| Company | Timeline | Status | |
| Paul Holberton Publishing Ltd Director • Unreported | 30 Nov 2004←20 Years→Current | Active | |
| Paul Holberton Publishing Ltd Secretary • Unreported | 30 Nov 2004←20 Years→Current | Active | |
| Merrell Publishers Limited Director • Unreported | 4 Jan 1993←6 Years→13 Oct 1999 | Active | |
