?- VARTA Microbattery GmbH
- Clarios LLC
- Toshiba Corp
- INTILION GmbH
- Panasonic Corporation
- Tadiran Batteries GmbH
- EAS Batteries GmbH
- Saft Groupe S.A.
- E4V
- Duracell Inc
- Contemporary Amperex Technology Co Ltd
- BYD Company Ltd.