1. ABB Ltd.
2. Active Power Inc.
3. AES Corporation
4. Altair Nanotechnologies Inc.
5. BYD Co. Ltd.
6. EnSync Inc.
7. Evapco Inc.
8. General Electric Company
9. Hitachi
Ltd.
10. LG Chem Ltd.
11. Mitsubishi Heavy Industries
Ltd.
12. NEC Corporation
13. Panasonic Corporation
14. Samsung SDI America Inc.
15. Siemens AG
16. Tesla Inc.
17. Toshiba Corporation