Peter J. Duffett-Smith

Focal Point Positioning Ltd. provides information technology services. It offers S-GPS, a smartphone-based sensor fusion, machine learning, and signal processing suite that provides satellite positioning capabilities in areas that have until now been unreachable. This technology dramatically improves the sensitivity and performance of existing radio-based positioning systems, providing new capabilities and services in urban environments and deep indoors. The firm also provides D-Tail, a state-of-the-art 3D human motion tracking engine that can utilise smartphone grade IMUs to provide trajectory reconstruction. The company was founded by Ramsey Faragher in 2015 and is headquartered in Cambridge, the United Kingdom.

Cambridge Positioning Systems Ltd. makes a high accuracy location enabler for wireless devices. It licenses its Matrix technology to global vendors for integration into their network infrastructure products. Customers include Hewlett-Packard, LogicaCMG, Nokia and Samsung. CPS was founded by chief scientific officer Dr. Peter Duffett-Smith, who developed the technology while working as a radio astronomer at the University of Cambridge. Cambridge Positioning Systems is located in Cambridge, UK.