• Sitronics Telecom Solutions (Czech Republic)

• Intracom Telecom Solutions (Greece)

• BaaN (Netherlands)

• Microsoft (USA)

• Sagem (France)

• Siemens (Germany)

• Landis+Gyr (Netherlands)

• Schneider (Germany)

• INFORMIX (USA)

• ISKRAEMECO (Slovenija)

• ELSTER (Luxembourg)

• NITES d.o.o. (Bosna i Hercegovina)

• UNIT group (Srbija)

• STEP d.d. Sarajevo (Bosna i Hercegovina)