| Company | Timeline | Status | |
| David Robotham Limited Director • Architect | 1 May 1995←9 Years→23 Sep 2004 | Active | |
| Motor Design Group Limited Director • Architect | 9 Nov 1994←4 Years→30 Apr 1999 | Active | |
| M.D.G. Limited Director • Architect | 1 Jul 1994←4 Years→30 Apr 1999 | Active | |
| Broomco (875) Limited Director • Architect | 20 Sep 1991←12 Years→30 Sep 2003 | Dissolved | |
