David John Williams (born May 1969 in Wales) is the founder of quantum encryption company Arqit Limited.
[1] After initially going to market with a satellite hardware solution [1], Arqit announced in December 2023 that it had invented software, called Symmetric Key Agreement, which can provide quantum safe encryption with cloud delivered software, removing all need for hardware.
This was validated by a number of commercial agreements with companies like Fortinet {https://www.fortinet.com/content/dam/fortinet/assets/alliances/sb-fortinet-and-arqit-vpn-integration.pdf }, Juniper [2], Detasad [3] and the World's fourth largest Tier 1 telco TI Sparkle [4].
[2] Williams was co-founder of Avanti Communications Group plc, the United Kingdom's first start-up operator,[3] listed on the London Stock Exchange.
Avanti was the first company to operate a High Throughput Satellite in EMEA and notably won the contract to build the backhaul system for the British Government's homeland security "Emergency Services Network".