The Institute of Directors (IoD) is a UK-based organisation, founded in 1903 and incorporated by royal charter in 1906 to support, represent and set standards for company directors. It occupies grade I listed premises on Pall Mall, London built 1826-28 to the designs of John Nash.
116 Pall Mall building was previously occupied by the United Service Club which was disbanded in 1978. The building was then taken over by the IoD which they still reside.
The IoD currently has around 35,911 members (2012), and has premises open for the use of those members in London (3 locations), Bangor, Belfast, Birmingham, Bristol, Cambridge, Cardiff, Edinburgh, Glasgow, Leeds, Manchester, Norwich, Nottingham, Paris, and Reading.