| Company | Timeline | Status | |
| Trevor Bolton Engineering Limited Secretary • Unreported | 3 Apr 2008←3 Days→6 Apr 2008 | Dissolved | |
| Trevor Bolton Engineering Group Limited Secretary • Unreported | 3 Apr 2008←3 Days→6 Apr 2008 | Active | |
| Trevor Bolton Engineering Services Limited Secretary • Unreported | 3 Apr 2008←3 Days→6 Apr 2008 | Active | |
