Unified Communication Tenders and Contracts in London

219 matching notices from public sector buyers in London, 2 published in the last 30 days.

Recent buyers include Home Office, Local Space and London Borough of Brent.

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219 results

Awarded contract, expiring 30 September 2029Published 21 October 2026
Teams Phone - Unified Communications
Home OfficeSupplier(s) British Telecommunications PLCIT services: consulting, software development, Internet and supportAwarded 1 October 2026
£23,400,000
Awarded contract, expiring in 12 monthsPublished 13 October 2026
Provision of Cloud-Based Telephony and Unified Communications Services
Local SpaceSupplier(s) RingCentral UK LtdTelephone and data transmission servicesAwarded 13 October 2026
£120,833
Open tender, closing in 3 weeksPublished 9 October 2026
Market Engagement for Extra Care Housing Schemes for Care and Support Services for Emma Haas, Watling Gardens and The Willows, Honeypot Lane
London Borough of BrentHealth services
£10,570,056
Stale Pre-tender, closed 28 October 2026Published 9 October 2026
Extra Care Housing Schemes for Care and Support Services for Emma Haas, Watling Gardens and The Willows, Honeypot Lane
London Borough of BrentSocial work and related services
£10,570,056
Awarded contract, expiring 25 July 2030Published 11 September 2026
Telephony Solutions
Office of Gas and Electricity Markets (Ofgem)Supplier(s) 8X8 UK LIMITEDIP telephone servicesAwarded 14 August 2026
£940,000
Awarded contract, expiring 25 July 2028Published 11 September 2026
2026-049 Telephony Solutions for D&S
Office of Gas and Electricity Markets (Ofgem)Supplier(s) 8X8 UK LIMITEDTelecommunications systemAwarded 14 August 2026
£940,000
Closed tender, closed 7 August 2026Published 7 July 2026
Procurement for Microsoft Teams Voice & Omnichannel Contact Centre Solution
Habinteg Housing AssociationTelecommunications services
£291,666.67
Stale Pre-tender, closed 5 June 2026Published 15 May 2026
Procurement for Microsoft Teams Voice & Omnichannel Contact Centre Solution
Habinteg Housing AssociationTelecommunications services
£291,666.67
Awarded contract, expiring 31 March 2029Published 27 April 2026
CA17694 - MAINT6762 - ROYAL FREE LONDON NHSFT - Mitel Networks unified comms system maintenance contract - 3 years - Maintenance support including core OSV monitoring - framework ref - RM6116
4 buyers
Moorfields Eye Hospital NHS Foundation Trust
North Middlesex University Hospital NHS Trust
Royal Free London NHS Foundation Trust
Whittington Health NHS Trust
Supplier(s) Mitel Networks LtdTelecommunications-infrastructure maintenance servicesAwarded 1 April 2026
£428,797.73
Awarded contract, expiring in 17 monthsPublished 10 April 2026
Avaya Support & Licences
London Ambulance Service NHS TrustSupplier(s) SABIO LtdRepair and maintenance services of line telephony and line telegraphy equipmentAwarded 1 April 2026
£834,533.2
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Awarded contract, expiring 31 January 2029Published 9 February 2026
GB-London: Mobile Telephony Provision
The Royal Parks LimitedSupplier(s) SCG CORPORATE LIMITEDMobile-telephone servicesAwarded 1 February 2026
£80,676
Awarded contract, expiring in 3 monthsPublished 16 January 2026
Unified Communications
The National ArchivesSupplier(s) Avoira LtdTelecommunications equipment and suppliesAwarded 22 February 2026
£41,328
Awarded contract, expiring 28 February 2029Published 8 January 2026
C0136 - Unified Comms (Teams Voice)
The National Lottery Community FundSupplier(s) SCG CORPORATE LIMITEDNetworking, Internet and intranet software packageAwarded 1 March 2026
£187,560
Expired contract, expired 31 March 2026Published 11 December 2025
LAS - Avaya Migration Professional Services
London Ambulance Service NHS TrustSupplier(s) SABIO LtdIT services: consulting, software development, Internet and supportAwarded 1 October 2025
£109,475
Closed tender, closed 9 January 2026Published 2 December 2025
LAS Avaya Aura & Avaya IPOffice Support & Maintenance
London Ambulance Service NHS Trust
Value not stated
Awarded contract, expiring 31 December 2028Published 1 December 2025
Microsoft Office 365 licences
Science Museum GroupSupplier(s) Microsoft LtdSoftware package and information systemsAwarded 1 December 2025
£951,000
Awarded contract, expiring 31 December 2028Published 1 December 2025
Microsoft Office 365 licenses
Science Museum GroupSoftware package and information systemsAwarded 1 December 2025
£951,000
Awarded contract, expiring 17 October 2028Published 15 October 2025
MS Teams Telephony
Advisory Conciliation and Arbitration Service (ACAS)Supplier(s) GAMMA NETWORK SOLUTIONS LIMITEDTelephone networkAwarded 18 October 2025
£145,304
Awarded contract, expiring 13 January 2029Published 31 July 2025
Microsoft Teams and Five9 Unified Communications Offering with associated Gamma SIP Trunks
Health and Care Professions CouncilSupplier(s) OPUS BUSINESS SYSTEMS LIMITEDCommunication software packageAwarded 25 July 2025
236,210
Awarded contract, expiring 31 March 2029Published 29 July 2025
RE23090_A Network & Telephony Services via CCS Network Services 3 (RM6116)
London Borough of EalingSupplier(s) British Telecommunications PLCTelephone networkAwarded 1 April 2026
£3,814,241

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