Six agencies are thought to be contesting the business, with Ogilvy & Mather, Euro RSCG, Wieden & Kennedy and Y&R all believed to be taking part with at least two other unnamed agencies, while previous project incumbents BBH and Fallon are not participating.
R3's principal Greg Paull declined to comment on the specifics of the review, but he said: "Carlsberg is looking for energy, passion and commitment, and they're looking for a long-term strategic partner."