?- Tesla
- Concorde Battery Corporation
- GS Yuasa International Ltd
- Kokam
- Teledyne Technologies Incorporated
- Mid-Continent Instrument Co. Inc.
- Saft Groupe SAS
- Sichuan Changhong Battery Co. Ltd
- Meggitt PLC
- ENERSYS
- EaglePicher Technologies
LLC
- HBL Power Systems Ltd