| Company | Timeline | Status | |
| Questril Limited Director • It Applications Trainer | 25 Sep 1998←26 Years→24 Dec 2024 | Dissolved | |
| C Engelmann Limited Secretary • Secretary | 27 Oct 1994←22 Years→17 Oct 2017 | Active | |
| C Engelmann Limited Director • Director | 25 Oct 1991←34 Years→Current | Active | |
