| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| Perth Airport Ltd | 00345684 | 31/07/2006 | Dissolved |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| BOND HELICOPTER SERVICES | SC178188 | 08/10/1999 | 31/01/2004 | Dissolved |
| BOND ROTARY WING LIMITED | 02412767 | 07/06/1996 | 13/01/1997 | Dissolved |
| BRINTEL HELICOPTERS LIMITED | SC137022 | 15/10/1999 | 31/01/2004 | Not Trading |
| BRISTOW AIRCRAFT LEASING LIMITED | 10289512 | 21/07/2016 | 30/06/2017 | Bronze |
| BRISTOW AVIATION HOLDINGS LIMITED | 03234500 | 28/04/2016 | 30/06/2017 | Amber |
| BRISTOW HELICOPTER GROUP LIMITED | 02641653 | 15/05/2015 | 30/06/2017 | Gold |
| BRISTOW HELICOPTERS (INTERNATIONAL) LIMITED | 00604403 | 11/01/2010 | 30/06/2017 | One Red Flag |
| BRISTOW HELICOPTERS LIMITED | 00551102 | 01/07/2004 | 28/11/2014 | Bronze |
| BRISTOW STAFF PENSION SCHEME TRUSTEES LIMITED | 02663634 | 16/05/2007 | 12/11/2008 | Not Trading |
| BRISTOW TECHNICAL SERVICES LIMITED | 00520374 | 11/01/2010 | 30/06/2017 | Bronze |
| BRITISH INTERNATIONAL HELICOPTER SERVICES LIMITED | 02575976 | 15/10/1999 | 16/05/2000 | One Red Flag |
| CHC HOLDING (UK) LIMITED | SC147943 | 15/10/1999 | 31/01/2004 | One Red Flag |
| CHC SCOTIA LIMITED | 00936569 | 01/01/1999 | 31/01/2004 | One Red Flag |
| HELI-ONE (UK) LIMITED | SC136650 | 15/10/1999 | 31/01/2004 | One Red Flag |
| HELIDECK CERTIFICATION AGENCY LIMITED | SC288177 | 01/11/2008 | 30/09/2010 | Gold |
| LLOYD HELICOPTER SERVICES LIMITED | SC181461 | 08/10/1999 | 31/01/2004 | Not Trading |
| MANAGEMENT AVIATION LIMITED | 00872372 | 08/10/1999 | 31/01/2004 | Not Trading |
| NORTH DENES AERODROME LIMITED | 00555902 | 01/01/1999 | 31/01/2004 | Dissolved |
| ROTORTECH LIMITED | 00989737 | 05/07/1993 | 31/12/1998 | Dissolved |
| SURVITEC VISCOM LTD | SC136955 | 12/09/2006 | 09/06/2010 | Amber |
| Scotia Chc Ltd | SC208939 | 22/08/2000 | 31/01/2004 | Dissolved |
| Scotia Helicopter Services Ltd | SC208930 | 08/09/2000 | 31/01/2004 | Dissolved |