| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| BGA AUDITS LIMITED | 00713383 | 26/06/1991 | Strike Off |
| Bdi Research Ltd | 02079055 | 01/06/2005 | Dissolved |
| Bem Ltd | 03061489 | 01/06/2005 | Dissolved |
| DEALTALK LIMITED | 05356725 | 01/06/2005 | Dissolved |
| Gfk Media Ltd | 04626991 | 02/01/2003 | Dissolved |
| Gfk Uk Tracking Ltd | 01612174 | 29/06/2001 | Dissolved |
| Gfk Uk Tracking Ltd | 01612174 | 29/06/2001 | Dissolved |
| Mediametrics Ltd | 02764699 | 01/06/2005 | Dissolved |
| NATIONAL OPINION POLLS LIMITED | 03710501 | 01/06/2005 | Dissolved |
| Nop Consumer Market Research Ltd | 01792623 | 01/06/2005 | Dissolved |
| Nop Market Research Ltd | 00801975 | 01/06/2005 | Dissolved |
| Nop Mystery Shopping Ltd | 01792624 | 01/06/2005 | Dissolved |
| Nop Surveymaster Ltd | 03849252 | 01/06/2005 | Dissolved |
| Nopw Ltd | 03718823 | 01/06/2005 | Dissolved |
| Numbers Data Processing Ltd | 02375599 | 01/06/2005 | Dissolved |
| Numbers Market Research Ltd | 01992719 | 01/06/2005 | Dissolved |
| Radio Research Ltd | 01802150 | 01/06/2005 | Dissolved |
| Romtec-G F K Ltd | 03406509 | 20/11/1997 | Dissolved |
| Romtec-G F K Ltd | 03406509 | 20/11/1997 | Dissolved |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| AFI INVESTMENTS | 03713691 | 01/06/2005 | 04/04/2012 | Dissolved |
| BARTERSTORE | 03452692 | 01/06/2005 | 04/04/2012 | Dissolved |
| GFK ENTERTAINMENT AND TRAVEL UK LIMITED | 03073596 | 01/07/2008 | 04/04/2012 | Dissolved |
| GFK FIELD INTERVIEWING SERVICES UK LIMITED | 03105571 | 01/06/2005 | 01/03/2010 | Dissolved |
| GFK SHARED SERVICES UK LIMITED | 03190837 | 01/06/2005 | 01/03/2010 | Dissolved |
| GFK TELEPHONE INTERVIEWING SERVICES UK LIMITED | 03180166 | 01/06/2005 | 01/03/2010 | Dissolved |
| GFK U.K. HOLDING LIMITED | 05419465 | 25/05/2005 | 03/04/2012 | Amber |
| GFK U.K. LIMITED | 02512551 | 01/06/2005 | 01/03/2010 | Silver |
| HARLEYFORD GOLF CLUB LIMITED | 03048048 | 26/07/2007 | 25/01/2008 | Dissolved |
| HARLEYFORD GOLF HOLDINGS LIMITED | 04245549 | 26/07/2007 | 25/01/2008 | Dissolved |
| INTERACTIVE RESEARCH LIMITED | 01792625 | 01/06/2005 | 01/03/2010 | Dissolved |
| IPSOS MYSTERY SHOPPING SERVICES UK LIMITED | 03190828 | 01/06/2005 | 01/03/2010 | Dissolved |
| IPSOS MYSTERY SHOPPING UK LIMITED | 05895847 | 22/08/2006 | 01/03/2010 | Dissolved |
| MARLOW GOLF CLUB LIMITED | 03105930 | 26/07/2007 | 25/01/2008 | Dissolved |
| MIL RESEARCH GROUP LIMITED | 00471008 | 01/06/2005 | 01/03/2010 | Dissolved |
| NOP WORLD LIMITED | 02379453 | 01/06/2005 | 01/03/2010 | Dissolved |
| NUMBERS SERVICES LIMITED | 01986188 | 01/06/2005 | 01/03/2010 | Dissolved |
| ROPERASW EUROPE LIMITED | 02945135 | 01/06/2005 | 21/02/2012 | Dissolved |
| SPARK FIELD SOLUTIONS LIMITED | 01425948 | 01/06/2005 | 01/03/2010 | Dissolved |