Kier Group: KierBAM secures c.£600m Devonport defence contract

Kier Group PLC

02 November 2026

 

2 November 2026    

KierBAM joint venture secures c.£600m contract to deliver Devonport defence upgrade 

Kier Group plc ("Kier") and the KierBAM joint venture (KBJV) today announce its appointment by Babcock International Group, on behalf of the MoD's Defence Nuclear Enterprise (DNE), to support the delivery of a c.£600m programme of works at Devonport Royal Dockyard's 10 Dock in Plymouth. 

The upgraded 10 Dock facility will provide vital enhancements to strengthen the UK's defence resilience by improving Devonport's capability to support the maintenance and availability of current and future submarine fleets.

Works include major civils infrastructure, including a water retaining boundary structure and nuclear licensed components, alongside extensive engineering works. This includes the construction of buttresses, new subways, and in-situ subway structures, plus the installation of rock anchors, dowels, reinforcement and a multi-tonne caisson. 

KBJV is a key delivery partner within Babcock's wider long-term investment programme at Devonport, which will see significant upgrades to infrastructure over the coming decade to meet the evolving requirements of the UK's Royal Navy. The 10 Dock main works is being delivered as part of Babcock's Major Nuclear Capital Programme at Devonport Royal Dockyard. 

As an important part of the UK Government's wider Defence Nuclear Enterprise, focused on maintaining the UK's nuclear deterrent and next-generation submarine capability, this project represents ongoing investment in the UK's defence infrastructure and long-term operational requirements. 

Craig Small, managing director for Energy & Environment at Kier Infrastructure, said: "Devonport Royal Dockyard's 10 Dock is a critical piece of infrastructure to strengthen the UK's defence capabilities, and we're proud to have been entrusted with its delivery. We will use our existing knowledge of the site's unique demands, alongside our longstanding expertise in UK nuclear and defence programmes, to support the delivery of these works."

About Kier

Kier is a leading UK infrastructure and construction group.

Our purpose is to create lasting value through essential infrastructure, and we are committed to leaving lasting legacies through our work.

We create value through our uniquely combined differentiators, including: our leading framework positions across diverse sectors, our approach which combines national scale with local delivery and our end-to-end capability across the project lifecycle.

Combining deep sector expertise, trusted relationships, digital capability and a culture of safety, collaboration and continuous improvement, we help customers achieve better outcomes while creating sustainable long-term value.

You can find out more about Kier on our website.           

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