| WESTMINSTER, LIMITED | Private company limited by shares | Dissolved |
| Westminster Limited | Private company limited by shares | Live |
| Westminster Associates Limited | Private company limited by shares | Live |
| WESTMINSTER AVIATION PROFESSIONALS LIMITED | Private company limited by shares | Dissolved |
| Westminster & Brothers Company Limited | Private company limited by shares | Live |
| WESTMINSTER CAPITAL LIMITED | Private company limited by shares | Dissolved |
| CROWN CASTLE WESTMINSTER LIMITED | Private company limited by shares | Live |
| WESTMINSTER CLUB LIMITED -THE- | Company limited by guarantee | Dissolved |
| WESTMINSTER COIN EXCHANGE, LIMITED | Private company limited by shares | Dissolved |
| WESTMINSTER PUBLISHING CORPORATION LIMITED | Private company limited by shares | Dissolved |
| Westminster Courthouse Limited | Private company limited by shares | Dissolved |
| Westminster Education Limited | Private company limited by shares | Live |
| WESTMINSTER MACHINERY ENGINEERING LIMITED | Private company limited by shares | Live |
| WESTMINSTER ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| WESTMINSTER FINANCIAL RESOURCES LIMITED | Private company limited by shares | Dissolved |
| Westminster Education Foundation Limited | Company limited by guarantee | Live |
| WESTMINSTER FUND LIMITED | Private company limited by shares | Live |
| Westminster Education Fund Limited | Company limited by guarantee | Live |
| WESTMINSTER FUND MANAGEMENT LIMITED | Private company limited by shares | Dissolved |
| Westminster Gardens Limited | Private company limited by shares | Live |
| WESTMINSTER GROUP LIMITED -THE- | Private company limited by shares | Dissolved |
| WESTMINSTER GROUP LIMITED | Private company limited by shares | Live |
| Westminster Technology Group Limited | Private company limited by shares | Live |
| WESTMINSTER CLOCK (HK) COMPANY LIMITED | Private company limited by shares | Live |
| WESTMINSTER INC. (H.K.) LIMITED | Private company limited by shares | Live |
| WESTMINSTER INDUSTRIAL (HK) COMPANY LIMITED | Private company limited by shares | Live |
| Tesco Westminster (HK) Co. Limited | Private company limited by shares | Dissolved |
| WESTMINSTER HOLDINGS LIMITED | Private company limited by shares | Live |
| WESTMINSTER ASIA PACIFIC HONG KONG LIMITED | Private company limited by shares | Dissolved |
| Hong Kong Westminster School Company Limited | Private company limited by shares | Live |
| WESTMINSTER TEA HOUSE LIMITED | Private company limited by shares | Dissolved |
| WESTMINSTER INTERNATIONAL LIMITED | Private company limited by shares | Live |
| Westminster International Education Limited | | Live |
| WESTMINSTER ASSOCIATES INTERNATIONAL (HONG KONG) LIMITED | Private company limited by shares | Dissolved |
| WESTMINSTER MARKETING COMMUNICATIONS LIMITED | Private company limited by shares | Dissolved |
| WESTMINSTER NOMINEES LIMITED | Private company limited by shares | Live |
| WESTMINSTER PROPERTIES LIMITED | Private company limited by shares | Dissolved |
| WESTMINSTER EDUCATIONAL SERVICES LIMITED | Private company limited by shares | Live |
| WESTMINSTER FINANCIAL SERVICES GROUP, LIMITED | Private company limited by shares | Dissolved |
| WESTMINSTER SHARE LIMITED | Private company limited by shares | Dissolved |
| WESTMINSTER TOURS ASIA LIMITED | Private company limited by shares | Live |
| WESTMINSTER TRAVEL LIMITED | Private company limited by shares | Live |
| WESTMINSTER TRAVEL (CHINA) LIMITED | Private company limited by shares | Live |
| WESTMINSTER TRAVEL (GUANGZHOU) LIMITED | Private company limited by shares | Live |
| WESTMINSTER TRAVELS LIMITED | Private company limited by shares | Live |
| WESTMINSTER WELFAIR TRAVEL (N.T.) LIMITED | Private company limited by shares | Dissolved |
| WESTMINSTER WELFAIR TRAVEL (SHEUNG SHUI) LIMITED | Private company limited by shares | Dissolved |