| Company | Timeline | Status | |
| Gustafson Porter Bowman Ltd Director • Director | 15 Feb 2012←13 Years→Current | Active | |
| BGP Studio LLP Designated LLP Member • Unreported | 25 Nov 2011←13 Years→Current | Active | |
| Gustafson Porter + Bowman LLP Designated LLP Member • Unreported | 2 Nov 2011←14 Years→Current | Active | |
| Auden Place Community Nursery Director • Architect | 3 Nov 1995←1 Year 11 Months→2 Oct 1997 | Active | |
| John Lyall Architects Limited Director • Architect | 16 Feb 1994←5 Months→1 Aug 1994 | Dissolved | |
