| 1855 | Jean Schweiter and Heinrich Schrader build one of the first mechanical pirn winders in their repair workshop |
| 1894 | Jean Schweiter takes over the workshop and runs it as an engineering factory |
| 1906 | Jean Schweiter and his company win the recognition of the textile world with his invention of the horizontal spindle replacing |
| 1912 | Foundation of Schweiter AG and registration in the Swiss Commercial Registry |
| 1973 | Schweiter is listed at Swiss Stock Exchange |
| 1986 | Hans Widmer takes over the majority of Schweiter shares |
| 1989 | Establishment of SSM AG by merger of the companies Schärer, Schweiter and Mettler Establishment of Schweiter Technologies as a holding company |
| 1998 | Acquisition of Satis Vacuum Group Baar, Switzerland by Schweiter Technologies |
| 1999 | Acquisition of Stähle Eltex in Reutlingen, Germany |
| 1999 |
Acquisition of Hacoba Spultechnik in Wuppertal, Germany |
| 2000 | Acquisition of Ismeca Group (consisting of business segments Ismeca Semiconductor and Ismeca Automation) in La Chaux-de-Fonds, Switzerland |
| 2004 |
Acquisition of LOH Group in Dornach, Switzerland with production sites in Wetzlar, Germany and Oensingen, Switzerland |
| 2005 | Disposal of Ismeca Automation |
| 2008 2009 |
Sale of Satisloh to Essilor Group Acquisition of Alcan Composites |
| 2012 | Acquisition of Giudici Italy |
| 2012 | Sale of Ismeca Semiconductor |