| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| ALDRIDGE PLASTICS HOLDINGS LIMITED | 01552189 | 04/08/2014 | Dissolved |
| CASTORS INTERNATIONAL LIMITED | 02879952 | 04/08/2014 | Dissolved |
| COLSON BRITISH CASTORS LIMITED | 05517913 | 04/08/2014 | Dissolved |
| COLSON CASTORS LIMITED | 00411142 | 04/08/2014 | Dissolved |
| FLEXELLO LIMITED | 04198442 | 04/08/2014 | Dissolved |
| GLOBAL CASTORS LIMITED | 01151232 | 04/08/2014 | Dissolved |
| J.B.D. PLASTICS LIMITED | 01424901 | 04/08/2014 | Dissolved |
| KIMAL GROUP PLC | 02377382 | 29/05/2024 | Bronze |
| KIMAL HOLDINGS LIMITED | 07912443 | 30/08/2024 | Silver |
| KIMAL MEDICAL SYSTEMS LIMITED | 01789020 | 29/05/2024 | Bronze |
| KIMAL PLC | 00827857 | 29/05/2024 | Silver |
| KIMAL SENSORS LTD | 10350025 | 29/05/2024 | Bronze |
| MT CATHETER TECHNOLOGIES LTD | 08679251 | 29/05/2024 | Not Trading |
| RHOMBUS CASTORS LIMITED | 01562038 | 04/08/2014 | Dissolved |
| SMITHIES INTERIM SOLUTIONS LIMITED | 08415881 | 22/02/2013 | Dissolved |
| THE REVVO CASTOR COMPANY LIMITED | 03120897 | 04/08/2014 | Dissolved |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| BLADE TOOLING COMPANY LIMITED | 07485948 | 18/01/2011 | 30/11/2012 | One Red Flag |
| BRITISH CASTORS LIMITED | 00153369 | 04/08/2014 | 01/05/2019 | Not Trading |
| COLSON UK LIMITED | 10623988 | 16/02/2017 | 24/04/2024 | Gold |
| GARDNER AEROSPACE - BASILDON LIMITED | 03921668 | 02/08/2010 | 30/11/2012 | Silver |
| GARDNER AEROSPACE - BURNLEY LIMITED | 04037765 | 02/08/2010 | 30/11/2012 | Dissolved |
| GARDNER AEROSPACE - DERBY LIMITED | 03563546 | 02/08/2010 | 30/11/2012 | Amber |
| GARDNER AEROSPACE - HULL LIMITED | 00644243 | 02/08/2010 | 30/11/2012 | Gold |
| GARDNER AEROSPACE - WALES LIMITED | 00956749 | 02/08/2010 | 30/11/2012 | Dissolved |
| GARDNER AEROSPACE-BROUGHTON LIMITED | 05942288 | 02/08/2010 | 30/11/2012 | Gold |
| GARDNER GROUP LIMITED | 04672639 | 02/08/2010 | 30/11/2012 | Amber |