Milbank LLP advised Advent on its investment in Quantum Systems, a leading European deep-tech prime. Quantum Systems carried out a €1.2 billion Series D financing round, valuing the company at around $8 billion on a post-money basis, to accelerate the transition from individual uncrewed platforms to an interoperable family of systems. The financing round was co-led by Blackstone, Noteus, Airbus and Advent, and supported by a syndicate of crossover and long-term institutional investors.
German company Quantum Systems develops, produces and deploys interoperable unmanned systems that combine battle-proven and modular hardware, software and AI to deliver mission-critical capabilities across air, land, sea and adjacent domains.
Advent is a leading global private equity investor. With 17 offices across five continents, Advent oversees more than USD$94 billion in assets under management* and has made 451 investments across 45 countries.
The Milbank team that advised Advent on this transaction was led by partner Jan Häller (Corporate/M&A, Frankfurt) and included partner Moritz Lichtenegger (Antitrust, Munich), associates Jonathan Grumann, Philip Falk (both Frankfurt) and Rabea Regh (Munich, all Corporate/M&A) as well as transaction lawyer Aisha Strohal (Antitrust, Munich).
*Assets under management (AUM) as of March 31, 2026. AUM includes assets attributable to Advent advisory clients as well as employee and third-party co-investment vehicles.
