| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| Aei (Europe) Ltd | 02657720 | 25/10/1992 | Dissolved |
| Environmental & Thermal Engineering Ltd | 01474573 | 29/12/1992 | Dissolved |
| Trinstone Ltd | 03748170 | 08/10/1999 | Dissolved |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| AMBIENT EFFICIENCY LIMITED | 01371177 | 31/12/1991 | 29/03/1996 | Dissolved |
| Acoustics & Envirometrics Ltd | 01147395 | 31/12/1991 | 30/06/2000 | Dissolved |
| Bds Radiators Ltd | 02917092 | 08/04/1994 | 29/03/1996 | Dissolved |
| E T E Ltd | 02887243 | 24/01/1994 | 07/01/2000 | Dissolved |
| New Brand Radiators Ltd | 01749836 | 01/10/1992 | 30/06/2000 | Dissolved |
| New Brand Radiators Ltd | 01749836 | 01/10/1992 | 29/03/1996 | Dissolved |
| OPERATIONAL (UK) LIMITED | 02589285 | 07/03/1991 | 07/01/2000 | Gold |