| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| 01295019 LIMITED | 01295019 | 26/09/2005 | Dissolved |
| Advanced Technical Mouldings Ltd | 00366678 | 26/09/2005 | Dissolved |
| Aurora Plastics Ltd | 02404679 | 26/09/2005 | Dissolved |
| Autoplas (N I) Ltd | NI008322 | 03/09/2005 | Dissolved |
| B & H (Loughborough) Ltd | 02559001 | 26/09/2005 | Dissolved |
| B.& H.(Leicester)ltd | 00811578 | 26/09/2005 | Dissolved |
| CASTLE HARLAN-POLYPIPE EDUCATIONAL TRUST LIMITED | 06618782 | 12/06/2008 | Dissolved |
| Cameron Plastics Ltd | 00805710 | 26/09/2005 | Dissolved |
| Celmac Group Ltd | 02737426 | 26/09/2005 | Dissolved |
| Cheshire Precision Shapes Ltd | 02761152 | 26/09/2005 | Dissolved |
| DHFOUR LIMITED | 09710703 | 30/07/2015 | Gold |
| Eco-Vat Ltd | 03399302 | 26/09/2005 | Dissolved |
| Gca Windows Ltd | 02704787 | 26/09/2005 | Dissolved |
| HAMSARD 3169 LIMITED | 06905796 | 19/05/2009 | Dissolved |
| Kontinental Housecraft Ltd | 01106912 | 26/09/2005 | Dissolved |
| Midland Stom Ltd | 03205685 | 26/09/2005 | Dissolved |
| NORFLEX LIMITED | 01059118 | 26/09/2005 | Dissolved |
| Norflex Holdings Ltd | 02088625 | 26/09/2005 | Dissolved |
| OASIS LEISURE PRODUCTS LIMITED | 02546737 | 26/09/2005 | Not Trading |
| Oracstar (1997) Ltd | 01432322 | 26/09/2005 | Dissolved |
| PARAGON PLASTICS LIMITED | 00624754 | 26/09/2005 | Dissolved |
| Plastics Spools Ltd | 01520476 | 26/09/2005 | Dissolved |
| Polypipe Dormant Co No. 1 Ltd | 02299874 | 26/09/2005 | Dissolved |
| Polypipe Dormant Co No. 2 Ltd | 02768112 | 26/09/2005 | Dissolved |
| Polypipe Trustees Ltd | 03616330 | 26/09/2005 | Dissolved |
| Procell Plastics Ltd | 01635750 | 26/09/2005 | Dissolved |
| Rap Group Ltd | 02816635 | 26/09/2005 | Dissolved |
| Roman Publicity Ltd | 02371327 | 26/09/2005 | Dissolved |
| TAPIMATIC LIMITED | 04039975 | 26/09/2005 | Dissolved |
| in-Sink Equipment Ltd | 01374080 | 26/09/2005 | Dissolved |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| ALIAXIS UK LIMITED | 01698059 | 01/05/2003 | 31/12/2003 | Bronze |
| CME CHINA INVESTMENTS LIMITED | 05256338 | 26/09/2005 | 30/01/2008 | Dissolved |
| CONSTRUCTION PRODUCTS ASSOCIATION | 03861752 | 23/04/2013 | 11/04/2017 | Gold |
| DHM PLASTICS LIMITED | 00547743 | 16/09/1996 | 31/08/2001 | Gold |
| FERROB VENTILATION LTD | 09263729 | 14/10/2014 | 02/10/2017 | Dissolved |
| Firstpoint Ltd | 01307801 | 29/06/1991 | 01/01/1994 | Dissolved |
| GENUIT GROUP PLC | 06059130 | 11/07/2007 | 02/10/2017 | Gold |
| GENUIT LIMITED | 03101115 | 26/09/2005 | 02/10/2017 | Insolvent |
| HAYES PIPES (ULSTER) LIMITED | NI009595 | 15/09/2010 | 02/10/2017 | Dissolved |
