| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| 4-FRONT RESEARCH LIMITED | 04175945 | 26/11/2009 | Dissolved |
| 4-FRONT RESEARCH UK LIMITED | 05268320 | 26/11/2009 | Dissolved |
| CML BIOTECH LIMITED | SC278971 | 13/02/2008 | Dissolved |
| COMMERCIAL MICROBIOLOGY LIMITED | SC112363 | 13/02/2008 | Dissolved |
| FERA SCIENCE LIMITED | 09413107 | 09/05/2016 | Gold |
| HAZEL II BIDCO LIMITED | 15208245 | 17/01/2024 | Bronze |
| HAZEL II MIDCO 1 LIMITED | 15209811 | 17/01/2024 | Bronze |
| HAZEL II MIDCO 2 LIMITED | 15209808 | 17/01/2024 | Bronze |
| HAZEL II TOPCO LIMITED | 15159853 | 17/01/2024 | Bronze |
| INTERTEK METERING AND MEASUREMENT LIMITED | SC176680 | 20/12/2004 | Dissolved |
| PROFITECH LIMITED | 05449827 | 01/10/2010 | Dissolved |
| SMITH REA ENERGY LIMITED | 01874922 | 09/01/2007 | Dissolved |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| CAPCIS LIMITED | 02291712 | 09/01/2007 | 18/12/2012 | Dissolved |
| CROP HEALTH AND PROTECTION LIMITED | 09922979 | 16/03/2016 | 12/04/2021 | Gold |
| ELECTRICAL MECHANICAL INSTRUMENT SERVICES (UK) LIMITED | SC137160 | 03/01/2008 | 21/12/2012 | Dissolved |
| EUROSPECTION LIMITED | 06167991 | 10/09/2012 | 18/12/2012 | Dissolved |
| ITS TESTING SERVICES (UK) LIMITED | 01408264 | 22/04/2004 | 18/12/2012 | Silver |
| MATERIALS TESTING & INSPECTION SERVICES LIMITED | 05532138 | 10/09/2012 | 18/12/2012 | Dissolved |
| METOC LIMITED | 01489779 | 27/10/2010 | 18/12/2012 | Silver |
| NDT SERVICES LIMITED | 01997290 | 10/09/2012 | 18/12/2012 | Bronze |
| NON DESTRUCTIVE TESTERS (MIDLANDS) LIMITED | 02521971 | 10/09/2012 | 18/12/2012 | Dissolved |
| QUALITY VERIFICATION SERVICES LIMITED | 02867549 | 10/09/2012 | 18/12/2012 | Dissolved |
| UMITEK LIMITED | 04113818 | 09/01/2007 | 09/07/2012 | Dissolved |