History
Past to Present.
| 1948 | Defensor was founded in Zurich |
| 1958 | Plascon in Münchenstein was founded |
| 1975 | Acquisition of Defensor by WMH |
| 1981 | Acquisition of Plascon AG by WMH |
| 1982 | Name change of Plascon AG into Condair AG |
| 1989 | Acquisition of Nortec by WMH |
| 1995 | Integration of Novasina AG in Defensor AG |
| 1995 | New Name: Axair Ltd. Systems for Air Treatment |
| 1995 | Merger of Defensor AG and Condair AG |
| 1996 | ISO - Certification |
| 1999 | Condair and Defensor under one roof in Pfäffikon |
| 2001 | The new strategic Division AxEnergy/CT FOG System was founded |
| 2008 | New name: Walter Meier. AxEnergy is a Member of Walter Meier Group |
