| Company | Timeline | Status | |
| Topcon (Great Britain) Medical Limited Secretary • Unreported | 23 May 2001←1 Year 12 Months→19 May 2003 | Active | |
Christiani & Nielsen Limited Secretary • Unreported | 6 Jun 2000←2 Months→16 Aug 2000 | Dissolved | |
Maple-Phoenix Limited Director • Accountant | 6 Oct 1998←15 Years→29 Jul 2014 | Dissolved | |
| YJL Limited Director • Chartered Accountant | 16 Mar 1992←6 Years→17 May 1998 | Active | |
| Walter Lilly & Co. Limited Secretary • Unreported | 16 Mar 1992←5 Years→21 Jul 1997 | Active | |
