| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| AEI CONSULTING LIMITED | 07431481 | 05/11/2010 | Dissolved |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| ENVITIA LTD | 02348404 | 25/02/2003 | 28/08/2005 | Silver |
| S R ANTENNA SYSTEMS LIMITED | 04954570 | 23/01/2024 | 17/06/2024 | Not Trading |
| STS DEFENCE GROUP LIMITED | 14046781 | 20/03/2023 | 17/06/2024 | Silver |
| STS DEFENCE HOLDINGS LIMITED | 13447585 | 20/03/2023 | 17/06/2024 | Silver |
| STS DEFENCE LIMITED | 03193298 | 08/08/2018 | 17/06/2024 | Gold |
| STS INTELLIMON LIMITED | 04834424 | 16/04/2020 | 16/07/2024 | Amber |