| Name | Company Number | Date Appointed | Rating |
|---|
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| E2V LIMITED | 05149599 | 24/01/2017 | 28/03/2017 | Dissolved |
| EEV LIMITED | 04595977 | 24/01/2017 | 28/03/2017 | Dissolved |
| ORDNANCE SURVEY LIMITED | 09121572 | 17/06/2019 | 04/10/2021 | Silver |
| OXFORD INSTRUMENTS PLC | 00775598 | 01/07/2017 | 21/09/2021 | Gold |
| TELEDYNE E2V (OVERSEAS) HOLDINGS LIMITED | 06001141 | 24/01/2017 | 28/03/2017 | Dissolved |
| TELEDYNE UK LIMITED | 00432014 | 24/01/2017 | 28/03/2017 | Silver |