| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| HOME OF HORSERACING TRUST | 05369873 | 18/04/2008 | Dissolved |
| L E C (1982) Ltd | 01651221 | 29/11/1991 | Dissolved |
| London Export Corp Ltd | 01153939 | 28/11/1991 | Dissolved |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| AGRICOLA GROUP LIMITED | 04026040 | 18/07/2000 | 11/07/2012 | Dissolved |
| AGRICOLA HOLDINGS LIMITED | 03632199 | 27/11/1998 | 18/07/2000 | Dissolved |
| AVIVA GROUP HOLDINGS LIMITED | 01555746 | 07/05/1992 | 16/06/1997 | Silver |
| AVIVA INSURANCE UK LIMITED | 00099122 | 07/05/1992 | 16/06/1997 | Not Trading |
| AVIVA PLC | 02468686 | 30/05/2000 | 31/12/2005 | Bronze |
| BRECKLAND FARMS LIMITED | 00835859 | 15/05/1992 | 21/02/1995 | Dissolved |
| CNA INSURANCE COMPANY LIMITED | 00000950 | 07/05/1992 | 31/12/1992 | Gold |
| Dobson,Richard,& Sons Plc | 00752433 | 12/04/1991 | 01/10/1992 | Dissolved |
| ELEMENTIS HOLDINGS LIMITED | 00097878 | 06/06/1992 | 10/09/1997 | Bronze |
| ELEMENTIS SECURITIES LIMITED | 00597303 | 20/10/1992 | 20/10/1993 | Bronze |
| H & C TIMBER AND BUILDING SUPPLIES LIMITED | 00163210 | 08/06/1992 | 06/09/1993 | Dissolved |
| Harrisons & Crosfield Plantations Ltd | 02521079 | 11/07/1992 | 17/12/1993 | Dissolved |
| JOCKEY CLUB ESTATES LIMITED | 00944773 | 02/07/1991 | 06/07/2005 | Gold |
| JPMORGAN GLOBAL GROWTH & INCOME PLC | 00024299 | 07/01/1998 | 26/10/2010 | Gold |
| NATIONAL HORSERACING MUSEUM(THE) | 01592031 | 17/04/2008 | 14/04/2011 | Silver |
| NOTCUTTS LIMITED | 00393104 | 01/01/1998 | 01/10/2010 | Silver |
| Pauls F & F Ltd | 00825456 | 12/04/1991 | 14/01/1993 | Dissolved |
| SUFFOLK AGRICULTURAL ASSOCIATION | 01775897 | 31/12/1993 | 09/12/1996 | Bronze |
| SUFFOLK HORSE SOCIETY(THE) | 00035060 | 14/03/1995 | 22/04/2023 | Bronze |
| THE NORWICH UNION LIFE INSURANCE COMPANY LIMITED | 00038832 | 07/05/1992 | 16/06/1997 | Dissolved |
| UNDERSHAFT (NO.4) LIMITED | 03290130 | 10/03/1997 | 01/08/2000 | Dissolved |
| Union Insurance Co | SZ000011 | 06/05/1994 | 01/10/1994 | Dissolved |