| Company | Timeline | Status | |
| Cassell Publishers Limited Director • Publisher | 10 Jul 1992←7 Years→20 Apr 2000 | Dissolved | |
| Cassell Educational Limited Director • Publisher | 10 Jul 1992←7 Years→30 Jun 2000 | Dissolved | |
| Blandford Publishing Limited Director • Publisher | 10 Jul 1992←7 Years→30 Jun 2000 | Dissolved | |
| Ward Lock Publishing Limited Director • Publisher | 10 Jul 1992←7 Years→1 Feb 2000 | Dissolved | |
| Mrs. Beeton Industries Limited Director • Publisher | 10 Jul 1992←7 Years→1 Feb 2000 | Dissolved | |
| Ward Lock Limited Director • Publisher | 10 Jul 1992←7 Years→1 Feb 2000 | Dissolved | |
| Hollydata Publishers Limited Director • Publisher | 30 Sep 1991←34 Years→Current | Active | |
