| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| 12441150 LIMITED | 12441150 | 04/02/2020 | Dissolved |
| D-R HOLDINGS (UK) LTD | 05261879 | 11/10/2019 | Dissolved |
| DRESSER -RAND (U.K.) LIMITED | 00759945 | 11/10/2019 | Dissolved |
| DRESSER-RAND COMPANY LTD | 06628833 | 11/10/2019 | Dissolved |
| MATERIALS SOLUTIONS (HOLDINGS) LIMITED | 09357138 | 12/03/2019 | Dissolved |
| VA TECH (UK) LIMITED | 03562487 | 20/03/2020 | Dissolved |
| WINDWARD ENERGY LIMITED | 11390947 | 23/04/2024 | Silver |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| E.C.I.A. (INSURANCE SERVICES) LIMITED | 04333180 | 25/05/2006 | 31/03/2008 | Not Trading |
| E.C.I.A. TRUSTEES LIMITED | 03355862 | 25/05/2006 | 31/03/2008 | Not Trading |
| INDUSTRIAL TURBINE COMPANY (UK) LIMITED | 09003402 | 15/04/2021 | 01/01/2024 | Silver |
| MATERIALS SOLUTIONS LIMITED | 09364823 | 12/03/2019 | 01/01/2024 | One Red Flag |
| NSAR LIMITED | 07484465 | 03/12/2012 | 01/12/2016 | Bronze |
| SIEMENS ENERGY INDUSTRIAL TURBOMACHINERY LIMITED | 04729734 | 15/06/2020 | 01/01/2024 | Silver |
| SIEMENS ENERGY LIMITED | 00631825 | 22/05/2019 | 01/01/2024 | Bronze |
| SIEMENS RAIL SYSTEMS PROJECT HOLDINGS LIMITED | 08554256 | 22/11/2013 | 21/06/2017 | Dissolved |
| SIEMENS RAIL SYSTEMS PROJECT LIMITED | 08554237 | 22/11/2013 | 21/06/2017 | Dissolved |