| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| MACWHIRTER LIMITED | 00308052 | 01/01/1995 | Amber |
| Mid Glamorgan Training & Enterprise Council Ltd | 02443300 | 30/05/1996 | Dissolved |
| The Principality Fuel Co Ltd | 03827106 | 12/08/1999 | Dissolved |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| Caerphilly Transport Services Ltd | 02551626 | 01/01/1993 | 04/10/1993 | Dissolved |
| GOITRE TOWER ANTHRACITE LIMITED | 02984129 | 24/01/2008 | 02/02/2023 | Silver |
| GOITRE TOWER ANTHRACITE LIMITED | 02984129 | 23/12/1994 | 02/02/2023 | Silver |
| Oldway (Holdings) Ltd | 01075347 | 31/12/1991 | 19/12/1994 | Dissolved |
| TENOVUS CANCER CARE | 00943501 | 01/04/2003 | 10/03/2009 | Gold |
| TENOVUS CANCER INFORMATION CENTRE | 04176189 | 09/03/2001 | 31/03/2003 | Dissolved |
| TOWER COLLIERY LIMITED | 02997375 | 24/01/2008 | 02/02/2023 | One Red Flag |
| TOWER COLLIERY LIMITED | 02997375 | 23/12/1994 | 02/02/2023 | One Red Flag |
| TOWER ENERGY RESOURCES LIMITED | 03305744 | 24/01/2008 | 02/02/2023 | Not Trading |
| TOWER ENERGY RESOURCES LIMITED | 03305744 | 14/05/1997 | 02/02/2023 | Not Trading |
| TOWER REGENERATION LIMITED | 06995899 | 26/08/2009 | 02/02/2023 | One Red Flag |
| The Principality Fuel Co Ltd | 03827106 | 12/08/1999 | 17/08/2000 | Dissolved |
| WELSH DRAGON COAL LIMITED | 03169168 | 24/01/2008 | 02/02/2023 | Not Trading |
| WELSH DRAGON COAL LIMITED | 03169168 | 25/03/1996 | 02/02/2023 | Not Trading |