| Company | Timeline | Status | |
| The Beth Chatto Gardens Limited Director • Horticulturalist | 24 Dec 1990←8 Years→20 Sep 1999 | Active | |
| Unusual Plants Limited Director • Horticulturalist | 24 Dec 1990←8 Years→20 Sep 1999 | Active | |
| Unusual Plants Limited Director • Unreported | 1 Jan 1970←29 Years→20 Sep 1999 | Active | |
