Vestas, or Vestas Wind Systems,'s the largest wind turbine manufacturer in the world with a 28% market share. The company operates plants in Denmark, Germany, India, Italy, Britain, Spain, Sweden, Norway, Australia, China, and Windsor, Colorado, After a sales slump in 2005, In December, 2008, Vestas announced a major expansion of its North American headquarters in Portland, Oregon. In late 2008 the company also announced a manufacturing expansion in Colorado. History Vestas's a Danish company… (More on Vestas)