| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| PROJECT CONTROL CONSULTING LIMITED | 06849600 | 17/03/2009 | Gold |
| SEACOTE RESIDENTS COMPANY LIMITED | 05991404 | 13/05/2023 | Not Trading |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| AIRPORTS LIMITED | 02064328 | 20/01/1998 | 01/06/2002 | Dissolved |
| AIRPORTS UK LIMITED | 01363979 | 20/01/1998 | 01/06/2002 | Dissolved |
| BAA GENERAL PARTNER LIMITED | 03640482 | 13/09/2001 | 01/06/2002 | Dissolved |
| BAA PARTNERSHIP LIMITED | 03631051 | 13/09/2001 | 01/06/2002 | Not Trading |
| BAA PENSION TRUST COMPANY LIMITED | 02379458 | 16/03/2006 | 01/01/2009 | Not Trading |
| Baa 21ST Century Communities Trust (Trading) Ltd | 03494243 | 26/01/1998 | 01/06/2002 | Dissolved |
| Baa Airportsmart Ltd | 01398976 | 20/01/1998 | 01/06/2002 | Dissolved |
| HEATHROW AIRPORT LIMITED | 01991017 | 01/01/1995 | 01/01/1998 | Silver |
| Heathrow Express Ltd | 01983911 | 01/01/1995 | 01/01/1998 | Dissolved |
| LOGIKAL LTD. | 04582669 | 01/04/2009 | 24/11/2022 | Bronze |
| SOUTHAMPTON HANDLING LIMITED | 01972688 | 20/01/1998 | 01/06/2002 | Dissolved |
| SOUTHAMPTON INTERNATIONAL AIRPORT LIMITED | 02431858 | 12/10/1992 | 21/12/1992 | Amber |
| WORLD BUSINESS CENTRE MANAGEMENT COMPANY LIMITED | 04244462 | 20/03/2002 | 01/06/2002 | Bronze |