Quantum Systems today announced the signing of its $1.2 billion Series D financing round, valuing the company at ~ $8 billion on a post-money basis. The round was co-led by Blackstone, Noteus, Airbus and Advent, and supported by a high-calibre syndicate of crossover and long-term institutional investors including BOND, Fidelity Management & Research Company, Wellington Management, A.P. Moller Holding, and Elephant Lake Ventures, as well as existing shareholders such as Balderton and HV Capital.