| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| DFL FUSEGEAR LIMITED | 00362998 | 30/04/2013 | Dissolved |
| POWERTRON LIMITED | 04607114 | 15/04/2013 | Dissolved |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| BLADE TOOLING COMPANY LIMITED | 07485948 | 23/05/2018 | 26/09/2022 | One Red Flag |
| C&M 2016 LIMITED | 06453756 | 17/10/2022 | 06/09/2024 | Not Trading |
| COOPER BUSSMANN (U.K.) LIMITED | 00363685 | 15/04/2013 | 17/01/2018 | Dissolved |
| EATON CONTROLS (UK) LIMITED | 00619241 | 06/12/2017 | 17/01/2018 | Dissolved |
| EATON ELECTRICAL PRODUCTS LIMITED | 01342230 | 21/06/2016 | 17/01/2018 | Silver |
| EXCEL CALIBRATION & TEST LIMITED | 02822201 | 17/10/2022 | 06/09/2024 | Not Trading |
| FDM DIGITAL SOLUTIONS LTD | 08079612 | 12/11/2019 | 26/09/2022 | Bronze |
| GARDNER AEROSPACE - BASILDON LIMITED | 03921668 | 23/05/2018 | 26/09/2022 | Silver |
| GARDNER AEROSPACE - BURNLEY LIMITED | 04037765 | 23/05/2018 | 26/09/2022 | Dissolved |
| GARDNER AEROSPACE - DERBY LIMITED | 03563546 | 23/05/2018 | 26/09/2022 | Amber |
| GARDNER AEROSPACE - HULL LIMITED | 00644243 | 23/05/2018 | 26/09/2022 | Gold |
| GARDNER AEROSPACE - NUNEATON LIMITED | 03214418 | 23/05/2018 | 26/09/2022 | Dissolved |
| GARDNER AEROSPACE - WALES LIMITED | 00956749 | 23/05/2018 | 26/09/2022 | Dissolved |
| GARDNER AEROSPACE HOLDINGS LIMITED | 07978111 | 23/05/2018 | 26/09/2022 | Amber |
| GARDNER AEROSPACE-BROUGHTON LIMITED | 05942288 | 23/05/2018 | 26/09/2022 | Gold |
| GARDNER GROUP LIMITED | 04672639 | 23/05/2018 | 26/09/2022 | Amber |
| GEB SURFACE TREATMENTS LIMITED | 05419979 | 17/10/2022 | 06/09/2024 | Bronze |
| L.M.D. PROCESS LIMITED | 01206475 | 17/10/2022 | 06/09/2024 | Not Trading |
| MARTEK POWER LIMITED | 04588863 | 15/04/2013 | 17/01/2018 | Dissolved |
| NASMYTH BULWELL LIMITED | 00568879 | 17/10/2022 | 06/09/2024 | One Red Flag |
| NASMYTH COMPOSITES LIMITED | 08347855 | 17/10/2022 | 06/09/2024 | Not Trading |
| NASMYTH COVENTRY LIMITED | 06434298 | 17/10/2022 | 06/09/2024 | One Red Flag |
| NASMYTH DOUGHTY LIMITED | 05394508 | 17/10/2022 | 06/09/2024 | One Red Flag |
| NASMYTH ENGINEERING LIMITED | 06434359 | 17/10/2022 | 06/09/2024 | Not Trading |
| NASMYTH ENTERPRISES LIMITED | 08527785 | 17/10/2022 | 06/09/2024 | One Red Flag |
| NASMYTH GROUP LIMITED | 14534809 | 05/05/2023 | 06/09/2024 | Bronze |
| NASMYTH HENTON LIMITED | 06453721 | 17/10/2022 | 06/09/2024 | One Red Flag |
| NASMYTH IEC LIMITED | 05476239 | 17/10/2022 | 06/09/2024 | One Red Flag |
| NASMYTH INDUSTRIES LIMITED | 04973391 | 17/10/2022 | 06/09/2024 | Amber |
| NASMYTH TECHNOLOGIES LIMITED | 09046577 | 17/10/2022 | 06/09/2024 | Amber |
| NGL REALISATIONS LIMITED | 04932645 | 17/10/2022 | 06/09/2024 | Insolvent |
| PROFESSIONAL WELDING SERVICES LIMITED | 03215417 | 17/10/2022 | 06/09/2024 | Not Trading |
| SWIFT & WASS LIMITED | 02883591 | 17/10/2022 | 06/09/2024 | Not Trading |
| WEST MIDDLESEX PLATING COMPANY LIMITED | 05539672 | 17/10/2022 | 06/09/2024 | Not Trading |