NVIDIA's NVentures adds Alice & Bob to its quantum portfolio

This article was published on May 22, 2026 The Paris-based cat-qubit company adds NVentures to a cap table already backed by FFC, AVP and Bpifrance, and deepens its CUDA-Q tie-up with Nvidia. Alice & Bob, the Paris- and Boston-based quantum hardware company building fault-tolerant machines on its proprietary cat-qubit architecture, has added NVentures, Nvidia’s venture arm, to its cap table in an extension of its €100m Series B. Financial terms of the new investment were not disclosed. The round was announced on Friday by the company. The original Series B closed in January 2025, led by Future French Champions, AXA Venture Partners and Bpifrance, and valued at €100m (about $104.9m at the time). It was one of the larger European quantum hardware rounds on record and the clearest signal to date that French sovereign capital, channelled through Bpifrance and the state-backed FFC vehicle, was prepared to underwrite a serious shot at fault tolerance from a domestic operator. The NVentures extension does not replace any of those backers; it bolts onto them. What Nvidia is buying is partly a strategic option and partly a software integration. Alice & Bob has spent the last year tying its