| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| WESTON AERO 2003 | 03817397 | 01/03/2018 | Dissolved |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| DARCHEM ENGINEERING LIMITED | SC144767 | 01/03/2018 | 14/03/2019 | Gold |
| DARCHEM HOLDINGS LIMITED | 03966333 | 01/03/2018 | 14/03/2019 | Silver |
| EST DEFENCE COMPANY UK LIMITED | 00675623 | 01/03/2018 | 14/03/2019 | Not Trading |
| ESTERLINE ACQUISITION LIMITED | 05720105 | 01/03/2018 | 14/03/2019 | One Red Flag |
| ESTERLINE INTERFACE TECHNOLOGIES LIMITED | 08331349 | 01/03/2018 | 14/03/2019 | Silver |
| ESTERLINE TECHNOLOGIES ACQUISITION LIMITED | 04759585 | 01/03/2018 | 14/03/2019 | Dissolved |
| ESTERLINE TECHNOLOGIES EUROPE LIMITED | 06787209 | 01/03/2018 | 14/03/2019 | Bronze |
| ESTERLINE TECHNOLOGIES GLOBAL LIMITED | 09002080 | 01/03/2018 | 14/03/2019 | Silver |
| ESTERLINE TECHNOLOGIES HOLDINGS LIMITED | 05148070 | 01/03/2018 | 14/03/2019 | Amber |
| ESTERLINE TECHNOLOGIES UNLIMITED | 03837209 | 01/03/2018 | 14/03/2019 | Gold |
| GAMESMAN LIMITED | 03027138 | 01/03/2018 | 14/03/2019 | Bronze |
| LEACH INTERNATIONAL UK LIMITED | 01026277 | 01/03/2018 | 14/03/2019 | Silver |
| PRESSURE SYSTEMS INTERNATIONAL LIMITED | 02858303 | 01/03/2018 | 14/03/2019 | Bronze |
| RACAL ACOUSTICS LIMITED | 05019038 | 01/03/2018 | 14/03/2019 | Gold |
| TA MFG LIMITED | 01979171 | 01/03/2018 | 14/03/2019 | Silver |
| TRANSDIGM MICROWAVE LIMITED | 07649574 | 01/03/2018 | 14/03/2019 | Silver |
| WALLOP DEFENCE UK LIMITED | 00410988 | 01/03/2018 | 14/03/2019 | Not Trading |
| WESTON AEROSPACE LIMITED | 04740406 | 01/03/2018 | 14/03/2019 | Gold |