| Company | Timeline | Status | |
| Laurence Fitch Limited Director • Literary Agent | 31 Dec 1991←34 Years→Current | Active | |
| Film Rights Limited Director • Literary Agent | 24 May 1991←34 Years→Current | Active | |
| Laurence Fitch Limited Director • Unreported | 1 Jan 1970←56 Years→Current | Active | |
