The review follows the shift of the $340 million account in the US, which has moved three times in the past two years. In January, it reviewed out of Young & Rubicam after less than a year and was handed to the Miami agency Crispin Porter & Bogusky.
In the UK, it follows the appointment of the new marketing chief, Andrew Brent, who took up the role of chief marketing officer at Burger King International in April. Paul Reynish, the former head of marketing, was also promoted to marketing director last year.
DLKW picked up the Burger King business two years ago from Lowe without a formal pitch.
The agency was responsible for the controversial spot promoting the chain's Pepperjack Stack, which received more than 80 viewer complaints to the Independent Television Commission. The ad, which featured a women who had been bitten by her husband, was accused of condoning domestic violence.