Munich-based autonomous drone maker Quantum Systems closed a $1.2 billion Series D co-led by Blackstone, Airbus, Advent International and Noteus, more than doubling its valuation to about $8 billion from $3.5 billion in late 2025. Additional investors included Bond, Fidelity Management & Research, Wellington Management, Balderton and HV Capital. The round is one of the largest defense-technology financings in European history and lands as capital pours into autonomous warfare.
From Reconnaissance To Neo-Prime Ambitions
Founded in 2015 by aerospace engineers Florian Seibel, Armin Busse and Tobias Kloss, Quantum Systems began building fixed-wing VTOL drones for agricultural mapping. Russia's 2022 invasion of Ukraine accelerated the pivot to defense; the company says its Vector systems flew more than 19,000 missions in Ukraine during 2025. Co-CEO Florian Seibel called the round a mandate "to disrupt defense as we know it today," adding that Quantum is now profitable with more than $1.2 billion of dry powder to expand into ground and maritime autonomy.
Where The Capital Goes
Quantum Systems said the funds will scale manufacturing across Germany, Ukraine, the United States, Australia, Romania, the United Kingdom and the Baltics, harden its supply chain and accelerate deliveries to allied countries. Blackstone senior managing director David Kaden framed the investment as a bet on a "structural shift" rather than a spending spike. The company employs about 1,600 people and targets roughly EUR 700 million in 2026 revenue, more than double 2025.
Europe's Defense Tech Gold Rush
Defense-tech startups have absorbed a record $17.4 billion in 2026 to date, according to Dealroom data cited by CNBC, already blowing past the $11.2 billion invested in all of 2025. The Quantum Systems round follows Helsing's CA-1EA electronic-attack drone reveal, KNDS's Tytan launcher and Stark's EUR 500M round led by Sequoia and Founders Fund. Related coverage on The Robotics Media: CACI SkyValor Border Drone Production.
Reporting based on coverage from CNBC, Tech Startups and Quantum Systems.