| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| Bdp Holdings (No.2) Ltd | 02149995 | 01/05/1996 | Dissolved |
| Reading Construction Forum | 03013257 | 30/05/1995 | Dissolved |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| BDP EUROPE LIMITED | 02497173 | 01/05/1996 | 01/07/2002 | Not Trading |
| BDP LANDSCAPE LIMITED | 01542435 | 03/04/1992 | 01/07/2002 | Not Trading |
| BDP NOMINEES (PROPERTIES AND SUBSIDIARY OPERATIONS) LIMITED | 02256878 | 02/08/1993 | 01/07/2002 | Not Trading |
| BDP PLANNING SUPERVISORS LIMITED | 02149760 | 03/06/1996 | 30/06/2005 | Not Trading |
| BRITISH COUNCIL FOR OFFICES | 02498018 | 01/11/1992 | 14/07/1999 | Gold |
| BUILDING DESIGN PARTNERSHIP LIMITED | 02207415 | 11/06/1997 | 30/06/2004 | Bronze |
| BUILDING LIFEPLANS LIMITED | 03871048 | 30/08/2013 | 01/09/2019 | Amber |
| Bdp Nominees (Properties & Subsidiary Operations 2) Ltd | 02256881 | 02/08/1993 | 30/06/2005 | Dissolved |
| Collaborating for The Built Environment Ltd | 03437303 | 10/12/2002 | 03/04/2006 | Dissolved |
| DRUMGLASS INVESTMENTS LIMITED | 03587152 | 09/09/1998 | 06/07/2005 | Silver |
| RIBA 1834 LIMITED | 04604934 | 09/10/2007 | 07/10/2008 | Amber |
| RIBA FINANCIAL SERVICES LIMITED | 04604947 | 01/01/2003 | 07/10/2008 | Bronze |
| THE JOINT CONTRACTS TRIBUNAL LIMITED | 03540344 | 01/03/2015 | 01/03/2021 | Gold |
| The Ria Hallmarked Scheme Board Ltd | 03861767 | 28/06/2001 | 19/02/2003 | Dissolved |