| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| SILK ROAD ARTIFICIAL INTELLIGENCE LIMITED | 13903738 | 09/02/2022 | Dissolved |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| AGILITY TRAINS EAST (HOLDINGS) LIMITED | 07930434 | 24/09/2018 | 26/10/2020 | Bronze |
| AGILITY TRAINS EAST (MIDCO) LIMITED | 07930515 | 24/09/2018 | 26/10/2020 | Bronze |
| AGILITY TRAINS EAST LIMITED | 07930598 | 24/09/2018 | 26/10/2020 | Bronze |
| CHRYSALIS LP LIMITED | SC229485 | 28/03/2014 | 04/09/2015 | Dissolved |
| ELBON HOLDINGS (1) LIMITED | 05569426 | 28/03/2014 | 04/09/2015 | Silver |
| ELBON HOLDINGS (2) LIMITED | 05573871 | 28/03/2014 | 04/09/2015 | Silver |
| ELBON HOLDINGS (3) LIMITED | 05572070 | 28/03/2014 | 04/09/2015 | One Red Flag |
| ELBON PFI (NT) LIMITED | SC217750 | 04/04/2014 | 04/09/2015 | Dissolved |
| ELBON PFI FUND LIMITED | 03846378 | 28/03/2014 | 04/09/2015 | Dissolved |
| GH PPP HOLDINGS LIMITED | 03747270 | 08/04/2014 | 04/09/2015 | Dissolved |
| I2 BIDCO LIMITED | 06228634 | 27/04/2014 | 04/09/2015 | Silver |
| I2 HOLDCO 2 LIMITED | 06239026 | 28/03/2014 | 04/09/2015 | Silver |
| I2 HOLDCO LIMITED | 06228633 | 27/04/2014 | 04/09/2015 | Bronze |
| INFRASTRUCTURE INVESTORS LIMITED | 04789693 | 28/03/2014 | 04/09/2015 | Dissolved |
| JOHN LAING PROJECTS & DEVELOPMENTS (HOLDINGS) LIMITED | 04252518 | 18/10/2017 | 30/04/2021 | Gold |
| LANTERNDEW LIMITED | 05133562 | 28/03/2014 | 04/09/2015 | Gold |
| NEW ANAVON LIMITED | 04157360 | 28/03/2014 | 04/09/2015 | Dissolved |
| NEW NT HOLDCO LIMITED | 04334392 | 28/03/2014 | 04/09/2015 | Dissolved |
| NEW NT LIMITED | SC229484 | 28/03/2014 | 04/09/2015 | Dissolved |
| NPFI MANAGEMENT (2038) LIMITED | SC238098 | 28/03/2014 | 04/09/2015 | Dissolved |
| NPFI SECURITY (AUG 2010) LIMITED | 04573936 | 28/03/2014 | 04/09/2015 | Dissolved |
| PFI (LIMITED PARTNER) LIMITED | SC201127 | 28/03/2014 | 04/09/2015 | Dissolved |
| PFI INFRACO LIMITED | 04574181 | 28/03/2014 | 04/09/2015 | Dissolved |
| PFI INFRASTRUCTURE FINANCE LIMITED | 05092397 | 03/04/2014 | 04/09/2015 | Gold |
| PFI SENIOR FUNDING LIMITED | 04138478 | 28/03/2014 | 04/09/2015 | Gold |
| THE WALSALL HOSPITAL COMPANY (HOLDINGS) LIMITED | 06307693 | 01/11/2013 | 04/09/2015 | Bronze |
| THE WALSALL HOSPITAL COMPANY PLC | 06358056 | 01/11/2013 | 04/09/2015 | Bronze |