| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| PCT FINANCE LIMITED | 03254819 | 01/01/2007 | Dissolved |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| ARMY AND NAVY INVESTMENT COMPANY LIMITED(THE) | 00826185 | 06/03/1992 | 24/02/2006 | Dissolved |
| BAILLIE GIFFORD EUROPEAN GROWTH TRUST PLC | 01055384 | 23/01/2004 | 21/01/2021 | Silver |
| HENDERSON GLOBAL INVESTORS (HOLDINGS) LIMITED | 01721385 | 07/10/1996 | 03/04/1998 | Amber |
| Henderson Touche Remnant Investment Trust Management Ltd | 02658537 | 29/10/1993 | 13/10/1995 | Dissolved |
| JANUS HENDERSON INVESTORS UK LIMITED | 00906355 | 23/06/1997 | 16/11/2001 | Silver |
| LOWLAND INVESTMENT COMPANY P L C | 00670489 | 19/11/1997 | 22/01/2010 | Silver |
| MONTANARO UK SMALLER COMPANIES INVESTMENT TRUST PLC | 03004101 | 28/01/2005 | 31/07/2015 | Gold |
| OLD MUTUAL SOUTH AFRICA TRUST PLC | 02939312 | 14/06/1994 | 13/02/2007 | Dissolved |
| POLAR CAPITAL TECHNOLOGY TRUST PLC | 03224867 | 01/01/2007 | 07/09/2017 | Gold |
| THE BANKERS INVESTMENT TRUST PLC | 00026351 | 06/03/1991 | 24/02/2006 | Silver |