Hawkesbury Valley was formed in June 1958 when Bob Kirkpatrick purchased the Maraylya to Windsor and Riverstone services from NK Lakeman-Fidler.
[3][4] The Calabro family had sold their 70 vehicle Bonnyrigg operation to Westbus in June 1989[5] and subsequently purchased Surfside Buslines in October 1989.
[6][7] The Calabros expanded their Sydney presence purchasing Neville's Bus Service in 1994 and Liverpool Transport Co in 1997.
During 1994/95 Hawkesbury Valley operated a service between the international and domestic terminals at Sydney Airport for Qantas.
[8] From 2005 Hawkesbury Valley's services formed part of Sydney Bus Region 1, held in partnership with Busways and Westbus.