| 1965 | Founding of the company by Mr Jürg Brandenberger and Mr Ernst Ruosch | |
| 1975 | Founding of the limited company BRANDENBERGER+RUOSCH AG and entry in the commercial register. | |
| 1990 | Takeover of the majority of shares by Zschokke Holding SA | |
| 1993 | Wholly-owned subsidiary of Zschokke Holding SA | |
| 2003 | Takeover of the entire complement of shares by the two long-standing board members Dr. Markus Kellenberger and Lorenz Held
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