A blend of nuclear solutions to provide key infrastructure, security and clean energy

We deliver complex infrastructure across the UK’s energy and defence nuclear sectors. Our work spans nuclear new build projects, advanced modular and fusion technologies, and secure facilities for the UK’s defence capability. We also enable the safe management and decommissioning of nuclear materials. With proven expertise across all markets, we are helping to shape a cleaner, safer and more resilient nuclear future. 

Share this page:

For more information:

Contact our nuclear team

"We’re passionate about delivering world-class nuclear facilities, systems and infrastructure across the UK to provide safe, reliable and sustainable power for generations.  

The projects we design, construct, operate and maintain will transform communities and protect the UK’s energy future.  

Our cutting-edge nuclear expertise contributes towards strengthening national security and advancing defence capabilities. 

I’m incredibly proud of our dedicated and highly skilled team, and the work that they do across the critical nuclear sector." 

Craig Small, managing director, Kier Nuclear & Energy  

Since 2020, we have delivered

c. £1.4bn

of nuclear and energy projects across the UK

We have been working at Hinkley Point C for 

13 years

(since 2012) as part of our KierBAM joint venture (KBJV)

Since 1981 we have completed

> 70

projects on site at Sellafield

Capabilities

Nuclear specific engineering and technical expertise, delivering complex infrastructure projects across the UK


Complex stakeholder management expertise and experience, from design to commissioning


Skilled experience and capabilities in high-security and high-integrity construction for defence and energy clients


Integrated, multidisciplinary teams delivering efficient and collaborative solutions

A highly specialised nuclear specific safety and quality culture, engrained across our workforce


Commitment to social and environmental sustainability, including long-term resilience, on every project


Experts in complex nuclear compliant infrastructure for materials processing, storage and decommissioning


Our 360 approach means we have the full breadth of capability across the Kier Group, ensuring best-in-class outcomes for our clients and their assets

Skilled in supporting the next generation of nuclear technologies, including advanced modular and fusion systems


In house digital experts to optimise project design, delivery and operation. Advanced digital construction and digital twin expertise


Strong record of delivering nuclear projects for government and industry partners


Supported by a robust and highly specialised supply chain

We are trusted to deliver nuclear facilities across the UK. We design, build and maintain environments that meet today’s energy and safety demands while supporting and enabling innovations that will power the future of nuclear technology. 

Nuclear energy

The government has made it clear that nuclear has an essential role to play in their mission to make Britain a clean energy superpower.  

We are supporting this plan, which has cross-party support and includes large projects like Hinkley Point C (HPC) and the future Sizewell C, through our work in the nuclear energy sector.

Kier has been a trusted delivery partner on site at Hinkley Point C since 2012, as part of the KierBAM joint venture (KBJV).  

Originally commissioned to undertake the major earthworks on site, our scope of works has grown significantly since, with client EDF Nuclear New Build (NNB) leveraging our comprehensive experience of delivering large scale, complex civil engineering projects in highly regulated nuclear environments.  

Our works packages include the construction of roads and networks, ancillary buildings, a fish return system, and civil security fencing. 

The energy race

The UK is investing in future energy technology, like nuclear fusion and advanced modular reactors, through significant research and development activity.  

We manage feasibility studies for key clients in the nuclear sector.  

Submarine value chain

The UK has a clear ambition to increase defence spending to 3% of Gross Domestic Product (GDP) by 2034.  

As part of this ambition, the UK is building nuclear-powered submarines for defence, which in turn requires investment in critical infrastructure to build, maintain, and upgrade our submarine fleet.  

Our KierBAM Joint Venture (KBJV) is working as part of Babcock’s Integrated Major Infrastructure Projects team at Devonport Royal Dockyard.  

Delivered in a live operational environment on a licensed nuclear site, the projects we deliver - led by Babcock - form a critical component of the UK’s defence infrastructure, supporting the maintenance cycles of Astute Class nuclear-powered submarines and, ultimately, ensuring Royal Navy assets can be delivered safely back to sea. 

Nuclear materials lifecycle management

As the use of nuclear energy grows, the UK will need more fuel and better ways to manage the nuclear materials lifecycle.  

This includes partnerships to ensure that fuel production and materials storage are delivered safely. 

At Sellafield we have recently constructed the Residue Store Retreatment Plant (SRP) Process Building and Services Building.

The SRP is one of the site’s most complex nuclear infrastructure projects and, once operational, will play a critical role in managing the country's plutonium stockpile.

Our nuclear showcase


Key contacts

Craig Small, managing director
Nuclear & Energy

Simon Coultas, business development director
Natural Resources, Nuclear & Networks

Hilga Beckendorf, operations director
Nuclear & Energy