| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| Advanced Materials Recycling Ltd | 04127477 | 19/12/2000 | Dissolved |
| Alm Consulting Ltd | 03767901 | 29/06/1999 | Dissolved |
| Clarifie Ltd | 04804093 | 11/09/2003 | Dissolved |
| Combined Environmental Sciences Ltd | 04255448 | 19/07/2001 | Dissolved |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| Environmental Project Management Services Ltd | 03767939 | 09/06/1999 | 07/01/2000 | Dissolved |
| Eurotec Land Remediation Ltd | 02871231 | 26/03/1994 | 31/07/1994 | Dissolved |
| FIVE WATERS INTERNATIONAL LTD | 06675459 | 18/11/2009 | 23/04/2010 | Dissolved |
| SIVEX LIMITED | 05349477 | 07/07/2008 | 28/07/2010 | Dissolved |