| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| CCS PIPPBROOK LIMITED | 00884029 | 03/04/1991 | Dissolved |
| LIFE EDUCATION (BRADFORD) LIMITED | 02474511 | 06/03/2017 | Silver |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| CUMBRIA WASTE MANAGEMENT LTD. | 02665973 | 04/01/1994 | 09/09/1998 | Silver |
| CUMBRIA WASTE RECYCLING LIMITED | 03162439 | 09/04/1996 | 09/09/1998 | Silver |
| EMERALD GROUP HOLDINGS LIMITED | 03599896 | 15/01/2018 | 10/06/2022 | Silver |
| ENVIRONMENTAL AGGREGATES LIMITED | 03450086 | 29/03/1999 | 01/05/2003 | Insolvent |
| H C SLINGSBY P L C | 00452716 | 01/11/2005 | 30/06/2016 | Silver |
| LAKELAND WASTE MANAGEMENT LIMITED | 02728867 | 04/01/1994 | 09/09/1998 | Bronze |
| NUFARM LIMITED | 00087911 | 01/03/2006 | 18/02/2008 | Not Trading |
| Robinson Brothers of Keighley (Airedale Demolitions) Ltd | 01096893 | 05/04/2001 | 21/07/2003 | Dissolved |
| Wbf Realisations Ltd | 02322108 | 03/11/1998 | 21/07/2003 | Dissolved |
| Webfell (Tadcaster) Ltd | 02694314 | 03/11/1998 | 21/07/2003 | Dissolved |
| Webfell (York) Ltd | 02694312 | 03/11/1998 | 21/07/2003 | Dissolved |
| Webfell Group Ltd | 03612473 | 25/08/1998 | 21/07/2003 | Dissolved |
| Webfell Ltd | 01444260 | 03/11/1998 | 21/07/2003 | Dissolved |
| Webfell Waste Management Ltd | 02684939 | 03/11/1998 | 21/07/2003 | Dissolved |