The metropolitan area is a major hub for education and is home to many large companies; in particular in the sectors of food production, agriculture, renewable energy and green tech. Major companies include Vestas Wind Systems A/S and Arla Foods. Vestas is a Danish manufacturer, seller, installer, and servicer of wind turbines and the largest in the world of its kind; and Arla is a Swedish-Danish dairy cooperative with headquarters in Aarhus and is the largest producer of dairy products in Scandinavia and the seventh largest dairy company in the world, measured by turnover. Among cooperative dairy companies, Arla is the third largest in the world.