| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| Equipbuild Ltd | 03125412 | 20/11/1995 | Dissolved |
| Keel Haul Ltd | 04366393 | 10/05/2002 | Dissolved |
| Keel Haul Ltd | 04366393 | 10/05/2002 | Dissolved |
| ROMAG HOLDINGS PLC | 02820227 | 21/07/1993 | Dissolved |
| SHK LIMITED | 00988493 | 22/10/1991 | Dissolved |
| Tulip Timber Ltd | 02871108 | 18/02/1994 | Dissolved |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| DERWENTSIDE ENTERPRISE AGENCY C.I.C | 01674373 | 29/09/1991 | 25/11/1997 | Silver |
| INTASOLVE LIMITED | 02378885 | 01/09/2000 | 11/07/2007 | Not Trading |
| ROM REALISATIONS LIMITED | 01549869 | 13/11/1991 | 01/10/2009 | Dissolved |
| Securex Displays Ltd | 02218065 | 13/11/1991 | 21/02/1997 | Dissolved |
| ZYTRONIC DISPLAYS LIMITED | 00379908 | 13/11/1991 | 11/07/2007 | One Red Flag |
| ZYTRONIC GLASS PRODUCTS LIMITED | 03881229 | 06/03/2000 | 28/04/2000 | Not Trading |
| ZYTRONIC PLC | 03881244 | 29/02/2000 | 10/02/2011 | Silver |