| Company | Timeline | Status | |
| Weather Stream Limited Director • Non Executive Director | 21 Sep 2021←4 Years→Current | Active | |
| QMC Instruments Limited Director • Physicist | 10 Aug 1991←34 Years→Current | Active | |
| HTTP:// Limited Director • Physicist | 2 Jun 1991←34 Years→Current | Active | |
| Churchwood Trust Limited Director • Physicist | 2 Jun 1991←34 Years→Current | Active | |
| Thomas Keating Limited Director • Physicist | 2 Jun 1991←34 Years→Current | Active | |
