| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| EVETS CONSULTING LIMITED | 07921811 | 24/01/2012 | Silver |
| Ecd Energy & Environment Ltd | 03023359 | 30/08/2001 | Dissolved |
| Harvey McGill & Hayes Ltd | 02732924 | 29/03/1996 | Dissolved |
| London-Moscow Design Consortium Limited | 02622080 | 19/06/1991 | Dissolved |
| Ofice Ltd | 01719712 | 09/10/1992 | Dissolved |
| Oscar Faber Applied Research Ltd | 02240994 | 09/10/1992 | Dissolved |
| THE WORSHIPFUL COMPANY OF PLUMBERS' PLUMBING MUSEUM AND WORKSHOP TRUST | 06253985 | 25/11/2015 | Silver |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| AECOM HOLDINGS LIMITED | 03745592 | 21/11/2001 | 30/12/2011 | Bronze |
| AECOM LIMITED | 01846493 | 05/03/2002 | 30/12/2011 | Gold |
| CONSTRUCTION INDUSTRY RELIEF, ASSISTANCE AND SUPPORT FOR THE HOMELESS AND HOSPICES LIMITED | 03175906 | 22/03/2006 | 09/11/2016 | Silver |
| Country Houses Association (Albury Park) Limited | 02733306 | 04/07/1995 | 01/04/1996 | Dissolved |
| Country Houses Association (Aynhoe Park) Ltd | 02731422 | 04/07/1995 | 01/04/1996 | Dissolved |
| Country Houses Association (Danny) Ltd | 02733309 | 04/07/1995 | 01/04/1996 | Dissolved |
| Country Houses Association (Flete) Ltd | 02735606 | 04/07/1995 | 01/04/1996 | Dissolved |
| Country Houses Association (Gosfield Hall) Ltd | 02735604 | 04/07/1995 | 01/04/1996 | Dissolved |
| Country Houses Association (Great Maytham Hall) Limited | 02734431 | 04/07/1995 | 01/04/1996 | Dissolved |
| Country Houses Association (Greathed Manor) Limited | 02736536 | 04/07/1995 | 01/04/1996 | Dissolved |
| Country Houses Association (Pythouse) Ltd | 02732631 | 04/07/1995 | 01/04/1996 | Dissolved |
| Country Houses Association (Swallowfield Park) Limited | 02736209 | 04/07/1995 | 01/04/1996 | Dissolved |
| OSCAR FABER CONSULT LIMITED | 01724185 | 07/02/1994 | 30/12/2011 | Dissolved |
| OSCAR FABER CONSULTING ENGINEERS LIMITED | 01724186 | 24/10/1991 | 30/12/2011 | Dissolved |
| OSCAR FABER GROUP LIMITED | 01725811 | 01/01/1996 | 30/09/2002 | Dissolved |
| OSCAR FABER PLC | 01723740 | 24/10/1991 | 30/12/2011 | Insolvent |
| OSCAR FABER SERVICES LIMITED | 02454342 | 01/08/2010 | 30/12/2011 | Dissolved |
| OSCAR FABER TRUSTEES LIMITED | 02706993 | 05/10/2001 | 30/12/2011 | Insolvent |