| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| ALPHA DEVELOPMENT (EUROPE) LTD | 13018985 | 13/03/2023 | One Red Flag |
| ALPHA DEVELOPMENT GROUP LTD | 13007389 | 13/03/2023 | Amber |
| ALPHA DEVELOPMENT PARTNERSHIP LTD | 04712592 | 13/03/2023 | Amber |
| APEX RUNNING EVENTS LIMITED | 12536738 | 31/03/2022 | Dissolved |
| Mediametrics Ltd | 02764699 | 01/11/2002 | Dissolved |
| Nop Consumer Market Research Ltd | 01792623 | 01/11/2002 | Dissolved |
| Nop Mystery Shopping Ltd | 01792624 | 01/11/2002 | Dissolved |
| Nop Surveymaster Ltd | 03849252 | 01/11/2002 | Dissolved |
| Numbers Data Processing Ltd | 02375599 | 01/11/2002 | Dissolved |
| Numbers Market Research Ltd | 01992719 | 01/11/2002 | Dissolved |
| OC VOR LTD | 08692453 | 09/03/2017 | Dissolved |
| Radio Research Ltd | 01802150 | 01/11/2002 | Dissolved |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| Bdi Research Ltd | 02079055 | 01/11/2002 | 23/07/2008 | Dissolved |
| Bem Ltd | 03061489 | 01/11/2002 | 23/07/2008 | Dissolved |
| GFK FIELD INTERVIEWING SERVICES UK LIMITED | 03105571 | 01/11/2002 | 23/07/2008 | Dissolved |
| GFK MARTIN HAMBLIN LIMITED | 00905143 | 01/10/2005 | 29/09/2006 | Dissolved |
| GFK MARTIN HAMBLIN LIMITED | 00905143 | 01/10/2005 | 23/07/2008 | Dissolved |
| GFK SHARED SERVICES UK LIMITED | 03190837 | 01/11/2002 | 23/07/2008 | Dissolved |
| GFK TELEPHONE INTERVIEWING SERVICES UK LIMITED | 03180166 | 01/11/2002 | 23/07/2008 | Dissolved |
| GFK U.K. LIMITED | 02512551 | 22/12/2004 | 23/07/2008 | Bronze |
| Gfk Great Britain Ltd | 01546385 | 17/10/2005 | 17/10/2005 | Dissolved |
| Gfk Great Britain Ltd | 01546385 | 17/10/2005 | 17/10/2005 | Dissolved |
| INTERACTIVE RESEARCH LIMITED | 01792625 | 01/11/2002 | 23/07/2008 | Dissolved |
| IPSOS MYSTERY SHOPPING SERVICES UK LIMITED | 03190828 | 01/11/2002 | 23/07/2008 | Dissolved |
| IPSOS MYSTERY SHOPPING UK LIMITED | 05895847 | 22/08/2006 | 23/07/2008 | Dissolved |
| MIL RESEARCH GROUP LIMITED | 00471008 | 01/11/2002 | 23/07/2008 | Dissolved |
| NUMBERS SERVICES LIMITED | 01986188 | 01/11/2002 | 23/07/2008 | Dissolved |
| Nop Market Research Ltd | 00801975 | 01/11/2002 | 23/07/2008 | Dissolved |
| ROPERASW EUROPE LIMITED | 02945135 | 25/04/2006 | 23/07/2008 | Dissolved |
| SPARK FIELD SOLUTIONS LIMITED | 01425948 | 22/12/2004 | 23/07/2008 | Dissolved |
| UTMB UK LIMITED | 13601980 | 03/09/2021 | 25/08/2022 | One Red Flag |