Keurig Green Mountain, formerly Green Mountain Coffee Roasters, is a specialty coffee and coffeemaker company founded in 1981 and headquartered in the U.S. It sources, produces, and sells coffee, hot cocoa, teas, and other beverages under various brands in portion packs for its Keurig brewing systems; and sells coffee beans and ground coffee in bags and fractional packs. It sells many of its beverage varieties in K-Cup single-serve pods, and as of 2015 offers Vue, Rivo, Bolt, and K-Carafe pods as well. Through its own and its partnership licensed brands, the company offers over 400 different varieties of coffee and other beverage selections. These include coffees that are certified organic, Fair Trade Certified, specialty blends, and flavored coffees and beverages. Begun as a small specialty coffee roaster and store in Vermont in 1981, after regional and national expansion in the late 1980s and an IPO in 1993, Green Mountain Coffee Roasters completed its acquisition of the brewing-machine manufacturer Keurig, Inc. in 2006, enabling rapid growth through the high-margin sales of its many varieties of single-serve K-Cup pods for home and office use. GMCR changed its name to Keurig Green Mountain in March 2014.