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    ContractsOwner's Engineer for Small Modular Reactor Project
    Awarded contract

    Owner's Engineer for Small Modular Reactor Project

    Awarded
    £300m
    Published 29 Jun 2026

    Owner's Engineer providing 14-year independent technical assurance and oversight for UK Small Modular Reactor deployment, with a maximum contract value of £300 million.

    🇬🇧United Kingdom· EnglandPublished 29 Jun 2026· 3 months agoviaFind a Tender
    Awarded
    £300m
    Published 29 Jun 2026

    Decision brief

    4 fields
    • Contract value
      £300,000,000
      Pounds sterling
    • Closing date
      Not published
      No closing date published
    • Sector
      Energy & Utilities
      Browse related listings
    • Location
      🇬🇧United Kingdom
      England

    Suppliers

    2 suppliers
    • AC
      AMENTUM CLEAN ENERGY LIMITED
    Lead contractor
  1. CN
    CAVENDISH NUCLEAR
    Consortium partner
  2. Lifecycle

    Awarded

    Contract awarded. Originally published 3 months ago.

    29 June 2026
    Awarded — no open tender advertised

    Brief

    GBE-N seeks an Owner's Engineer (OE) to provide independent assurance and expert oversight for the UK's Small Modular Reactor (SMR) project. The OE will act as a trusted advisor to the Intelligent Customer and Intelligent Client, delivering competent resources across specification, oversight, audit, review, and strategic advice on design, scope, budget, risk, delivery, and contract compliance. The role includes serving as a subject matter expert providing independent technical and delivery Line of Defence 2 assurance on major design and build contracts. This is a strategic, long-term engagement with a maximum contract value of £300 million over an anticipated 14-year term (subject to final negotiation). The exact outturn value and service volumes cannot be precisely predicted due to the project's length, scope uncertainties, and progression through design stages and associated milestones. Contractors should be prepared for variability in work instruction timing and extent.

    Track record

    3 awards · 3 winners
    Open field

    No single supplier dominates the field.

    In engineering, GREAT BRITISH ENERGY NUCLEAR has awarded 3 contracts to 3 suppliers.

    Who wins here
    1. Jacobs U.K Ltd1× · 33%
    2. BAM NUTTALL LIMITED1× · 33%
    3. AMENTUM CLEAN ENERGY LIMITED1× · 33%

    Across engineering, the most active winners are AECOM LTD, WSP UK LIMITED, OVE ARUP PARTNERS 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-0505a0

    Your fit

    Could you win the next one?

    This went to AMENTUM CLEAN ENERGY LIMITED. Sonar reads GREAT BRITISH ENERGY NUCLEAR's work like this against your business — who holds it, and whether you could compete or partner next time.

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    GB
    Buyer
    GREAT BRITISH ENERGY NUCLEAR
    Sector
    Energy & Utilities