| Name | Company Number | Date Appointed | Rating |
|---|
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| SAFETY-KLEEN EUROPE LIMITED | 03686221 | 12/06/2014 | 02/07/2020 | One Red Flag |
| SAFETY-KLEEN U.K. LIMITED | 01190039 | 12/06/2014 | 02/07/2020 | Silver |
| SAFETY-KLEEN UK (EUROPE) LIMITED | 03673963 | 12/06/2014 | 02/07/2020 | Silver |
| SAFETY-KLEEN UK (FRANCE) LIMITED | 03673966 | 12/06/2014 | 02/07/2020 | Silver |
| SAFETYKLEEN FINANCE LIMITED | 06590913 | 12/06/2014 | 02/07/2020 | Silver |
| SAFETYKLEEN GROUP SERVICES LIMITED | 06544285 | 01/01/2014 | 02/07/2020 | One Red Flag |
| SHILTON BIDCO LIMITED | 10747281 | 13/07/2017 | 02/07/2020 | Bronze |
| SHILTON HOLDCO LIMITED | 10747207 | 13/07/2017 | 02/07/2020 | One Red Flag |
| SHILTON MIDCO 2 LIMITED | FC034868 | 08/12/2017 | 02/07/2020 | Bronze |
| TECHNOWASH LIMITED | 04032581 | 29/02/2016 | 02/07/2020 | One Red Flag |
| WP MIDCO1 LIMITED | 06544559 | 12/06/2014 | 02/07/2020 | Amber |
| WP MIDCO2 LIMITED | 06544394 | 12/06/2014 | 02/07/2020 | Silver |
| WP MIDCO3 LIMITED | 06544475 | 01/01/2014 | 02/07/2020 | Silver |
| WP SAFETY-KLEEN LIMITED | 06544225 | 01/01/2014 | 02/07/2020 | Silver |
| WP SK FRANCE LIMITED | 05134646 | 12/06/2014 | 02/07/2020 | Amber |
| WP SK HOLDINGS LIMITED | 05134411 | 12/06/2014 | 02/07/2020 | Gold |
| WP SK LIMITED | 05134639 | 12/06/2014 | 02/07/2020 | Gold |
| WP SK MIDCO LIMITED | 05385905 | 12/06/2014 | 02/07/2020 | Bronze |