| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| 5 Valleys Radio (Stroud) Ltd | 03296552 | 08/04/2008 | Dissolved |
| ASSAYMETRICS LIMITED | 05227227 | 11/12/2009 | Dissolved |
| BOXARR LIMITED | 04873279 | 06/04/2023 | One Red Flag |
| County Sound Radio Ltd | 03086237 | 08/04/2008 | Dissolved |
| County Sound Radio Network Ltd | 03167918 | 08/04/2008 | Dissolved |
| NU NANO LTD | 07767528 | 19/01/2021 | Amber |
| Net-Additions Ltd | 05097569 | 08/04/2008 | Dissolved |
| Net-Leads Ltd | 05284727 | 08/04/2008 | Dissolved |
| Norwich Broadcasting Ltd | 02895317 | 08/04/2008 | Dissolved |
| OXFORD INSTRUMENTS PENSION TRUSTEE LIMITED | 03180361 | 31/03/2006 | Not Trading |
| PIRATE RADIO GROUP LIMITED | 03193011 | 08/04/2008 | Dissolved |
| PIRATE RADIO LIMITED | 03182928 | 08/04/2008 | Dissolved |
| PIRATE TELEVISION LIMITED | 03189120 | 08/04/2008 | Dissolved |
| ROGER HUMM LIMITED | 06278013 | 16/06/2007 | Silver |
| Star Media Group Ltd | 04353237 | 08/04/2008 | Dissolved |
| Star Radio Group Ltd | 04353227 | 08/04/2008 | Dissolved |
| Star Radio Network Ltd | 04353156 | 08/04/2008 | Dissolved |
| Surrey & North East Hampshire Radio Ltd | 02950086 | 08/04/2008 | Dissolved |
| Today Fm Ltd | 03894651 | 08/04/2008 | Dissolved |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| ALPHA BROADCASTING LIMITED | 02997080 | 29/05/2009 | 31/01/2011 | Strike Off |
| ARKEX LIMITED | 04255000 | 28/09/2005 | 16/12/2005 | Dissolved |
| BAUER RADIO (BCR) LIMITED | 03360681 | 08/04/2008 | 02/03/2009 | Dissolved |
| BRIDLINGTON RADIO LIMITED | 03677634 | 29/05/2009 | 31/01/2011 | Dissolved |
| CAMBRIDGE RADIO LIMITED | 03178676 | 08/04/2008 | 18/04/2009 | Insolvent |
| COMMUNITY ADS ONLINE LIMITED | 05521126 | 08/04/2008 | 18/04/2009 | Dissolved |
| COUNTY SOUND LIMITED | 03087722 | 08/04/2008 | 18/04/2009 | Dissolved |
| DURHAM FM LIMITED | 03838404 | 14/07/2009 | 31/01/2011 | Dissolved |
| EAGLE RADIO LIMITED | 02846346 | 08/04/2008 | 17/04/2009 | Dissolved |
| G-VOLUTION LTD | 05638299 | 19/12/2011 | 27/08/2013 | Amber |
| HAYDALE GRAPHENE INDUSTRIES PLC | 07228939 | 28/01/2014 | 09/06/2020 | Amber |
| ITS MY MARKET LIMITED | 03854364 | 08/04/2008 | 18/04/2009 | Dissolved |
| KLFM LIMITED | 03851781 | 08/04/2008 | 18/04/2009 | Dissolved |
| MINSTER SOUND RADIO (YORK) LIMITED | 03092759 | 29/05/2009 | 31/01/2011 | Dissolved |
| MINSTER SOUND RADIO LIMITED | 02602667 | 29/05/2009 | 31/01/2011 | Dissolved |
| MIX 107 FM LIMITED | 02649398 | 29/05/2009 | 31/01/2011 | Dissolved |
| MIX 96 LIMITED | 02747321 | 29/05/2009 | 31/01/2011 | Dissolved |
| NANOSIGHT LIMITED | 04599525 | 16/12/2010 | 27/09/2013 | Not Trading |
| NORTH GLOUCESTERSHIRE RADIO LIMITED | 02725728 | 08/04/2008 | 01/09/2008 | Dissolved |
