| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| GDM DESIGN SERVICES LIMITED | 15259547 | 03/11/2023 | Bronze |
| Marlin Building Services Consultancy Ltd | 02245936 | 21/11/1990 | Dissolved |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| MEINHARDT (UK) LIMITED | 04131858 | 24/07/2003 | 05/09/2005 | Silver |
| MEINHARDT (UK) LIMITED | 04131858 | 24/07/2003 | 05/09/2005 | Silver |
| WSP COMMUNICATIONS LIMITED | 02363466 | 01/07/2000 | 30/06/2003 | Dissolved |
| WSP LONDON LIMITED | 02813014 | 01/10/1997 | 31/12/1998 | Dissolved |
| WSP UK LIMITED | 01383511 | 01/01/2003 | 13/05/2003 | Gold |