Quantum Systems Raises $1.2B in Series D for Defense Tech

Jan de Vries · 2026-07-02

Quantum Systems, the German leader in unmanned systems, just closed a massive $1.2 billion Series D funding round. That's a huge jump from their last raise, and it more than doubles their valuation to around $8 billion post-money. This is one of the biggest defense tech financings Europe has ever seen. ### Who's Behind the Money? The round was co-led by heavy hitters like Blackstone, Noteus, Airbus, and Advent. They were joined by a bunch of institutional investors, including BOND, Fidelity Management & Research Company, Wellington Management, A.P. Moller Holding, and Elephant Lake Ventures. Existing backers like Balderton and HV Capital also chipped in. Florian Seibel, co-CEO and co-founder of Quantum Systems, said it best: "The future is unmanned. Defense will be defined by autonomous systems that can operate together across domains in real time." He added that the company is profitable and already deployed around the world, and this new cash gives them over $1.2 billion in dry powder to execute their vision. ### A Busy Year for European Drone Funding This Series D comes after a flurry of activity in the European drone and defense tech space. In 2026 alone, EU-Startups reported at least $72 million in similar rounds across unmanned systems software, UAV guidance, counter-UAS, and more. Companies like Six Robotics, Kelluu, AirHub, and others have been raising money too. Quantum Systems has been on a roll. They raised a $172 million Series C in May 2025, a $194 million Series C extension in November 2025, and a $162 million financing package in February 2026. Combined with this new round, that's over $1.15 billion in disclosed funding—way more than any other European drone company this year. ### What This Means for Defense Tech Sven Kruck, co-CEO of Quantum Systems, said the financing lets them "scale production, expand globally, and deliver the next generation of AI-powered autonomous systems across air, land, sea and adjacent domains." The company was founded in 2015 and has become a leading European deep tech defense prime. They build interoperable unmanned systems that combine battle-proven hardware, software, and AI. Their secret weapon? MOSAIC UXS, a software backbone that connects platforms, sensors, counter-UXS systems, drone ports, and partner tech into one system. With this new funding, they'll accelerate the shift from individual drones to an entire family of connected systems. ### Where the Money Goes Proceeds will be used to expand production capacity, strengthen supply chain resilience, and scale delivery across allied markets. They're also investing heavily in software and AI capabilities. Jonas Jarosch, CFO of Quantum Systems, bragged about their "triple-digit growth, double-digit profitability, and disciplined execution at scale." ### Real-World Impact Quantum Systems isn't just talking—they're delivering. In Ukraine in 2025, their systems executed over 19,000 missions. They've also expanded production across Germany, Ukraine, the United States, Australia, and Romania. This isn't some startup playing around; it's a real defense partner with real results. ### The Big Picture This funding round shows that European defense tech is no longer an afterthought. Quantum Systems is proving that you can build a world-class defense company outside of the U.S. With over $1.2 billion in the bank and a clear vision for autonomous warfare, they're poised to disrupt the entire industry. The future is unmanned, and Quantum Systems is leading the charge.