| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| ADVANCED INNERGY EBT LTD | 10584420 | 01/08/2018 | Not Trading |
| ADVANCED INNERGY HOLDINGS LTD | 08848899 | 01/08/2018 | Bronze |
| CASTLEGATE NEXUS LIMITED | 09432082 | 27/03/2017 | Dissolved |
| FUTRAHEAT LIMITED | 10329842 | 18/09/2024 | Silver |
| GROUSE TOPCO LIMITED | 10433106 | 31/01/2020 | Amber |
| NUCORE GROUP HOLDINGS LIMITED | SC699713 | 24/05/2021 | Amber |
| NUCORE GROUP LTD. | SC450189 | 25/02/2019 | Amber |
| OTEAC LIMITED | SC089639 | 01/08/2021 | Silver |
| RW INDUSTRIAL SERVICES LTD | 11120860 | 21/12/2017 | One Red Flag |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| ALTRAD ENVIRONMENTAL SERVICES OFFSHORE LIMITED | 03875779 | 16/03/2016 | 06/12/2016 | Silver |
| ALTRAD ENVIRONMENTAL SERVICES ONSHORE LIMITED | 03185923 | 16/03/2016 | 06/12/2016 | Silver |
| ALTRAD MOTHERWELL BRIDGE LIMITED | 06590880 | 31/05/2011 | 10/11/2016 | Bronze |
| ASPIN CONSTRUCTION GROUP LIMITED | 04293636 | 27/03/2017 | 21/02/2018 | Dissolved |
| ASPIN CONSULTING LIMITED | 04293695 | 27/03/2017 | 21/02/2018 | Dissolved |
| ASPIN GROUP LIMITED | 03923449 | 27/03/2017 | 21/02/2018 | Dissolved |
| ASPIN PLANT LIMITED | 04452499 | 27/03/2017 | 21/02/2018 | Dissolved |
| ASPIN RAIL LIMITED | 04915707 | 27/03/2017 | 21/02/2018 | Dissolved |
| ASPIN UNDERPINNING LIMITED | 04915732 | 27/03/2017 | 21/02/2018 | Dissolved |
| FMGH 1 LIMITED | 06411541 | 10/04/2019 | 05/02/2021 | Dissolved |
| HELIEX POWER LIMITED | SC387672 | 01/09/2016 | 13/09/2021 | Amber |
| MB ENGINEERING SERVICES LIMITED | SC043732 | 15/10/2007 | 06/12/2016 | Not Trading |
| MCGRATTAN PILING AND SUPPLIES LIMITED | 04915734 | 27/03/2017 | 21/02/2018 | Dissolved |
| POWERHOUSE ENERGY GROUP PLC | 03934451 | 04/02/2022 | 10/06/2022 | Amber |
| ROGERS STRUCTURAL INVESTIGATIONS LIMITED | 06201896 | 27/03/2017 | 21/02/2018 | Dissolved |