| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| Association of Market Survey Organisations Ltd | 00832568 | 24/06/1992 | Dissolved |
| Grc Holdings Ltd | 06278968 | 22/06/2007 | Dissolved |
| Grc Holdings Ltd | 06278968 | 22/06/2007 | Dissolved |
| Peac Limited | 02645925 | 06/10/1992 | Dissolved |
| Pegram Walters International Ltd | 02474731 | 27/02/1992 | Dissolved |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| INTERVIEWER QUALITY CONTROL SCHEME(THE) | 02020172 | 23/03/1999 | 31/12/1999 | Gold |
| IPSOS RESEARCH LTD | 02388345 | 31/12/1991 | 01/06/1994 | Not Trading |
| Synovate (Market Research) Ltd | 02758193 | 22/08/1992 | 25/02/2005 | Dissolved |
| The British Market Research Association Ltd | 03419017 | 01/09/1998 | 10/01/2000 | Dissolved |