Babcock supports the maintenance and modernization of UK nuclear armed submarines and is subcontracted for work on U.S. nuclear armed submarines.
Nuclear weapons
Babcock sustains the entirety of the UK’s submarine fleet, including by delivering through-life support and life extension of the nuclear armed Vanguard class submarine.[i] In 2021, Babcock received a £3.5 billion, five-year contract with the UK Ministry of Defence for naval base operations, including at the HMNB Clyde, where UK nuclear armed submarines are stationed.[ii]
In 2023, Babcock completed the maintenance and life-extension programme for the HMS Vanguard and returned it to the Royal Navy.[iii] The UK government also awarded two further contracts for work on the nuclear armed Dreadnought class submarines, with a combined value of £120 million.[iv] Furthermore, under a £560 million contract, awarded in March 2024, Babcock will modernize the second of the Vanguard class, the HMS Victorious, to enable it to continue operational patrols “well into the 2030s”.[v]
In June 2020, Babcock was also subcontracted by General Dynamics to provide an additional 18 tactical Missile Tube Assemblies for both the UK Dreadnought and the U.S. Colombia-class submarines, designed to be armed with Trident nuclear weapons.[vi]
[i] SUBMARINE SUSTAINMENT (FMSP) (no date) | Babcock International. Available at: Submarine sustainment (FMSP) - Babcock International Group (Accessed: 21 August 2025).
[ii] Future Maritime Support Programme. Babcock International, 1 October 2021. Available at: https://www.babcockinternational.com/news/new-contract-for-naval-base-support-announced/.
[iii] ‘What we do matters. Annual Report and Financial Statements 2024’. Babcock International (2024), p. 11. Available at: Babcock Annual Report & Financial Statements 2024.
[iv] Babcock increases support on UK’s Dreadnought programme. Babcock International, 28 November 2023. Available at: Babcock increases support on UK’s Dreadnought programme - Babcock International Group.
[v] Contract awarded to refit UK nuclear submarine. Babcock International, 1 March 2024. Available at: Contract awarded to refit UK nuclear submarine - Babcock International Group; see also £560 Million investment to modernise nuclear submarine supporting more than 1,000 jobs. Government of the United Kingdom, 1 March 2024. Available at: £560 Million investment to modernise nuclear submarine supporting more than 1,000 jobs - GOV.UK.
[vi] Babcock awarded multimillion pound missile tube contract extension by Electric Boat, Babcock International, 2 June 2020. Available at: https://www.babcockinternational.com/news/babcock-awarded-multimillion-pound-missile-tube-contract-extension-by-electric-boat/.
Last updated: 2026-06-08 14:19:30