| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| CLM ENGINEERING (OVERSEAS) LIMITED | 02992285 | 08/07/2024 | Not Trading |
| COSTAIN CONSTRUCTION LIMITED | 00563270 | 08/07/2024 | Not Trading |
| COSTAIN INTERNATIONAL LIMITED | 00563275 | 21/06/2024 | Amber |
| COSTAIN MANAGEMENT DESIGN LIMITED | 01599349 | 08/07/2024 | Not Trading |
| COSTAIN OIL, GAS & PROCESS (OVERSEAS) LIMITED | 00583789 | 08/07/2024 | Not Trading |
| COSTAIN PROCESS CONSTRUCTION LIMITED | 00590330 | 08/07/2024 | Not Trading |
| PROMANEX (CIVILS & INDUSTRIAL SERVICES) LIMITED | 02224393 | 08/07/2024 | Not Trading |
| PROMANEX (CONSTRUCTION & MAINTENANCE SERVICES) LIMITED | 03548978 | 08/07/2024 | Not Trading |
| PROMANEX (TOTAL FM & ENVIRONMENTAL SERVICES) LIMITED | 03230494 | 08/07/2024 | Bronze |
| RICHARD COSTAIN LIMITED | 00274453 | 03/05/2024 | Bronze |
| WESTMINSTER PLANT CO. LIMITED | 00552140 | 21/06/2024 | Not Trading |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| CAPITA CORPORATE DIRECTOR LIMITED | 05641516 | 21/10/2019 | 09/07/2021 | Not Trading |