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Chronological Order |
| Sep. 1993 | - | Feb. 1994 | Telekurs AG | |
| Oct. 1993 | - | Sep. 1994 | Swiss Bank Corporation (SBC) | |
| Mar. 1994 | - | Feb. 1996 | Telekurs AG | |
| Dec. 1994 | - | Apr. 1995 | Zürcher Kantonalbank (ZKB) | |
| Mar. 1995 | - | Sep. 1996 | EPA Neue Warenhaus AG (EPA) | |
| Mar. 1996 | - | Aug. 1996 | Telekurs AG | |
| July 1996 | - | present | AC Electronics AG | |
| Oct. 1996 | - | Mar. 1997 | Swiss Bank Corporation (SBC) | |
| June 1997 | - | Nov. 1997 | Zürcher Kantonalbank (ZKB) | |
| Oct. 1997 | - | Mar. 1998 | UBS | |
| Sep. 1998 | - | Dec. 1998 | Zürich Insurance | |
| Jan. 1999 | - | July 1999 | UBS | |
| Nov. 1999 | - | Dec. 1999 | Zürcher Kantonalbank (ZKB) | |
| Jan. 2000 | - | Aug. 2000 | UBS | |
| Sep. 2000 | - | Oct. 2000 | Credit Suisse (CS) | |
| Oct. 2000 | - | Jan. 2002 | AC Holding AG | |
| Nov. 2000 | - | Mar. 2001 | O'Reilly & Associates | |
| Feb. 2002 | - | present | AC Holding AG | |
| Dec. 2008 | - | Feb. 2009 | REALTECHNOLOGIE AG |
| Klauser Informatik Einsiedlerstr. 53 8810 Horgen ZH Switzerland | Telephone: Email: klauser@klauser.ch URL: http://www.klauser.ch |