| Company | Timeline | Status | |
| Cordell Marks Ltd Director • Surveyor | 23 Oct 2013←12 Years→Current | Active | |
| 174 New North Road Management Company Limited Director • Unreported | 11 Dec 2002←22 Years→Current | Active | |
| The Survey Shop Limited Director • Chartered Surveyor | 31 Dec 1991←33 Years→Current | Active | |
| The Survey Shop Limited Secretary • Unreported | 31 Dec 1991←33 Years→Current | Active | |
| Oak Lodge Management Company Limited Secretary • Unreported | 19 Aug 1991←7 Years→10 Sep 1998 | Active | |
