| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| HEATHROW AIRPORT COMMUNITY BOARD INSULATION LIMITED | 05823526 | 24/05/2006 | Dissolved |
| INDUSTRY AND PARLIAMENT TRUST | 01308583 | 05/03/2025 | Silver |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| BARROW CADBURY FUND LIMITED(THE) | 00503137 | 18/10/1992 | 11/07/2015 | Bronze |
| IMPROVEMENT AND DEVELOPMENT AGENCY FOR LOCAL GOVERNMENT | 03675577 | 01/09/2010 | 31/07/2013 | Silver |
| NEWABLE LIMITED | 01653116 | 21/11/2002 | 14/10/2004 | Silver |
| THE BARROW CADBURY TRUST | 05836950 | 05/06/2006 | 11/07/2015 | Gold |
| THE CHISWICK HOUSE AND GARDENS TRUST | 05171882 | 17/09/2014 | 03/06/2015 | Silver |
| THE LOCAL GOVERNMENT INFORMATION HOUSE LIMITED | 03490270 | 01/09/2010 | 31/07/2013 | Dissolved |