IQ Quantique is leading the development and commercialization of industry-grade quantum-safe crypto devices and of high-performance quantum sensing instruments. In this talk, I will review some of the recent developments and applications of IDQ's technologies. More precisely, I will first present IDQ's quantum random number generation chip and its integration in mobile phones. I will also review some of our latest progress on developing high-performance superconducting nanowire single-photon detectors (SNSPDs). Finally, I will present the use of SNSPDs in a few applications such as the integration and inspection of the optical fibre trains installed in the upcoming European Space Agency (ESA) Ariane 6 space launcher.