Gamesa was founded in 1976 and is a long-established wind turbine manufacturer in Spain. In 2017, it merged with Siemens' wind power business to form SGRE. Its headquarters is in the Basque Autonomous Region of Spain. It is the second largest wind turbine manufacturer globally and the largest in offshore wind power. It focuses on the research, development, manufacturing, service and energy storage of onshore and offshore wind turbines. Siemens Gamesa 36K Info.