Babcock International Group plc is a UK defence and critical-engineering services company founded in 1891 and headquartered at 33 Wigmore Street in London. It's listed on the London Stock Exchange under the ticker BAB and is a constituent of the FTSE 100 index. The group employed 30,481 people as of 31 March 2026.
The company manages complex assets and infrastructure across four sectors: Marine, Nuclear, Land, and Aviation. Its primary clients include the UK Ministry of Defence, alongside civil customers such as Network Rail. Work spans the design, development, manufacture and integration of specialist systems for defence, nuclear and security applications.
For fiscal year 2026 Babcock reported revenue of £5,177.7 million and a market capitalisation of about £5.09 billion. The business is led by Chief Executive David Lockwood, with David Mellors as Chief Financial Officer and Ruth Cairnie as Chair. Harry Holt serves as Deputy Chief Executive. Operations extend beyond the UK across Europe, North America, South America, Africa and Australasia.