| Company | Timeline | Status | |
| Cistom Engineering (Holdings) Limited Director • Engineer | 30 Sep 2020←5 Years→Current | Active | |
| Cistom Engineering (Holdings) Limited Director • Engineer | 30 Sep 2020←4 Years→28 Mar 2025 | Active | |
| Cistom Engineering Limited Director • Engineer | 14 Feb 2006←19 Years→Current | Active | |
| Cistom Engineering Limited Director • Engineer | 14 Feb 2006←19 Years→28 Mar 2025 | Active | |
