• BYD Company Ltd.
• Volvo Group
• Solaris Bus & Coach sp. z o.o. (Construcciones y Auxiliar de Ferrocarriles
S.A.)
• Volkswagen AG
• Nissan Motor Co. Ltd
• Ashok Leyland Limited (Hinduja Group Ltd.)
• Mercedes-Benz Group AG (Daimler Truck Holding AG)
• Yutong Bus Co. Ltd.
• Tata Motors Limited (Tata Group)
• Hyundai Motor Company