| Company | Timeline | Status | |
| Strathallan School Director • Professor | 7 Dec 2019←5 Years→Current | Active | |
| Esh Remedios Limited Director • Academic | 13 Sep 2012←12 Years→15 Apr 2025 | Dissolved | |
| Epona Technologies Limited Director • Academic | 7 Jun 2011←4 Years→1 Mar 2016 | Dissolved | |
| Setac-UK Director • Lecturer | 9 Sep 1999←6 Years→16 Dec 2005 | Dissolved | |
| A.U.U. Realisations Limited Director • Student | 1 Aug 1991←1 Year→31 Jul 1992 | Liquidation | |
