| Company | Timeline | Status | |
Petersham Publishing Limited Director • Publisher | 20 Sep 2004←10 Years→19 Mar 2015 | Dissolved | |
Kogan Page Communications Limited Director • Publisher | 13 Dec 2001←4 Years→30 May 2006 | Dissolved | |
| KP Sales Limited Director • Unreported | 1 Jan 1970←55 Years→Current | Active | |
