| Country | Company |
| Italy | Sadelmi Spa20099 Sesto San Giovanni |
| Serbia and Montenegro | JP RB "KOLUBARA"11550 Belgrade-Lazarevac |
| Serbia and Montenegro | JP Rudnik i Termoelektrana "GACKO"89240 Gacko |
| Serbia and Montenegro | PowerCOMM11070 Belgrade |
| Czech Republic | Siemens s.r.o. Bratislava |
| Czech Republic | Simens Enginering s.r.o.Praha |
| Czech Republic | Slovenská přenosová soustava a.s. Bratislava |
| Czech Republic | Slovenské Elektrárny a.s. Trenčín |
| Czech Republic | Stredoslovenská Energetika a.s.Zilina |
| Sweden | AREVA T&D AB421 30 Västra Frölunda |