| Company | Timeline | Status | |
| Murgitroyd Group Limited Director • Patent Agent | 18 Oct 2001←1 Year 8 Months→1 Jul 2003 | Active | |
| Murgitroyd & Company Limited Director • Patent Agent | 31 May 1993←10 Years→1 Jul 2003 | Active | |
| Artroyd Properties Limited Director • Chartered Patent Agent | 31 Dec 1988←12 Years→14 Nov 2001 | Active | |
