| Name | Company Number | Date Appointed | Rating |
|---|
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| CLARIO TECH LIMITED | 12229999 | 26/09/2019 | 06/10/2020 | Dissolved |
| CLARIO TECH SUPPORT & DEVELOPMENT LIMITED | 12653393 | 08/06/2020 | 20/10/2020 | Dissolved |
| PARTS WASH LIMITED | 04901241 | 12/06/2014 | 09/01/2018 | Not Trading |
| PARTS WASH UK LIMITED | 05048656 | 12/06/2014 | 09/01/2018 | Not Trading |
| Q. E. D. CHEMICAL SOLUTIONS LIMITED | 04443088 | 12/06/2014 | 09/01/2018 | Not Trading |
| SAFETY-KLEEN EUROPE LIMITED | 03686221 | 11/04/2011 | 09/01/2018 | One Red Flag |
| SAFETY-KLEEN U.K. LIMITED | 01190039 | 12/06/2014 | 09/01/2018 | Bronze |
| SAFETY-KLEEN UK (EUROPE) LIMITED | 03673963 | 12/06/2014 | 09/01/2018 | Bronze |
| SAFETY-KLEEN UK (FRANCE) LIMITED | 03673966 | 11/04/2011 | 09/01/2018 | Amber |
| SAFETYKLEEN FINANCE LIMITED | 06590913 | 11/04/2011 | 09/01/2018 | Amber |
| SAFETYKLEEN GROUP SERVICES LIMITED | 06544285 | 12/06/2014 | 09/01/2018 | One Red Flag |
| STORMAGIC LIMITED | 05706971 | 27/05/2021 | 21/07/2022 | Amber |
| WP MIDCO1 LIMITED | 06544559 | 17/12/2013 | 09/01/2018 | One Red Flag |
| WP MIDCO2 LIMITED | 06544394 | 17/12/2013 | 09/01/2018 | Silver |
| WP MIDCO3 LIMITED | 06544475 | 22/04/2010 | 09/01/2018 | Silver |
| WP SAFETY-KLEEN LIMITED | 06544225 | 22/04/2010 | 23/07/2015 | Silver |
| WP SK FRANCE LIMITED | 05134646 | 11/04/2011 | 09/01/2018 | One Red Flag |
| WP SK HOLDINGS LIMITED | 05134411 | 11/04/2011 | 09/01/2018 | Silver |
| WP SK LIMITED | 05134639 | 11/04/2011 | 09/01/2018 | Silver |
| WP SK MIDCO LIMITED | 05385905 | 11/04/2011 | 09/01/2018 | Bronze |