Green Mountain Coffee Roasters' business amounts to more than a hill of beans. It offers about 200 varieties of coffee, cocoa, and tea, which it sells to wholesale customers such as supermarkets, convenience stores, resorts, and office-delivery services. Its client list has included ExxonMobil c-stores and McDonald's restaurants. The firm's coffee is sold under the Newman's Own Organics, Tully's, and its namesake Green Mountain Coffee labels. In addition, Green Mountain sells the K-Cup single-cup brewing systems for office and home use made by its subsidiary Keurig. Following a string of acquisitions in 2009, the company bought California's Diedrich Coffee and Canada's Van Houtte in 2010.