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Capacity 6mm, length 225mm, table 900 x 620mm, weight 700kg, adjustable angle guides, rules in table
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Rolls-Royce collaborates to support nuclear growth ambitions

Posted on 10 Dec 2025. Edited by: John Hunter. Read 168 times.
Rolls-Royce collaborates to support nuclear growth ambitionsArtist’s impression of AUKUS attack submarine. Photo courtesy of Rolls-Royce

Rolls-Royce Submarines has signed a contract with industry experts Assystem, AtkinsRéalis and Frazer-Nash to boost collaboration and gain benefit from the unique nuclear capabilities of each company. The new Capability Assured Strategic Partnership (CASP) backs UK-based businesses and represents a step forward in bringing together nuclear capability to better support the UK Royal Navy’s submarines programme and the wider Defence Nuclear Enterprise.

With a value of up to £400 million, this strategic alliance represents one of the largest single supply chain contracts in the history of Rolls-Royce Submarines. Having worked with all three partners for over 20 years, they are uniquely placed to support its future growth ambitions in advanced nuclear technologies. It represents a long-term commitment from the partners to deliver the collective engineering capabilities, nuclear expertise, and other professional services that Rolls-Royce can utilise to meet growing demand from the Ministry of Defence, and beyond.

In March 2023, it was confirmed that Rolls-Royce Submarines would provide all the nuclear reactor plants that will power new attack submarines as part of the tri-lateral agreement between Australia, the UK and the USA. This increase in demand from the Ministry of Defence and the AUKUS agreement means Rolls-Royce plans to double the footprint of its Raynesway site in Derby to support both UK and Australian defence programmes. Delivering the Defence Industrial Strategy, the build of new manufacturing and office facilities will create more than 1,000 skilled roles across a range of disciplines, including manufacturing and engineering, plus hundreds more across the supply chain.

Rolls-Royce has powered the UK Royal Navy’s nuclear submarines for over 65 years and is the only private company in the world with the nuclear capability to manage reactor design, manufacture and decommissioning within one single entity.

Nuclear renaissance

Chris Walker, supply chain director at Rolls-Royce Submarines, said: “We are in a nuclear renaissance across the UK and demand for this expert capability is growing all the time. The intent behind this strategic alliance is to harness the collective capabilities of each party to successfully deliver complex nuclear programmes and explore advanced nuclear technologies.

“We recognise that if we want to grow our business and maintain our critical commitments to the Ministry of Defence, then we cannot do it alone. Our decades-long relationships with Assystem, AtkinsRéalis and Frazer-Nash see the partners ideally placed to support us, bringing unique insight across the capability landscape.”

Chris Conboy, AtkinsRéalis managing director - Nuclear EMEA, said: “The UK is investing significantly in its defence capabilities, and nuclear remains at the heart of national security. Through the Capability Assured Strategic Partnership, Rolls-Royce Submarines can draw on deep, multi-disciplinary expertise, including AtkinsRéalis’ end-to-end experience in complex nuclear programmes. This partnership builds on our longstanding relationship with Rolls-Royce Submarines, enabling the successful delivery and safe operation of future submarine propulsion capability to the UK and our allies.”

Sarah Wilkes, Frazer-Nash managing director, said: “At Frazer-Nash we talk about solving challenges that matter and there aren’t many more important than national security. CASP is an exciting development which will see us working closer and better with RRSL and our partners at AtkinsRealis and Assystem, combining our expertise and specialisms in new ways to help keep the UK safe.”

Rolls-Royce Submarines currently employs more than 5,000 people and designs, manufactures and provides in-service support to the pressurised water reactors that power every boat in the Royal Navy’s submarine fleet. Rolls-Royce is currently supporting the existing Astute and Dreadnought boat build programmes through the delivery of reactor plant and associated components.

It also provides frontline support across the world for reactor plant equipment from its Operations Centre in Derby and supports the submarines when in the Barrow-in-Furness shipyard and the naval bases at Devonport and Faslane. In addition, there are technical specialists working in offices in Glasgow, Cardiff, and Thurso, Scotland.