| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| Company of Designers Group Ltd | 01319110 | 11/04/1991 | Dissolved |
| M W T Architects Ltd | 01848008 | 11/04/1991 | Dissolved |
| The Company of Designers Plc | 01975975 | 11/04/1991 | Dissolved |
| The Urban Consultancy Ltd | 02737631 | 17/08/1992 | Dissolved |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| ABBEYFIELD BUCKLAND MONACHORUM SOCIETY LIMITED (THE) | 01108309 | 17/01/1994 | 10/09/2004 | Silver |
| BARBICAN ROOMS LIMITED | 03012636 | 04/11/1997 | 17/12/2004 | Gold |
| Company of Designers Plymouth Ltd | 01812121 | 11/04/1991 | 01/02/1992 | Dissolved |
| SAILPORT PLC | 01422153 | 21/10/1991 | 18/10/1997 | Gold |
| THE LENKIEWICZ FOUNDATION | 03306866 | 04/11/1997 | 31/12/2004 | Silver |
| THE PLYMOUTH INTERNATIONAL MARINA LIMITED | 03355435 | 17/04/1997 | 18/10/1997 | Not Trading |
| THE PLYMOUTH MARINA LIMITED | 03355354 | 17/04/1997 | 18/10/1997 | Not Trading |
| The Urban Consultancy Ltd | 02737631 | 17/08/1992 | 20/06/1997 | Dissolved |