Jooxter, an innovative French start-up, is addressing a major issue of many office buildings - the under-utilisation of spaces, the best examples being meeting rooms always booked on schedules but too often empty. Jooxter provides an open platform and advanced micro-localization technology (Bluetooth Low Energy, NFC) to make more effective use of spaces. With their devices “Jooxter Connect”, Jooxter makes the building fully informed of occupants movements and provides real times services to occupants.The data gathered enables to improve workplace efficiency : For instance, the scheduled optimization of meetings rooms, the analytics around occupancy and the tracking of activities. Acting as presence detector and proximity sensor, Jooxter devices brings great features, such as finding nearest available meeting rooms or hotdesks, locating colleagues, indoor positioning and many more to come.