| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| CLARK & CLARK PROPERTY HOLDINGS LIMITED | 12112791 | 19/07/2019 | Dissolved |
| CLARK & CLARK PROPERTY MANAGEMENT LIMITED | 12112745 | 19/07/2019 | Dissolved |
| CWC EVENT SOLUTIONS LIMITED | 12112770 | 19/07/2019 | Dissolved |
| CWC PCO SOLUTIONS LIMITED | 12112849 | 19/07/2019 | Dissolved |
| CWC SCHOOL FOR ENERGY LIMITED | 03689376 | 01/12/2019 | Dissolved |
| GLOBAL FUTURE ENERGY LIMITED | 11953768 | 18/04/2019 | Dissolved |
| WORLD DEFENCE GROUP LIMITED | 08092557 | 01/06/2012 | Dissolved |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| CWC SCHOOL FOR ENERGY LIMITED | 03689376 | 01/09/2003 | 19/06/2013 | Dissolved |
| DMG CARBON GROUP LIMITED | 03689940 | 01/09/2003 | 19/06/2013 | Dissolved |
| DMG CARBON GROUP LIMITED | 03689940 | 01/04/2005 | 09/04/2020 | Dissolved |
| DMG CARBON HOLDINGS LIMITED | 12112820 | 19/07/2019 | 09/04/2020 | Dissolved |
| DMG EVENTS (CONFERENCES) LIMITED | 03410466 | 02/09/2003 | 14/02/2013 | Silver |
| DMG EVENTS (CONFERENCES) LIMITED | 03410466 | 20/02/2006 | 09/04/2020 | Silver |
| ELITE SAUDI CAREERS LIMITED | 06976015 | 04/08/2009 | 09/12/2011 | Dissolved |
| SUSTAINABLE ENERGY CONFERENCES LIMITED | 12157497 | 15/08/2019 | 08/05/2024 | Gold |