• 1959 Invention of single-phase motor protection starter by Walter Tatje
  • 1960 Introduction of 3-phased motor protection starter
  • 1969 Production of control units
  • 1979 Opening of a company owned research laboratory for electronic switching units and control elements
  • 1982 Opening of a tool shop and molding department
  • 1996 DIN ISO 9001 certification
  • 1997 Foundation of Nolta Academy
  • 1998 Internationalization of sales especially within the European Union 
  • 2003 Invention of a patented telemetric motor protection plug for remote surveillance and maintenance of pumps and other machines
  • 2007 Foundation of a subsidiary in Shenzhen, China
  • 2008 Acquisition of NIVA, Albbruck, a leading level regulator manufacturer, and integration in the newly founded water technology department.
  • 2008 Foundation of a subsidiary in Northampton, MA, USA
  • 2011 Opening of the new manufacturing facility in Coelbe, Germany
  • 2012 Patent for the worlds first wireless float switch
  • 2013 Foundation of Nolta India pvt. ltd.