Toshiba Secures UK Contract to Advance Commercial Quantum Networking with BT and Colt

The Tech TL;DR:
• Toshiba Europe secured an Innovate UK contract announced on November 6, 2026, to scale quantum networking technology over existing fiber infrastructure.
• Network operators BT and Colt Technology Services joined the 18-month project to validate prototype subsystems under realistic operating conditions.
• The initiative runs from September 1, 2026, to February 28, 2028, supporting the UK National Quantum Strategy goal of deploying advanced quantum networks by 2035.

Quantum networking infrastructure requires significant capital expenditure, making affordability a primary hurdle for telecommunications providers attempting to scale operations over existing fiber networks rather than laying new cables.

TechRepublic reported that Toshiba Europe secured a new government contract on November 6, 2026, to develop long-distance quantum networking technology designed to utilize buried fiber assets efficiently. The award came through the competition’s rules administered via Innovate UK’s Enabling Commercial Quantum Networking competition.

The initiative forms part of a combined £20 million investment in the UK quantum ecosystem. BT and Colt Technology Services joined the 18-month effort starting September 1, 2026, to validate prototype subsystems under realistic operating conditions. Toshiba Europe announced the award on November 6, 2026, setting a strict completion deadline of February 28, 2028, to advance quantum networking toward commercial adoption ahead of the broader national target to deploy advanced quantum networks by 2035.

The project covers quantum networking subsystems rather than a finished network architecture. Toshiba aims to extend the reach of long-distance quantum links while managing connectivity growth as user numbers and active sites expand. According to Toshiba’s announcement, the subsystems will utilize network resources more efficiently to improve asset utilization and reduce capital spending across standard telecom networks.

“Building quantum networks at scale requires cost-effective subsystems that can be readily integrated into today’s data communications infrastructure,” said Andrew Shields, vice president of Toshiba Europe and head of its Quantum Technology Division.

Both network operators have existing implementation experience with Toshiba hardware. In April 2022, BT supported a commercial trial of a quantum-secured metro network in London featuring EY as the initial customer. More recently in March 2025, Colt participated in a quantum-secured encryption trial across an optical network spanning a London-to-Frankfurt route, working alongside Adtran, Ciena, ID Quantique, and Nokia.

Those previous projects centered on quantum key distribution (QKD) to share encryption keys securely via quantum physics. The current Innovate UK contract extends beyond single-link QKD toward multi-user architectures and longer-term goals of linking quantum processors across separate data centers to perform collaborative computational tasks.

The project represents a supply-chain contract rather than a standalone network build, designed to place UK suppliers within the procurement pipelines of major system integrators and service providers.

Toshiba has not disclosed the exact financial value of its contract, which falls within the competition’s total project cost bounds of £1.5 million to £3 million including VAT. The definitive test for commercial viability remains whether network operators commit to deploying Toshiba’s validated subsystems after the February 2028 deadline concludes.

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