
| 1952 | Friedrich Ott establishes Techem in Germany |
| 1979 | Market launch of the first water meter |
| 1981 | German Decree on Heat Cost allocation comes into force |
| 1996 | Introduction of the Techem radio system |
| 2001 | Market leader in Germany Techem‘s first overseas branch outside Europe |
| 2006 | Development and market launch of adapterm, Energy Saving Solution |
| 2007 | Â Introduction of radio smoke detectors |
| 2008 | The Australian Macquarie Group becomes the majority shareholder |
| 2009 | Conversion of Techem AG into Techem GmbH |
| 2010 | Introduction of the value-added platform Techem Smart System |
| 2011 | As one of the first companies in the energy sector, Techem Energy Contracting receives the DIN EN 16001 certification for its energy management system |