| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| Hughes Aviation Ltd | 02184480 | 01/10/1990 | Dissolved |
| Signet Contracts Ltd | 03397878 | 03/07/1997 | Dissolved |
| Wings Aerospace Ltd | 04896433 | 18/09/2003 | Dissolved |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| Academic Property Investments Ltd | 03663025 | 07/11/1998 | 01/11/1999 | Dissolved |
| BOSTONAIR LIMITED | 00381534 | 26/12/1991 | 31/01/1998 | Silver |
| Humberside Aero Services Ltd | 01365661 | 22/10/1993 | 31/01/1998 | Dissolved |
| Lexall Developments Ltd | 04019784 | 24/06/2000 | 21/08/2000 | Dissolved |
| Lexall Ltd | 04017179 | 20/06/2000 | 21/08/2000 | Dissolved |
| Wings Aerospace Support Services Ltd | 03807670 | 15/07/1999 | 13/10/2006 | Dissolved |