| Company | Timeline | Status | |
| Amberline Design Limited Secretary • Financial Director | 22 Mar 2005←12 Years→1 Dec 2017 | Active | |
| Osteocare International Limited Director • Financial Director | 21 Jan 2002←15 Years→1 Dec 2017 | Active | |
| Osteocare International Limited Secretary • Financial Director | 21 Jan 2002←3 Years→1 Dec 2005 | Active | |
| Osteocare Implant System Limited Secretary • Financial Director | 11 Aug 1999←6 Years→1 Dec 2005 | Active | |
| Osteocare Implant System Limited Director • Financial Director | 11 Aug 1999←18 Years→1 Dec 2017 | Active | |
| Sapphire Tooling Limited Director • Secretary | 30 Apr 1996←21 Years→1 Dec 2017 | Dissolved | |
| Sapphire Tooling Limited Secretary • Secretary | 30 Apr 1996←21 Years→1 Dec 2017 | Dissolved | |
| Auty Precision Products Limited Director • Company Secretary | 30 Apr 1996←21 Years→1 Dec 2017 | Active | |
| Auty Precision Products Limited Secretary • Company Secretary | 30 Apr 1996←21 Years→1 Dec 2017 | Active | |
| A.M.B. Engineering Limited Director • Financial Director | 31 May 1991←26 Years→1 Dec 2017 | Active | |
