London, UK – October 08, 2026 -- Arqit Quantum Inc. a global leader in quantum-safe encryption, announces select preliminary financial results for the second half and full fiscal year 2026.

Based on preliminary unaudited results, management expects revenue for the second half period ended 30 September 2026 of approximately $325,000 to $375,000. For the full fiscal year ended 30 September 2026, revenue is expected to be $975,000 to $1,000,000. Cash and cash equivalents were approximately $51 million as of 30 September 2026.

Revenue for the second half period ended 30 September 2026 was down as compared to revenue of $463,000 for the same period in fiscal year 2025. Revenue for the full fiscal ended 30 September 2026 compares favourably to revenue of $530,000 for fiscal year 2025.

Growth in revenue for fiscal year 2026 versus fiscal year 2025 resulted from but was not limited to:

• Revenue recognition associated with delivery under contracts signed prior to the commencement of the period; and
• Revenue recognition associated with 7 new contracts signed in the period.
• Revenue for the second half of fiscal year 2026 was adversely affected by cessation of revenue recognition under a material contract with a customer in the Middle East. The customer’s ability to fulfill its contractual obligations has been impacted by, but not limited to, geopolitical events in the region.
• Arqit signed 3 contracts in the second half of the fiscal period for Encryption Intelligence, Arqit’s automated cryptographic inventory solution, which enables continuous discovery and risk prioritisation to help governments and enterprises plan and execute migration to post-quantum cryptography. Revenue recognition under the contracts either began late in the second half of the fiscal period or will commence in the first quarter of fiscal year 2027. Encryption Intelligence launched commercialization earlier this year. The company believes Encryption Intelligence will be an important driver of customer engagement in fiscal year 2027.
• Renewed and or expanded two contracts in the second half of the fiscal year 2026.
• On 6 October 2026, following the end of fiscal year 2026, Arqit signed a contract as part of a winning bidding consortium to provide secure networking services to NATO. Services will be delivered as a 1 year contract with 2 annual renewal options.

Recognition of revenue under existing contracts is subject to a number of factors including, amongst others, the successful delivery of our products under the terms of those contracts, and the assumption that customers will not cancel, delay or amend the terms their contracts.