Brassey was President of the Royal Statistical Society from 1879 to 1880. He was conferred with Honorary Membership of the Institution of Engineers and Shipbuilders in Scotland in 1891.[http://www.iesis.org/honorary-fellows.html] Following his return from Australia, he was President of the London Chamber of Commerce 1901–1902. He served as Lord Warden of the Cinque Ports from 1908 to 1913. He was appointed a Knight Grand Cross of the Order of the Bath in 1906 and made Viscount Hythe, of Hythe in the County of Kent, and Earl Brassey in 1911.