Horace William Langdon established a
quantity surveying practice in
Holborn, London in 1919, and worked for a time in partnership (dissolved 1927) with a John Belmont Taylor. In 1921 Cecil Tom Every joined Langdon's practice, and they formed
Langdon & Every in 1928, which expanded to operate in the Middle East, Australasia and Asia Pacific regions as well as in the UK. (Langdon was a local councillor and served as mayor of the
Metropolitan Borough of Holborn (1935–1936); Every was Director of Post-War Building Programmes at the
Ministry of Works, recognised with a
CBE in the
1946 New Year Honours.) In 1931, another quantity surveying practice was established by Owen Davis. Cambridge graduate and QS John Belfield joined Davis establishing a partnership, Davis & Belfield, in 1935. In 1944, they formed a new partnership with Bobbie Everest (a descendant of
George Everest, surveyor general of India and the namesake for
Mount Everest), becoming
Davis, Belfield & Everest. Langdon & Every merged with Davis Belfield & Everest in 1988 to become
Davis Langdon & Everest, and in 2004 Davis Langdon & Everest converted to a Limited Liability Partnership to become
Davis Langdon LLP. ==AECOM era==