| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| BRABAZON ESTATES LIMITED | 12374097 | 20/12/2019 | Not Trading |
| DIALS AT BRABAZON MANAGEMENT COMPANY LIMITED | 13048641 | 27/11/2020 | Not Trading |
| FLIPPER LIMITED | 10826922 | 20/06/2017 | Dissolved |
| GENECO (SOUTH WEST) LIMITED | 09326393 | 02/12/2014 | One Red Flag |
| GENECO LIMITED | 06842738 | 16/03/2010 | One Red Flag |
| NAVIGATOR AT BRABAZON MANAGEMENT COMPANY LIMITED | 13047596 | 27/11/2020 | Not Trading |
| TURNBULL INFRASTRUCTURE & UTILITIES LIMITED | 03652435 | 16/03/2010 | Silver |
| WATER 2 BUSINESS LIMITED | 08518831 | 15/09/2017 | Bronze |
| WESSEX CONCIERGE LIMITED | 10826537 | 20/06/2017 | Dissolved |
| WESSEX ELECTRICITY UTILITIES LIMITED | 06718971 | 16/03/2010 | Dissolved |
| WESSEX PROPERTY SERVICES LIMITED | 02277590 | 16/03/2010 | Dissolved |
| WESSEX UTILITY SOLUTIONS LIMITED | 06718997 | 16/03/2010 | Silver |
| WESSEX WATER COMMERCIAL LIMITED | 02372795 | 16/03/2010 | Dissolved |
| WESSEX WATER ENTERPRISES LIMITED | 02279151 | 16/03/2010 | Bronze |
| WESSEX WATER LIMITED | 02366633 | 16/03/2010 | Amber |
| WESSEX WATER SERVICES FINANCE PLC | 03704265 | 16/03/2010 | Silver |
| WESSEX WATER TRUSTEE COMPANY LIMITED | 02278257 | 16/03/2010 | Not Trading |
| YTL ARENA LIMITED | 13289074 | 07/07/2021 | One Red Flag |
| YTL CONSTRUCTION (UK) LIMITED | 14897501 | 08/10/2024 | Not Trading |
| YTL DEVELOPMENTS (UK) LIMITED | 10495341 | 18/01/2018 | Bronze |
| YTL HOMES LTD | 10017065 | 27/03/2019 | Bronze |
| YTL INFRASTRUCTURE (UK) LIMITED | 15881749 | 06/08/2024 | Amber |
| YTL LAND AND PROPERTY (UK) LTD | 10015163 | 24/03/2016 | Not Trading |
| YTL PLACES LIMITED | 10539227 | 29/03/2019 | Not Trading |
| YTL PLANT AND FLEET SOLUTIONS (UK) LIMITED | 15881830 | 06/08/2024 | Amber |
| YTL PROPERTY HOLDINGS (UK) LIMITED | 09676296 | 19/06/2018 | One Red Flag |
| YTL STUDENT LIMITED | 16149853 | 23/12/2024 | Amber |
| YTL UTILITIES (UK) LIMITED | 04341837 | 20/02/2013 | Amber |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| ALBION WATER LIMITED | 03102176 | 16/08/2017 | 08/03/2022 | One Red Flag |
| BRISTOL WESSEX BILLING SERVICES LIMITED | 04143955 | 16/03/2010 | 07/06/2012 | Bronze |
| CHURCH PLACE MANAGEMENT COMPANY BRIDPORT LIMITED | 11393698 | 01/06/2018 | 16/12/2020 | Silver |
| SEARCHLIGHT COLLECTIONS LIMITED | 07940022 | 07/02/2012 | 04/09/2012 | Gold |
| WESSEX WATER PENSION SCHEME TRUSTEE LIMITED | 03913589 | 16/03/2010 | 29/09/2020 | Not Trading |
| WESSEX WATER SERVICES LIMITED | 02366648 | 16/03/2010 | 31/03/2020 | Silver |
| YTL UTILITIES HOLDINGS LIMITED | FC026872 | 15/03/2010 | 17/04/2018 | Dissolved |