| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| B.C. (CIVILS) LIMITED | 04196113 | 01/04/2022 | Gold |
| CATALYST ENGINEERING LIMITED | 06452790 | 29/09/2023 | Silver |
| ECS ENGINEERING SERVICES LTD. | 02454269 | 02/01/2019 | One Red Flag |
| ENGINEERING SOLUTIONS GROUP LIMITED | 13463982 | 18/06/2021 | One Red Flag |
| KB PROGRAMME MANAGEMENT LIMITED | 10687076 | 12/03/2019 | Strike Off |
| STEVE ILES HOLDINGS LIMITED | 14279652 | 05/08/2022 | Silver |
| WATER UTILITY PRODUCTS LIMITED | 13547320 | 04/08/2021 | Not Trading |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| DALBY HOLDINGS LIMITED | 03105119 | 06/08/1999 | 30/11/2018 | Bronze |
| HARRY DALBY ENGINEERING LIMITED | 01929615 | 01/05/1995 | 30/11/2018 | One Red Flag |
| J W BONSER (WALSALL) LIMITED | 04689485 | 04/04/2003 | 15/04/2014 | Dissolved |
| REGENT ENGINEERS LIMITED | 00914011 | 05/05/1999 | 30/11/2018 | One Red Flag |