| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| Metech Limited | 02636569 | 12/08/1991 | Dissolved |
| THERMAL EFFICIENCY SERVICES LIMITED | 04206225 | 01/05/2007 | Strike Off |
| THERMAL EFFICIENCY SERVICES LIMITED | 04206225 | 26/04/2001 | Strike Off |
| Technical & Energy Services Ltd | 03423164 | 22/08/1997 | Dissolved |
| Technical Electronic Services Ltd | 03707373 | 04/02/1999 | Dissolved |
| Webb Enterprises Ltd | 03311860 | 25/02/1998 | Dissolved |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| D.C.I. POWER LIMITED | 01385922 | 18/08/1991 | 25/05/1995 | Silver |
| District Heating Maintenance & Installations Ltd | 01789489 | 29/12/1991 | 28/07/1993 | Dissolved |