| Company | Timeline | Status | |
| Constant Price Monitor Limited Director • General Manager | 30 Jan 1998←1 Year 2 Months→1 Apr 1999 | Active | |
Kennet Limited Director • General Manager | 30 Jan 1998←1 Year 2 Months→1 Apr 1999 | Dissolved | |
| Acorn (Paisley) Limited Director • General Manager | 30 Jan 1998←1 Year 2 Months→1 Apr 1999 | Active | |
| Birkenshaw Distributors Limited Director • General Manager | 30 Jan 1998←1 Year 2 Months→1 Apr 1999 | Active | |
| Stepgrades Motor Accessories Limited Director • Unreported | 30 Jan 1998←1 Month→25 Mar 1998 | Active | |
| Birkenshaw Tyre Company Limited Director • General Manager | 30 Jan 1998←1 Year 2 Months→1 Apr 1999 | Active | |
| National Tyre Service Limited Director • General Manager | 4 Mar 1997←2 Years→1 Apr 1999 | Active | |
