| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| CLIVEDEN BLOODSTOCK LIMITED | 00974145 | 21/12/1992 | Not Trading |
| CLIVEDEN STUD LIMITED | 00376663 | 01/12/1992 | One Red Flag |
| RACE HORSE TRADER LIMITED | 08096603 | 19/10/2012 | Dissolved |
| Reference Properties Investments Ltd | 02830535 | 04/01/2006 | Dissolved |
| Reference Properties Investments Ltd | 02830535 | 16/11/1993 | Dissolved |
| Reference Properties Ltd | 02884651 | 05/01/1994 | Dissolved |
| Reference Properties Ltd | 02884651 | 04/01/2006 | Dissolved |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| BRITISH HORSERACING AUTHORITY LIMITED | 02813358 | 01/01/2003 | 30/07/2007 | Gold |
| INPUTKEY LIMITED | 03124212 | 13/04/2013 | 09/10/2013 | Silver |
| JOCKEY CLUB ESTATES LIMITED | 00944773 | 15/06/1998 | 18/07/2009 | Gold |
| NO. 6 THE AVENUE MANAGEMENT COMPANY LIMITED | 05882870 | 15/04/2008 | 24/02/2021 | Not Trading |
| OWNER BREEDER MEDIA GROUP LIMITED | 05147933 | 08/06/2004 | 18/03/2009 | Amber |
| OWNER BREEDER MEDIA GROUP LIMITED | 05147933 | 08/06/2004 | 31/05/2009 | Amber |
| THE BURNHAM HEALTH PROMOTION TRUST | 03435602 | 17/09/1997 | 28/05/2019 | Amber |
| THOROUGHBRED GRP LIMITED | 05848596 | 01/01/2013 | 30/06/2020 | One Red Flag |
| YEARLING BONUS TRUSTEES LIMITED | 07037469 | 23/10/2009 | 04/07/2013 | Dissolved |