| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| B L D Roofing Products Ltd | 01152053 | 23/10/1991 | Dissolved |
| Consortium Roofers Limited | 02019155 | 08/03/1991 | Dissolved |
| Cooke,Rodney,(Roofing) Ltd | 01563097 | 30/11/1991 | Dissolved |
| EQUIPHIRE (NORTHERN) LIMITED | 01549880 | 09/05/1991 | Dissolved |
| Engineered Waterproofing Systems Ltd | 01978545 | 01/10/1991 | Dissolved |
| Greyfriars Holdings Ltd | 04218328 | 13/10/2003 | Dissolved |
| ITB PENSION TRUSTEE LIMITED | 13992520 | 31/10/2022 | Not Trading |
| NEATREVEL LIMITED | 00138782 | 08/05/1991 | Dissolved |
| ROGERSON ROOFING LIMITED | 01923676 | 03/07/1991 | Dissolved |
| Rogerson Group (Roofing) Ltd | 01926099 | 03/07/1991 | Dissolved |
| Rogerson Group Ltd | 02568510 | 13/12/1991 | Dissolved |
| Rogerson Interiors Ltd | 02571210 | 02/01/1992 | Dissolved |
| Rogerson Microfloor Ltd | 02428592 | 03/10/1991 | Dissolved |
| Roofers Consortium Limited | 02360310 | 08/03/1992 | Dissolved |
| Roofers Corporation Ltd | 01772659 | 05/04/1991 | Dissolved |
| SPECIALIST FASTENING SYSTEMS (SCOTLAND) LIMITED | SC190611 | 21/08/2000 | Insolvent |
| United Roofing Supplies Limited | 02528436 | 07/08/1991 | Dissolved |
| W E Ceilings Ltd | 02306291 | 20/09/1991 | Dissolved |
| YORKSHIRE INDEPENDENT ROOFING TRAINING GROUP LIMITED | 05871480 | 16/03/2010 | Gold |
| Yorkshire Construction Safety Group Limited | 01221297 | 20/06/1995 | Dissolved |
| Yorkshire Roofing Group Training Association Limited | 02443583 | 31/10/1992 | Dissolved |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| ASSOCIATION OF INDEPENDENT CONSTRUCTION ADJUDICATORS LIMITED | 03199316 | 14/09/2004 | 11/01/2017 | Dissolved |
| BUILDING AND CIVIL ENGINEERING BENEFITS SCHEME TRUSTEE LIMITED | 01201576 | 25/03/2010 | 15/11/2016 | Not Trading |
| GEOFF NEAL (ROOFING) LIMITED | 03077747 | 16/10/2000 | 09/12/2002 | Silver |
| NFRC COMMERCIAL LIMITED | 02608182 | 25/04/2003 | 18/05/2006 | Bronze |
| NSCC LIMITED | 01572772 | 13/12/2000 | 13/01/2016 | Dissolved |
| PEOPLE'S PARTNERSHIP HOLDINGS LIMITED | 00377361 | 25/03/2010 | 15/11/2016 | Silver |
| ROOFCERT LIMITED | 02593905 | 25/04/2003 | 18/05/2006 | Amber |
| ROOFING INDUSTRY ALLIANCE | 03507885 | 23/04/1998 | 24/08/1999 | Gold |
| ROOFING INDUSTRY ALLIANCE | 03507885 | 23/04/1998 | 28/11/2003 | Gold |
| Rogerson Design Associates Ltd | 02737025 | 01/09/1992 | 16/04/2004 | Dissolved |
| T M S Contract Services Ltd | 02733047 | 21/07/1992 | 14/12/1992 | Dissolved |
| THE FLAT ROOFING ALLIANCE | 03412540 | 09/02/1999 | 19/02/2004 | Dissolved |
| THE FLAT ROOFING CONTRACTORS ADVISORY BOARD | 02505170 | 23/05/1992 | 10/03/1993 | Dissolved |
| THE NATIONAL FEDERATION OF ROOFING CONTRACTORS LIMITED | 02591364 | 15/05/1998 | 18/05/2006 | Silver |
| The Ria Hallmarked Scheme Board Ltd | 03861767 | 18/10/1999 | 30/10/2003 | Dissolved |
| United Roofing Contractors Ltd | 01765894 | 05/04/1991 | 05/05/1993 | Dissolved |
| WORLDSKILLS UK | 02535199 | 19/03/2008 | 03/03/2011 | Bronze |
| Waterside Roofing Ltd | 02781242 | 22/06/1999 | 25/03/2004 | Dissolved |
| Yorkshire Construction Safety Group Limited | 01221297 | 03/07/1992 | 02/03/1993 | Dissolved |
| Yorkshire Roofing Supplies Ltd | 02588124 | 04/03/1992 | 07/06/1993 | Dissolved |