Defence startup Mistt raises £5m to build the ‘next GPS’ for autonomous systems and AI | Sifted

London-based defence startup Mistt has raised £5m to build a 4D data map intended to improve positioning accuracy for autonomous systems and AI world models. The company, spun out of Oxford’s Active Robotics Lab, says its technology targets a 2K resolution and aims to cut the cost of high-fidelity mapping. Mistt argues the market is constrained by a lack of accurate, real-time 3D mapping data rather than by sensor hardware, and positions its approach as a potential “next GPS” for machines. The startup is initially targeting defence applications, where GPS dependence is a vulnerability, before expanding into broader autonomy use cases. Watch for early defence pilot deployments and whether Mistt can demonstrate cost and accuracy advantages over existing mapping and positioning systems.