| Company | Timeline | Status | |
| Roundhouse (Nightingale Lane) Limited Director • None | 7 Jan 2015←3 Years→22 Aug 2018 | Active | |
The Isleworth Festival Director • Director | 4 May 2004←13 Years→31 Oct 2017 | Dissolved | |
| Roundhouse Work Limited Director • Architect | 10 Nov 2003←14 Years→22 Aug 2018 | Active | |
| The Dovetail Joint Limited Director • Architect | 1 Jul 1998←8 Months→18 Mar 1999 | Active | |
| Roundhouse Holdings Limited Director • Architect | 1 Jul 1998←20 Years→22 Aug 2018 | Active | |
| Roundhouse Design Limited Director • Architect | 5 Jun 1996←22 Years→22 Aug 2018 | Active | |
