| Company | Timeline | Status | |
| Ista Energy Solutions Limited Director • Director | 16 Jun 1999←13 Days→29 Jun 1999 | Active | |
| South East London Combined Heat And Power Limited Director • Managing Director | 11 Jul 1994←2 Years 5 Months→17 Dec 1996 | Active | |
| Switch2 Energy Limited Director • Managing Director | 30 Sep 1992←6 Years→29 Jun 1999 | Active | |
| The Association For Decentralised Energy Director • Managing Director | 29 Jun 1992←5 Years→24 Jun 1998 | Active | |
| Lingsouth Limited Director • Managing Director | 13 Dec 1991←9 Months→30 Sep 1992 | Active | |
