| Company | Timeline | Status | |
| Chelwood Vachery Residents Management Limited Director • Consulting Engineer | 30 Jun 2021←1 Year 10 Months→29 Apr 2023 | Active | |
Still Lane Limited Director • Engineer | 22 Mar 2017←1 Year 3 Months→26 Jun 2018 | Dissolved | |
Charterhouse Energy Limited Director • Engineer | 14 Oct 2005←2 Years 8 Months→10 Jun 2008 | Dissolved | |
| Chelwood Vachery Residents Management Limited Director • Engineer | 13 Jan 2002←10 Years→23 May 2012 | Active | |
| Charterhouse Property Developers Ltd Director • Consultant Engineer | 21 Aug 1996←29 Years→Current | Active | |
Charterhouse Building Services Ltd Director • Engineer | 28 Mar 1995←20 Years→10 Aug 2015 | Dissolved | |
