has placed contracts with Cambridge Aerospace, including one to supply low-cost interceptors for British Armed Forces. The terms of those contracts have not been made public.
Why does this matter right now?
Cheap commercial drones have become a serious problem on modern battlefields. They cost a few hundred dollars to buy but can be devastating. Shooting them down with expensive missiles is not sustainable. Cambridge Aerospace's pitch is that Skyhammer can match the economics: an affordable interceptor for an affordable threat.
Investors are paying attention across the board. Quantum Systems raised $1.2 billion in the same month for autonomous frontline drones. Mach Industries, a US maker of uncrewed defence systems, raised $300 million in June 2025. Defence robotics is attracting serious money fast.
| Company | Amount raised | Date |
|---|---|---|
| Cambridge Aerospace | $300 million (Series C) | July 2025 |
| Quantum Systems | $1.2 billion | July 2025 |
| Mach Industries | $300 million | June 2025 |
| HavocAI | $100 million | May 2025 |
What happens next?
Cambridge Aerospace says the new funding will scale manufacturing to meet existing Ministry of Defence contracts and attract new ones from allied nations. The company also intends to keep refining Skyhammer through what it calls "spiral development," an engineering term for building a product in repeated cycles, improving it each time rather than waiting for a finished version.
Starhammer, the follow-on product, is targeted for 2027, though Cambridge has released no technical specifications yet. As first reported by The Robot Report, the company gave no further detail on what the new system will do or how it will differ from Skyhammer.
For ordinary people, the practical upshot is straightforward: the race to build affordable, AI-guided defences against cheap attack drones is accelerating, and European governments are betting public money on it.
