| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| ARTEMIS MEDICAL COMMUNICATIONS LTD | 08245194 | 09/10/2012 | Dissolved |
| CENTRAL HEALTHCARE COMMUNICATIONS LIMITED | 05125330 | 14/05/2007 | Dissolved |
| CENTRAL HEALTHCARE COMMUNICATIONS LIMITED | 05125330 | 11/05/2004 | Dissolved |
| THE CENTRAL PARTNERSHIP LLP | OC309451 | 04/10/2004 | Dissolved |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| 14 CURZON STREET 1 LIMITED | 07467580 | 19/07/2022 | 12/07/2024 | Bronze |
| 14 CURZON STREET 2 LIMITED | 10113647 | 18/11/2020 | 12/07/2024 | Bronze |
| ACCRETIO LIMITED | 09280023 | 18/11/2020 | 12/07/2024 | Strike Off |
| ARK COMMS.AGENCY LIMITED | 12106640 | 17/09/2021 | 12/07/2024 | Strike Off |
| ARK.AGENCY LIMITED | 11315455 | 17/09/2021 | 12/07/2024 | Silver |
| CHOICE HEALTHCARE SOLUTIONS LIMITED | 04072985 | 18/11/2020 | 12/07/2024 | Gold |
| ENGAGE BIDCO LIMITED | 14134266 | 14/07/2022 | 31/07/2024 | Silver |
| ENGAGE DEBTCO LIMITED | 14177197 | 14/07/2022 | 31/07/2024 | Silver |
| ENGAGE MIDCO LIMITED | 14173807 | 14/07/2022 | 31/07/2024 | Bronze |
| ENGAGE PIKCO LIMITED | 14171847 | 14/07/2022 | 31/07/2024 | Bronze |
| HARVEY WALSH LIMITED | 04575510 | 18/11/2020 | 12/07/2024 | Amber |
| LEC COMMUNICATIONS LIMITED | 03140767 | 18/11/2020 | 12/07/2024 | Strike Off |
| LIBERUM INDEPENDENT MEDICAL EDUCATION LIMITED | 10276499 | 18/11/2020 | 12/04/2023 | One Red Flag |
| OH INVESTORS LIMITED | 10856731 | 18/11/2020 | 12/07/2024 | Strike Off |
| OH PE HOLDINGS LIMITED | 11677880 | 18/11/2020 | 12/07/2024 | One Red Flag |
| OHC LONDON HOLDINGS LIMITED | 07568978 | 18/11/2020 | 12/07/2024 | One Red Flag |
| OPEN HEALTH ADVERTISING LIMITED | 05249856 | 18/11/2020 | 12/07/2024 | Strike Off |
| OPEN HEALTH COMMUNICATIONS LLP | OC360224 | 01/01/2017 | 03/12/2018 | Bronze |
| OPEN HEALTH PATIENT ENGAGEMENT LIMITED | 07916761 | 18/11/2020 | 12/07/2024 | Gold |
| OPEN LEC LIMITED | 02779179 | 18/11/2020 | 12/07/2024 | Strike Off |
| OPEN VIE LIMITED | 11854835 | 18/11/2020 | 12/07/2024 | Gold |
| OPEN VP HOLDINGS LIMITED | 07913835 | 18/11/2020 | 12/07/2024 | Strike Off |
| PH ASSOCIATES LIMITED | 03832368 | 18/11/2020 | 12/07/2024 | One Red Flag |
| PHARMERIT LIMITED | 06184878 | 07/12/2021 | 12/07/2024 | Silver |
| SPIRIT MEDICAL COMMUNICATIONS GROUP LIMITED | 05581186 | 29/07/2021 | 12/07/2024 | One Red Flag |
| SUCCINCT COMMUNICATIONS LIMITED | 03849470 | 18/11/2020 | 12/07/2024 | Gold |