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    Post-Quantum

    Company · London

    Post-Quantum, the trading name of London's PQ Solutions, sells security software designed to withstand quantum attack, including identity protection, a hybrid post-quantum VPN and quantum-safe messaging, plus help with migrating systems. Two of its cryptographers, Cen Jung Tjhai and Martin Tomlinson, co-authored NTS-KEM, a code-based algorithm submitted to NIST's post-quantum competition that merged with Classic McEliece in March 2020; Classic McEliece reached NIST's fourth round and is being drafted as an ISO standard. The company also cites its authorship of RFC 9370, the IETF standard for multiple key exchanges in IKEv2.

    Founded in 2009, Post-Quantum is a company in London focused on quantum security and post quantum cryptography. No project in this directory lists it yet.

    Sources: Post-Quantum · Classic McEliece team | classic.mceliece.org · Classic McEliece Internet-Draft | IETF Datatracker · A survey on code-based cryptography | arXiv

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    Profile last checked 2 October 2026

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