1. ABB LTD.
2. ALSTOM SA
3. CROMPTON GREAVES LIMITED
4. DONGFANG ELECTRICALS LTD.
5. FUJI ELECTRIC CO. LTD.
6. GE DIGITAL ENERGY
7. HITACHI LTD.
8. HYOSUNG POWER & INDUSTRIAL SYSTEMS – GIS
9. HYUNDAI HEAVY INDUSTRIES CO. LTD.
10. KANOHAR ELECTRICALS LTD.
11. MITSUBISHI ELECTRIC CORPORATION
12. NISSIN ELECTRIC CO. LTD.
13. SCHNEIDER ELECTRIC SE
14. SIEMENS AG
15. TOSHIBA CORPORATION