| Company | Timeline | Status | |
| The Wildlife Trusts Wales Ltd Director • Retired | 14 Mar 1995←6 Years→4 Apr 2001 | Dissolved | |
| Bardsey Island Trust Limited(The) Director • Retired University Lecturer | 31 Jul 1993←1 Year 7 Months→25 Mar 1995 | Active | |
| Enfys Ecology Limited Director • Retired University Lectures | 29 Aug 1991←12 Years→12 Aug 2004 | Active | |
| North Wales Wildlife Trust Director • Retired University Lecturer | 8 May 1991←12 Years→29 Mar 2004 | Active | |
