Leading manufacturers include global players like Vestas (Denmark), Siemens Gamesa (Spain/Germany), and Goldwind (China), alongside specialized suppliers from industrial hubs in China (e., Shandong, Jiangsu), India, and the U. Regional suppliers often provide. Vestas Wind Systems A/S ( Vestas ) is the largest wind turbine manufacturer/supplier in the world with an installed capacity of more than 203 GW including 11 GW of offshore wind turbines. Vestas North America is an. Under the brand name Winergy, Flender GmbH supplies gearboxes, generators and services for wind turbines and is one of the leading manufacturers in the worldwide with more than 175 GW of supplied gearbox capacity and over 50,000 generators for wind turbines. ^ "An Overview of All the Wind Based Energy Companies in India". 7. Enertrag SE, based in Schenkenberg, Brandenburg, Germany, is a private renewable energy company founded in 1992.