Arqit SKA-Platform vs WISeKey: Side-by-Side Comparison (2026)

Arqit SKA-Platform: Quantum-safe key agreement platform for securing comms across endpoints. built by Arqit. Core capabilities include Dynamic quantum-safe encryption key generation at endpoints via lightweight software agents, Over-the-Air (OTA) bootstrap key delivery using NIST ML-KEM post-quantum algorithms, Mutual authentication with per-session key rotation for perfect forward secrecy..

WISeKey: PKI & digital identity platform with hardware RoT, IoT security, and quantum resilience. built by WISeKey. Core capabilities include Swiss-based cryptographic Root of Trust (RoT) for authentication and identification, PKI technology and trust services for digital identity management, WISeID identity platform for strong authentication and mobile security..

Both serve the Quantum Security market but differ in approach, feature depth, and target audience.

Arqit SKA-Platform differentiates with Dynamic quantum-safe encryption key generation at endpoints via lightweight software agents, Over-the-Air (OTA) bootstrap key delivery using NIST ML-KEM post-quantum algorithms, Mutual authentication with per-session key rotation for perfect forward secrecy. WISeKey differentiates with Swiss-based cryptographic Root of Trust (RoT) for authentication and identification, PKI technology and trust services for digital identity management, WISeID identity platform for strong authentication and mobile security.

Arqit SKA-Platform is developed by Arqit. WISeKey is developed by WISeKey. Vendor maturity, funding stage, and team size can be important factors when evaluating long-term viability and support quality.

Arqit SKA-Platform and WISeKey serve similar Quantum Security use cases: both are Quantum Security tools, both cover Quantum Safe. Review the feature comparison above to determine which fits your requirements.