| 1988 | Foundation in a converted garage under the name KoCoS Mess- und Prozesstechnik GbR |
| 1990 | Move to new premises in the town centre of Korbach |
| 1992 | Acquisition of the fault recorder business owned by HERREN electronics |
| 1992 | Market launch of the digital fault recorder system developed by KoCoS |
| 1993 | Market launch of the switchgear test system |
| 1995 | Relocation to the present site on the Südring in Korbach |
| 1995 | Foundation of the first KoCoS subsidiary in South Africa |
| 1996 | Market launch of the protection relay test system |
| 1997 | Transformation into KoCoS Messtechnik AG |
| 1998 | Official opening of the new building for the production department in Korbach |
| 1999 | Market launch of the meter test system |
| 2000 | Foundation of KoCoS Optical Measurement GmbH |
| 2000 | Market launch of the power quality measuring system |
| 2002 | Foundation of the KoCoS subsidiary on the East Coast of the USA |
| 2003 | Market launch of the edge profile measuring system |
| 2004 | Market launch of the catalytic converter measuring system |
| 2006 | Foundation of KoCoS Engineering GmbH |
| 2006 | Foundation of KoCoS Automation GmbH |
| 2007 | Official opening of a new office building and training centre in Korbach |
| 2007 | Foundation of the KoCoS subsidiary in France |
| 2007 | Foundation of the KoCoS subsidiary in China |
| 2007 | Market launch of the power sources product line |
| 2008 | Market launch of the resistance measuring system |
| 2009 | Foundation of KoCoS audentec GmbH |
| 2009 | Foundation of the KoCoS subsidiary in Mexico |
| 2009 | Foundation of the KoCoS subsidiary on the West Coast of the USA |
| 2010 | Official opening of a new building in Weimar |
| 2010 | Foundation of the KoCoS subsidiary in Belgium |
| 2010 | Foundation of the KoCoS subsidiary in England |
| 2010 | Market launch of the vacuum test system |
| 2011 | Foundation of the KoCoS subsidiary in Austria |
| 2012 | Foundation of the KoCoS subsidiary in Taiwan |
| 2013 | Foundation of the KoCoS subsidiary in Poland |
| 2013 | Foundation of the KoCoS subsidiary in Bahrain |
| 2014 | Foundation of the KoCoS subsidiary in Sweden |
| 2014 | Official opening of a new building for the production department and a new training centre in Weimar |
