| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| FALLEN STOCK DISPOSAL LIMITED | 05395673 | 10/04/2005 | Dissolved |
| MAYREX ENTERPRISES LTD | 04407386 | 08/08/2002 | Dissolved |
| W P S 2006 LIMITED | 04822509 | 23/09/2003 | Dissolved |
| WPSE LIMITED | 03932846 | 15/11/2001 | Dissolved |
| Wre Disposal Services Ltd | 05349856 | 14/03/2005 | Dissolved |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| CE HOLDINGS LIMITED | 06279290 | 19/10/2007 | 14/08/2012 | Bronze |
| CREDENTIAL ENVIRONMENTAL LIMITED | SC223342 | 19/04/2005 | 12/10/2007 | Silver |
| INDUSTRIAL SYMBIOSIS (ASIA) LIMITED | 06090414 | 08/02/2007 | 24/07/2009 | Dissolved |
| INDUSTRIAL SYMBIOSIS (LATIN AMERICA & CARIBBEAN) LIMITED | 06090402 | 08/02/2007 | 24/07/2009 | Dissolved |
| INDUSTRIAL SYMBIOSIS LIMITED | 05350623 | 02/02/2005 | 30/01/2009 | Silver |
| INTERNATIONAL SYNERGIES LIMITED | 05586343 | 16/11/2005 | 24/07/2009 | Silver |
| INTERNATIONAL SYNERGIES LIMITED | 05586343 | 16/11/2005 | 08/06/2009 | Silver |
| Industrial Symbiosis (Africa) Ltd | 06090466 | 08/02/2007 | 24/07/2009 | Dissolved |
| Industrial Symbiosis (Europe) Ltd | 06090453 | 08/02/2007 | 24/07/2009 | Dissolved |
| Industrial Symbiosis (North America) Ltd | 06090448 | 08/02/2007 | 24/07/2009 | Dissolved |
| Industrial Symbiosis (Oceania) Ltd | 06090456 | 08/02/2007 | 24/07/2009 | Dissolved |
| Isl Praxis Ltd | 06350579 | 22/08/2007 | 24/07/2009 | Dissolved |
| NISP LIMITED | 05270574 | 04/02/2005 | 24/07/2009 | Not Trading |
| WASTE PERSE LIMITED | 05350014 | 14/03/2005 | 30/06/2009 | Dissolved |