| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| AUDIX BROADCAST LIMITED | 06344805 | 25/10/2013 | Dissolved |
| JOHN MASEFIELD HIGH SCHOOL AND SIXTH FORM CENTRE | 07631985 | 30/01/2024 | Silver |
| ULTRA ELECTRONICS PENSION TRUSTEE COMPANY LIMITED | 02900446 | 30/09/2020 | Not Trading |
| W & D HOLDINGS LIMITED | 04645977 | 25/10/2013 | Dissolved |
| WOOD & DOUGLAS LIMITED | 02844692 | 25/10/2013 | Dissolved |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| ULTRA ELECTRONICS CEMS LIMITED | 14403185 | 06/10/2022 | 10/07/2023 | Silver |
| ULTRA PCS LIMITED | 14356908 | 14/09/2022 | 10/07/2023 | Silver |