| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| BIOTEC RENEWABLES LIMITED | 14829481 | 26/04/2023 | Bronze |
| CHM PROCESS LIMITED | 11559383 | 08/09/2018 | Dissolved |
| EBT TECHNICAL SERVICES LIMITED | 10456661 | 01/11/2016 | Dissolved |
| ECOBIOENERGY LTD. | 06406156 | 01/01/2010 | Dissolved |
| ECOBIOGAS LTD. | 06405721 | 01/01/2010 | Dissolved |
| ECOBIOTEC HOLDINGS LIMITED | 06406157 | 01/01/2010 | Dissolved |
| PAL- PROJECT SERVICES LIMITED | 06543513 | 25/03/2008 | One Red Flag |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| Avocet Resource Management Ltd | 01192219 | 16/09/1999 | 17/05/2000 | Dissolved |
| CASTLE BUILDING PRODUCTS LIMITED | 01041697 | 12/03/2003 | 28/02/2007 | Not Trading |
| CASTLE CEMENT (CHATBURN) LIMITED | 00036443 | 12/03/2003 | 28/02/2007 | Not Trading |
| CASTLE CEMENT (CLYDE) LIMITED | 00035025 | 12/03/2003 | 28/02/2007 | Not Trading |
| CASTLE CEMENT (KETTON) LIMITED | 00231961 | 12/03/2003 | 28/02/2007 | Not Trading |
| CASTLE CEMENT (PADESWOOD) LIMITED | 01204831 | 12/03/2003 | 28/02/2007 | Not Trading |
| CASTLE CEMENT (PITSTONE) LIMITED | 01206191 | 12/03/2003 | 28/02/2007 | Not Trading |
| CASTLE CEMENT (RIBBLESDALE) LIMITED | 00300714 | 12/03/2003 | 28/02/2007 | Not Trading |
| CASTLE CEMENT LIMITED | 02182762 | 01/07/1995 | 28/02/2007 | Gold |
| CASTLE LIME LIMITED | 00788617 | 12/03/2003 | 28/02/2007 | Not Trading |
| CEMENT CONSULTANCY ASSOCIATES LIMITED | 03658788 | 01/11/2008 | 11/11/2012 | Dissolved |
| CLYDE CEMENT LIMITED | 01041726 | 12/03/2003 | 28/02/2007 | Dissolved |
| Fraser McNaughton Ltd | 00981603 | 24/11/1999 | 17/05/2000 | Dissolved |
| HC FUELS LIMITED | 03568686 | 27/05/1998 | 28/02/2007 | Gold |
| HEIDELBERG MATERIALS CEMENT HOLDING LIMITED | 02201396 | 12/03/2003 | 28/02/2007 | Gold |
| HEIDELBERG MATERIALS UK LIMITED | 04968889 | 28/01/2004 | 28/02/2007 | Not Trading |
| KETTON CEMENT LIMITED | 01040814 | 12/03/2003 | 28/02/2007 | Not Trading |
| LEHIGH UK LIMITED | 04113976 | 12/03/2003 | 28/02/2007 | Gold |
| MANTLE & LLAY LIMITED | 01721406 | 12/03/2003 | 28/02/2007 | Not Trading |
| Marplace (Number 308) Ltd | 01557357 | 16/09/1999 | 17/05/2000 | Dissolved |
| RAREHOLD 1999 LIMITED | 03785575 | 16/09/1999 | 17/05/2000 | Dissolved |
| RAREHOLD LIMITED | 02588917 | 16/09/1999 | 17/05/2000 | Dissolved |
| RIBBLESDALE CEMENT LIMITED | 01041776 | 12/03/2003 | 28/02/2007 | Dissolved |
| SCANCEM ENERGY AND RECOVERY LIMITED | 03568680 | 27/05/1998 | 28/02/2007 | Not Trading |
| SCANCEM INTERNATIONAL LIMITED | 02661969 | 12/03/2003 | 28/02/2007 | Not Trading |
| SCANCEM RECOVERY LIMITED | 03568684 | 27/05/1998 | 28/02/2007 | Gold |
| SCANCEM SUPPLY LIMITED | 02528538 | 12/03/2003 | 28/02/2007 | Not Trading |
| Scanfuel (U K) Ltd | 02557793 | 16/09/1999 | 17/05/2000 | Dissolved |
| THE CONCRETE CENTRE LIMITED | 04667308 | 17/02/2003 | 28/02/2007 | Amber |
| TUNNEL CEMENT LIMITED | 01205542 | 12/03/2003 | 28/02/2007 | Not Trading |