| NORTHALLERTON FM LIMITED | 04174134 | 29/05/2009 | 31/01/2011 | Dissolved |
| OBS MEDICAL LIMITED | 03955861 | 19/05/2000 | 22/05/2006 | One Red Flag |
| OMASS THERAPEUTICS LIMITED | 10028228 | 26/02/2016 | 31/03/2018 | Amber |
| OXFORD DIFFRACTION LIMITED | 04020656 | 30/03/2001 | 08/03/2007 | Dissolved |
| OXFORD HIGHQ LTD | 11002764 | 09/10/2017 | 14/06/2018 | Insolvent |
| OXFORD INSTRUMENTS MOLECULAR BIOTOOLS LIMITED | 05004981 | 07/06/2005 | 01/02/2007 | Not Trading |
| OXFORD NANOIMAGING LIMITED | 10023177 | 24/02/2016 | 06/06/2017 | Amber |
| PIRATE FM LIMITED | 02552870 | 08/04/2008 | 20/05/2009 | Dissolved |
| PLYMOUTH COMMERCIAL RADIO COMPANY LIMITED | 02909273 | 08/04/2008 | 18/04/2009 | Dissolved |
| QUADRANT MEDIA LIMITED | 05678156 | 26/06/2009 | 31/01/2011 | Dissolved |
| RADIO INVESTMENTS LTD. | 01038766 | 29/05/2009 | 31/01/2012 | Dissolved |
| RADIO SERVICES LIMITED | 02996187 | 29/05/2009 | 31/01/2011 | Dissolved |
| RENAISSANCE RADIO LIMITED | 05667968 | 29/05/2009 | 31/01/2011 | Dissolved |
| SAVE BUCKETS LIMITED | 03189927 | 08/04/2008 | 18/04/2009 | Dissolved |
| SPIRE FM LIMITED | 02597649 | 29/05/2009 | 31/01/2011 | Dissolved |
| SPIRIT FM LIMITED | 02889122 | 26/06/2009 | 31/01/2011 | Dissolved |
| SPIRIT OF OXFORDSHIRE RADIO LIMITED | 05769368 | 29/05/2009 | 31/01/2011 | Dissolved |
| STRAY FM LIMITED | 02774366 | 29/05/2009 | 31/01/2011 | Dissolved |
| SUN FM LIMITED | 02955400 | 29/05/2009 | 31/01/2011 | Gold |
| THE LOCAL RADIO COMPANY LIMITED | 04931007 | 19/05/2009 | 31/01/2011 | Dissolved |
| THE LOCAL RADIO COMPANY LIMITED | 04931007 | 19/05/2009 | 31/01/2011 | Dissolved |
| TLRC ENTERPRISES LIMITED | 05331818 | 29/05/2009 | 31/01/2011 | Dissolved |
| TRINITY FM LIMITED | 05256625 | 19/06/2009 | 31/01/2011 | Dissolved |
| TWO BOROUGHS RADIO LIMITED | 03704387 | 29/05/2009 | 31/01/2011 | Dissolved |
| UKRD GROUP (EBT) LIMITED | 02909275 | 08/04/2008 | 18/04/2009 | Dissolved |
| UKRD GROUP LIMITED | 02725453 | 08/04/2008 | 31/01/2011 | Dissolved |
| UKRD GROUP LIMITED | 02725453 | 12/07/2007 | 31/01/2011 | Dissolved |
| UKRD RADIO SERVICES LIMITED | 03564336 | 08/04/2008 | 18/04/2009 | Dissolved |
| UKRD SUPPORT AND DEVELOPMENT LIMITED | 03822076 | 08/04/2008 | 18/04/2009 | Dissolved |
| WEB GIFTS ONLINE LIMITED | 06031813 | 08/04/2008 | 19/06/2009 | Dissolved |
| WESSEX BROADCASTING LIMITED | 02773740 | 29/05/2009 | 31/01/2011 | Dissolved |
| WEST COUNTRY RADIO HOLDINGS LIMITED | 03109609 | 29/05/2009 | 31/01/2011 | Dissolved |
| WESTCOM MEDIA LIMITED | 03591977 | 08/04/2008 | 18/04/2009 | Dissolved |
| X-CEL F.M. LIMITED | 02553665 | 08/04/2008 | 17/04/2009 | Dissolved |
| YORKSHIRE COAST RADIO LIMITED | 02775583 | 29/05/2009 | 31/01/2011 | Dissolved |