| Company | Timeline | Status | |
| Whitefield Development Trust Director • Chartered Accountant | 20 Mar 1998←15 Years→20 Nov 2013 | Active | |
| Williamson Tea Holdings Ltd Director • Chartered Accountant | 1 Oct 1993←12 Years→22 Sep 2006 | Dissolved | |
| George Williamson & Co. Limited Director • Chartered Accountant | 13 Jun 1991←15 Years→18 Dec 2006 | Active | |
| Il Casale Limited Secretary • Unreported | 1 Jan 1970←28 Years→10 Nov 1998 | Dissolved | |
