Arqit Quantum Inc

Arqit Quantum Inc. (Nasdaq: ARQQ, ARQQW) is a cybersecurity company that develops and provides quantum-safe encryption software for governments and enterprises. The company's products are designed to secure data against the emerging threat posed by quantum computing to current cryptographic standards. Arqit's primary product offerings include Encryption Intelligence, an automated cryptographic inventory solution that enables continuous discovery and risk prioritization for post-quantum cryptography (PQC) migration planning, and NetworkSecure™, which protects data in transit with post-quantum cryptography and supports confidential compute environments for data sovereignty. The company operates a 'Detect, Protect, Comply' solution framework and serves key markets including telecommunications, government, defence, and enterprise organizations. Arqit's software-based solutions integrate with existing infrastructure without requiring hardware changes and are designed to be cryptographically agile. The company collaborates with technology partners including Intel, 6WIND, and RAD, and its solutions are deployed across use cases such as secure VPNs, data center interconnect, secure command of unmanned platforms, and quantum-secure data computation. Arqit is a Cayman Islands exempted company listed on Nasdaq. Updated May 21, 2026