Accounts Diageo Sends $350 Million Global Media Account to Omnicom’s PHD Dentsu Aegis Network's Carat previously handled most of the account Diageo owns a wide range of liquor brands, including Smirnoff and Johnnie Walker. Diageo By Erik Oster March 17, 2020 The largest media review of 2020 thus far, and for the foreseeable future, has come to close. Erik Oster @ErikDOster erik.oster@adweek.com Erik Oster is an agencies reporter for Adweek. Recommended articles