| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| PREMIER SUPPORT SERVICES GROUP LIMITED | 13398789 | 14/05/2021 | One Red Flag |
| PREMIER SUPPORT SERVICES LIMITED | 02806257 | 06/06/2013 | Bronze |
| PSS (HOLDINGS) LTD | 09976510 | 29/01/2016 | Dissolved |
| PSS SUPPORT SERVICES LTD | 10007739 | 16/02/2016 | Dissolved |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| ALEXATECH INTEGRATED SYSTEMS LIMITED | 08636340 | 05/08/2013 | 01/10/2013 | Dissolved |
| BRITISH INSTITUTE OF CLEANING SCIENCE LIMITED(THE) | 01524014 | 24/06/2024 | 26/09/2024 | Bronze |
| CRANFIELD FM GROUP LIMITED | 12877282 | 06/10/2020 | 15/07/2021 | Gold |
| FORMOSA (HOLDINGS) LIMITED | 12877881 | 06/10/2020 | 15/07/2021 | Amber |
| PREMIER SUPPORT SERVICES GROUP LIMITED | 12532143 | 24/03/2020 | 14/11/2021 | Dissolved |
| QUANTUM (UK) LIMITED | 08548496 | 01/08/2013 | 15/08/2013 | Dissolved |
| QUANTUM UNITED KINGDOM LIMITED | 02798759 | 15/08/2013 | 15/08/2013 | Dissolved |