Much of the equipment they provided survived in use for the greater part of the twentieth century. Saxby and Farmer became the major contractor responsible for building signal boxes on behalf of railways. The Type 5 design was one of the most successful and long-lived of all contractors’ signal box designs, between 1876 and 1898 with eleven examples still in  use on Network Rail and a further ten on heritage railways or otherwise preserved. The partnership with Farmer ended in 1888 and the French works became part of John Saxby Ltd in 1889. In 1901 the British company that Saxby founded merged with several rivals to create the Westinghouse Brake and Signal Company Ltd. The French company is now part of United Technologies Corporation. John Saxby died at Hassocks, Sussex on 22 April 1913. He is commemorated with a modern plaque in Brighton Station.