| Company | Timeline | Status | |
| Shetland Heatwise Director • Divisional Manager | 11 Sep 1992←18 Years→8 Oct 2010 | Active | |
| Fair Isle Bird Observatory Trust (The) Director • Retired | 11 Mar 1989←33 Years→21 Jun 2022 | Active | |
| Fair Isle Bird Observatory Trust (The) Director • Unreported | 1 Jan 1970←52 Years→21 Jun 2022 | Active | |
