| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| Hall,John F,Ltd | 00378131 | 17/10/2000 | Dissolved |
| MARK COBB INSTALLATIONS LTD | 01270719 | 17/10/2000 | Dissolved |
| PANDELCO LIMITED | 01767620 | 14/01/2008 | Dissolved |
| SCENERGY LIMITED | 07388865 | 04/11/2015 | Dissolved |
| W T PARKER PROPERTIES LIMITED | 08584271 | 25/06/2013 | Dissolved |
| W. T. PARKER (EASTERN) LIMITED | 01440794 | 04/02/2008 | Dissolved |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| BURTON TRAINING ORGANISATION LIMITED | 03043197 | 31/05/2002 | 19/07/2011 | Silver |
| EJ MUSK PROCESS SERVICES (SWADLINCOTE) LTD | 02183496 | 11/01/2008 | 28/02/2020 | Bronze |
| ELECTRICAL CONTRACTORS ASSOCIATION LIMITED(THE) | 00143669 | 10/05/2012 | 06/09/2022 | Silver |
| PANDELCO LIMITED | 01767620 | 28/10/2005 | 29/08/2006 | Dissolved |
| W. T. PARKER (ELECTRICAL) LIMITED | 01270584 | 25/05/2004 | 18/06/2024 | Not Trading |
| W.T. PARKER PENSION TRUST LIMITED | 01936141 | 08/01/2007 | 31/05/2024 | Not Trading |