| Company | Timeline | Status | |
| Sussex Square RTM Company Limited Director • Director  | 23 Apr 2013←12 Years→Current  | Active  | |
| London Philharmonic Orchestra Limited Director • Company Director  | 22 May 2012←1 Year 2 Months→11 Aug 2013  | Active  | |
| J.A.H.K. Limited Director • Company Director  | 20 Mar 1991←34 Years→Current  | Active  | |
| J.A.H.K. Limited Secretary • Company Director  | 20 Mar 1991←34 Years→Current  | Active  | |
| J.A. Kessler Limited Secretary • Company Director  | 20 Mar 1991←34 Years→Current  | Active  | |
| J.A. Kessler Limited Director • Unreported  | 1 Jan 1970←55 Years→Current  | Active  | |
