Chief executive, ukPossible
Currently UK chief executive at Possible, Miller helped found one of the UK's first digital marketing companies, DNA. It was acquired by Razorfish in 2005 and he was appointed as chief executive.
He has spent the past four years working with a variety of global brands including Audi, Asda, McDonald's and O2.
In 2010 he jointly set up Fabrix Worldwide, which was backed by WPP before jumping ship to Possible in February this year.