| Company | Timeline | Status | |
| The Open School Trust Secretary • Accountant | 4 Jan 2000←3 Years→21 Jul 2003 | Active | |
| Yardstick Business Solutions Limited Secretary • Unreported | 9 Jul 1999←1 Year 11 Months→1 Jul 2001 | Active | |
| The Open School Trust Director • Accountant | 16 May 1997←6 Years→21 Jul 2003 | Active | |
| Kingsalton Limited Director • Accountant | 1 Aug 1991←33 Years→31 Jul 2024 | Active | |
