| Company | Timeline | Status | |
| Wilkes Security Products Limited Secretary • Unreported | 21 Feb 1993←6 Years→31 Dec 1999 | Active | |
| Trimselter Limited Secretary • Unreported | 21 Feb 1993←6 Years→31 Dec 1999 | Active | |
| Samuel Wilkes (Engineering) Limited Secretary • Unreported | 21 Feb 1993←6 Years→31 Dec 1999 | Active | |
| Stancroft Limited Secretary • Unreported | 21 Feb 1993←6 Years→31 Dec 1999 | Active | |
