| 1852 - |
Establishment of Heinik-Mendl company that was the first machinery producer in Přerov |
| 1867 - |
Krátký Company - agricultural machines producer |
| 1951 - |
Establishment of the national enterprise Přerovské strojírny, n.p. |
| 1991 - |
Establishment of the new joint stock company PSP Engineering a.s. |
| 2003 - |
Family von Wedel became 100% shareholder - affiliated company IKN GmbH |
| 2012 - |
Transformation into the holding company with affiliates PSP Engineering a.s. and PSP Technické služby, a.s. |
| 2020 - |
Metrological services, OSH & Fire safety and Environment protection transferred under PSP Machinery s.r.o. |