| Company | Timeline | Status | |
| Derbyshire Family Holdings Limited Director • Director | 14 Oct 2008←17 Years→Current | Active | |
| R.W. Derbyshire (Electrical Contractors)Limited Director • Manager | 6 Apr 1997←28 Years→Current | Active | |
| R.W. Derbyshire (Electrical Contractors)Limited Secretary • Unreported | 7 Mar 1992←7 Years→16 Jul 1999 | Active | |
