Securing networks today. Building the trustless network of tomorrow.

Quantasphere was founded in 2025 and operates in the United Kingdom and the Kingdom of Saudi Arabia. We build post-quantum security products for critical-infrastructure operators: hospitals, grid operators, banks, defense and government networks. Our products deploy onto existing networks eliminating the need for costly infrastructure upgrades, ensuring that there is minimum disruption to business activity.

One constraint shapes everything we make: our products are built so that we cannot read our customers' traffic, even if our own systems are compromised. Keys live only in customer hardware greatly securing communication systems.