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    BT Group

    Company · London

    BT's quantum work is about securing and eventually linking networks, using quantum key distribution (QKD) on its own fibre. With Toshiba supplying the QKD hardware, it began commercial trials of quantum-secured fibre links across London in April 2022, building on work at its Adastral Park labs in Suffolk, with EY as the first customer; Equinix's Slough and Canary Wharf sites joined in September 2024. BT led the Innovate UK-funded AIRQKD and QAssure consortia, the latter worth £2 million and running to March 2026, and is a partner in the Integrated Quantum Networks hub.

    BT Group, based in London, is a company whose work covers quantum communications, networking and qkd; it was founded in 1846. It leads 3 UK projects (London Quantum-Secured Metro Network, QAssure and AIRQKD) and is a partner in 13 more.

    Sources: BT and Toshiba launch first commercial trial of quantum secured communication services (BT, April 2022) · Access to quantum-secure communications made easier for businesses (BT, September 2024) · QAssure (UKRI Gateway to Research) · Integrated Quantum Networks hub (UKRI Gateway to Research)

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    Profile last checked 2 October 2026

    Projects (16)

    Leads (3)

    • Active Collaboration · 2022 onwards

      London Quantum-Secured Metro Network

      A commercial trial of a quantum-secured fibre network in London, run by BT with quantum key distribution equipment from Toshiba.

      Role: Lead

      Themes: Communications, Networks

    • Completed Consortium · 2024 to 2026

      QAssure

      A BT-led consortium developing ways to assure the security and reliability of quantum key distribution systems.

      Role: Lead

      Themes: Communications, Networks

    • Completed Consortium · 2020 to 2023

      AIRQKD

      A BT-led consortium testing free-space quantum key distribution for short and mid-range links, including 5G and connected vehicles.

      Role: Lead

      Themes: Communications, Networks

    Partner in (13)

    In the news

    Recent articles from Quantum Zeitgeist that mention BT Group.

    • The definitive guide to the UK's most significant quantum technology companies, from Oxford hardware spinouts to Cambridge error correction pioneers.

      · UK

      UK Quantum Computing Companies 2026, read on Quantum Zeitgeist

      UK quantum computing companies: Quantinuum’s Nasdaq listing, OQC’s 260 million pound round, Oxford Ionics under IonQ, Riverlane, Quantum Motion and the rest of the British stack.

      Image © Quantum Zeitgeist

    • Quantum Computing Companies In 2026

      Quantum Computing Companies In 2026, read on Quantum Zeitgeist

      A 2026 directory of 170 quantum computing companies across hardware, software, security, sensing, components and investment, with funding, leadership and technology for each. It spans superconducting, trapped-ion, neutral-atom, photonic and silicon-spin approaches, plus notable market exits.

      Image © Quantum Zeitgeist

    • Genius Project with 30+ Partners Advances Generative AI Integration across the Software Development Life Cycle

      GENIUS Project: AI in Software Development, read on Quantum Zeitgeist

      A large European collaboration, the GENIUS project, investigates how to reliably and securely integrate generative AI throughout the entire software development process, anticipating necessary skill shifts and developing practical tools to realise this transformation over the next five years.

      Image © Quantum Zeitgeist

    • 10 Quantum Companies to Watch in 2024

      10 Innovative Quantum Companies to Watch in 2024, read on Quantum Zeitgeist

      In 2024, the quantum computing landscape is set for transformative breakthroughs, with companies pushing the boundaries of quantum mechanics. This feature highlights 10 quantum companies, examining their advancements, visionary leadership, and potential global impact.

      Image © Quantum Zeitgeist

    All 7 articles mentioning BT Group

    Partnerships (7)

    Research, commercial and investment relationships, by year. Partners with a profile here are linked.

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    Company data from Entangled Future. News from Quantum Zeitgeist. Last checked 2 October 2026.

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