Arqit Quantum Inc.

Arqit Quantum Inc. is a UK-based cybersecurity company that specializes in quantum-safe encryption. Founded in 2017 and headquartered in London, United Kingdom, its core mission is to secure the communication links of any networked device or data against current and future cyber threats, including those posed by quantum computers.

The company's primary offering is the SKA-Platform™ (Symmetric Key Agreement Platform), which delivers quantum-safe symmetric key agreement technology. This platform is available as a Platform-as-a-Service (Arqit SKA(PaaS)™) or as a sovereign private instance (Arqit SKA(PI)™), enabling devices to create computationally secure encryption keys using a lightweight software agent. Arqit also offers QuantumCloud™, NetworkSecure™, Encryption Intelligence, TradeSecure, and WalletSecure, targeting market segments such as telecommunications, defense, national security, finance, IoT, and government.

Andy Leaver assumed the role of Chief Executive Officer in September 2024, succeeding co-founder David Williams, who remains Chairman. Arqit has recently expanded its market presence through collaborations, including a partnership with Tomorrow Street (a Vodafone joint venture) in April 2026 to integrate quantum security solutions, and a collaboration with RAD in March 2026 for quantum-safe encryption in telco networks. The company also launched its Encryption Intelligence service in January 2026, designed to help organizations identify and mitigate network risks. Arqit is recognized for its pioneering work in quantum encryption and has received multiple industry awards.