| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| IONICS (U.K.) LIMITED | 01966229 | 04/12/2012 | Bronze |
| IONICS VENTURES LIMITED | 04315984 | 15/11/2007 | Amber |
| MONSAL HOLDINGS LIMITED | 06339215 | 28/07/2014 | One Red Flag |
| MONSAL LIMITED | 03040824 | 28/07/2014 | One Red Flag |
| ONDEO INDUSTRIAL SOLUTIONS UK LIMITED | 04319605 | 18/10/2019 | Bronze |
| PURITE HOLDINGS LIMITED | 03182773 | 18/10/2019 | Bronze |
| VEOLIA WATER PURIFICATION SYSTEMS LTD. | 01464412 | 18/10/2019 | One Red Flag |
| VEOLIA WATER TECHNOLOGIES & SOLUTIONS HOLDINGS UK LIMITED | 03794207 | 12/05/2022 | Amber |
| VEOLIA WATER TECHNOLOGIES & SOLUTIONS SERVICES UK LIMITED | 05043804 | 12/05/2022 | One Red Flag |
| VEOLIA WATER TECHNOLOGIES & SOLUTIONS UNITED KINGDOM | 00950340 | 12/05/2022 | One Red Flag |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|