| Company | Timeline | Status | |
| Sillars (TMWD) Limited Director • Director | 2 May 2007←1 Year 4 Months→1 Sep 2008 | Dissolved | |
Fergus Mackenzie & Co Ltd Director • Management Accountant | 14 Feb 1992←2 Years 3 Months→27 May 1994 | Dissolved | |
| Sillars Holdings Limited Director • Management Accountant | 14 Feb 1992←16 Years→1 Sep 2008 | Dissolved | |
| Sillars (B. & C.E.) Limited Director • Management Accountant | 14 Feb 1992←16 Years→1 Sep 2008 | Dissolved | |
| Sillars Insurance Services Limited Director • Management Accountant | 14 Feb 1992←2 Years 1 Month→25 Mar 1994 | Dissolved | |
| Sillars Road Construction Limited Director • Management Accountant | 14 Feb 1992←16 Years→1 Sep 2008 | Dissolved | |
