| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| ARBOUR COURT MANAGEMENT LTD | 08884943 | 10/02/2014 | Gold |
| ARBOUR COURT PROPERTY COMPANY LIMITED | 09020517 | 01/05/2014 | One Red Flag |
| BROCKLAN INVESTMENTS LIMITED | 01478425 | 04/07/2000 | Dissolved |
| DFM HOMES LIMITED | 09068038 | 03/06/2014 | Dissolved |
| GRAYS HARLINGTON MANAGEMENT LIMITED | 00966144 | 28/02/2003 | Gold |
| HEATHROW LUXURY DEVELOPMENT COMPANY LIMITED | 07590262 | 02/05/2012 | Dissolved |
| LYNCHMOOR (LEASEHOLD) LIMITED | 07764449 | 06/09/2011 | Bronze |
| LYNCHMOOR (PROPERTIES) LIMITED | 02046787 | 27/03/2002 | One Red Flag |
| MFD PROPERTIES LIMITED | 11298101 | 07/04/2018 | One Red Flag |
| THE HILLINGDON CHAMBER OF COMMERCE LIMITED | 03781685 | 02/06/1999 | Bronze |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| COUNTY & SUBURBAN CARE LIMITED | 02248411 | 04/07/2000 | 29/01/2004 | Dissolved |
| DENHAM MANOR HOLDINGS LIMITED | 04726839 | 08/04/2003 | 29/01/2004 | Dissolved |
| THE HILLINGDON CHAMBER OF COMMERCE LIMITED | 03781685 | 31/12/2003 | 28/06/2022 | Bronze |
| THE HILLINGDON CHAMBER OF COMMERCE LIMITED | 03781685 | 02/06/1999 | 28/06/2023 | Bronze |
| WEST LONDON BUSINESS LTD | 02934029 | 23/09/1996 | 02/10/2001 | Bronze |