Havas Worldwide London won the brief to create campaigns for Arla’s child nutrition and cheese products in South East Asia, Latin America and Africa after a shootout against DLKW Lowe.
Roth Observatory helped Arla run the pitch, which kicked off in December.
This is the first time that Arla has appointed an agency to handle advertising in emerging markets and Havas has been initially tasked with creating six campaigns, including TV work.
The appointment does not affect Wieden & Kennedy London, which will continue to run the brand’s global ad account and did not pitch for the developing markets business.
Daniel Floyed, the global brand director at Havas Worldwide London, said: "We’re very excited with this win, Arla is a company we’ve always respected, as they share our values and passion for purpose driven brands.
"We’ll be putting our creative council to work straight away to meet the challenge of extending this already strong brand into emerging markets."