Arqit invests in Sirius to expand quantum-safe defense communications

ARQQ•2026-10-20

Arqit Quantum announced a strategic investment in Sirius Computer to fund development of its Crux platform, deeper encryption integration and new joint products for defense and government customers.

1. Investment and joint plans

Arqit Quantum said its strategic investment in Sirius Computer will fund Crux platform development, deeper encryption integration and new joint products. The companies plan to expand joint sales efforts across NATO members and allied nations, targeting UK and US defense departments.

2. NATO consortium

The companies are part of a winning consortium selected to provide secure networking services to NATO.

Arqit invests in Sirius to expand quantum-safe defense communications

1. Investment and joint plans

2. NATO consortium

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