| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| Big 107 Fm Ltd | 03266672 | 22/10/1996 | Dissolved |
| Black Fm (London) Ltd | 03667198 | 13/11/1998 | Dissolved |
| Black Fm Ltd | 03199192 | 15/05/1996 | Dissolved |
| Gainsleys Financial Services Ltd | 03432605 | 30/04/2000 | Dissolved |
| Gainsleys Financial Services Ltd | 03432605 | 11/09/1997 | Dissolved |
| L G N Financial Services (1990) Limited | 02322695 | 04/01/1992 | Dissolved |
| L G N Financial Services Ltd | 02946238 | 27/07/1994 | Dissolved |
| L G N Financial Services Ltd | 02946238 | 27/07/1994 | Dissolved |
| Lgn Associates Limited | 01718743 | 14/07/1991 | Dissolved |
| Lgn Associates Limited | 01718743 | 14/07/1991 | Dissolved |
| Media Arts Corporation Ltd | 04089802 | 13/10/2000 | Dissolved |
| North West London Broadcasting Ltd | 03321667 | 20/02/1997 | Dissolved |
| North West London Broadcasting Ltd | 03321667 | 10/03/1999 | Dissolved |
| Radio Ventures Ltd | 03259698 | 07/10/1996 | Dissolved |
| Spectrum International Fm Ltd | 02940741 | 06/07/1994 | Dissolved |
| Spectrum Radio Promotions Limited | 02842131 | 04/08/1993 | Dissolved |
| The Ranulf Association | 02064318 | 31/03/1992 | Dissolved |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| ACCOUNTANCY & TAXATION LIMITED | 03933509 | 07/07/2000 | 31/12/2000 | Dissolved |
| CHAUMONT LTD | 02967748 | 04/08/2000 | 20/09/2008 | Bronze |
| CLUB ASIA LONDON LIMITED | 04343161 | 12/04/2002 | 10/06/2005 | Dissolved |
| COUNTRY 1035 LIMITED | 02250037 | 24/01/1994 | 01/10/1992 | Dissolved |
| EXTERION MEDIA (UK) LIMITED | 02480440 | 13/03/1992 | 28/07/1998 | Not Trading |
| EXTERION MEDIA (UK) LIMITED | 02480440 | 13/03/1992 | 03/03/1997 | Not Trading |
| Exhibitions.Com Ltd | 03938891 | 01/11/2000 | 16/10/2002 | Dissolved |
| Idaya Ltd | 03593503 | 04/05/2000 | 24/04/2002 | Dissolved |
| KMFM WEST KENT LIMITED | 02977385 | 01/06/1995 | 30/09/1999 | Dissolved |
| Playscheme Management Ltd | 04325527 | 20/11/2001 | 13/08/2004 | Dissolved |
| SPECTRUM RADIO LIMITED | 02388187 | 05/01/2000 | 16/05/2005 | Insolvent |
| Softwarefirst.Com Plc | 03936578 | 24/02/2000 | 02/04/2003 | Dissolved |
| Softwarefirst.Com Plc | 03936578 | 24/02/2000 | 24/02/2000 | Dissolved |