1886 - 1893
Siemens Österreich (ÖSSW) agrees to build a municipal power plant with a lighting system for the city council of Agram (Zagreb).
1910
ÖSSW supplies Agram (Zagreb) with an electric streetcar. Around 1910 ÖSSW opens a Technical Bureau in Agram (Zagreb).
1921
Siemens AG in Yugoslavia (Jugoslovensko Siemens d.d. Zagreb-Beograd), with a heavy current and a light current department, is founded by ÖSSW and S&H Vienna.
1930
Siemens AG in Yugoslavia supplies electrical components for the Karlstadt hydroelectric power plant and builds the power transmission line Agram (Zagreb)-Karlstadt.
1941
Siemens AG in Yugoslavia is dissolved and Siemens AG in Croatia is founded in Zagreb. Juni 1945 Siemens AG in Croatia is dissolved.
1966
Siemens supplies remote control equipment for the state railways in Croatia.
1992
A Siemens sales company, Siemens d.d., is founded in Zagreb
1994
Siemens and the Croatian Koncar Holding found a joint venture for transformers in Zagreb (Koncar Power Transformers Ltd.)
2002
Siemens supplies the electrical equipment for the “project of the century” involving the water supply system and waste water treatment system at Kaštela Bay (Split).
2007
Siemens supports the Croatian government in introducing a border management information system