| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| ATLAS WARD BUILDING SYSTEMS LIMITED | 03303086 | 20/01/2014 | Dissolved |
| ATLAS WARD HOLDINGS LIMITED | 03307099 | 20/01/2014 | Dissolved |
| HARRY PEERS & CO LIMITED | 00287506 | 01/09/2020 | Dissolved |
| SEVERFIELD INFRASTRUCTURE LIMITED | 05196915 | 25/04/2022 | Gold |
| SEVERFIELD MODULAR SOLUTIONS LIMITED | 11180471 | 01/02/2020 | One Red Flag |
| SEVERFIELD NUCLEAR & INFRASTRUCTURE LIMITED | 01663267 | 01/09/2020 | Gold |
| STEEL CONSTRUCTION INSTITUTE(THE) | 01916698 | 01/11/2022 | Bronze |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| SEVERFIELD (DESIGN & BUILD) LIMITED | 04107553 | 01/01/2006 | 25/04/2022 | Silver |
| SEVERFIELD COMMERCIAL & INDUSTRIAL LIMITED | 02668795 | 22/06/2022 | 06/11/2023 | Silver |