| Name | Company Number | Date Appointed | Rating |
|---|
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| BROWN ADVISORY US SMALLER COMPANIES PLC | 02781968 | 28/01/1993 | 06/11/1996 | Gold |
| DOCKENBRAE INVESTMENTS LIMITED | 01892900 | 31/12/1990 | 13/11/2008 | Dissolved |
| Hadron Investments Limited | 02082208 | 31/12/1990 | 01/04/1991 | Dissolved |
| INSTITUTE FOR FISCAL STUDIES(THE) | 00954616 | 01/07/1991 | 03/07/2001 | Silver |
| PENSIONS MANAGEMENT (S.W.F.) LIMITED | SC045361 | 17/04/1990 | 05/04/1994 | Not Trading |
| SCOTTISH WIDOWS' FUND AND LIFE ASSURANCE SOCIETY | SZ000002 | 21/05/1993 | 03/05/1994 | Not Trading |