| Company | Timeline | Status | |
Cambridge Multimedia Limited Director • Communications Consultant | 15 Mar 1993←8 Years→31 Aug 2001 | Dissolved | |
| Cambridge Multimedia Group Limited Director • Communications Consultant | 26 Apr 1992←16 Years→19 Dec 2008 | Active | |
| Cambridge Information Limited Director • Communications Consultant | 1 Jan 1970←35 Years→11 Apr 2005 | Dissolved | |
