| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| ACCURO FM LTD | 03070774 | 03/10/2023 | Silver |
| ACCURO GROUP HOLDINGS LIMITED | 12877541 | 03/10/2023 | Silver |
| ACCURO SUPPORT SERVICES GROUP LIMITED | 07905107 | 03/10/2023 | Amber |
| ENSCO 1194 LIMITED | 10348670 | 28/09/2018 | Dissolved |
| FIRE AND AIR SERVICES LIMITED | 06473866 | 28/09/2018 | Silver |
| KNOWSLEY POLYBAGGING LIMITED | 08039045 | 31/01/2019 | Dissolved |
| OAKWOOD AIR CONDITIONING LIMITED | 01288124 | 28/09/2018 | Dissolved |
| OAKWOOD TECHNOLOGY GROUP LIMITED | 02400512 | 28/09/2018 | Bronze |
| OCS FOOD CO LIMITED | 02569158 | 17/09/2018 | Silver |
| OCS GROUP UK&I LIMITED | 09022198 | 03/05/2019 | One Red Flag |
| OCS INTEGRATED SOLUTIONS LIMITED | SC142990 | 28/09/2018 | Silver |
| OCS M&E SERVICES LIMITED | SC033489 | 28/09/2018 | Bronze |
| OCS MANAGED SERVICES LIMITED | 05261471 | 17/09/2018 | Gold |
| OCS PEST CONTROL LIMITED | 04010488 | 17/09/2018 | Silver |
| OCS SECURITY LIMITED | 04376463 | 26/11/2018 | Silver |
| OCS UK&I LIMITED | 06355228 | 26/11/2018 | Amber |
| SERVEST BUILDING SERVICES LIMITED | 04626399 | 28/09/2018 | Dissolved |
| THERMOTECH FIRE PROTECTION LIMITED | 02787244 | 28/09/2018 | Gold |
| THERMOTECH MECHANICAL SERVICES LIMITED | 07702566 | 28/09/2018 | One Red Flag |
| THERMOTECH SOLUTIONS LIMITED | 08596374 | 28/09/2018 | Amber |
| UNIQUE CATERING AND MANAGEMENT SERVICES LIMITED | 03935606 | 17/09/2018 | Dissolved |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| AKTRION GROUP LIMITED | 03936590 | 28/09/2018 | 02/05/2019 | Bronze |
| AKTRION HOLDINGS LIMITED | 05246035 | 02/10/2018 | 02/05/2019 | Bronze |
| AKTRION MANUFACTURING SUPPORT SERVICES LIMITED | 03458202 | 28/09/2018 | 02/05/2019 | Gold |