About Alice & Bob
Alice & Bob develops superconducting quantum computers built around cat qubits. A cat qubit is a quantum bit engineered to strongly suppress one of the two main error types, bit flips, which should reduce the number of physical qubits needed for error correction compared with conventional designs. The name comes from Schrödinger's cat thought experiment. The company was founded in 2020 by Théau Peronnin and Raphaël Lescanne, and is based in Paris with a presence in Boston.
Alice & Bob was founded in 2020 and is based in Paris, France. It is listed under Quantum Computing. Reported funding is €130M Series B extension (Apr 2026, Nvidia NVentures May 2026); cumulative €230M+.
Compute Technologies
- Quantum Computing
What Alice & Bob works on
Quantum Computing
A quantum computer is a machine that uses the rules of quantum physics to process information. Its basic unit is the qubit. A classical bit is either 0 or 1. A qubit can be in a superposition, a state that combines both, and its measured result is probabilistic.
