| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| GARSIDE & LAYCOCK (GROUP) LIMITED | 01999783 | 22/06/2017 | Dissolved |
| GARSIDE AND LAYCOCK LTD | 02630794 | 22/06/2017 | Dissolved |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| DALKIA FACILITIES NORTHERN UK LIMITED | 05970050 | 24/04/2017 | 31/05/2023 | Amber |
| DALKIA OPERATIONS HOLDING LIMITED | 07201157 | 24/04/2017 | 31/05/2023 | Amber |
| DALKIA OPERATIONS LIMITED | 06275653 | 24/04/2017 | 31/05/2023 | Bronze |
| DALKIA SCOTSHIELD LIMITED | SC133446 | 24/04/2017 | 31/05/2023 | Silver |
| DK WHS LIMITED | 05211611 | 24/04/2017 | 31/05/2023 | Gold |
| ENVIRONMENTAL ENGINEERING (UK) LIMITED | 02601117 | 24/04/2017 | 31/05/2023 | Gold |
| ENVIRONMENTAL ENGINEERING LIMITED | 08388232 | 24/04/2017 | 31/05/2023 | Amber |
| LEVEN ENERGY SERVICES LIMITED | 06731507 | 24/04/2017 | 31/05/2023 | Amber |
| MEDICAL & SCIENTIFIC STRUCTURES LIMITED | 10117952 | 24/04/2017 | 31/05/2023 | Not Trading |
| MSS CLEAN TECHNOLOGY LIMITED | 08938560 | 24/04/2017 | 31/05/2023 | Silver |
| POWER AND NUCLEAR UK LIMITED | 07243781 | 22/06/2017 | 31/05/2023 | Not Trading |
| TRIOS COMPLIANCE LIMITED | 05418465 | 24/04/2017 | 20/03/2020 | Not Trading |
| TRIOS FACILITIES LIMITED | 05774442 | 24/04/2017 | 20/03/2020 | Not Trading |
| TRIOS FACILITIES MANAGEMENT LIMITED | 03616663 | 24/04/2017 | 20/03/2020 | One Red Flag |
| TRIOS SECURE LIMITED | 03169729 | 24/04/2017 | 20/03/2020 | Not Trading |
| TRIOS SKILZ LIMITED | 03649813 | 24/04/2017 | 20/03/2020 | Not Trading |
| TRIOSGROUP LIMITED | 05231558 | 24/04/2017 | 20/03/2020 | One Red Flag |