| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| 105.2 Fm Sfx Ltd | 03289576 | 21/03/1997 | Dissolved |
| 4 Digital Group Ltd | 06069512 | 05/07/2007 | Dissolved |
| DMG RADIO (NORTH WEST) LIMITED | 03378195 | 24/07/1997 | Dissolved |
| Dmg Radio (Leicester) Ltd | 03289582 | 09/01/1997 | Dissolved |
| Dmg Radio (Solent) Ltd | 03309113 | 21/03/1997 | Dissolved |
| HALLCO 1468 LIMITED | 06167726 | 01/05/2007 | Dissolved |
| HARMSWORTH MEDIA TURKEY LIMITED | 03053943 | 13/07/1995 | Dissolved |
| HR LICENCES LIMITED | 03135459 | 21/12/1995 | Dissolved |
| Harmsworth Media Turkey (Holdings) Ltd | 03053950 | 13/07/1995 | Dissolved |
| Hear Radio (Yorkshire) Ltd | 03101805 | 21/12/1995 | Dissolved |
| Hear Radio Ltd | 03101809 | 19/02/1996 | Dissolved |
| London Light Radio Ltd | 02916858 | 08/06/1994 | Dissolved |
| NEWSTALK UK LIMITED | 02875343 | 21/02/1994 | Dissolved |
| North East Wireless Ltd | 03507340 | 04/02/1998 | Dissolved |
| Regional Radio North West Ltd | 03378190 | 20/08/1997 | Dissolved |
| SOLENT FM LIMITED | 03160911 | 31/01/1997 | Dissolved |
| SWITCHDIGITAL (LONDON) LIMITED | 03729042 | 07/12/2000 | Silver |
| SWITCHDIGITAL (SCOTLAND) LIMITED | SC200916 | 07/12/2000 | Amber |
| THE DIGITAL RADIO GROUP (LONDON) LIMITED | 03903499 | 28/01/2002 | Silver |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| 2 SAVE ENERGY LIMITED | 05626628 | 15/05/2007 | 06/02/2012 | Dissolved |
| CENTRAL REGION NEWS RADIO LIMITED | 03510017 | 05/03/1998 | 25/09/2002 | Dissolved |
| D M G Radio Investments U K Ltd | 03146173 | 04/02/1997 | 08/09/2000 | Dissolved |
| DAILY MAIL AND GENERAL INVESTMENTS LIMITED | 02251116 | 08/12/1997 | 06/01/1999 | Bronze |
| DMGRH FINANCE LIMITED | 03191181 | 19/06/1997 | 08/09/2000 | Dissolved |
| Dmg Finance | 03722643 | 27/04/1999 | 23/11/2000 | Dissolved |
| Dmg Radio (Sweden) Ltd | 03138989 | 15/04/1996 | 08/09/2000 | Dissolved |
| EAST ANGLIAN RADIO LIMITED | 01768405 | 10/03/1995 | 31/05/1996 | Not Trading |
| ESSEX RADIO LIMITED | 00670633 | 01/10/1995 | 07/07/2000 | Silver |
| EXFOM LIMITED | 03135464 | 13/02/1996 | 24/08/2000 | Dissolved |
| EXTERION MEDIA (UK) LIMITED | 02480440 | 28/07/1998 | 07/07/2000 | Not Trading |
| GWR (LOCAL AREA) LIMITED | 03427545 | 18/09/1997 | 07/07/2000 | Not Trading |
| GWR RADIO (HUNGARY) LIMITED | 03160916 | 19/06/1997 | 07/07/2000 | Dissolved |
| GWR RADIO (SOUTH EAST) LIMITED | 03825017 | 13/08/1999 | 07/07/2000 | Silver |
| GWR RADIO LIMITED | 01027407 | 01/10/1995 | 07/07/2000 | Not Trading |
| INDEPENDENT MEDIA DISTRIBUTION LIMITED | 02127174 | 10/06/2009 | 20/05/2011 | Dissolved |
| KENT & SUSSEX RADIO INVESTORS LIMITED | 03293610 | 16/06/1999 | 07/07/2000 | Dissolved |
| KISS 105 - 108 LIMITED | 03191851 | 23/10/1996 | 25/09/2002 | Dissolved |
| KMFM MEDWAY LIMITED | 02936476 | 13/04/2000 | 08/09/2000 | Dissolved |
| KMFM WEST KENT LIMITED | 02977385 | 17/08/1998 | 07/07/2000 | Dissolved |
| LBC RADIO LIMITED | 03143623 | 09/02/1996 | 25/09/2002 | One Red Flag |
| London Broadcasting Co (Holdings) Ltd | 01858287 | 14/06/1991 | 07/06/1993 | Dissolved |
| London Broadcasting Co Ltd | 00991002 | 14/06/1992 | 07/06/1993 | Dissolved |
| MXR LONDON LIMITED | 03671386 | 05/05/1999 | 07/07/2000 | Dissolved |
| Media Zeros Plc | 04039086 | 26/07/2000 | 02/09/2002 | Dissolved |
| NORTH EAST NEWS RADIO LIMITED | 03471725 | 04/12/1997 | 25/09/2002 | Dissolved |
| NORTH WEST NEWS RADIO LIMITED | 03390095 | 15/08/1997 | 25/09/2002 | Dissolved |
| RADIO MERCURY LIMITED | 01717321 | 08/02/1999 | 07/07/2000 | Silver |
| S.W. Radio Ltd | 03787007 | 10/06/1999 | 07/08/1999 | Dissolved |
| SUTTON COURT LTD | 01918334 | 14/03/2000 | 12/05/2017 | Gold |
| Swedish Radio Investments Ltd | 03169434 | 15/04/1996 | 08/09/2000 | Dissolved |
| THE CARPHONE WAREHOUSE (DIGITAL) LIMITED | 03966947 | 08/01/2002 | 25/04/2008 | Silver |
| THE MEDIA AND INCOME TRUST PLC | 02389894 | 30/06/1995 | 02/09/2002 | Dissolved |
| Vibe East Midlands Ltd | 03787001 | 25/02/2002 | 25/09/2002 | Dissolved |
| WEST & SOUTH YORKSHIRE RADIO LIMITED | 03787010 | 10/06/1999 | 07/07/2000 | Dissolved |
| WEST MIDLANDS RADIO LIMITED | 03787005 | 10/06/1999 | 07/07/2000 | Dissolved |