| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| George E. Golden Ltd | 03439809 | 25/09/1997 | Dissolved |
| TRIREME TRUST(THE) | 01764377 | 18/12/2017 | Dissolved |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| 46 DE PARYS AVENUE LIMITED | 02640245 | 28/01/2008 | 03/12/2009 | Gold |
| BRITISH GRAND PRIX LIMITED | 00926634 | 29/05/1991 | 27/03/2001 | Silver |
| INTERNATIONAL MOTOR SPORTS LIMITED | 02979954 | 28/10/1994 | 31/07/2001 | Amber |
| MOTORSPORT UK ASSOCIATION LIMITED | 01344829 | 06/06/1991 | 27/03/2001 | Silver |
| RSAC MOTORSPORT LIMITED | SC078564 | 22/10/1996 | 27/03/2001 | Silver |
| Speedway Control Board Ltd (The) | 00413807 | 08/11/1994 | 31/12/1999 | Dissolved |
| THE AUTO-CYCLE UNION LIMITED | 00134679 | 11/01/1995 | 10/02/1999 | Silver |
| THE MOTOR SPORTS ASSOCIATION LIMITED | 03694122 | 12/01/1999 | 27/03/2001 | Dissolved |
| THE MOTORCYCLE CIRCUIT RACING CONTROL BOARD LIMITED | 03062301 | 28/05/1995 | 27/03/2001 | Amber |
| TRIREME TRUST(THE) | 01764377 | 30/09/1993 | 22/09/1997 | Dissolved |
| The Classic British Quality Charter Ltd | 04569718 | 22/10/2002 | 07/07/2004 | Dissolved |