The round was co-led by Blackstone, Noteus, Airbus and Advent. It was supported by institutional investors including BOND, Fidelity Management & Research Company, Wellington Management, A.P. Moller Holding and Elephant Lake Ventures, as well as existing shareholders including Balderton and HV Capital.
Quantum Systems said the financing more than doubled its valuation. The company linked the increase to fast-growing revenue, demonstrated profitability and its market positioning through a multi-domain strategy.
The Series D will accelerate a shift from individual uncrewed platforms to an interoperable family of systems. That family will be connected through MOSAIC UXS, Quantum Systems’ software ecosystem for uncrewed systems.
Alongside the financing, Airbus Defence and Space and Quantum Systems agreed to deepen their strategic collaboration. The companies said the cooperation brings together complementary expertise to accelerate next-generation sovereign European defence capabilities.
Florian Seibel, co-CEO and co-founder of Quantum Systems, said: “The future is unmanned. Defence will be defined by autonomous systems that can operate together across domains in real time.”
“With Quantum Systems, we are building a next generation neo prime that has the potential to disrupt defence as we know it today. We are profitable, deployed around the world and with the latest financing round we now have more than $1.2Bn of dry powder to execute.”
Sven Kruck, co-CEO of Quantum Systems, said: “In just a few years, Quantum Systems has become a trusted defence technology partner. This financing allows us to scale production, expand globally, and deliver the next generation of AI-powered autonomous systems across air, land, sea and adjacent domains.”
Proceeds will be used to expand production capacity, strengthen supply chain resilience and scale delivery across allied markets. Quantum Systems also plans to continue investing in software and AI capabilities.
“Quantum Systems has built a financial profile that sets a new benchmark for the defence market: triple-digit growth, double-digit profitability and disciplined execution at scale,” said Jonas Jarosch, CFO of Quantum Systems. “This financing unlocks our next phase of growth as we industrialise our multi-domain platform, scale production across allied markets and continue investing in the technology infrastructure that defines our long-term competitive position.”
Quantum Systems said it enters this phase with proven operational deployment at scale. In Ukraine in 2025, the company’s systems executed more than 19,000 missions.
The company has also expanded its production footprint across Germany, Ukraine, the United States, Australia, Romania, the United Kingdom and the Baltics. This wider industrial base supports its planned scale-up across allied markets.
Michael Schoellhorn, CEO at Airbus Defence and Space, said: “Modern combat is won through decision speed – the ability to capture, process and fuse massive data from air, ground and space faster than the adversary. Autonomous systems are critical, rapidly evolving force multipliers.”
“Their full operational value comes when they are deployed with human oversight, trusted command-and-control structures and seamless integration across crewed and uncrewed assets at the tactical edge. This is why we are excited to deepen our cooperation with Quantum Systems: We are combining crucial architectural, software and AI competencies, thereby accelerating the sensor-to-shooter chain across our joint portfolios.”
“This is where Airbus’ role as a large defence prime is evolving into that of an architect and ecosystem builder.” The comments linked the partnership to faster integration across crewed and uncrewed assets at the tactical edge.
David Kaden, Senior Managing Director at Blackstone, said: “A structural shift in the European defence market has created significant demand for capital to support the sector’s development and the adoption of advanced technologies. We look forward to supporting the company as it scales operations in Germany, expands across allied markets and builds the infrastructure for durable, long-term growth and security.”
Zoé Fabian-Frey, General Partner at Noteus, said: “Quantum Systems reflects the growing strength of Europe’s deep-tech and defence ecosystem. The company has shown how software, AI and operational execution can turn unmanned systems into scalable, sovereign multi-domain capabilities.”
Mike Marshall, Managing Director at Advent, said: “We believe Quantum Systems sits at the centre of the shift towards unmanned systems, with the product depth, customer traction and industrial ambition to scale internationally. This investment reinforces our commitment to next-generation defence technologies and we are looking forward to partnering with the team to expand production and to build for long-term growth.”
Morgan Stanley & Co. International plc served as exclusive financial adviser and placement agent for the transaction. The financing positions Quantum Systems to industrialise its multi-domain platform and expand production for allied defence markets.
