BDŽ − Bulgarian State Railways − Български държавни железници
Government-owned. Founded in 1885. HQ in Sofia.  


Steam locomotives
 
BDŽ01
BDŽ03
BDŽ05
BDŽ15
BDŽ16
BDŽ35
BDŽ36
BDŽ49
BDŽ600.76
 
Diesel locomotives
 
BDŽ04
BDŽ06
BDŽ07.0
BDŽ07.1
BDŽ51
BDŽ52
BDŽ55
BDŽ75
BDŽ76
BDŽ77
BDŽ93
 
Electric locomotives
 
BDŽ41.1
BDŽ42.0
BDŽ42.1
BDŽ43.3
BDŽ43.5
BDŽ44
BDŽ45
BDŽ46.0
BDŽ46.1
BDŽ46.2
BDŽ60
BDŽ61
 
EMUs
 
BDŽ30
BDŽ31
BDŽ32
BDŽ33
 
DMUs
 
BDŽ10
BDŽ18