| Company | Timeline | Status | |
| Cystosurge Limited Director • Company Director | 13 Apr 2006←17 Years→31 Oct 2023 | Dissolved | |
| Cystosurge Limited Secretary • Unreported | 13 Apr 2006←17 Years→31 Oct 2023 | Dissolved | |
| Melrose Properties Limited Director • Unreported | 3 Aug 1993←32 Years→Current | Liquidation | |
| Melrose Properties Limited Secretary • Unreported | 3 Aug 1993←32 Years→Current | Liquidation | |
| Sigmacon (UK) Limited Secretary • Instrument Specialist | 26 May 1992←33 Years→Current | Liquidation | |
| Laprosurge Limited Director • Instrument Specialist | 17 Feb 1992←31 Years→25 May 2023 | Active | |
| Laprosurge Limited Secretary • Unreported | 17 Feb 1992←31 Years→25 May 2023 | Active | |
| Sigmacon (UK) Limited Director • Unreported | 1 Jan 1970←55 Years→Current | Liquidation | |
