Quantum Systems raises $1.2 billion Series D at about $8 billion post-money valuation

According to CNBC, autonomous defense startup Quantum Systems said it raised $1.2 billion in a Series D funding round, valuing the company at around $8 billion on a post-money basis. The round was co-led by Blackstone, Noteus, Airbus and Advent, with participation from Bond, Fidelity Management and Research Company, Balderton and HV Capital. The company said it will use the new capital to expand production capacity, bolster supply chain resilience, scale deliveries across allied markets, and continue investing in software and AI capabilities; co-CEO and co-founder Florian Seibel also said the company is profitable. Quantum Systems said its systems, deployed in Ukraine, carried out more than 19,000 missions in 2025, and that it has expanded production across Germany, Ukraine, the United States, Australia, Romania, the United Kingdom and the Baltics.