| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| DEEPWILLOW LIMITED | 07028890 | 23/06/2010 | Gold |
| ISO SYSTEMS (PVC-U) LIMITED | 03460092 | 03/11/1998 | Dissolved |
| KWEST LIMITED | 02467792 | 07/02/1993 | Dissolved |
| KWEST WINDOWS LIMITED | 01489817 | 09/09/1998 | Dissolved |
| OPTIONS (S.W.) LIMITED | 04936905 | 20/10/2003 | Amber |
| PENTWIN MANAGEMENT SERVICES LLP | OC383888 | 28/03/2013 | Dissolved |
| PIMCO 2904 LIMITED | 07742234 | 16/08/2011 | Dissolved |
| PROPEX LIMITED | 03167669 | 01/03/1996 | Bronze |
| ROOFLYNE LIMITED | 03316240 | 15/04/1997 | Dissolved |
| TRIMS AND THINGS LIMITED | 02814005 | 09/09/1998 | Dissolved |
| WINEP 10 LIMITED | 03311825 | 21/02/1997 | Dissolved |
| WINEP 11 LIMITED | 02883860 | 31/01/1994 | Dissolved |
| WINEP 12 LIMITED | 03121795 | 03/11/1995 | Dissolved |
| WINEP 13 LIMITED | 02969291 | 03/02/1995 | Dissolved |
| WINEP 14 LIMITED | 01939048 | 28/05/1992 | Dissolved |
| WINEP 15 LIMITED | 03081662 | 30/05/2008 | Dissolved |
| WINEP 4 LIMITED | 03452129 | 08/12/1997 | Dissolved |
| WINEP 9 LIMITED | 02887554 | 26/07/1994 | Dissolved |
| WINEP2 LIMITED | 05414006 | 27/04/2005 | Silver |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| AMAZON CIVILS LIMITED | 05980925 | 08/10/2010 | 23/07/2014 | Not Trading |
| ASHGROVE ONE LIMITED | 09579102 | 07/05/2015 | 28/05/2024 | One Red Flag |
| ECODEK LIMITED | 03280505 | 30/05/2008 | 23/07/2014 | Not Trading |
| EPWIN GROUP PLC | 07742256 | 16/08/2011 | 17/06/2014 | Silver |
| HIS SYSTEMS LIMITED | 03256096 | 14/10/1996 | 29/09/2014 | Not Trading |
| ILCO REFRIGERATION LIMITED | 01324040 | 30/10/2015 | 28/05/2024 | Silver |
| ISO SYSTEMS (PVC-U) LIMITED | 03460092 | 08/12/1997 | 03/11/1998 | Dissolved |
| MCALPINE GRANT ILCO LIMITED | 03691073 | 30/10/2015 | 28/05/2024 | Bronze |
| PENTWIN GROUP LIMITED | 07742244 | 16/08/2011 | 28/05/2024 | Silver |
| PENTWIN INVESTMENTS LIMITED | 09040842 | 15/05/2014 | 28/05/2024 | Not Trading |
| PERMADOOR LIMITED | 02358855 | 15/06/1994 | 23/07/2014 | Not Trading |
| PLASTAL COMMERCIAL LIMITED | 01845594 | 28/05/1992 | 23/07/2014 | Not Trading |
| PROFILE 22 SYSTEMS LIMITED | 02467789 | 07/02/1993 | 23/07/2014 | Not Trading |
| QUANTAL (HOLDINGS) LIMITED | 07742286 | 16/08/2011 | 06/06/2012 | Dissolved |
| QUANTAL LIMITED | 07742095 | 16/08/2011 | 06/06/2012 | Dissolved |
| R J P REFRIGERATION CONTRACTORS LIMITED | 03344678 | 30/10/2015 | 28/05/2024 | Bronze |
| SCHNICKS LIMITED | 01542490 | 28/05/1992 | 23/07/2014 | Not Trading |
| SPECIALIST BUILDING DISTRIBUTION LTD | 02599297 | 19/01/2012 | 23/07/2014 | Not Trading |
| SPECIALIST BUILDING PRODUCTS LIMITED | 01268689 | 28/05/1992 | 23/07/2014 | Bronze |
| SPRINT TOOL AND DIE LIMITED | 02379659 | 14/12/2015 | 28/05/2024 | One Red Flag |
| SUBFRAMES UK LIMITED | 04633151 | 16/01/2015 | 28/05/2024 | Bronze |
| SWISH BUILDING PRODUCTS LIMITED | 02969289 | 29/11/1994 | 23/07/2014 | Not Trading |
| TOWER PROJECTS LIMITED | 01507409 | 28/05/1992 | 02/11/1994 | Dissolved |
| VENTURE BUILDING PLASTICS LIMITED | 04456068 | 19/10/2011 | 23/07/2014 | Not Trading |
| WINEP 5 LIMITED | 02534252 | 31/12/1996 | 23/07/2014 | Not Trading |
| WINEP 50 LIMITED | 02333227 | 30/04/2004 | 23/07/2014 | Not Trading |
| WINEP 51 LIMITED | 03536185 | 10/09/2004 | 23/07/2014 | Not Trading |
| WINEP 52 LIMITED | 02659759 | 05/11/1992 | 23/07/2014 | Not Trading |
| WINEP 53 LIMITED | 01496449 | 28/05/1992 | 23/07/2014 | Not Trading |
| WINEP 54 LIMITED | 00982490 | 28/05/1992 | 23/07/2014 | Not Trading |
| WINEP 55 LIMITED | 02079769 | 28/05/1992 | 23/07/2014 | Not Trading |
| WINEP 56 LIMITED | 01256711 | 28/05/1992 | 23/07/2014 | Not Trading |
| WINEP 57 LIMITED | 04450145 | 20/06/2005 | 23/07/2014 | Not Trading |
| WINEP 60 LIMITED | 03832221 | 24/11/1999 | 19/12/2012 | Not Trading |
| WINEP 61 LIMITED | 01506177 | 31/05/1992 | 19/12/2012 | Not Trading |
| WINEP 693 LIMITED | 02203179 | 28/05/1992 | 23/07/2014 | Not Trading |
| WINEP3 LIMITED | 01808151 | 11/06/1998 | 23/07/2014 | Not Trading |
| WREKIN WINDOWS LIMITED | 01866745 | 28/05/1992 | 23/07/2014 | Not Trading |