| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| CLEAN RIVER INVESTMENTS (1) LIMITED | 09576537 | 06/05/2015 | Dissolved |
| CLEAN RIVER INVESTMENTS (2) LIMITED | 09577181 | 06/05/2015 | Dissolved |
| CLEAN RIVER IP HOLDCO LIMITED | 09577454 | 06/05/2015 | Dissolved |
| CLEAN RIVER IP LIMITED | 09578130 | 06/05/2015 | Dissolved |
| NATS (EN ROUTE) PUBLIC LIMITED COMPANY | 04129273 | 01/04/2016 | Silver |
| NATS HOLDINGS LIMITED | 04138218 | 20/03/2014 | Silver |
| THE AIRLINE GROUP LIMITED | 03931711 | 20/03/2014 | Silver |
| THREE WATERS BIDCO LIMITED | 08106597 | 15/06/2012 | Dissolved |
| THREE WATERS MIDCO LIMITED | 08106524 | 14/06/2012 | Dissolved |
| USS SHERWOOD LIMITED | FC032211 | 19/11/2014 | Bronze |
| USS TATECO LIMITED | 09566961 | 29/04/2015 | Dissolved |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| CLYDE SPV LIMITED | 10662351 | 17/08/2017 | 31/10/2018 | Silver |
| GALLOPER HOLDCO LIMITED | 10492131 | 31/07/2017 | 31/10/2018 | Silver |
| NEW GREEN INTERIM HOLDCO LIMITED | 10542395 | 31/01/2017 | 31/10/2018 | Bronze |
| OSW CO HOLDINGS 1 LIMITED | 10490912 | 31/07/2017 | 31/10/2018 | One Red Flag |
| OSW CO HOLDINGS 2 LIMITED | 10491763 | 31/07/2017 | 31/10/2018 | One Red Flag |
| OSW LP HOLDCO LIMITED | 10492133 | 31/07/2017 | 31/10/2018 | One Red Flag |
| RAMPION HOLDCO LIMITED | 10492132 | 31/07/2017 | 31/10/2018 | Silver |
| RAMPION INVESTCO LIMITED | 10507143 | 31/07/2017 | 31/10/2018 | Bronze |
| UK GREEN INVESTMENT GALLOPER LIMITED | 09793796 | 17/08/2017 | 31/10/2018 | Bronze |
| UK GREEN INVESTMENT LYLE LIMITED | 10537974 | 17/08/2017 | 31/10/2018 | Bronze |
| UK GREEN INVESTMENT RAMPION LIMITED | 09579083 | 17/08/2017 | 31/10/2018 | Bronze |
| WMR HOLDCO LIMITED | 10492129 | 31/07/2017 | 31/10/2018 | Bronze |