| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| BHX (SCOTLAND) LIMITED | SC445279 | 18/03/2013 | Gold |
| BHX FIRE AND RESCUE LIMITED | 05997636 | 31/01/2015 | Silver |
| BIRMINGHAM AIRPORT (FINANCE) PLC | 04061664 | 31/01/2015 | Amber |
| BIRMINGHAM AIRPORT AIR TRAFFIC LIMITED | 08201487 | 31/01/2015 | Bronze |
| BIRMINGHAM AIRPORT DEVELOPMENTS LIMITED | 02295119 | 31/01/2015 | Silver |
| BIRMINGHAM AIRPORT LIMITED | 02078273 | 31/01/2015 | Silver |
| BIRMINGHAM AIRPORT OPERATIONS LIMITED | 09915844 | 14/12/2015 | One Red Flag |
| BIRMINGHAM AIRPORT SERVICES LIMITED | 08203043 | 31/01/2015 | Silver |
| ELECTRICITY 4 BUSINESS LIMITED | 05064028 | 01/08/2007 | Dissolved |
| EURO-HUB (BIRMINGHAM) LIMITED | 02403252 | 31/01/2015 | Amber |
| FIRST CASTLE DEVELOPMENTS LIMITED | 02783202 | 31/01/2015 | Bronze |
| THE BIRMINGHAM ORTHOPAEDIC CHARITY | 04411686 | 18/03/2014 | Silver |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| AIRPORT OPERATORS ASSOCIATION LTD. | 01041754 | 03/04/2018 | 08/01/2019 | Silver |
| E.ON ENERGY SOLUTIONS LIMITED | 03407430 | 08/04/2002 | 30/04/2007 | Gold |
| ECONOMY POWER LIMITED | 03385578 | 17/06/2005 | 30/04/2007 | Not Trading |
| EDW TECHNOLOGY HOLDINGS LIMITED | 05934466 | 01/08/2007 | 17/07/2009 | Gold |
| MIDLANDS SALES LIMITED | 02573405 | 04/02/2004 | 15/09/2006 | Dissolved |
| NATIONAL GRID ELECTRICITY DISTRIBUTION (EAST MIDLANDS) PLC | 02366923 | 26/09/2001 | 01/03/2002 | Silver |
| POWERGEN WARM FRONT LIMITED | 04725781 | 01/01/2004 | 30/04/2007 | Dissolved |
| QUADRANT PIPELINES LIMITED | 02528816 | 20/08/2001 | 01/03/2002 | Gold |
| TXU WARM FRONT LIMITED | 03951849 | 27/01/2003 | 30/04/2007 | Dissolved |
| UNIPER UK GAS LIMITED | 02436332 | 28/06/2004 | 30/04/2007 | Gold |