Operating systems

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1,807 Operating systems notices found

Awarded contract
Wessex Learning Trust - Provision of Human Resources Information System
Wessex Learning TrustSupplier(s) Staff Absence Management LimitedGBP 1,000,000Awarded 17 December 2025Expiring 1 April 2029Time accounting or human resources software package
Awarded contract
Windows 11 Transition Support
Mining Remediation AuthoritySupplier(s) Howell Technology Group LimitedGBP 50,000Awarded 4 December 2025IT services: consulting, software development, Internet and support
Awarded contract
FW Services - Operational Technology Framework
Scottish Hydro Electric Power Distribution plc
Supplier(s)
15 suppliers
Accenture (UK) Limited
Amentum Clean Energy Ltd
ATOS IT SERVICES UK LIMITED
BrightSolid
British Telecommunications PLC
Cognizant Worldwide Limited
Faithful and Gould Ltd
HCL TECHNOLOGIES UK LIMITED
Jacobs U.K. Limited
NCC Group Security Services Limited
Prosource.it
SecureData (Europe) Limited
SWORD IT SOLUTIONS LIMITED
TATA Consultancy Services Ltd
Vysiion Ltd
3,600,000,000Awarded 19 December 2025Expiring 1 February 2029IT services: consulting, software development, Internet and support
Closed tenderPublished 16 December 2025
Supply of an Energy Dispersive Spectroscopy (EDS) detector for a Jeol 7800F FEG-SEM
Swansea UniversityClosing 14 January 2026Spectroscopy devices
Stale Pre-tenderPublished 12 December 2025
Pj HARMOS (AI Tooling for a Health Assessment and Risk Management Operational System)
Ministry of DefenceGBP 700,000Software programming and consultancy services
Awarded contract
Media and Creative Services
Crown Commercial Service
Supplier(s)
22 suppliers
23RED Ltd
ABBOTT MEAD VICKERS.BBDO LIMITED
Accenture (UK) Limited
ALLIED PUBLICITY SERVICES (MANCHESTER) LIMITED
Bray Leino Ltd,
DIGITAL UNLIMITED GROUP LTD
DRP UK Ltd
FCB Inferno
FCG WORLDWIDE LIMITED
Freud Communications Ltd
Havas UK Limited
IDENTITY EVENTS MANAGEMENT LIMITED
KINETIC WORLDWIDE LIMITED
LIVE GROUP HOLDINGS LTD
M&C Saatchi (UK) Ltd
Media Sense Communications Ltd
Mediaedge:cia UK Ltd
OMD Group Ltd
Strata Creative Communications Ltd
Tag Europe Limited
VCCP
WPP PLC
GBP 1,970,000,000Awarded 8 December 2025Expiring 14 January 2030Design support services
Closed tenderPublished 5 December 2025
Network - Onboard Wi-Fi, Mobile Connectivity and Station Wi-Fi
TRANSPENNINE TRAINS LIMITEDGBP 12,250,000Closing 16 January 2026Installation of telecommunications equipment
Awarded contract
Intention to Directly Award a Contract for Cloud-Based Maintenance, Scheduling, Compliance and Asset Management Software
Hyde Housing GroupSupplier(s) TotalMobile LtdGBP 5,500,000Awarded 5 December 2025Expiring 17 December 2030IT services: consulting, software development, Internet and support
Closed tenderPublished 29 November 2025
715727479 - Provision of Storage Filers hardware and technical support
Cambridge City Council, Huntingdonshire District Council, South Cambridgeshire District CouncilClosing 5 December 2025
Awarded contract
NCC1423- The Replacement of on Premises Hardware on which Oracle Software is Hosted
Northumberland County CouncilSupplier(s) CAE TECHNOLOGY HOLDINGS LIMITEDGBP 101,400.72Awarded 22 July 2025Expiring 21 July 2029Hardware installation services
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Stale Pre-tenderPublished 28 November 2025
RM6098 - Storage Filers
Ministry of DefenceGBP 750,000Data storage services
Awarded contract
Secure Cycle Parking ITT
Worcester City CouncilSupplier(s) BIKEDOK LTDGBP 32,580Awarded 28 November 2025Expiring 31 March 2029Software package and information systems
Closed tenderPublished 27 November 2025
Data Centre (DC) Managed Service
Guy's & St Thomas' NHS Foundation TrustClosing 23 December 2025
Awarded contract
Upgrade of Norplan shelving system
University of StrathclydeSupplier(s) Bruynzeel Storage SystemGBP 167,727Awarded 22 January 2026Library equipment
Stale Pre-tenderPublished 24 November 2025
Student Loans Company requirement for IBM Power and Storage
Student Loans CompanyGBP 2,500,000Closing 15 July 2025Data-processing machines (hardware)
Awarded contract
Central Line and Victoria Line - Cab Simulator Upgrades
Transport for LondonSupplier(s) Sydac LtdGBP 450,000Awarded 17 November 2025Expiring 11 January 2027Railway traffic control software package
Awarded contract
Enterprise-Grade Integrated Cyber Security Solution
West Suffolk NHS Foundation TrustSupplier(s) COMPUTACENTER (UK) LIMITEDGBP 395,406.17Awarded 26 September 2025Expiring 25 September 2027Security software package
Awarded contract
Red Hat Licences and Support
Genomics EnglandSupplier(s) Insight Direct (UK) LtdGBP 71,115.84Awarded 15 September 2025Software support services
Closed tenderPublished 11 November 2025
Community Pharmacy IT Pre-Qualification Questionnaire
NHS South, Central and West Commissioning Support Unit, NHS EnglandClosing 8 December 2025
Expired contract
ITSO Standards Update Contract - Cubic
Network RailSupplier(s) CUBIC TRANSPORTATION SYSTEMS LIMITEDGBP 2,189,427Awarded 4 November 2025Expiring 30 April 2026Railway equipment

Top buyers

Buyers ranked by total contract award volume for operating systems.

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BuyersCountValue

Ministry of Defence
112
£1.0bn
Driver and Vehicle Licensing Agency
53
£6.3m
Her Majesty’s Passport Office (HMPO)
33
£12.4m
Home Office
28
£209.3m
National Highways Limited
26
£2.4bn
HM Prison And Probation Service (HMPPS)
24
£0.0
Transport for London
20
£4.5bn
London Fire Brigade
19
£6.9m
Department for Transport (DFT)
19
£545.1m
HM Revenue & Customs (HMRC)
19
£228.4m

Trend over time

Notice volume for operating systems published over time.

Top suppliers

Suppliers ranked by total contract award volume for operating systems.

View all suppliers

SuppliersCountValue

Softcat PLC
26
£14.5bn
Insight Direct (UK) Ltd
24
£14.4bn
XMA LIMITED
22
£14.8bn
Phoenix Software Limited
22
£13.3bn
Academia Ltd
16
£276.3m
Specialist Computer Centres PLC
15
£14.3bn
CDW Ltd
14
£14.5bn
COMPUTACENTER (UK) LIMITED
10
£1.3bn
BYTES SOFTWARE SERVICES LIMITED
10
£192.0m
Trustmarque Solutions Ltd
10
£1.4bn

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