| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| ACTEMIUM UK LIMITED | 00065493 | 31/03/2022 | Silver |
| AND AUTOMATION LIMITED | 04446070 | 31/03/2022 | Amber |
| AXIANS NETWORKS LIMITED | 04407184 | 31/03/2022 | Bronze |
| COUGAR AUTOMATION LIMITED | 02397024 | 31/03/2022 | One Red Flag |
| ELTEK SYSTEMS LIMITED | 01691497 | 31/03/2022 | One Red Flag |
| HAC HOLDINGS (WALES) LIMITED | 08726019 | 15/08/2023 | Silver |
| HARRIES AUTOMATION & CONTROL LIMITED | 03047241 | 15/08/2023 | Silver |
| KELVIN CONSTRUCTION COMPANY LIMITED | 07934819 | 31/03/2022 | Gold |
| KELVIN ENERGY (UK) LIMITED | 03879529 | 31/03/2022 | Insolvent |
| KELVIN POWER ENGINEERING LIMITED | 06515644 | 31/03/2022 | Insolvent |
| KIGTEK SOLUTIONS LIMITED | SC349224 | 31/03/2022 | Gold |
| LEE BEESLEY INTERNATIONAL LIMITED | 00497715 | 21/06/2021 | Not Trading |
| MAY & ROBERTSON LIMITED | 00710434 | 21/06/2021 | Dissolved |
| NORPOWER LTD. | SC258471 | 07/08/2023 | Bronze |
| NORTH WEST PROJECTS LIMITED | 02089134 | 31/03/2022 | Gold |
| NOUVEAU SOLUTIONS LIMITED | 02699382 | 31/03/2022 | One Red Flag |
| POWELL ENGINEERING UK LIMITED | 03854782 | 31/03/2022 | Bronze |
| POWERTEAM ELECTRICAL SERVICES (UK) LIMITED | NI034635 | 31/03/2022 | One Red Flag |
| QSI GROUP LTD | 03698142 | 31/03/2022 | Silver |
| VINCI ENERGIES UK HOLDING LIMITED | 08804424 | 31/03/2022 | Silver |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| AXIANS NETWORKS LIMITED | 04407184 | 23/01/2015 | 27/02/2018 | Bronze |
| KIGTEK ELECTRICAL LIMITED | SC463757 | 31/03/2022 | 14/08/2023 | Dissolved |