Infleqtion has successfully deployed a 100-qubit quantum computing system at the National Quantum Computing Centre, marking a significant milestone in the UK's quantum computing landscape. This operational system, built using Infleqtion's Sqale neutral-atom platform, will enable researchers and industry partners to test and benchmark large-scale quantum applications. The system's deployment is part of the National Quantum Computing Centre's Quantum Computing Testbed Initiative, which aims to facilitate the development of quantum technologies. Infleqtion's achievement supports its aggressive roadmap, targeting over 30 logical qubits by 2026 and more than 100 logical qubits by 2028, as the company pushes toward fault-tolerant quantum computing1. This development matters to practitioners because it provides a critical platform for testing and validating quantum applications, ultimately driving the advancement of quantum computing capabilities.