| Company | Timeline | Status | |
| Sidell Architects Limited Director • Architect | 10 Oct 2016←9 Years→Current | Active | |
| Sidell Gibson Limited Director • Architect | 9 Oct 2013←2 Years 7 Months→31 May 2016 | Active | |
Crouch Butler Savage Limited Director • Architect | 8 Jun 2009←5 Years→12 May 2015 | Dissolved | |
Sidell Gibson Partnership LLP Designated LLP Member • Unreported | 18 Jun 2001←18 Years→25 Sep 2019 | Dissolved | |
