In Service Support of Queen Elizabeth Class Integrated Navigation and Bridge Systems, and In Service Support for VM250 Radar, Astute Ships Inertial Navigation System, MK39 Gyroscope across Multiple Naval Platforms (QEC INBS).

Ministry of Defence
Direct award
1 April 2025 to 31 March 2035

Provision of core in-service support for Queen Elizabeth Class Integrated Navigation and Bridge Systems, VM250 Radar, Astute Ships Inertial Navigation System, and MK39 Gyroscope equipment. The scope includes safety management, spares provision, systems repairs, and ongoing technical support across multiple naval platforms to ensure operational readiness of legacy and current navigation equipment.

Open the official notice

Awarded value: £20.5m; As published
Published: 15 May 2025
Awarded: 1 April 2025; Northrop Grumman
Contract length: 120 months; Ends 31 March 2035

What the contract covers

Service contract

Provision of specialist in-service maintenance, technical support, and repair services for naval navigation, radar, and inertial guidance systems.

In-service core support of Queen Elizabeth Class Integrated Navigation and Bridge Systems equipment and legacy equipment
In-service core support of VM250 Radar equipment and legacy equipment
In-service core support of Astute Ships Inertial Navigation System equipment and legacy equipment
In-service core support of MK39 Gyroscope equipment and legacy equipment
Safety management, spares provision, systems repairs, supplementary support tasks and technical support for the supported equipment

Terms and requirements

Contract type: Service contract
Procedure: Direct award
Initial term: 120 months
Contract dates: 1 April 2025 to 31 March 2035
Certifications asked for: None stated
Suitable for SMEs: Not stated
Category: Services
CPV codes: 50640000

Services in this contract

Marine navigation equipment, charts and publicationsMain service£197k typicalIn-service support of naval integrated navigation and bridge systems, radar and gyroscopes

Lifecycle

Published
15 May 2025
Contract awardedto Northrop Grumman
1 April 2025
Contract starts
1 April 2025
Contract ends
31 March 2035

The buyer

Ministry of Defence

Type: Locked
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Recorded value: Locked
Typical contract: Locked
Nautical charts contracts, 24 months: Locked

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Contact details

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The supplier

Northrop Grumman

Contracts won, 24 months: Locked
Value won, 24 months: Locked
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Main buyers

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Cite this contract

Link: https://bidskim.com/tender/196268/in-service-support-of-queen-elizabeth-class-integrated-navigation-and-bridge-sys
Buyer reference: tender_401549/1480960
Open contracting ID: ocds-b5fd17-9dc9aba8-f1ce-410e-8343-46151d18c3bc
Last checked: 5 November 2026

Ministry of Defence. In Service Support of Queen Elizabeth Class Integrated Navigation and Bridge Systems, and In Service Support for VM250 Radar, Astute Ships Inertial Navigation System, MK39 Gyroscope across Multiple Naval Platforms (QEC INBS). Contract award, 15 May 2025. BidSkim, https://bidskim.com/tender/196268/in-service-support-of-queen-elizabeth-class-integrated-navigation-and-bridge-sys (accessed 5 November 2026).