| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| GLOBAL INFRASTRUCTURE INVESTOR ASSOCIATION LIMITED | 09668904 | 03/07/2017 | Gold |
| NL AIRPORT FINANCE LIMITED | 08275810 | 03/12/2012 | Dissolved |
| NL AIRPORT INVESTMENTS LIMITED | 08275767 | 03/12/2012 | Dissolved |
| ORCHARD COURT (PORTMAN SQUARE) LIMITED | 01781246 | 31/10/2013 | Bronze |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| AIRPORTS (UK) NO.2 LIMITED | 04283572 | 03/02/2004 | 18/07/2005 | Dissolved |
| BRISTOL AIRPORT (UK) NO 1 LIMITED | 04085967 | 13/12/2000 | 19/04/2005 | Dissolved |
| BRISTOL AIRPORT LIMITED | 02078692 | 24/04/2003 | 24/02/2004 | Gold |
| MACQUARIE INFRASTRUCTURE AND REAL ASSETS (EUROPE) LIMITED | 03976881 | 18/11/2002 | 18/03/2004 | Gold |
| MACQUARIE INFRASTRUCTURE GP LIMITED | 05755862 | 09/03/2016 | 12/01/2018 | One Red Flag |
| NL AIRPORT PENSION TRUSTEE LIMITED | 08306373 | 20/12/2012 | 14/01/2013 | Dissolved |
| SOUTH WEST AIRPORTS LIMITED | 05403045 | 15/12/2010 | 26/04/2012 | Silver |
| TIDEFAST LIMITED | 04085972 | 13/12/2000 | 28/02/2001 | Dissolved |