Vestas Wind Systems A/S engages in the business of developing, manufacturing, selling, and maintaining wind power plants. It operates through the Power Solutions and Service segments. The Power Solutions segment focuses on onshore and offshore wind power plants, wind turbines, and development sites. The Service segment is involved in service contracts and spare parts. The company was founded by Smith Hansen and Peder Hansen in 1898 and is headquartered in Aarhus, Denmark.