| Company | Timeline | Status | |
| Umbra Athletics Limited Secretary • Unreported | 15 Dec 2000←24 Years→Current | Active | |
| Umbra Software Limited Secretary • Unreported | 28 Dec 1990←34 Years→Current | Active | |
| Umbra Software Limited Director • Unreported | 1 Jan 1970←55 Years→Current | Active | |
