ID Quantique (IDQ) is a Swiss company, based in Geneva, Switzerland, and provides quantum key distribution (QKD) systems, quantum safe network encryption, single photon counters, and hardware random number generators.

It was founded in 2001 as a spin-off of the Group of Applied Physics at the University of Geneva.

The company is structured in three business units: The Quantum Safe Cryptography division focuses on data protection and provides: The Photon Counting division works on optical instrumentation products such as: The company's work in Random Number Generation focuses on developing hardware random number generators based on quantum randomness, for cryptographic and security applications (quantum key generation) and research purposes (MonteCarlo simulations).

The company has realized several world premieres in quantum technology innovation.