Soitec

Pasqal builds neutral-atom quantum processors using arrays of individually trapped rubidium atoms, offering both analog and digital modes of quantum computing. With over 1,000 atoms in its latest systems, Pasqal operates one of the largest neutral-atom processors worldwide. Spun out of Institut d'Optique and founded by quantum physics pioneers including Nobel laureate Alain Aspect's research group. Pasqal acquired Qu&Co (quantum software) in 2022 and has partnerships with NVIDIA (CUDA-Q), Crédit Agricole, and several European HPC centers.

Quandela builds photonic quantum computers based on single-photon sources, offering its MosaiQ platform for cloud and on-premises access. The company spun out of the Centre for Nanoscience and Nanotechnology (C2N) in Paris and has developed what it claims are the world's best single-photon sources in terms of brightness and indistinguishability. Quandela is part of the NVIDIA CUDA-Q partner ecosystem and focuses on near-term applications in optimization and quantum simulation.

Alice & Bob develops cat qubits — a type of superconducting qubit that autonomously corrects bit-flip errors, dramatically simplifying the path to fault tolerance. In 2024, the company demonstrated a bit-flip lifetime exceeding 7 minutes for a single qubit on its Boson 4 chip, a record for superconducting systems. The Boson 4 is available on Google Cloud Marketplace. In January 2025, Alice & Bob closed a €100M Series B led by Future French Champions (FFC), AXA Venture Partners, and Bpifrance, with participation from the Qatar Investment Authority (QIA). Alice & Bob also released Dynamiqs (open-source quantum simulation with NVIDIA GPU acceleration) and Felis (a logical qubit emulator built on Qiskit).

Quantum Machines develops the OPX+ pulse processor — a purpose-built classical processor for real-time quantum control that handles the precise pulse sequences needed to manipulate qubits. The company's Quantum Orchestration Platform provides low-latency feedback loops essential for error correction. Quantum Machines works across all qubit modalities and has partnerships with major quantum computing labs worldwide. It is part of NVIDIA's NVQLink ecosystem for GPU-QPU integration.