| Company | Timeline | Status | |
| 00909785 Limited Director • Engineer | 19 Oct 1991←1 Year 6 Months→13 May 1993 | Dissolved | |
| Allenwest (Seml) Limited Director • Engineer | 19 Oct 1991←1 Year 6 Months→13 May 1993 | Dissolved | |
| 00237163 Limited Director • Engineer | 19 Oct 1991←1 Year 6 Months→13 May 1993 | Active | |
| Simplex Electric Limited Director • Engineer | 19 Oct 1991←1 Year 6 Months→13 May 1993 | Active | |
| Allenwest (Sehl) Limited Director • Engineer | 19 Oct 1991←1 Year 6 Months→13 May 1993 | Dissolved | |
