| Company | Timeline | Status | |
| Empowering Energy Solutions Limited Director • University Professor | 29 Sep 2022←2 Years 3 Months→7 Jan 2025 | Dissolved | |
| Tnei Services Limited Director • University Professor | 2 Aug 2004←2 Years 5 Months→9 Jan 2007 | Active | |
| Renewable UK Association Director • Lecturer | 25 Mar 1992←6 Years→2 Sep 1998 | Active | |
