Balfour Beatty plc is an international infrastructure group based in the United Kingdom with capabilities in construction services, support services and infrastructure investments. A constituent of the FTSE 250 Index, the company is active across the UK, US and Hong Kong. In terms of turnover, Balfour Beatty was ranked in 2021 as the biggest construction contractor in the United Kingdom. It was formed on 12 January 1909 by the engineer George Balfour and the accountant Andrew Beatty. Initially working on tramways, the company soon expanded into power and general contracting; the First World War saw it construct several army bases and various other works to support the British war effort. During the 1920s and 1930s, Balfour Beatty reoriented away from bus and tramway operations towards more lucrative heavy civil engineering, particularly the development of Britain's National Grid and various power stations. Early international projects include hydro electric power schemes in the Dolomites, Malaya and India, power stations in Argentina and Uruguay, and the Kut Barrage on the Tigris in Iraq. Wikipedia