| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| BLUBOX REAL ESTATE LIMITED | 11968336 | 29/04/2019 | Dissolved |
| BLUECORE ADVISORS LIMITED | 09883540 | 23/11/2015 | Dissolved |
| NAVIGATOR TERMINALS LIMITED | 09879899 | 27/03/2018 | Amber |
| NAVIGATOR TERMINALS MIDCO LIMITED | 09877838 | 27/03/2018 | Bronze |
| NCP GHENT HOLDING (UK) LIMITED | 12317036 | 15/11/2019 | Amber |
| NCP MULA HOLDINGS (UK) 1 LIMITED | 11363621 | 15/05/2018 | Gold |
| NCP MULA HOLDINGS (UK) 2 LIMITED | 11366514 | 16/05/2018 | Bronze |
| NCP ORBIS IV LIMITED | 15854850 | 23/07/2024 | Amber |
| NORTHLEAF CAPITAL PARTNERS (UK) LIMITED | 06997960 | 01/12/2019 | Bronze |
| NORTHLEAF STRATEGIC CAPITAL (UK) LTD. | 13694712 | 21/10/2021 | One Red Flag |
| QCL BIDCO LIMITED | 13349416 | 10/06/2021 | Amber |
| QCL HOLDINGS LIMITED | 11734097 | 10/06/2021 | Bronze |
| QCL MIDCO LIMITED | 13346904 | 10/06/2021 | Bronze |
| QCL TOPCO LIMITED | 13344204 | 10/06/2021 | Amber |
| QUICKLINE COMMUNICATIONS LIMITED | 05034183 | 10/06/2021 | Amber |
| TC UK BIDCO LIMITED | 13987865 | 18/03/2022 | Bronze |
| TC UK MIDCO LIMITED | 13987759 | 18/03/2022 | Bronze |
| TC UK TOPCO LIMITED | 13987637 | 18/03/2022 | Silver |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| KEMBLE WATER EUROBOND PLC | 05957999 | 10/06/2010 | 08/07/2011 | Bronze |
| KEMBLE WATER FINANCE LIMITED | 05819317 | 10/06/2010 | 08/07/2011 | Amber |
| KEMBLE WATER HOLDINGS LIMITED | 05819262 | 10/06/2010 | 08/07/2011 | Amber |
| KEMBLE WATER INVESTMENTS LIMITED | 05859428 | 10/06/2010 | 08/07/2011 | Dissolved |
| KEMBLE WATER LIBERTY LIMITED | 05819270 | 10/06/2010 | 08/07/2011 | Dissolved |
| KEMBLE WATER LIMITED | 05859424 | 10/06/2010 | 08/07/2011 | Dissolved |
| KEMBLE WATER STRUCTURE LIMITED | 05819276 | 10/06/2010 | 08/07/2011 | Dissolved |
| QCL BIDCO LIMITED | 13349416 | 21/04/2021 | 10/06/2021 | Amber |
| QCL MIDCO LIMITED | 13346904 | 20/04/2021 | 10/06/2021 | Bronze |
| QCL TOPCO LIMITED | 13344204 | 19/04/2021 | 10/06/2021 | Amber |
| SJD FREE SOLAR (UK) 1 LTD | 08433672 | 25/07/2018 | 22/09/2020 | Dissolved |
| SJD FREE SOLAR (UK) 2 LTD | 08425377 | 25/07/2018 | 22/09/2020 | Silver |
| SJD FREE SOLAR (UK) 3 LTD | 08474016 | 25/07/2018 | 22/09/2020 | Silver |
| STORMHARBOUR INVESTMENTS UK LLP | OC360299 | 07/03/2016 | 26/01/2018 | Dissolved |
| THAMES WATER HOLDINGS LIMITED | 05685587 | 10/06/2010 | 08/07/2011 | Dissolved |
| THAMES WATER LIMITED | 02366623 | 10/06/2010 | 08/07/2011 | Bronze |
| THAMES WATER UTILITIES HOLDINGS LIMITED | 06195202 | 10/06/2010 | 08/07/2011 | Amber |
| WALES & WEST GAS NETWORKS (HOLDINGS) LIMITED | 05095454 | 31/10/2008 | 20/06/2011 | Silver |
| WALES & WEST GAS NETWORKS (JUNIOR FINANCE) LIMITED | 05149491 | 31/10/2008 | 20/06/2011 | Dissolved |
| WALES & WEST GAS NETWORKS (SENIOR FINANCE) LIMITED | 05149493 | 31/10/2008 | 20/06/2011 | Dissolved |
| WALES & WEST UTILITIES FINANCE PLC | 06766848 | 26/05/2010 | 20/06/2011 | Silver |
| WALES & WEST UTILITIES HOLDINGS LIMITED | 07092596 | 09/03/2010 | 20/06/2011 | Silver |
| WALES & WEST UTILITIES LIMITED | 05046791 | 31/10/2008 | 20/06/2011 | Silver |