About us . 
| 1939 | Founding of the company by Anton Frech |
| 1939-1950 | Fire Brigade vehicles, personnel and coaches |
| 1950-1960 | Construction of the Girobus and the Self-service Bus |
| 1956 | First gondolas supplied to Müller ropeways; Productshift from wheels to rope and rail (gondolas, aerialtrams, funiculars, monorails, tower platforms) |
| 1974 | First gondola cabins with fully automatic doors |
| 1980 | Company moves from Aarburg to Olten |
| 1984 | Introduction of the OMEGA gondola model |
| 1992 | ROTAIR Titlis |
| 2001 | Became part of the Doppelmayr Group |
| 2006 | Construction of Production Hall 4 |
| 2008 | Expansion of the company premises |
