| Company | Timeline | Status | |
| Herne Limited Director • Director | 14 Nov 2018←6 Years→Current | Active | |
| Ngong Tea Holdings Limited Director • Farmer | 7 Dec 2015←9 Years→Current | Active | |
| George Williamson & Co. Limited Director • Farmer | 26 Apr 2013←12 Years→Current | Active | |
| Williamson Fine Teas Limited Director • Farmer | 1 Oct 2012←13 Years→Current | Active | |
| Rogam Farms Ltd Director • Director | 19 Apr 2006←19 Years→Current | Active | |
