| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| Brintel Leasing Limited | SC141789 | 17/07/1998 | Dissolved |
| British International Helicopters (Isles of Scilly) Ltd | SC137023 | 17/07/1998 | Dissolved |
| British International Helicopters (North Sea) Ltd | SC139428 | 17/07/1998 | Dissolved |
| CHECKMARK ACQUISITION COMPANY LIMITED | SC824141 | 28/01/2025 | Amber |
| HELIDECK ANALYTICS LTD. | SC474390 | 28/05/2021 | One Red Flag |
| HELIDECK CERTIFICATION AGENCY LIMITED | SC288177 | 28/05/2021 | Gold |
| HELIDECK INVESTMENTS LIMITED | SC571011 | 28/05/2021 | Not Trading |
| International Helicopters Ltd | SC144230 | 17/07/1998 | Dissolved |
| Soteria Dormant 1 Ltd | SC337620 | 09/02/2009 | Dissolved |
| Soteria Dormant 2 Ltd | SC337618 | 09/02/2009 | Dissolved |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| BOND HELICOPTER SERVICES | SC178188 | 24/08/1999 | 28/09/2001 | Dissolved |
| BOND ROTARY WING LIMITED | 02412767 | 24/08/1999 | 28/09/2001 | Dissolved |
| BRINTEL HELICOPTERS LIMITED | SC137022 | 17/07/1998 | 28/09/2001 | Not Trading |
| BRITISH INTERNATIONAL HELICOPTER SERVICES LIMITED | 02575976 | 17/07/1998 | 16/05/2000 | Silver |
| Bond Helicopters Ltd | SC199757 | 10/09/1999 | 28/09/2001 | Dissolved |
| CHC HOLDING (UK) LIMITED | SC147943 | 17/07/1998 | 28/09/2001 | One Red Flag |
| CHC HOLDING (UK) LIMITED | SC147943 | 01/04/2009 | 28/02/2011 | One Red Flag |
| CHC SCOTIA LIMITED | 00936569 | 24/08/1999 | 28/09/2001 | One Red Flag |
| CHC SCOTIA LIMITED | 00936569 | 30/03/2009 | 29/04/2011 | One Red Flag |
| CHC SEARCH AND RESCUE LIMITED | 06936754 | 17/06/2009 | 29/04/2011 | Dissolved |
| FLIGHT HANDLING LIMITED | SC164266 | 17/07/1998 | 28/09/2001 | Dissolved |
| HELI-ONE (UK) LIMITED | SC136650 | 17/07/1998 | 28/09/2001 | Amber |
| HELI-ONE HOLDINGS (UK) LIMITED | 06679406 | 14/10/2008 | 13/04/2010 | One Red Flag |
| HELIDECK CERTIFICATION AGENCY LIMITED | SC288177 | 26/08/2005 | 14/02/2007 | Gold |
| HELIDECK CERTIFICATION AGENCY LIMITED | SC288177 | 26/08/2005 | 13/06/2006 | Gold |
| LLOYD HELICOPTER SERVICES LIMITED | SC181461 | 24/08/1999 | 28/09/2001 | Not Trading |
| MANAGEMENT AVIATION LIMITED | 00872372 | 24/08/1999 | 28/09/2001 | Not Trading |
| NORTH DENES AERODROME LIMITED | 00555902 | 24/08/1999 | 28/09/2001 | Dissolved |
| SOTERIA HELICOPTER SERVICES LIMITED | 06935620 | 16/06/2009 | 29/04/2011 | Dissolved |
| SOTERIA SEARCH AND RESCUE LIMITED | 06935662 | 16/06/2009 | 29/04/2011 | Dissolved |
| Scotia Chc Ltd | SC208939 | 22/08/2000 | 28/09/2001 | Dissolved |
| Scotia Helicopter Services Ltd | SC208930 | 08/09/2000 | 28/09/2001 | Dissolved |