| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| MACPAC (BREDBURY) LIMITED | 01070436 | 03/12/2015 | Silver |
| MUST HAVE SECURITY LIMITED | 05184690 | 14/03/2005 | Dissolved |
| NEWTON PARK DEVELOPMENTS LIMITED | 05940056 | 19/09/2006 | Amber |
| OLIVER HOUSE MANAGEMENT CO. LTD | 05038273 | 05/12/2009 | Bronze |
| TPK21 LIMITED | 11921100 | 02/04/2019 | One Red Flag |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| AMEC NUCLEAR OVERSEAS LIMITED | 04037762 | 15/08/2000 | 27/01/2005 | Dissolved |
| FAST REACTOR TECHNOLOGY LIMITED | 01853864 | 11/05/1998 | 27/01/2005 | Not Trading |
| HEMPNAN LIMITED | 02295758 | 14/05/1991 | 10/08/1996 | Bronze |
| JACOBS CLEAN ENERGY INTERNATIONAL LIMITED | 03260477 | 11/05/1998 | 27/01/2005 | Gold |
| JACOBS CLEAN ENERGY LIMITED | 01120437 | 11/05/1998 | 27/01/2005 | Silver |
| NATIONAL NUCLEAR CORPORATION LIMITED | 02290928 | 11/05/1998 | 27/01/2005 | Amber |
| Occlude Ltd | 00951101 | 11/05/1998 | 27/01/2005 | Dissolved |
| Octennial Ltd | 00940426 | 11/05/1998 | 27/01/2005 | Dissolved |
| Octuple Ltd | 00866544 | 11/05/1998 | 27/01/2005 | Dissolved |
| Oculist Ltd | 01120440 | 11/05/1998 | 27/01/2005 | Dissolved |
| PWR POWER PROJECTS LIMITED | 02281663 | 11/05/1991 | 16/08/1996 | Silver |
| PWR POWER PROJECTS LIMITED | 02281663 | 01/10/1994 | 03/08/1996 | Silver |
| STATS-NNC LIMITED | 04339062 | 22/02/2002 | 27/01/2005 | Dissolved |
| Siemens Westinghouse Power Ltd | 02684886 | 29/05/1995 | 04/08/1995 | Dissolved |
| Solutions-Nnc Ltd | 01691539 | 11/05/1998 | 27/01/2005 | Dissolved |
| TECHNICA-NNC LIMITED | SC235856 | 05/11/2002 | 27/01/2005 | Dissolved |
| WOOD FINANCE UK LIMITED | 03725076 | 06/09/1999 | 27/01/2005 | Gold |