| Company | Timeline | Status | |
| Ethel Roberts Limited Director • Company Director | 31 Aug 1991←23 Years→25 Aug 2014 | Dissolved | |
| Ethel Roberts Limited Secretary • Unreported | 31 Aug 1991←23 Years→25 Aug 2014 | Dissolved | |
| Laboratory Facilities Limited Secretary • Unreported | 31 Aug 1991←23 Years→25 Aug 2014 | Dissolved | |
| Laboratory Facilities Limited Director • Company Director | 31 Aug 1991←23 Years→25 Aug 2014 | Dissolved | |
