| Company | Timeline | Status | |
| Ngong Tea Holdings Limited Secretary • Unreported | 17 May 2001←4 Years→15 Aug 2005 | Active | |
Williamson Flowers Limited Secretary • Unreported | 27 Jun 2000←5 Years→15 Aug 2005 | Dissolved | |
| Williamson Fine Teas Limited Secretary • Unreported | 10 Oct 1991←1 Year→22 Oct 1992 | Active | |
| Borelli Tea Holdings Limited Secretary • Unreported | 10 Oct 1991←13 Years→13 Jul 2005 | Active | |
| Williamson Tea Holdings Ltd Secretary • Unreported | 1 Jan 1970←39 Years→3 Jul 2009 | Dissolved | |
