Quantum Materials Corp. (fka QTMM)

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according to wikipedia
Commercial
There are currently four companies offering commercial quantum key distribution systems; ID Quantique (Geneva), MagiQ Technologies, Inc. (New York), QuintessenceLabs (Australia) and SeQureNet (Paris). Several other companies also have active research programs, including Toshiba, HP, IBM, Mitsubishi, NEC and NTT (See External links for direct research links).

In 2004, the world's first bank transfer using quantum key distribution was carried out in Vienna, Austria.[28] Quantum encryption technology provided by the Swiss company Id Quantique was used in the Swiss canton (state) of Geneva to transmit ballot results to the capital in the national election occurring on 21 October 2007.[29] In 2013, Battelle Memorial Institute installed a QKD system built by ID Quantique between their main campus in Columbus, Ohio and their manufacturing facility in nearby Dublin.[30] Field tests of Tokyo QKD network have been underway for some time.[31]