The agency beat Ogilvy & Mather, Y&R, McKinney and the incumbent, Kaplan Thaler Group, after the Australian-themed restaurant chain called a review of the business in August.
Lowe's New York chairman, Mark Wnek, confirmed that the agency had won the business. The brand spent around $82.3 million on measured media in 2007.
However OSI, the parent company of the Outback Steakhouse chain, has posted a $186 million loss in revenues for the first half of 2008.