| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| MERCK BIOSCIENCES LTD | 02154136 | 01/04/2008 | Dissolved |
| MERCK SERVICES U.K. LIMITED | 05498866 | 03/04/2008 | Dissolved |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| AZ ELECTRONIC MATERIALS (UK) LIMITED | 06790365 | 31/03/2015 | 30/06/2017 | Dissolved |
| MERCK HOLDING LTD. | 08531583 | 19/06/2015 | 30/06/2017 | Silver |
| MERCK INVESTMENTS LIMITED | 04083127 | 19/06/2015 | 30/06/2017 | Not Trading |
| MERCK LIFE SCIENCE UK LIMITED | 00660457 | 01/04/2008 | 01/09/2012 | Gold |
| MERCK LTD | 00916419 | 19/06/2015 | 30/06/2017 | Not Trading |
| MERCK PERFORMANCE MATERIALS SERVICES UK LIMITED | 05183093 | 31/03/2015 | 30/06/2017 | Dissolved |
| MILLIPORE (U.K.) LIMITED | 04130249 | 31/03/2015 | 30/06/2017 | Gold |