| Company | Timeline | Status | |
| Thorndene Limited Director • Retired Managing Director | 16 Sep 2006←14 Years→12 Nov 2020 | Active | |
| The Thorndene Society Limited Director • Retired | 12 Dec 2005←20 Years→Current | Active | |
| The Thorndene Society Limited Secretary • Retired | 5 Oct 2004←6 Months→4 Apr 2005 | Active | |
| The Friars Yard Residents Association Limited Director • Retired | 18 Sep 2003←22 Years→Current | Active | |
| Thorndene Limited Secretary • Retired Managing Director | 5 May 2001←19 Years→12 Nov 2020 | Active | |
| Sirius (Korea) Limited Director • Managing Director | 10 Nov 1999←2 Years 2 Months→31 Jan 2002 | Active | |
| Lift And Escalator Industry Association Director • Chief Executive | 30 Sep 1999←2 Years 4 Months→7 Feb 2002 | Active | |
| Thorndene Limited Director • Managing Director | 21 Jul 1997←3 Years→4 Oct 2000 | Active | |
The Express Lift Company Limited Director • Managing Director | 2 Jun 1997←4 Years→31 Jan 2002 | Dissolved | |
Express Lifts (Overseas) Limited Director • Managing Director | 2 Jun 1997←4 Years→31 Jan 2002 | Dissolved | |
