| LE KIER LIMITED | Private company limited by shares | Dissolved |
| T.H. KIER BUILDERS LIMITED | Private company limited by shares | Dissolved |
| KIER CHAN LIMITED | Private company limited by shares | Live |
| Kier Global Change Management Limited | Private company limited by shares | Live |
| KIER INVESTMENT LIMITED | Private company limited by shares | Live |
| KIERA LIMITED | Private company limited by shares | Dissolved |
| KIERAN ENTERPRISES COMPANY LIMITED | Private company limited by shares | Dissolved |
| KIERAN ASIA PACIFIC GROUP LIMITED | Private company limited by shares | Dissolved |
| KIERMAR TECHNOLOGY LIMITED | Private company limited by shares | Dissolved |
| KIERON WATCH COMPANY LIMITED | Private company limited by shares | Dissolved |
| KIERRE ENTERPRISE COMPANY LIMITED | Private company limited by shares | Dissolved |
| KIERSON LIMITED | Private company limited by shares | Dissolved |