| Company | Timeline | Status | |
| Cohen & Griffiths Limited Director • East India Merchant | 1 May 1995←3 Years→20 Jul 1998 | Dissolved | |
| European Schools In India Improvement Association(The) Director • Company Director | 29 Oct 1992←20 Years→16 Jul 2013 | Active | |
| Williamson Tea Holdings Ltd Director • East India Merchant | 11 Oct 1991←6 Years→20 Jul 1998 | Dissolved | |
| Williamson Fine Teas Limited Director • East India Merchant | 10 Oct 1991←3 Years→3 May 1995 | Active | |
| Borelli Tea Holdings Limited Director • East India Merchant | 10 Oct 1991←6 Years→20 Jul 1998 | Active | |
| George Williamson & Co. Limited Director • East India Merchant | 13 Jun 1991←7 Years→20 Jul 1998 | Active | |
