| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| Damsel Limited | 02303070 | 31/12/1990 | Dissolved |
| Herts Eight Ltd | 01834612 | 08/08/1991 | Dissolved |
| MANUFACTORY HOUSE LEASING LIMITED | 01671257 | 13/08/1991 | Dissolved |
| Perkland Limited | 02001682 | 31/12/1990 | Dissolved |
| S M G L One Ltd | 02005181 | 11/08/1991 | Dissolved |
| T W R Alpina Sports Parts Ltd | 01335483 | 16/01/1991 | Dissolved |
| T W R Automotive Engineering Ltd | 02347271 | 13/08/1991 | Dissolved |
| T W R Finance Ltd | 01931632 | 02/01/1992 | Dissolved |
| T. CORP LIMITED | 01760319 | 11/10/1991 | Dissolved |
| T.W.R. DESIGN LIMITED | 02516534 | 28/06/1991 | Dissolved |
| T.W.R. INVESTMENTS LIMITED | 01725090 | 18/08/1991 | Dissolved |
| T.W.R. ROVERSPORT LIMITED | 02383609 | 18/01/1991 | Dissolved |
| TET-PRO-TEC LIMITED | 01760286 | 31/12/1990 | Dissolved |
| TWR GARAGES LIMITED | 01910156 | 13/08/1991 | Dissolved |
| TWR INTERNATIONAL LIMITED | 01514495 | 31/12/1991 | Dissolved |
| Tressplant Exports Ltd | 01486679 | 21/05/1992 | Dissolved |
| Twr Mazda Motorsport Ltd | 01344177 | 31/12/1990 | Dissolved |
| Volpress Limited | 02346935 | 23/01/1991 | Dissolved |
| Zytek International Limited | 02315992 | 16/01/1991 | Dissolved |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| ALPINE RACING LIMITED | 01806337 | 04/11/1992 | 26/06/1997 | Gold |
| BRITISH RACING DRIVERS CLUB LIMITED(THE) | 00257980 | 24/04/1991 | 24/04/1992 | Silver |
| Brp (Silverstone) Limited | 01784507 | 24/04/1991 | 13/10/1992 | Dissolved |
| Green Crop Conservation Limited | 00474826 | 24/04/1991 | 13/10/1992 | Dissolved |
| Jaguarsport Ltd | 02180941 | 05/06/1992 | 27/05/1994 | Dissolved |
| Project XJ220 | 02316569 | 14/12/1992 | 27/05/1994 | Dissolved |
| RIVERSON LIMITED | 06616872 | 13/01/2009 | 12/12/2010 | Dissolved |
| S & J Ten Ltd | 01709878 | 13/08/1991 | 02/06/1994 | Dissolved |
| SEAN WALKINSHAW RACING LIMITED | 06214182 | 12/08/2008 | 12/12/2010 | Not Trading |
| SILVERSTONE CIRCUITS LIMITED | 00882843 | 24/04/1991 | 13/10/1992 | Silver |
| SILVERSTONE CLUB LIMITED | 01084536 | 24/04/1991 | 13/10/1992 | Silver |
| SILVERSTONE ESTATES LIMITED | 01013427 | 24/04/1991 | 13/10/1992 | Amber |
| SILVERSTONE GRAND PRIX LIMITED | 01162508 | 24/04/1991 | 13/10/1992 | Gold |
| SILVERSTONE RACING SCHOOL LIMITED | 01784502 | 24/04/1991 | 13/10/1992 | Gold |
| SYTNER LONDON LIMITED | 02383590 | 15/05/1992 | 31/08/1999 | Not Trading |
| Shires (Coventry) Ltd | 02194825 | 02/01/1992 | 31/08/1999 | Dissolved |
| Silverstone Rally Centre Limited | 02374917 | 24/04/1991 | 13/10/1992 | Dissolved |
| Silverstone Signs Limited | 01784503 | 24/04/1991 | 13/10/1992 | Dissolved |
| Silverstone Skid School Ltd | 01670812 | 24/04/1991 | 13/10/1992 | Dissolved |
| THE BRDC LIMITED | 01773946 | 24/04/1991 | 13/10/1992 | Silver |
| TOM WALKINSHAW RACING LIMITED | 06215461 | 05/05/2010 | 12/12/2010 | Silver |
| Track Marshall of Gainsborough Ltd | 01957048 | 31/05/1991 | 02/06/1994 | Dissolved |
| Valleydawn Ltd | 01922619 | 03/01/1986 | 02/06/1994 | Dissolved |
| WESTERN COUNTIES AUTOMOBILE COMPANY LIMITED | 02182711 | 15/01/1992 | 31/12/1994 | Silver |