| Company | Timeline | Status | |
| Oban War And Peace Museum Director • Company Director | 5 Jul 2007←1 Year 11 Months→17 Jun 2009 | Active | |
| R.J. Ledger Limited Director • Director | 4 Aug 1992←31 Years→26 Sep 2023 | Active | |
| R.J. Ledger Limited Secretary • Director | 4 Aug 1992←31 Years→26 Sep 2023 | Active | |
| Wessex Software Group Limited Director • Director | 27 Jul 1991←31 Years→27 Dec 2022 | Dissolved | |
| Helyda Software Limited Director • Computer Consultant | 1 Jan 1970←55 Years→Current | Active | |
