QuSecure, Inc.

QuSecure, Inc. describes itself as a security company focused on crypto-agility for critical systems. Its website says its software discovers cryptography in use across networks, upgrades connections to NIST post-quantum algorithms by policy, and does so at the network layer without requiring application code changes or system rebuilds.

The company says it was founded in 2019 and has worked with U.S. government and commercial enterprises on cryptographic security deployments. Its main named product is QuProtect R3, which the company says supports ML-KEM and ML-DSA in TLS, including hybrid and pure post-quantum key exchange, certificate management, reporting, and CycloneDX cryptographic bill of materials generation. QuSecure positions this offering for environments including on-premises, air-gapped, and cloud systems, with cited use cases in defense, banking, telecom, and industrial control settings.