"Elektroistok-Projektni biro" has reference list of over 3,200 projects or 10,745 notebooks respectively, during the period since 1958 till today. In recent years, "Elektroistok-Projektni biro" annually develops and delivers more than 2700 printed copies of project documentation which makes it one of the leading and most important architectural firms in the field of electric power in the region. 

References Department for designing substations 

References Department for the design of transmission lines

Elektroistok – Copy office

TS 400/110kV Beograd 20
TS 400/110kV Vranje 4