| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| Beaver Intelligence Limited | 02195913 | 25/04/1991 | Dissolved |
| Beaver Intelligence Limited | 02195913 | 25/04/1991 | Dissolved |
| Beaver Parametrics Limited | 02195912 | 25/04/1991 | Dissolved |
| Beaver Parametrics Limited | 02195912 | 25/04/1991 | Dissolved |
| C G W Engineering Ltd | 00461758 | 25/12/1990 | Dissolved |
| CALLVEST PLC | 00911271 | 04/08/1991 | Insolvent |
| Callvest Holdings Ltd | 02594378 | 27/09/1991 | Dissolved |
| G A S V Ltd | 00389272 | 25/12/1990 | Dissolved |
| HUNTER GROUP PLC | 02298733 | 24/12/1991 | Dissolved |
| Kent Tube & Fittings Limited | 00787964 | 25/12/1990 | Dissolved |
| Kilnhurst Engineering Ltd | 00375193 | 27/12/1991 | Dissolved |
| North Luton Systems Ltd | 01800339 | 25/12/1990 | Dissolved |
| Rawe Transport(Woolwich)limited | 00414019 | 25/12/1990 | Dissolved |
| The Acoustic Holding & Manufacturing Co Ltd | 01703473 | 22/06/1991 | Dissolved |
| WATERLOO AIR MANAGEMENT PLC. | 00697059 | 25/12/1990 | Dissolved |
| Waterloo Ozonair Ltd | 00131863 | 25/12/1990 | Dissolved |
| Woodway Ltd | 02666001 | 06/02/1992 | Dissolved |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| Construction Manufacturers Partnering Association | 04234916 | 14/06/2001 | 02/12/2003 | Dissolved |
| HUNTER PLASTICS LIMITED | 02600539 | 11/04/1992 | 31/12/1992 | Dissolved |
| Plastiers Ltd | 00421825 | 27/12/1991 | 20/12/2004 | Dissolved |
| RESCO RAILWAYS LIMITED | 01385270 | 25/12/1990 | 16/03/2009 | Dissolved |
| SHR PROJECTS LIMITED | 02466246 | 02/02/1991 | 31/12/2011 | Dissolved |
| THE NEW BEACON EDUCATIONAL TRUST LIMITED | 00951855 | 19/02/1998 | 15/11/2006 | Dissolved |
| The Britannia Locomotive Co Ltd | 00970562 | 27/09/2000 | 09/10/2002 | Dissolved |
| The Britannia Locomotive Co Ltd | 00970562 | 06/05/1991 | 09/03/2001 | Dissolved |
| WATERLOO GROUP LIMITED | 04934917 | 01/12/2009 | 10/03/2020 | Silver |