both managing director Volker Roßner and Wilhelm Puchta

1997 mergence of the companies Puchta Steuerungstechnik and Rossner Elektrotechnik to ontec Elektro- und Steuerungstechnik GmbH.

1998 Affiliation of the business division of mechanical engineering.

2001/2002 Laying of the foundation stone/move into the newly constructed company building at ‘Kalkofen’ in Naila (industrial zone west)