McMillan was account manager at Westminster Strategy between 1990 and 1994.
For 13 years he was head of public affairs at Fishburn Hedges, before, in January 2007, starting up his own lobbying firm; Open Road. In 2014, Blue Rubicon bought Open Road, and McMillan also joined Blue Rubicon’s management board
- Public Affairs News Consultant of the year 2005
- Public Affairs News Consultancy of the year 2005
- Graham McMillan Linkedin, accessed 16 October 2014
- Daniel Farey-Jones Blue Rubicon and Open Road: the deal in more depth PR Week, 14 February 2014, accessed 16 October 2014
- Our team Open Road, accessed 16 October 2014