| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| BLAST FOUNDATION | 07398503 | 06/10/2010 | Strike Off |
| IPSOS-LOGISTICS LIMITED | 00856239 | 30/06/2001 | Dissolved |
| RSL CAPIBUS LIMITED | 00989745 | 31/12/2002 | Dissolved |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| BRITISH MARKET RESEARCH BUREAU LIMITED | 02725173 | 15/05/1995 | 25/06/2001 | Dissolved |
| EUROPEAN MARKET RESEARCH BUREAU LIMITED | 01987373 | 15/05/1995 | 25/06/2001 | Dissolved |
| INTERNATIONAL MARKET RESEARCH BUREAU LIMITED | 01968488 | 15/05/1995 | 25/06/2001 | Dissolved |
| IPSOS ACCESS PANELS LIMITED | 03135248 | 17/12/2001 | 05/11/2013 | Dissolved |
| IPSOS EMEA HOLDINGS LTD | 04997072 | 21/10/2005 | 30/09/2018 | Bronze |
| IPSOS FOUNDATION | 09568658 | 28/05/2015 | 30/09/2018 | Silver |
| IPSOS INSIGHT LIMITED | 01493407 | 17/12/2001 | 05/11/2013 | Dissolved |
| IPSOS INTERACTIVE SERVICES LIMITED | 03903040 | 01/11/2002 | 09/11/2004 | Silver |
| IPSOS MORI UK LIMITED | 01640855 | 01/10/2001 | 30/09/2018 | Silver |
| IPSOS NOVACTION & VANTIS LIMITED | 02745318 | 13/12/2001 | 03/03/2014 | Dissolved |
| KANTAR MEDIA RESEARCH GROUP LIMITED | 03782890 | 04/08/1999 | 25/06/2001 | Dissolved |
| KANTAR MEDIA UK LTD | 00275304 | 02/01/1992 | 25/06/2001 | Silver |
| MARKET RESEARCH BUREAU GROUP LIMITED | 02674231 | 15/05/1995 | 25/06/2001 | Dissolved |
| MARKET RESEARCH BUREAU LIMITED | 02362109 | 15/05/1995 | 25/06/2001 | Dissolved |
| MARKET RESEARCH SOCIETY(THE) | 00518685 | 01/04/2013 | 31/03/2018 | Silver |
| MASS-OBSERVATION (UK) LIMITED | 02072018 | 15/05/1995 | 25/06/2001 | Dissolved |
| MEDIA RESEARCH CONSULTANCY LIMITED(THE) | 01474677 | 15/05/1995 | 25/06/2001 | Dissolved |
| MRB GROUP LIMITED | 01451838 | 23/02/1999 | 25/06/2001 | Dissolved |
| MRB INTERNATIONAL LIMITED | 00956578 | 15/05/1995 | 25/06/2001 | Dissolved |
| MRB RESEARCH GROUP LIMITED | 01968489 | 15/05/1995 | 25/06/2001 | Dissolved |
| MRB RESEARCH LIMITED | 01967066 | 15/05/1995 | 25/06/2001 | Dissolved |
| OPTITECH LIMITED | 03482221 | 31/03/1998 | 25/06/2001 | Dissolved |
| PADSTONES HOUSING | 04345857 | 21/05/2008 | 08/10/2015 | Dissolved |
| PILER LIMITED | 02020518 | 15/05/1995 | 25/06/2001 | Dissolved |
| PRICESEARCH LIMITED | 02663997 | 31/12/2002 | 03/11/2014 | Amber |
| RSMB LIMITED | 02173860 | 02/01/1998 | 31/05/2001 | Bronze |
| TEST RESEARCH LIMITED | 03017037 | 21/10/2005 | 05/11/2013 | Dissolved |
| THE QUALITATIVE WORKSHOP LIMITED | 02202759 | 15/05/1995 | 25/06/2001 | Dissolved |