| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| ARITAUR PROJECTS LTD | 09834926 | 21/10/2015 | Silver |
| BYWAY STRUCTURES LTD | 11713751 | 05/12/2018 | Silver |
| CLEEVE NURSERY LIMITED | 11390536 | 31/05/2018 | Bronze |
| ELITE (PROJECTS) LIMITED | 09623362 | 04/06/2015 | Not Trading |
| LANTAU LTD | 06095633 | 20/02/2007 | Silver |
| P N PROJECTS LTD | 06897627 | 08/05/2009 | Not Trading |
| STRATA ENVIRONMENTAL GROUP LTD | 07294766 | 24/06/2010 | Dissolved |
| Universal Asbestos Management Ltd | 05986394 | 18/04/2008 | Dissolved |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| CLARKE BOND CIVILS LIMITED | 03823210 | 01/11/2006 | 31/03/2008 | Insolvent |
| ELITE ENVIRONMENTAL (CIVILS) LTD | 06962323 | 14/07/2009 | 30/11/2021 | Silver |
| ELITE ENVIRONMENTAL (UK) LIMITED | 05061373 | 02/03/2004 | 01/04/2014 | Dissolved |
| INSOLCO (MIDLANDS) LIMITED | 06450721 | 11/12/2007 | 31/03/2008 | Dissolved |
| INSOLCO (SOUTH EAST) LIMITED | 06449948 | 11/12/2007 | 31/03/2008 | Dissolved |
| INSOLCO (SOUTH WEST) LIMITED | 06454920 | 17/12/2007 | 31/03/2008 | Dissolved |
| PROJECT HARTLAND LTD | 07842264 | 10/11/2011 | 08/07/2016 | Silver |