| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| HEART OF WALES PROPERTY SERVICES LIMITED | 10688295 | 24/04/2024 | One Red Flag |
| KIER BUILD LIMITED | 01551959 | 16/01/2024 | One Red Flag |
| KIER CONSTRUCTION LIMITED | 02099533 | 24/10/2023 | Bronze |
| KIER FACILITIES SERVICES LIMITED | 02624887 | 10/04/2024 | Silver |
| KIER INTERNATIONAL (INVESTMENTS) LIMITED | 01463191 | 23/10/2023 | Silver |
| KIER INTERNATIONAL LIMITED | 00810557 | 23/10/2023 | Amber |
| KIER NORTH TYNESIDE LIMITED | 06927150 | 24/04/2024 | Silver |
| KIER OVERSEAS (NINE) LIMITED | 01531039 | 23/10/2023 | One Red Flag |
| KIER OVERSEAS (SEVENTEEN) LIMITED | 01462100 | 23/10/2023 | One Red Flag |
| KIER OVERSEAS (TWENTY-THREE) LIMITED | 02127112 | 23/10/2023 | Amber |
| KIER SERVICES LIMITED | 02651873 | 10/04/2024 | Silver |
| PURE RECYCLING WARWICK LIMITED | 06436462 | 10/04/2024 | Amber |
| T H CONSTRUCTION LIMITED | 01532971 | 23/10/2023 | One Red Flag |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| KIER INFRASTRUCTURE AND OVERSEAS LIMITED | 01157281 | 01/09/2021 | 01/07/2023 | Bronze |
| KIER MINERALS LIMITED | 02099531 | 01/09/2021 | 01/07/2023 | Silver |
| KIER PROFESSIONAL SERVICES LIMITED | 08881783 | 01/09/2021 | 01/07/2023 | Silver |