| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| 'ALLO LANGUAGE SERVICES LIMITED | 02473293 | 11/05/2009 | Dissolved |
| Broomco (2149) Ltd | 03955545 | 31/01/2003 | Dissolved |
| CASTLEGATE 211 LIMITED | 04292514 | 11/05/2009 | Dissolved |
| CASTLEGATE 252 LIMITED | 03207419 | 11/05/2009 | Dissolved |
| CASTLEGATE 283 LIMITED | 03042328 | 11/05/2009 | Dissolved |
| CASTLEGATE 284 LIMITED | 04927157 | 11/05/2009 | Dissolved |
| FW PHARMA SYSTEMS (AMERICAS) LIMITED | 04084336 | 31/01/2003 | Dissolved |
| FWPS GROUP LIMITED | 04011615 | 31/01/2003 | Dissolved |
| Fraser Williams (Midlands) Ltd | 01192984 | 31/01/2003 | Dissolved |
| RANDOM ACCESS SERVICES LIMITED | 02793906 | 11/05/2009 | Dissolved |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| CLINPHONE DEVELOPMENT LIMITED | 04927152 | 11/05/2009 | 15/03/2018 | One Red Flag |
| CLINPHONE LIMITED | 05204138 | 14/08/2008 | 15/03/2018 | One Red Flag |
| DATAFARM UK LIMITED | 05452906 | 11/01/2013 | 15/03/2018 | Strike Off |
| EXECUPHARM UK LIMITED | 08010260 | 30/01/2017 | 15/03/2018 | Dissolved |
| HERON EVIDENCE DEVELOPMENT LIMITED | 03796817 | 30/04/2013 | 15/03/2018 | Insolvent |
| PAREXEL INTERNATIONAL (UK) LIMITED | 04985997 | 06/04/2004 | 15/03/2018 | Dissolved |
| PAREXEL INTERNATIONAL CORPORATION LTD. | 10938919 | 12/03/2018 | 31/12/2018 | Insolvent |
| PAREXEL INTERNATIONAL HOLDING UK LIMITED | 06609730 | 04/06/2008 | 15/03/2018 | Insolvent |
| PAREXEL MMS EUROPE LIMITED | 01488517 | 31/08/2002 | 15/03/2018 | Silver |
| PERCEPTIVE ECLINICAL LIMITED | 03264836 | 11/05/2009 | 15/03/2018 | One Red Flag |
| PERCEPTIVE INFORMATICS UK LIMITED | 03675405 | 31/01/2003 | 15/03/2018 | Amber |