| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| BUBLTOWN TECHNOLOGY GROUP LIMITED | 11380370 | 01/04/2020 | Bronze |
| UNICOM TECHNOLOGY GROUP LIMITED | 10574796 | 17/01/2018 | Dissolved |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| BRITISH MOTORSPORT PROMOTERS LIMITED | 03800854 | 14/11/2005 | 19/12/2014 | Dissolved |
| HALO ACTIVE TECHNOLOGIES LIMITED | 09727299 | 11/08/2015 | 09/03/2017 | Dissolved |
| NORTHAMPTONSHIRE ENTERPRISE PARTNERSHIP | 05688251 | 24/02/2010 | 15/10/2014 | Dissolved |
| SILVERSTONE ESTATES LIMITED | 01013427 | 01/08/2014 | 10/11/2014 | Silver |
| SILVERSTONE HERITAGE LIMITED | 08740498 | 11/07/2014 | 10/11/2014 | Dissolved |
| SILVERSTONE HOLDINGS LIMITED | 05223843 | 16/12/2004 | 10/11/2014 | Dissolved |
| SILVERSTONE INNOVATION CENTRE LIMITED | 04957267 | 01/08/2014 | 10/11/2014 | Dissolved |
| SOUTH EAST MIDLANDS LOCAL ENTERPRISE PARTNERSHIP LIMITED | 07652124 | 25/10/2011 | 16/09/2014 | Gold |
| THE ASSOCIATION OF MOTOR RACING CIRCUIT OWNERS LIMITED | 03070534 | 23/08/2010 | 08/04/2015 | One Red Flag |
| THE MOTORCYCLE RACE PROMOTERS COMMITTEE LIMITED | 05396112 | 02/06/2010 | 08/04/2015 | One Red Flag |
| TOVE LEARNING TRUST | 07525820 | 01/03/2011 | 10/03/2014 | Gold |
| TOWCESTER LEARNING TRUST | 07492102 | 13/01/2011 | 10/03/2014 | Dissolved |
| TPF ASSOCIATES LIMITED | 05313072 | 14/12/2004 | 12/10/2007 | Amber |