| Company | Timeline | Status | |
| Sophos Nominees Limited Director • Company Director | 4 Sep 2003←3 Years→8 Sep 2006 | Active | |
| Sophos Limited Director • Company Director | 15 Nov 1992←20 Years→17 Sep 2013 | Active | |
| Virus Bulletin Limited Director • Unreported | 1 Jan 1970←55 Years→Current | Active | |
