| Company | Timeline | Status | |
| Artist Rooms Foundation Director • Unreported | 5 Jul 2013←12 Years→Current | Active | |
| James Hambro & Company Limited Director • Unreported | 9 Oct 2012←13 Years→Current | Active | |
| James Hambro & Partners LLP Non-designated LLP Member • Unreported | 9 Oct 2012←13 Years→Current | Active | |
Calkin,Pattinson & Co.Limited Director • Managing Director | 5 Feb 1992←22 Years→17 Mar 2014 | Dissolved | |
