| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| Hopwood,W,& Co Ltd | 00864930 | 14/07/1992 | Dissolved |
| IMMIGRATION ADVISORY SERVICE | 02823970 | 01/03/2005 | Dissolved |
| TXT2BUY LIMITED | 06799704 | 25/05/2011 | Dissolved |
| The Online Research Agency Ltd | 03115033 | 11/08/2000 | Dissolved |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| BEACON ORGANISATIONAL DEVELOPMENT LIMITED | 04203257 | 20/04/2001 | 13/01/2008 | Gold |
| KIDSACTIVE | 01635927 | 25/09/1996 | 08/11/2000 | Amber |
| MARKET RESEARCH SOCIETY(THE) | 00518685 | 01/04/2012 | 31/03/2018 | Silver |
| MINDS MATTER (TRADING ACTIVITIES) LIMITED | 01005048 | 07/11/1991 | 28/10/1992 | Bronze |
| NATWEST GROUP PLC | SC045551 | 23/01/1991 | 01/10/1997 | Silver |
| NATWEST MARKETS PLC | SC090312 | 28/12/1988 | 01/10/1997 | Silver |
| OPEN UNIVERSITY WORLDWIDE LIMITED | 01260275 | 01/08/1997 | 31/07/2001 | Gold |
| PRT MARKETING LIMITED | 02825532 | 09/06/1993 | 11/03/1996 | Dissolved |
| ROYAL SURGICAL AID SOCIETY | 00515174 | 18/10/2001 | 11/09/2002 | Silver |
| Risc (U K) Ltd | 02530498 | 13/08/1992 | 14/02/1993 | Dissolved |
| STARGATE CAPITAL INVESTMENT GROUP LIMITED | 04953657 | 09/02/2004 | 14/10/2006 | Amber |
| TAVISTOCK INSTITUTE OF HUMAN RELATIONS(THE) | 00442517 | 27/09/2007 | 22/05/2013 | Bronze |
| TAYLOR NELSON SOFRES INTERNATIONAL LIMITED | 01953112 | 14/07/1992 | 11/08/1992 | Silver |
| THE MUSIC THERAPY CHARITY | 00955930 | 30/03/1995 | 28/04/1999 | Bronze |
| THE PRINCESS ROYAL TRUST FOR CARERS | SC125046 | 05/03/1992 | 27/08/1992 | Amber |
| THIRD AGE CHALLENGE TRUST | 02602523 | 01/05/1996 | 01/01/1997 | Dissolved |
| TNS GROUP HOLDINGS LIMITED | 00912624 | 14/07/1992 | 11/08/1992 | Bronze |
| WELLBEING OF WOMEN | 00824076 | 19/11/1996 | 12/01/2005 | Silver |
| WOMEN AND MANUAL TRADES | 02962569 | 19/05/2016 | 20/03/2017 | Dissolved |