Централна Енергоремонтна База

» 1948 CERB was founded in Sofia
» 1948 The electrical machines repair workshop was founde
» 1956 The transformers repair workshop was founded
» 1956 The mechanical workshop was founded

» 1965 The transport department was founded
» 1975 The center for welding and control of metals and specialized sections for vibration analysis and dynamic balancing of rotating machines and adjustment of the regulation of steam turbines was founded

» 1994 CERB became a joint stock company

» 2001 CERB was privatized

» 2002 Introducing of Quality Management System – EN ISO 9001-2000

» 2005 Introducing of Health and Safe Labour Management System – BSI-OHSAS 18001

» 2008 Introduction of the system of environmental management - EN ISO 14001:2004

» 2012 Introduction of the system of Social responsibility SA 8000:2008