Alice & Bob is a quantum computing company founded in 2020, with offices in Paris and Boston. The firm is focused on building the first universal, fault-tolerant quantum computer, targeting applications in drug discovery, molecular simulation, cryptography, and optimization problems. Its team of over 140 employees represents more than 20 nationalities.
The company has developed a novel superconducting qubit known as the cat qubit, which implements quantum error correction autonomously. According to Alice & Bob, this approach could reduce the qubit count required for fault-tolerant quantum computing by up to 200x compared to competing technologies, leveraging research in Bosonic codes and self-correcting superconducting quantum processors.
Alice & Bob has secured €130 million in funding and published a detailed roadmap outlining five key milestones toward delivering a universal, fault-tolerant quantum computer by 2030. The company positions itself alongside major technology firms such as Google and IBM in the race toward practical quantum computing.






