| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| A M RAIL GROUP LIMITED | 09514845 | 11/10/2016 | Insolvent |
| BRECKNELL WILLIS COMPOSITES LIMITED | 03150185 | 05/06/2014 | Dissolved |
| FANDSTAN ELECTRIC GROUP LIMITED | 01092643 | 05/06/2014 | Silver |
| FANDSTAN ELECTRIC LIMITED | 01472039 | 05/06/2014 | Silver |
| FANDSTAN ELECTRIC SYSTEMS LIMITED | 07800079 | 05/06/2014 | Dissolved |
| MELETT LIMITED | 04442787 | 30/11/2017 | Gold |
| NAPIER TURBOCHARGERS (HOLDINGS) LIMITED | 06548130 | 31/01/2013 | Dissolved |
| WABTEC UK LIMITED | 02923485 | 19/07/2021 | Silver |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| A M SIGNALLING DESIGN LIMITED | 08042265 | 11/10/2016 | 03/10/2022 | Insolvent |
| BRECKNELL, WILLIS & CO. LIMITED | 00306444 | 05/06/2014 | 03/10/2022 | Insolvent |
| COLEMAN HYDRAULICS LIMITED | 05222184 | 19/07/2021 | 01/08/2022 | Dissolved |
| KEELEX 351 LIMITED | 07209033 | 19/07/2021 | 03/10/2022 | Insolvent |
| L H ACCESS TECHNOLOGY LIMITED | 04630534 | 19/07/2021 | 01/08/2022 | Dissolved |
| L H GROUP SERVICES LIMITED | 01394005 | 19/07/2021 | 03/10/2022 | Insolvent |
| L H GROUP WHEELSETS LIMITED | 04452814 | 19/07/2021 | 01/08/2022 | Dissolved |
| NAPIER TURBOCHARGERS LIMITED | 06512358 | 31/01/2013 | 22/11/2023 | Insolvent |
| PARTS SUPPLY LIMITED | 02518305 | 19/07/2021 | 01/08/2022 | Insolvent |
| VAPOR RICON EUROPE LTD | 01074541 | 13/01/2021 | 01/08/2022 | Insolvent |
| WABTEC UK MANUFACTURING LIMITED | 10437349 | 20/10/2016 | 01/03/2017 | Dissolved |