| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| COMMHOUSE 2014 LIMITED | SC248739 | 16/07/2014 | Dissolved |
| DEEBRIDGE ELECTRICAL ENGINEERS LIMITED | SC044123 | 09/06/2016 | Silver |
| Ecosse Manufacturing Services Ltd | SC187841 | 03/04/2000 | Dissolved |
| MCI ELECTROTECHNICS LIMITED | SC157005 | 15/03/2017 | Bronze |
| T D C (ABERDEEN) LIMITED | SC181456 | 25/02/1999 | Silver |
| T D C PARSONS PEEBLES LIMITED | SC663297 | 08/06/2020 | Bronze |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| Asset Associates Ltd | SC161259 | 01/05/1996 | 06/11/1997 | Dissolved |
| CO2URNIA Ltd | 03348846 | 03/07/1997 | 06/11/1997 | Dissolved |
| ELECO DOWDING & MILLS LIMITED | SC141655 | 18/12/1992 | 01/06/1995 | Not Trading |
| Eleco Electrical Engineers Ltd | SC092036 | 28/12/1988 | 01/06/1995 | Dissolved |
| Eleco Electrical Projects Ltd | SC141650 | 22/12/1992 | 01/06/1995 | Dissolved |
| Nu-Rock Ltd | SC160615 | 01/05/1996 | 06/11/1997 | Dissolved |
| Rowan Resource Ltd | 03121358 | 01/05/1996 | 06/11/1997 | Dissolved |
| TEST INSPECTION CONTRACTS LIMITED | SC229646 | 27/03/2002 | 05/08/2002 | Dissolved |
| Tdc Technical Services Ltd | SC193629 | 25/02/1999 | 30/11/2000 | Dissolved |