| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| Airport Group Luton Ltd | 03513222 | 20/09/1999 | Dissolved |
| Asurgent Ltd | 05978832 | 26/10/2006 | Dissolved |
| BELFAST INTERNATIONAL AIRPORT TRUSTEE COMPANY LIMITED | 02954693 | 04/08/1997 | Dissolved |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| AIRPORT OPERATORS ASSOCIATION LTD. | 01041754 | 04/03/2008 | 01/03/2016 | Silver |
| ALDERGROVE AIRPORT LIMITED | 02927851 | 04/08/1997 | 07/01/2005 | Dissolved |
| ALDERGROVE CARPARKS LIMITED | NI024371 | 13/04/1990 | 07/01/2005 | Dissolved |
| ALDERGROVE INTERNATIONAL AIRPORT LIMITED | 02928453 | 04/08/1997 | 07/01/2005 | Dissolved |
| ASURGENT LTD | 10929364 | 23/08/2017 | 01/08/2019 | Dissolved |
| BELFAST INTERNATIONAL AIRPORT HOLDINGS LIMITED | 02927853 | 04/08/1997 | 07/01/2005 | Dissolved |
| BHX (SCOTLAND) LIMITED | SC445279 | 18/03/2013 | 12/07/2017 | Gold |
| BHX FIRE AND RESCUE LIMITED | 05997636 | 27/10/2008 | 12/07/2017 | Gold |
| BIRMINGHAM AIRPORT (FINANCE) PLC | 04061664 | 27/10/2008 | 12/07/2017 | Amber |
| BIRMINGHAM AIRPORT AIR TRAFFIC LIMITED | 08201487 | 04/09/2012 | 12/07/2017 | Silver |
| BIRMINGHAM AIRPORT DEVELOPMENTS LIMITED | 02295119 | 27/10/2008 | 12/07/2017 | Gold |
| BIRMINGHAM AIRPORT HOLDINGS LIMITED | 03312673 | 27/10/2008 | 12/07/2017 | Silver |
| BIRMINGHAM AIRPORT LIMITED | 02078273 | 27/10/2008 | 12/07/2017 | Silver |
| BIRMINGHAM AIRPORT OPERATIONS LIMITED | 09915844 | 14/12/2015 | 12/07/2017 | Bronze |
| BIRMINGHAM AIRPORT SERVICES LIMITED | 08203043 | 05/09/2012 | 12/07/2017 | Silver |
| BIRMINGHAM CHAMBER OF COMMERCE AND INDUSTRY | 00078731 | 14/11/2014 | 19/11/2021 | Silver |
| BRISTOL AIRPORT (UK) NO 1 LIMITED | 04085967 | 04/06/2007 | 24/10/2008 | Dissolved |
| BRISTOL AIRPORT (UK) NO 2 LIMITED | 04085761 | 04/06/2007 | 24/10/2008 | Dissolved |
| BRISTOL AIRPORT (UK) NO 4 LIMITED | 03079583 | 04/06/2007 | 24/10/2008 | Dissolved |
| BRISTOL AIRPORT DEVELOPMENTS LIMITED | 05175337 | 04/06/2007 | 24/10/2008 | Silver |
| BRISTOL AIRPORT LIMITED | 02078692 | 04/06/2007 | 24/10/2008 | Gold |
| BRISTOL CITY AIRPORT LIMITED | 03085434 | 04/06/2007 | 24/10/2008 | Not Trading |
| CARDIFF INTERNATIONAL AIRPORT LIMITED | 02076096 | 26/10/1999 | 07/01/2005 | Amber |
| COVENTRY AND WARWICKSHIRE LOCAL ENTERPRISE PARTNERSHIP LIMITED | 08210423 | 11/01/2013 | 11/09/2018 | Insolvent |
| DX ELECTRONIC SERVICES LIMITED | 04779641 | 14/11/2005 | 31/12/2006 | Dissolved |
| DX NETWORK SERVICES LIMITED | 05026914 | 14/11/2005 | 31/12/2006 | Silver |
| DX SERVICES LIMITED | 05146074 | 14/11/2005 | 31/12/2006 | Amber |
| EURO-HUB (BIRMINGHAM) LIMITED | 02403252 | 27/10/2008 | 12/07/2017 | Amber |
| FIRST CASTLE DEVELOPMENTS LIMITED | 02783202 | 27/10/2008 | 12/07/2017 | Bronze |
| LONDON LUTON AIRPORT OPERATIONS LIMITED | 03491213 | 21/10/1999 | 05/08/2005 | Silver |
| MANTIC POINT SOLUTIONS LTD | 04896332 | 15/08/2006 | 15/12/2011 | Silver |
| TBI LIMITED | 01064763 | 19/11/2001 | 05/01/2005 | Dissolved |
| TIDEFAST LIMITED | 04085972 | 04/06/2007 | 24/10/2008 | Dissolved |
| WEST MIDLANDS GROWTH COMPANY LIMITED | 01631329 | 27/04/2009 | 24/05/2018 | Amber |