| Company | Timeline | Status | |
| Promethean World Limited Director • Company Director | 26 Jul 2012←3 Years→17 Nov 2015 | Active | |
Promethean Technology Limited Director • Company Director | 26 Jul 2012←3 Years→17 Nov 2015 | Dissolved | |
| Chalkfree Limited Director • Company Director | 26 Jul 2012←3 Years→17 Nov 2015 | Active | |
| Promethean (Holdings) Limited Director • Company Director | 26 Jul 2012←3 Years→17 Nov 2015 | Active | |
| Promethean Limited Director • Company Director | 26 Jul 2012←3 Years→17 Nov 2015 | Active | |
