| Company | Timeline | Status | |
| Brown & Guion Limited Secretary • Unreported | 7 Jan 1997←28 Years→Current | Active | |
| Brown & Guion Limited Director • Architect | 23 Dec 1996←28 Years→Current | Active | |
| Guion & Brown Limited Director • Chartered Architect | 20 Mar 1992←33 Years→Current | Active | |
| Guion & Brown Limited Secretary • Unreported | 22 Nov 1991←10 Years→14 Jan 2002 | Active | |
