?- Anhui Ankai Automobile Co. Ltd
- Ashok Leyland
- BYD Company Limited
- Daimler AG
- King Long United Automotive Industry Co. Ltd.
- NFI Group Inc.
- Proterra Inc.
- Tata Motors Limited
- Volvo Group
- Zhengzhou Yutong Group Co. Ltd.
- Zhongtong Bus Holding Co. Ltd.