| Company | Timeline | Status | |
| Warrington APT Laboratories Limited Director • Manager | 22 Dec 2000←5 Years→25 Mar 2006 | Active | |
| Warrington Fire Research Centre (London) Limited Secretary • Unreported | 26 Jan 1998←8 Years→25 Mar 2006 | Active | |
| Warrington Fire Research Group Limited Secretary • Unreported | 26 Jan 1998←8 Years→25 Mar 2006 | Active | |
| Warrington Fire Research Centre Limited Secretary • Unreported | 26 Jan 1998←8 Years→25 Mar 2006 | Active | |
| Warrington Certification Limited Secretary • Unreported | 31 Jul 1997←8 Years→25 Mar 2006 | Active | |
| Firas Limited Director • Manager | 4 Aug 1995←10 Years→25 Mar 2006 | Active | |
| Warrington Fire Research Consultants Limited Director • Technical Manager | 28 Mar 1992←14 Years→25 Mar 2006 | Active | |
| Warrington Fire Research Centre (London) Limited Director • Technical Manager | 28 Mar 1992←14 Years→25 Mar 2006 | Active | |
| Warrington Fire Research Group Limited Director • Technical Manager | 28 Mar 1991←15 Years→25 Mar 2006 | Active | |
| Certifire Limited Director • Technical Manager | 28 Mar 1991←15 Years→25 Mar 2006 | Active | |
