Davide Calonico is the Scientific Director of INRIM, Istituto Nazionale di Ricerca Metrologica, physicist expert in primary metrology and quantum technologies. Its main scientific achievements are in atomic clocks (Cs and Rb fountians, Yb and Sr optical clocks), sensing and quantum communication over fiber. DC coordinates the Italian Quantum backbone, that enables the dissemination of primary frequency metrology via coherent laser techniques and the IEEE 1588 High Accuracy standard, connecting Italy from South to North and then to Europe (France, Germany, UK). IQB also realizes in Italy the European Quantum Communication Infrastructure of the European Commission. He is the scientific responsible for INRIM of the infrastructure Piquet, Piemonte Quantum Enabling Technology, devoted in INRIM to metrology on a chip.