| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| Unilever Employee Benefit (Quest) Ltd | 00465584 | 27/02/1998 | Dissolved |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| 4GP LEASES LIMITED | 04195718 | 01/09/2002 | 27/07/2004 | Dissolved |
| BERINGEA LIMITED | 01478819 | 14/01/1997 | 30/01/1998 | Bronze |
| BS QUEST TRUSTEE LIMITED | 03512742 | 03/03/1998 | 28/02/2006 | Dissolved |
| CS INVESTMENT SERVICES | 02711170 | 24/02/1994 | 15/06/1995 | Dissolved |
| FCCH LIMITED | 02183234 | 01/09/1992 | 22/04/1994 | Dissolved |
| Guinness Flight Paterson Ltd | 02909250 | 25/01/1996 | 30/04/1997 | Dissolved |
| IFA HOLDING COMPANY LIMITED | 02411822 | 04/08/1998 | 05/03/2002 | Dissolved |
| INVESTEC INVESTMENTS (UK) LIMITED | 00205468 | 01/09/1992 | 08/07/1997 | Gold |
| INVESTEC SECURITIES LIMITED | 01039229 | 01/09/1992 | 01/10/2002 | Not Trading |
| MCLEAN TW LIMITED | 01986430 | 03/04/1996 | 02/06/1999 | Not Trading |
| NINETY ONE UK LIMITED | 02036094 | 22/11/1995 | 01/05/1997 | Silver |
| PATSYSTEMS HOLDINGS LIMITED | 03930861 | 16/03/2000 | 19/05/2003 | Dissolved |
| THE WORDSWORTH TRUST | 03442086 | 02/05/2000 | 25/03/2007 | Silver |
| TIETOENATOR ATTENTIV SYSTEMS LIMITED | 02891007 | 11/03/2004 | 27/05/2005 | Dissolved |
| VINCENT'S APPEAL TRUST COMPANY | 06021000 | 11/12/2006 | 12/12/2011 | Silver |