| Company | Timeline | Status | |
| Mizulu Limited Director • Director | 1 Apr 2019←4 Years→1 Mar 2024 | Dissolved | |
| The International Camellia Society (UK) Director • Writer/ Horticultural Consultant | 5 Apr 2014←11 Years→Current | Active | |
| The International Camellia Society (UK) Director • Writer/ Horticultural Consultant | 5 Apr 2014←10 Years→30 May 2024 | Active | |
Southern Fruits Ltd Director • Writer/lecturer | 4 Oct 1995←16 Years→1 May 2012 | Dissolved | |
James Trehane & Sons Limited Director • Company Director | 31 Dec 1991←2 Years 11 Months→9 Dec 1994 | Dissolved | |
James Trehane & Sons Limited Secretary • Unreported | 31 Dec 1991←2 Years 11 Months→9 Dec 1994 | Dissolved | |
