| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| SONIC HEALTHCARE HOLDING COMPANY | 04339040 | 11/03/2002 | Bronze |
| Sonic Finance Holdings Ltd | 05104378 | 16/04/2004 | Dissolved |
| TDL GENETICS LIMITED | 03959656 | 29/07/2003 | Silver |
| THE DOCTORS LABORATORY (MANCHESTER) LIMITED | 02171329 | 27/11/2008 | Dissolved |
| THE DOCTORS LABORATORY LIMITED | 02201998 | 29/07/2003 | Gold |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| AUTOLAB PARTNERSHIPS LIMITED | 04663324 | 29/07/2003 | 16/10/2016 | Dissolved |
| CYTOGENETIC SERVICES LIMITED | 02118496 | 29/07/2003 | 16/10/2016 | Dissolved |
| DRUG ALERT LIMITED | 03105425 | 04/07/2003 | 16/10/2016 | Dissolved |
| FARRER-BROWN HISTOPATHOLOGY LIMITED | 02871187 | 04/07/2003 | 16/10/2016 | Dissolved |
| J.S. PATHOLOGY SERVICES LIMITED | 01865907 | 04/07/2003 | 16/10/2016 | Dissolved |
| JS CLINICAL RESEARCH LIMITED | 02274859 | 04/07/2003 | 16/10/2016 | Dissolved |
| JS PATHOLOGY LIMITED | 01907290 | 04/07/2003 | 16/10/2016 | Dissolved |
| LIMBO BUILDERS LIMITED | 02257632 | 04/07/2003 | 16/10/2016 | Dissolved |
| OMNILABS (UK) LIMITED | 01215906 | 04/07/2003 | 16/10/2016 | Dissolved |
| OMNILABS IMAGING LIMITED | 02060623 | 04/07/2003 | 16/10/2016 | Dissolved |
| OMNILABS TRUST LABORATORIES LIMITED | 02947374 | 04/07/2003 | 16/10/2016 | Dissolved |
| ROADHAVEN LIMITED | 03958485 | 29/07/2003 | 16/10/2016 | Dissolved |
| SONIC HEALTHCARE PATHOLOGY LIMITED | 02865820 | 04/07/2003 | 16/10/2016 | Dissolved |
| T.D.L. ANALYTICAL LIMITED | 03169980 | 29/07/2003 | 16/10/2016 | Dissolved |
| TECHNICAL LABORATORY SERVICES LIMITED | 01167436 | 04/07/2003 | 16/10/2016 | Dissolved |
| THE DOCTORS HEALTHCARE COMPANY LIMITED | 03538068 | 29/07/2003 | 16/10/2016 | Dissolved |
| WHITFIELD STREET LABORATORY LIMITED | 04690059 | 29/07/2003 | 16/10/2016 | Dissolved |
| WHITFIELD STREET PROPERTIES LIMITED | 05103253 | 28/04/2004 | 04/04/2019 | Dissolved |