| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| CLEANPITT LTD | 12807675 | 12/08/2020 | Bronze |
| HARRIS ARCHITECTURAL ENGINEERING LIMITED | 04971798 | 01/08/2016 | Dissolved |
| HATTON REDWOOD LIMITED | 08968921 | 24/09/2020 | Bronze |
| LONG ENGINEERING LIMITED | 02475101 | 01/08/2016 | Bronze |
| REDWOOD ENVIRONMENTAL SERVICES LIMITED | 04932863 | 24/09/2020 | Silver |
| REDWOOD HIRE SALES AND SERVICE LTD | 07792796 | 24/09/2020 | Silver |
| REDWOOD WASTE TREATMENT CENTRE LIMITED | 07286808 | 16/06/2010 | Bronze |
| SIENTI LIMITED | 09826848 | 01/08/2016 | Dissolved |
| TREADMARK LIMITED | 06062957 | 15/05/2007 | Silver |
| TREATMENT WORKING LIMITED | 15659165 | 18/04/2024 | Amber |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| HARRIS ARCHITECTURAL ENGINEERING LIMITED | 04971798 | 20/10/2015 | 25/07/2016 | Dissolved |
| LONG ENGINEERING LIMITED | 02475101 | 20/10/2015 | 25/07/2016 | Bronze |
| SIENTI LIMITED | 09826848 | 15/10/2015 | 25/07/2016 | Dissolved |