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Tenfell
Awarded contract
Published 28 Jan 2026

MNO Migration Architecture and Engineering

Ministry of Defence · South West

Key facts

Contract value
£1,094,338
Awarded
30 Nov 2025
Contract starts
01 Dec 2025
Contract ends
31 Mar 2026
Procedure
Call-off from a framework agreement (framework)
Buyer type
Central government

Awarded to

SupplierValue
Rockstone Technologies Ltd£1,094,338

Description

The rollout and migration of the Official user base across the whole of Defence for Windows 11 has been delayed by circa 3 months while the team have investigated and resolved several technical and security issues impacting Win11 users. Contracts linked to the migration were pivoted to help resolve these issues, not that migration has restarted, EUS are having to re-align several contracts and deliverables against the new rollout schedule.

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