| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| MAGNOX SOLUTIONS LIMITED | 07545799 | 28/02/2011 | Dissolved |
| REACTOR SITE SOLUTIONS LIMITED | 06005193 | 15/06/2007 | Dissolved |
| SAFEGUARD INTERNATIONAL SOLUTIONS LIMITED | 06801691 | 26/01/2009 | Dissolved |
| UK WASTE MANAGEMENT SOLUTIONS LIMITED | 05980065 | 05/03/2009 | Dissolved |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| ATK ENERGY EU LIMITED | 05613520 | 06/11/2007 | 07/12/2017 | Bronze |
| ATK ENERGY EU SERVICES LIMITED | 05462826 | 09/11/2007 | 07/12/2017 | Dissolved |
| BANDANGA LIMITED | 00331705 | 01/11/1991 | 27/01/1993 | Silver |
| CARNIVAL NOVELTIES LIMITED | 00469584 | 01/11/1991 | 23/11/1992 | Dissolved |
| ELECTRICITY PENSIONS LIMITED | 02416242 | 15/07/2013 | 13/01/2015 | One Red Flag |
| ENERGY SALES AND TRADING LIMITED | 03857761 | 03/11/2004 | 01/02/2012 | Dissolved |
| Eau Zone Ltd | 01001605 | 01/11/1991 | 23/11/1992 | Dissolved |
| Fieldsman Drinks Ltd | 00644402 | 01/11/1991 | 23/11/1992 | Dissolved |
| Fieldsman Foods Ltd | 01116857 | 01/11/1991 | 23/11/1992 | Dissolved |
| Fieldsman Preserves Ltd | 02581695 | 08/10/1991 | 29/07/1992 | Dissolved |
| Freezway Frozen Food Centres Ltd | SC076704 | 01/11/1991 | 23/11/1992 | Dissolved |
| Freezway Plc | SC075428 | 01/11/1991 | 20/11/1992 | Dissolved |
| MAGNOX ELECTRIC LIMITED | 06005218 | 26/06/2007 | 01/01/2012 | Dissolved |
| MAGNOX SOUTH LIMITED | 06005213 | 25/07/2008 | 01/01/2012 | Dissolved |
| MERCHANT RETAIL GROUP LIMITED | 01465195 | 27/09/1992 | 23/11/1992 | Silver |
| NORMANS GROUP LIMITED | 01366060 | 01/11/1991 | 23/11/1992 | Dissolved |
| NUCLEAR RESTORATION SERVICES LIMITED | 02264251 | 01/02/2013 | 01/09/2014 | Amber |
| Party Box Limited | 02600714 | 01/11/1991 | 23/11/1992 | Dissolved |
| Purbeck Ceramics Ltd | 01094938 | 01/11/1991 | 23/11/1992 | Dissolved |
| Purbeck Group Ltd | 00747593 | 01/11/1991 | 23/11/1992 | Dissolved |
| Purbeck Group Ltd | 00747593 | 28/09/1991 | 23/11/1992 | Dissolved |
| REACTOR SITE SOLUTIONS LIMITED | 06005193 | 26/06/2007 | 03/09/2007 | Dissolved |
| THE PERFUME SHOP LIMITED | 02699577 | 15/05/1992 | 23/11/1992 | Silver |
| Wallis Frozen Foods Ltd | 01498786 | 09/02/1992 | 23/11/1992 | Dissolved |