| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| Controlled Explosives Group Ltd | 02276222 | 06/11/2001 | Dissolved |
| DIVESTITURE LIMITED | 08886559 | 11/02/2014 | One Red Flag |
| SEMCO-UK PLANT LIMITED | 10845418 | 30/06/2017 | Dissolved |
| ST BEDE CAPITAL LTD | 09148947 | 28/07/2014 | Dissolved |
| Steady Ready Ltd | 05548304 | 02/09/2005 | Dissolved |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| ARCHIVE RECRUITMENT LIMITED | 10845999 | 03/07/2017 | 10/09/2021 | Dissolved |
| CDG (REALISATIONS) LIMITED | 01654145 | 10/11/1998 | 09/02/2006 | One Red Flag |
| CONTROLLED ASBESTOS REMOVAL LIMITED | 04340465 | 14/12/2001 | 01/08/2006 | Dissolved |
| CONTROLLED DECOMMISSIONING LIMITED | 04584008 | 19/11/2002 | 01/08/2006 | Dissolved |
| CONTROLLED GROUP LIMITED | 03602717 | 23/09/2005 | 01/08/2006 | Dissolved |
| CONTROLLED REMEDIATION LIMITED | 04583997 | 19/11/2002 | 01/08/2006 | Dissolved |
| DDM DISMANTLING LIMITED | 10301186 | 28/07/2016 | 13/01/2021 | One Red Flag |
| EDS GROUP HOLDINGS LIMITED | 06260224 | 18/06/2010 | 14/11/2013 | Dissolved |
| EDS PLANT SOLUTIONS LIMITED | 06548723 | 06/06/2008 | 14/11/2013 | Dissolved |
| EURO DISMANTLING SERVICES LTD. | 02917688 | 12/12/2007 | 14/11/2013 | Dissolved |
| GRAPHITE FACILITIES MANAGEMENT LIMITED | 11946710 | 15/04/2019 | 20/07/2019 | Insolvent |
| HAROLD (UK) LIMITED | 05863649 | 15/11/2013 | 12/10/2022 | Bronze |
| ORACLE SAFETY CONSULTANTS LIMITED | 04518275 | 28/08/2002 | 01/08/2006 | Dissolved |
| REPLENISH LAND LIMITED | 10163709 | 05/05/2016 | 10/03/2022 | Dissolved |
| SEMCO-UK GROUP LIMITED | 08416975 | 03/08/2017 | 10/09/2021 | Insolvent |