Fallon has won the £10 million Eurostar account in a three-way shoot-out against Beattie McGuinness Bungay and glue London. However, glue, Eurostar's digital agency of record, will now have an enhanced role on the account.
Eurostar called a review of its agency arrangements in preparation for the cross-Channel service's move from Waterloo to St Pancras and the launch of its 186mph High Speed 1 service to the continent in November.
Greg Nugent, the Eurostar marketing chief, said: "Fallon has come up with something very special about the launch of High Speed 1 in the UK. However, glue will be contributing all the way through. We already know glue London can do the 'digital bit', but we want it to sit with us and Fallon and come up with ideas above its station."
Mark Cridge, the glue chief executive, said: "Obviously we're gutted not to scoop the whole account, but for our first above-the-line pitch, it's not bad to be beaten by the best agency in London."
Fallon's creative treatment will focus on the launch of High Speed 1 marking a new age of travel. "It's about the future direction of where we take our business," Nugent added.
Eighty-seven agencies applied for the business when the review was called in November 2006. In December the list was cut to a shortlist of six that included Mother, the incumbent TBWA\London and Lowe London. Lowe later pulled out to concentrate on working with existing clients.
The Fallon partner Robert Senior said: "The team, the cause and the sheer scale of ambition at Eurostar makes this win an unusual privilege."
Eurostar will move from Waterloo to the refurbished St Pancras on 14 November. The move aims to attract more travellers from northern England and Scotland.
Last December, the start-up Hurrell and Dawson was appointed by Eurostar to promote its green credentials.