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    ContractsCambrian Rail Network Obsolescence Management and System Upgrade
    Awarded contract

    Cambrian Rail Network Obsolescence Management and System Upgrade

    Awarded
    £4.5m
    Published 9 Nov 2026

    Network Rail seeks suppliers to replace and upgrade obsolete control system hardware and software on the Cambrian railway network to improve safety, reliability, and long-term operability.

    🇬🇧United Kingdom· LondonPublished 9 Nov 2026· YesterdayviaFind a Tender
    Awarded
    £4.5m
    Published 9 Nov 2026

    Decision brief

    4 fields
    • Contract value
      £4,510,620
      Pounds sterling
    • Closing date
      Not published
      No closing date published
    • Sector
      Construction
      Browse related listings
    • Location
      🇬🇧United Kingdom
      London

    Suppliers

    1 supplier
    • CD
      COMPAGNIE DES SIGNAUX
    Lead contractor

    Lifecycle

    Awarded

    Contract awarded. Originally published yesterday.

    9 November 2026
    Awarded — no open tender advertised

    Brief

    Network Rail is seeking contractors to address obsolescence issues across the Cambrian European Train Control System (ETCS). The project involves replacing, upgrading, and modifying outdated hardware and software in critical railway control systems, including the Radio Block Centre (RBC), SILAM, SICAM, Ansaldo SEI interlocking systems, Llanbadarn LEU, RCCS, GEST systems, and MTOR object controllers. Successful contractors will deliver comprehensive services including system design, integration, testing, commissioning, staff training, technical documentation, spare parts provision, and ongoing support. This contract ensures the railway's continued safe operation, improves system reliability and maintainability, maintains compatibility with existing infrastructure, and mitigates both current and future obsolescence risks across the network.

    Track record

    7 awards · 7 winners
    Open field

    No single supplier dominates the field.

    In construction, NETWORK RAIL INFRASTRUCTURE LIMITED has awarded 7 contracts to 7 suppliers.

    Who wins here
    1. Transport for Wales1× · 14%
    2. Complete Paving Requirements (Scotland) Limited1× · 14%
    3. COMPAGNIE DES SIGNAUX1× · 14%
    4. Hitachi Energy UK Limited1× · 14%
    5. ATKINS REALIS UK LIMITED1× · 14%
    6. AMALGAMATED CONSTRUCTION LTD1× · 14%

    +1 more supplier

    Across construction, the most active winners are HOLCIM UK LIMITED, TARMAC TRADING LIMITED, LINDUM GROUP LIMITED — the field to beat, or your route in as a partner.

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    Take action
    View on sourceFind a Tender

    Award notice and full record on the publisher's site

    Publisher
    UK Cabinet Office
    Licence
    OGL v3.0
    Source
    find-tender.service.gov.uk
    Record ID
    ocds-h6vhtk-07b815

    Your fit

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    Buyer
    NETWORK RAIL INFRASTRUCTURE LIMITED
    Sector
    Construction