 In 2009, (now former) parent company Dean Foods was sued by a group of dairymen for allegedly creating a monopoly on milk in the Southeastern U.S.In 2010 Horizon published "Organic Standards of Care" guidelines which outlines its livestock and organic dairy practices 

In 2013, WhiteWave Foods (owner of the Horizon brand) became an independent company from Dean Foods.In July 2016 it was announced that the French company Danone would purchase WhiteWave Foods for $10.4 billion.