| Company | Timeline | Status | |
| The Publishers Association Limited Director • Unreported | 6 Apr 2000←5 Years→19 Apr 2005 | Active | |
Pearson Heinemann Limited Director • Publisher | 8 Jan 1996←8 Years→31 Mar 2004 | Dissolved | |
Reed Educational Publishing Limited Director • Publisher | 31 Jul 1991←1 Year 5 Months→31 Dec 1992 | Dissolved | |
