The review, which is being managed by Billetts, is expected to see Eurostar increase its media spend from £4.4 million to just over £10 million and has been instigated to coincide with the opening of its St Pancras International Terminal in London.
Following a burst of international activity with the company's launch in 1994, Eurostar quickly centralised most of its media activity to London and the South-East, its main customer base.
However, the company is looking to target consumers further north because it can now boast shorter journey times, which it believes will be of great interest to travellers outside of the capital.
Its last major TV campaign, created by TBWA\London, ran last November as the company celebrated its tenth anniversary. The TV ads were Eurostar's first for more than two years.
TBWA's tenure of the creative account is unaffected by the review.