| Company | Timeline | Status | |
| HTGT Ltd Director • Civil Engineer | 29 Nov 2004←16 Years→13 Jul 2021 | Dissolved | |
| Yolles Partnership Limited Director • Structural Engineering | 1 Jan 1998←6 Years→30 Nov 2004 | Dissolved | |
| Robert West Consulting Limited Director • Chartered Consulting Engineer | 1 Jul 1994←2 Years 11 Months→12 Jun 1997 | Active | |
