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Nu Quantum builds photonic hardware that links quantum computers together into larger, networked machines.
Nu Quantum is a British hardware company building the networking layer for quantum computers. Its products are optical devices that connect separate quantum processors — the chips that do the actual quantum computing — so they can work together as one bigger machine. The customers are developers and researchers who need more computing power than any single quantum processor can deliver.
The core problem is simple to state and hard to solve. Today's quantum processors are small and error-prone, and cramming more qubits onto one chip gets exponentially harder. Nu Quantum's bet is that you don't need one giant chip: you link many smaller processors with photonic connections, using particles of light to carry quantum information between them. Done well, this turns a handful of modest machines into a distributed quantum computer, the same way ordinary computers are stitched into data centers. The company was spun out of the University of Cambridge's Cavendish Laboratory in 2018, founded by Carmen Palacios-Berraquero, who serves as chief executive. It is a private, venture-backed startup, so it does not sell shares on any exchange and does not publish revenue figures. Its money comes from investors, not from shipping products at scale yet.
Nu Quantum sits in a crowded research race with other quantum networking players, and the whole field is still early — commercial payoffs are years away by most accounts. That makes it a deep-tech bet: the technology is genuinely difficult, the market is unproven, and the company's fate depends on whether quantum computers become useful enough that connecting them matters. For now, its work is promise and plumbing rather than profits.
Saved answer · last researched 15 Nov 2026