| Company | Timeline | Status | |
| J Parrish Sports Design Ltd Director • Architect | 5 Sep 2016←9 Years→Current | Active | |
| Smartgeometry Limited Director • Architect | 14 Oct 2008←16 Years→2 Sep 2025 | Dissolved | |
| Ove Arup & Partners Limited Director • Architect | 22 Jun 2004←4 Years→31 Jul 2008 | Active | |
| Populous Limited Director • Architect | 16 Feb 1996←4 Years→11 Apr 2000 | Active | |
