| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| AJAX OIL & GAS LTD | 10507789 | 02/12/2016 | Dissolved |
| BOOKHAM ENERGY SERVICES LTD | 07879184 | 12/12/2011 | Amber |
| Bookham Energy Ltd | 04180142 | 15/03/2001 | Dissolved |
| KAELO LIMITED | 10007348 | 16/02/2016 | One Red Flag |
| KAELO MANUFACTURING LIMITED | 10007812 | 16/02/2016 | One Red Flag |
| KAELO STAND-ALONE LIMITED | 15914432 | 23/08/2024 | Amber |
| KAELO TECHNOLOGY LIMITED | 10007143 | 16/02/2016 | Bronze |
| KAEZEN LIMITED | 07151632 | 14/03/2016 | One Red Flag |
| Luxardo Ltd | 06576949 | 25/04/2008 | Dissolved |
| MADAGASCAR OIL (UK) LIMITED | 08857281 | 23/01/2014 | Dissolved |
| Regal Energy Ltd | 04768166 | 15/01/2007 | Dissolved |
| VE RESOURCES LIMITED | 06561882 | 02/06/2008 | Dissolved |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| ACORN NORTH SEA LIMITED | 04257334 | 19/12/2005 | 25/10/2006 | Dissolved |
| ACORN NORTH SEA LIMITED | 04257334 | 23/07/2001 | 05/11/2005 | Dissolved |
| ACORN OIL & GAS LIMITED | 04132465 | 10/02/2002 | 19/12/2005 | Dissolved |
| ACORN OIL & GAS LIMITED | 04132465 | 01/03/2001 | 05/11/2005 | Dissolved |
| AFRICAN MINERALS (UK) LIMITED | 03210063 | 18/10/2006 | 09/10/2007 | Dissolved |
| AFRICAN MINERALS LIMITED | 06216910 | 18/04/2007 | 09/10/2007 | Dissolved |
| Acorn Ginko Ltd | 05517714 | 25/07/2005 | 19/12/2005 | Dissolved |
| Acorn Ginko Ltd | 05517714 | 25/07/2005 | 04/11/2005 | Dissolved |
| African Iron Ore Ltd | 06124127 | 22/02/2007 | 09/10/2007 | Dissolved |
| CADOGAN ENERGY SOLUTIONS PLC | 05718406 | 03/11/2010 | 21/10/2011 | Gold |
| CADOGAN PETROLEUM HOLDINGS LIMITED | 05255092 | 03/11/2010 | 21/10/2011 | Silver |
| FAIRFIELD BETULA LIMITED | 04465204 | 20/06/2002 | 11/10/2006 | One Red Flag |
| FAIRFIELD BETULA LIMITED | 04465204 | 20/06/2002 | 11/10/2006 | One Red Flag |
| FAIRFIELD ENERGY HOLDINGS LIMITED | 05562502 | 13/09/2005 | 18/10/2006 | One Red Flag |
| FAIRFIELD ENERGY LIMITED | 05562373 | 13/09/2005 | 18/10/2006 | One Red Flag |
| FAIRFIELD FAGUS LIMITED | 05461823 | 24/05/2005 | 11/10/2006 | One Red Flag |
| FAIRFIELD FAGUS LIMITED | 05461823 | 24/05/2005 | 11/10/2006 | One Red Flag |
| INEOS CLIPPER SOUTH B LIMITED | 04649606 | 28/01/2003 | 11/10/2006 | Bronze |
| INEOS CLIPPER SOUTH B LIMITED | 04649606 | 28/01/2003 | 11/10/2006 | Bronze |
| INEOS CLIPPER SOUTH C LIMITED | 04967270 | 18/11/2003 | 11/10/2006 | Bronze |
| INEOS CLIPPER SOUTH C LIMITED | 04967270 | 18/11/2003 | 11/10/2006 | Bronze |
| QUADRANT HYDROCARBONS LIMITED | 05461821 | 24/05/2005 | 19/12/2005 | Dissolved |
| QUADRANT HYDROCARBONS LIMITED | 05461821 | 24/05/2005 | 04/11/2005 | Dissolved |
| RADLEY INVESTMENTS LIMITED | 06287407 | 03/11/2010 | 21/10/2011 | Dissolved |
| REGAL EGYPT LIMITED | 05153979 | 15/01/2007 | 18/01/2008 | Dissolved |
| REGAL GROUP SERVICES LIMITED | 05252958 | 15/01/2007 | 18/01/2008 | Dissolved |
| REGAL LIBERIA LIMITED | 05434246 | 15/01/2007 | 09/11/2007 | Strike Off |
| SEAMWELL INTERNATIONAL LIMITED | 06946968 | 31/01/2012 | 12/07/2013 | Insolvent |
| THE BRITISH HANDBALL ASSOCIATION | 02175919 | 14/07/2009 | 14/07/2015 | Silver |
| VANGUARD ENERGY (TEES) LIMITED | 07232213 | 22/04/2010 | 01/11/2010 | Dissolved |
| VANGUARD ENERGY LIMITED | 06453169 | 13/12/2007 | 01/11/2010 | Not Trading |
| VANGUARD ENERGY LIMITED | 06453169 | 13/12/2007 | 01/11/2010 | Not Trading |
| VANGUARD ENERGY SERVICES LIMITED | 06477387 | 18/01/2008 | 01/11/2010 | Dissolved |
| VANGUARD ENERGY SERVICES LIMITED | 06477387 | 18/01/2008 | 01/11/2010 | Dissolved |
| VE RESOURCES LIMITED | 06561882 | 02/06/2008 | 01/11/2010 | Dissolved |