Vestas Wind Systems A/S is a Danish manufacturer, seller, installer, and servicer of wind turbines. It was founded in 1945, and as of 2013, it is the largest wind turbine company in the world. The company operates manufacturing plants in Denmark, Germany, India, Italy, Romania, the United Kingdom, Spain, Sweden, Norway, Australia, China, and the United States, and employs more than 21,000 people globally. Vestas traces its roots to 1898 where Hand Smith Hansen bought a black smith shop which operated as a family business. After the second world war Vestas was founded in 1945 by his son Peder Hansen as "Vestjysk Stålteknik A/S" (West-Jutlandish steel technology). The company initially manufactured household appliances, moving its focus to agricultural equipment in 1950, intercoolers in 1956, and hydraulic cranes in 1968. It entered the wind turbine industry in 1979, and produced wind turbines exclusively from 1989. The companys North American headquarters was relocated in 2002 from Palm Springs, California to Portland, Oregon.