| Company | Timeline | Status | |
| British Energy Generation (UK) Limited Secretary • Unreported | 1 Apr 1989←12 Months→30 Mar 1990 | Dissolved | |
| Scottish Power UK Plc Secretary • Unreported | 1 Apr 1989←12 Months→30 Mar 1990 | Active | |
| Sse Plc Secretary • Unreported | 1 Apr 1989←12 Months→30 Mar 1990 | Active | |
