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BidSonar is an independent index of public-sector opportunities. We aggregate data from official sources and are not affiliated with any procurement body. Data is licensed under the Open Government Licence v3.0 and the EU TED reuse notice.

    ContractsLegacy Data Warehouse Migration and Decommissioning
    Awarded contract

    Legacy Data Warehouse Migration and Decommissioning

    Awarded
    £200m
    Published 26 Aug 2026

    Migrate and decommission HMRC's legacy data warehouses while coordinating with multiple suppliers to transition services and users to the new DWIT architecture with minimal disruption.

    🇬🇧United KingdomPublished 26 Aug 2026· 4 weeks agoviaContracts Finder
    Awarded
    £200m
    Published 26 Aug 2026

    Decision brief

    4 fields
    • Contract value
      £200,000,000
      Pounds sterling
    • Tender closed
      20 Mar 2026
      6 months ago
    • Sector
      IT & Software
      Browse related listings
    • Location
      🇬🇧United Kingdom

    Suppliers

    1 supplier
    • CU
      CAPGEMINI UK PLC
    Lead contractor

    Lifecycle

    Awarded

    Contract awarded. Originally published 4 weeks ago.

    26 Aug 2026Today20 Mar 2026

    Brief

    This opportunity involves migrating and decommissioning HMRC's legacy data warehouses to transition to the future DWIT (Data Warehouse IT) architecture. The successful supplier will work collaboratively with the Service Integrator, Lakehouse, and Feed Factory suppliers to ensure safe data transfer, minimize service disruption, and smoothly transition users to the new system. Key responsibilities include managing the technical migration process, coordinating with multiple stakeholders, ensuring data integrity throughout the transition, and supporting users during the changeover period. This is a critical project requiring expertise in data warehouse management, migration planning, and stakeholder coordination to achieve a successful transition with minimal business impact.

    Track record

    43 awards · 29 winners
    Open field

    No single supplier dominates the field.

    In it software, H M REVENUE CUSTOMS has awarded 43 contracts to 29 suppliers.

    Who wins here
    1. CAPGEMINI UK PLC6× · 14%
    2. IBM UNITED KINGDOM LIMITED4× · 9%
    3. SYNYEGA LIMITED2× · 5%
    4. XMA LIMITED2× · 5%
    5. Equal Experts2× · 5%
    6. ORACLE CORPORATION UK LIMITED2× · 5%

    +23 more suppliers

    Across it software, the most active winners are SOFTCAT PLC, PHOENIX SOFTWARE LTD, INSIGHT DIRECT UK LIMITED — the field to beat, or your route in as a partner.

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    Take action
    View on sourceContracts Finder

    Award notice and full record on the publisher's site

    Publisher
    UK Cabinet Office
    Licence
    OGL v3.0
    Source
    contractsfinder.service.gov.uk
    Record ID
    d00dd315-93de-41fd-a291-de711df75ef0-912155
    HM
    Buyer
    H M REVENUE CUSTOMS
    Sector
    IT & Software