| HENDERSON-BOSTWICK INDUSTRIAL DOORS LIMITED | 01129675 | 27/08/1993 | 13/09/1996 | Dissolved |
| HOME VENTILATION (IRELAND) LIMITED | NI027937 | 18/08/2015 | 02/10/2017 | Dissolved |
| INSULATED DAMP-PROOF COURSE LIMITED | 03134569 | 26/09/2005 | 02/10/2017 | Dissolved |
| MARLEY ALUTEC LIMITED | 02796063 | 14/10/1996 | 31/08/2001 | Dissolved |
| MASON PINDER (TOOLMAKERS) LIMITED | 01316158 | 26/09/2005 | 02/10/2017 | Dissolved |
| NU-OVAL ACQUISITIONS 1 LIMITED | 06206692 | 18/08/2015 | 02/10/2017 | Insolvent |
| NU-OVAL ACQUISITIONS 2 LIMITED | 06206682 | 18/08/2015 | 02/10/2017 | Insolvent |
| NU-OVAL ACQUISITIONS 3 LIMITED | 06206676 | 18/08/2015 | 02/10/2017 | Insolvent |
| NUAIRE LIMITED | 00877308 | 18/08/2015 | 02/10/2017 | Not Trading |
| NUHOLD LIMITED | 02897144 | 18/08/2015 | 02/10/2017 | Dissolved |
| ORACSTAR LIMITED | 02273383 | 26/09/2005 | 02/10/2017 | Insolvent |
| PIPE HOLDINGS 1 PLC | 05472465 | 14/08/2007 | 02/10/2017 | Not Trading |
| PIPE HOLDINGS 2 LIMITED | 05491747 | 14/08/2007 | 02/10/2017 | Not Trading |
| PIPE HOLDINGS PLC | 05154231 | 14/08/2007 | 02/10/2017 | Silver |
| PLUMBEXPRESS LIMITED | 04040435 | 26/09/2005 | 02/10/2017 | Dissolved |
| POLYPIPE (IRELAND) LTD | NI025570 | 15/09/2010 | 02/10/2017 | Insolvent |
| POLYPIPE (ULSTER) LIMITED | NI016612 | 12/10/2005 | 02/10/2017 | Not Trading |
| POLYPIPE BUILDING PRODUCTS LIMITED | 02729243 | 26/09/2005 | 02/10/2017 | Not Trading |
| POLYPIPE CIVILS LIMITED | 02628216 | 07/01/2004 | 01/07/2005 | Not Trading |
| POLYPIPE COMMERCIAL BUILDING SYSTEMS LIMITED | 02561775 | 26/09/2005 | 02/10/2017 | Dissolved |
| POLYPIPE GROUP 1 LIMITED | 04877942 | 18/08/2015 | 02/10/2017 | Insolvent |
| POLYPIPE LIMITED | 01099323 | 02/09/2005 | 02/10/2017 | Silver |
| POLYPIPE T.D.I. LIMITED | 02113078 | 26/09/2005 | 02/10/2017 | Dissolved |
| POLYPIPE TERRAIN HOLDINGS LIMITED | 03689125 | 02/07/2007 | 02/10/2017 | Insolvent |
| POLYPIPE TERRAIN LIMITED | 00761885 | 02/07/2007 | 02/10/2017 | Insolvent |
| POLYPIPE TRADING LIMITED | 01720710 | 26/09/2005 | 02/10/2017 | Insolvent |
| POLYPIPE VENTILATION LIMITED | 01977055 | 03/10/2005 | 02/10/2017 | Insolvent |
| Park Air Services Plc | 00246812 | 03/08/1993 | 20/09/1994 | Dissolved |
| R. St. M. Ltd | 03964109 | 04/09/2000 | 31/08/2003 | Dissolved |
| REIGATE GRAMMAR SCHOOL | 03954365 | 01/09/2003 | 17/03/2012 | Silver |
| ROBIMATIC LIMITED | 01507994 | 26/09/2005 | 02/10/2017 | Bronze |
| SURESTOP LIMITED | 05873694 | 30/01/2015 | 02/10/2017 | Gold |
| WIRQUIN LTD | 02136997 | 26/09/2005 | 30/01/2008 | One Red Flag |