| Company | Timeline | Status | |
| Bibliographic Data Services Limited Director • Publisher | 1 Feb 2006←7 Months→15 Sep 2006 | Active | |
| The International ISBN Agency Limited Director • Publisher | 13 Jan 2005←1 Year 9 Months→7 Nov 2006 | Active | |
| Book Industry Communication Limited Director • Publisher | 2 Jul 2003←3 Years→14 Nov 2006 | Active | |
