1. Active Power
2. Amber Kinetics Inc.
3. Beacon Power
Llc
4. Calnetix Technologies
Llc
5. Acumentrics Inc.
6. Piller Group Gmbh
7. Powerthru
8. Temporal Power Ltd
9. Abb Limited
10. Adaptive Balancing Power
11. Schwungrad Energie Ltd.
12. Stornetic
13. American Maglev Technology