| Company | Timeline | Status | |
| Signo Nanocare UK Limited Director • Director | 17 Jun 2011←14 Years→Current | Active | |
| Signo Limited Secretary • Company Director | 1 Dec 2005←19 Years→Current | Active | |
| Tankguard Limited Secretary • Director | 28 Sep 2005←20 Years→Current | Active | |
| Tankguard Limited Director • Unreported | 28 Sep 2005←20 Years→Current | Active | |
| Signo Limited Director • Unreported | 31 Mar 2005←20 Years→Current | Active | |
