Arqit is a quantum encryption technology company that has developed QuantumCloud, a unique software-only approach to creating quantum-safe encryption keys without requiring quantum hardware. Founded in 2017 by David Williams, the company went public in 2021 and provides quantum-safe encryption solutions to governments, enterprises, and telecommunications providers worldwide. Arqit’s technology creates encryption keys in satellite networks and distributes them globally, offering quantum-safe security that is impossible to predict, intercept, or decode. The company’s approach addresses the critical cybersecurity challenge posed by quantum computers, which threaten to break current encryption methods. Arqit has secured contracts with organizations including the UK Space Agency, European Space Agency, and various government departments, as well as partnerships with telecommunications companies and satellite operators. Their Federated Quantum System enables secure communications across ground, satellite, and space-based networks, positioning Arqit as a leader in quantum-safe security solutions for critical infrastructure and sensitive communications.
David Williams (Chairman, CEO), Nick Pointon (Co-founder, CTO)
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Public
ARQQ
$470M
$420M (September 2025)
2 funding rounds tracked. View detailed investment history →
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