Nu Quantum has closed its oversubscribed £45 million Series A funding round led by National Grid Partners, including participation from Gresham House Ventures and Morpheus Ventures, and continued support from existing investors Amadeus Capital Partners, IQ Capital, Ahren Capital, Cambridge Enterprise Ventures, East Innovate, NSSIF, and Sumitomo (Presidio Ventures).
It is the largest financing round ever raised by a pure-play quantum networking company, and the largest quantum Series A in the UK to date. The funding will accelerate Nu Quantum’s mission to reach fault tolerance by interconnecting quantum processors into a more powerful distributed quantum computer, unlocking the projected $1 trillion quantum computing market.
Quantum computers have the potential to solve problems that will always be beyond the reach of any classical supercomputer. Applications could include modelling molecules on an atomic level to simulation and optimisation of systems with millions of interdependent parameters, like electric grids or financial markets. Until now, the quantum computing industry has focused on improving individual quantum processors, but achieving real utility and fault tolerance will require scaling to systems with 1,000x more qubits than exist today.
Nu Quantum’s quantum networking stack presents an alternative approach by enabling quantum computers to scale through connecting individual processors into a modular, distributed computing fabric. Networking has played a critical role in the classical computing industry, enabling Cloud and AI data centres and High Performance Computing. Nu Quantum’s belief is that the mass commercialisation of quantum computing will happen via distributed architectures in quantum datacenters, underpinned by its networking infrastructure - the Entanglement Fabric. Its architecture is adaptable to support scaling for multiple different qubit modalities.
Quantum computers rely on qubits and high-quality entanglement between them to run powerful computations. To move beyond isolated processors, entanglement links must be created between qubits in adjacent processors via photonic quantum networking. Achieving this with high fidelity and high rate is today the single biggest technical challenge preventing the modular scaling of quantum computers, communication and sensor networks. Nu Quantum’s modular, interoperable networking layer - the Entanglement Fabric - will provide the architecture and connectivity at the rates necessary for distributed, fault-tolerant computing.
The funding will support the next phase of Nu Quantum’s product development and deployment. The company plans to build on its quantum networking subsystems, the Qubit-Photon Interface developed in 2024 and the Quantum Networking Unit planned for 2025. Its system architecture will draw on its work on Distributed Quantum Error Correction.
The funding will also support Nu Quantum’s international expansion, including the growth of its presence in Europe and the US. Following the opening of its Los Angeles office in 2024, the company has built a strong US-based Strategic Advisory Board, including Dr. Robert Sutor, formerly of IBM, Roland Acra, former CTO of Cisco System, and Richard Moulds, former Head of Amazon Braket. Nu Quantum will continue to bring together the ecosystem under the Quantum Datacenter Alliance and work with Quantum Processing Unit partners to advance network-processor integration.
