| Company | Timeline | Status | |
| Lund Humphries Publishers Limited Director • Company Director | 14 Oct 1992←7 Years→23 Nov 1999 | Active | |
| Lionel Leventhal Limited Director • Co Director | 29 Dec 1991←34 Years→Current | Active | |
| Lionel Leventhal Limited Director • Unreported | 1 Jan 1970←56 Years→Current | Active | |
