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    ContractsApplication Management Services for the Radiological Response and Emergency Management System
    Open tender

    Application Management Services for the Radiological Response and Emergency Management System

    Contract value
    £27.7m
    Published 2 Nov 2026

    Provide application management services for the UK's radiological monitoring and emergency response system.

    🇬🇧United Kingdom· LondonPublished 2 Nov 2026· TodayviaFind a Tender
    Contract value
    £27.7m
    Published 2 Nov 2026

    Decision brief

    4 fields
    • Contract value
      £27,700,000indicative
      Pounds sterling
    • Closing date
      Rolling
      No closing date published
    • Sector
      IT & Software
      Browse related listings
    • Location
      🇬🇧United Kingdom
      London

    Lifecycle

    Open

    Open tender — no closing date published. Opened today.

    2 November 2026
    Open tender · no closing date published

    Brief

    The Radiological Response and Emergency Management System (RREMS) is a UK government system that monitors and analyses radioactivity levels across the United Kingdom. Managed by the Department for Energy, Security and Net Zero (DESNZ), RREMS provides critical infrastructure for civil nuclear emergency response, replacing the previous Radioactive Incident Monitoring Network (RIMNET). The Ministry of Defence (MOD) uses related emergency response systems for defence nuclear incidents, previously operating the Nuclear Emergency Response Information Management System (NERIMS). This opportunity seeks qualified suppliers to provide comprehensive application management services to support the operation, maintenance, and continuous improvement of RREMS and related radiological monitoring systems. Successful applicants will support government departments in maintaining national preparedness for radiological emergencies and ensuring accurate, real-time monitoring of radiation levels across the UK.

    Track record

    4 awards · 4 winners
    Open field

    No single supplier dominates the field.

    In it software, Department for Energy Security & Net Zero has awarded 4 contracts to 4 suppliers.

    Who wins here
    1. TPX Impact Limited1× · 25%
    2. Xoserve Limited1× · 25%
    3. Stat-Edgy LLP1× · 25%
    4. Version 1 Solutions Ltd1× · 25%

    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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    DESNZ requires a 12-month subscription to an AI-powered horizon-scanning platform providing geopolitical analysis, forecasts, and critical infrastructure monitoring to enhance energy sector situational awareness.

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    Oxford Economics Subscription Service

    DESNZ seeks a 12-month Oxford Economics subscription for economic analysis and policy advice on energy security and net zero initiatives.

    £94,995Department for Energy Security & Net Zero
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    Take action
    View tender on sourceFind a Tender

    Full notice and submission process on the publisher's site

    Publisher
    UK Cabinet Office
    Licence
    OGL v3.0
    Source
    find-tender.service.gov.uk
    Record ID
    ocds-h6vhtk-069f35

    Track

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    Your fit

    Could you win this?

    A straight answer for your business — bid, partner or pass — based on who wins Department for Energy Security & Net Zero's work like this.

    4 awards · 4 firms

    Check my fit

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    DF
    Buyer
    Department for Energy Security & Net Zero
    Sector
    IT & Software