| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| Angel Fm Ltd | 04080788 | 01/01/2001 | Dissolved |
| Angel Fm Ltd | 04080788 | 01/01/2001 | Dissolved |
| Atlantic East Ltd | 03046923 | 20/06/1995 | Dissolved |
| Bandit Fm Ltd | 04122056 | 01/01/2001 | Dissolved |
| Bandit Fm Ltd | 04122056 | 01/01/2001 | Dissolved |
| Devonair Fm Ltd | 03960880 | 25/04/2001 | Dissolved |
| Devonair Fm Ltd | 03960880 | 01/01/2001 | Dissolved |
| Digital Independent Broadcasting Ltd | 03355240 | 01/01/2000 | Dissolved |
| Digital Independent Broadcasting Ltd | 03355240 | 17/04/1997 | Dissolved |
| Heritage Radio Ltd | 03311567 | 03/02/1997 | Dissolved |
| Heritage Radio Ltd | 03311567 | 03/02/1997 | Dissolved |
| Mega Fm Ltd | 03050603 | 20/06/1995 | Dissolved |
| North Boroughs Radio Ltd | 03717398 | 01/03/1999 | Dissolved |
| North Boroughs Radio Ltd | 03717398 | 01/03/1999 | Dissolved |
| Radio Action Ltd. | 02785083 | 01/02/1994 | Dissolved |
| Regatta Radio Ltd | 03544027 | 18/12/1998 | Dissolved |
| South Midlands Radio Ltd | 03035224 | 07/09/1995 | Dissolved |
| South Midlands Radio Ltd | 03035224 | 07/09/1995 | Dissolved |
| St David's Research Ltd | 02979619 | 17/10/1994 | Dissolved |
| St David's Research Ltd | 02979619 | 17/10/1994 | Dissolved |
| Triple M Ltd | 02976399 | 10/08/1995 | Dissolved |
| WITCHWOOD COLLECTION LTD. | 03021151 | 13/02/1995 | Bronze |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| MINSTER SOUND RADIO LIMITED | 02602667 | 11/06/1991 | 27/02/1992 | Dissolved |
| Thames Radio Ltd | 02858103 | 20/09/1995 | 20/08/2000 | Dissolved |
| The Quay Radio Ltd | 03080194 | 27/04/1998 | 12/11/1999 | Dissolved |
| WITCHWOOD MEDIA LIMITED | 04320046 | 09/11/2001 | 30/09/2003 | Dissolved |